H/K 570i... and repairs

I was at the flea market this morning and saw it sitting on the shelf at a friends place, he sells all kinds of vinyl gear. I couldn’t leave it for the $50 he was asking, so I brought it home. He had said that he had tested it and everything, although when I got home I hooked it up, and when I turned it on, a very loud pop came through the right speaker, followed by humming. I immediately turned it off to save my Missions, just in case, and opened it up to inspect it, although I haven’t found anything wrong. I’m gonna try cleaning out the switches and volume pots to see if that helps anything.
I will say, this thing is built like a frickin’ tank. Metal faceplate and volume knobs, big heat sink, weighs at least ~20 lbs. Harmon Kardon doesn’t mess around :wink: . I’ll probably try to get it fixed if it isn’t fixed by the DeOxit.
When I hook it back up to test, I’m gonna use some JBL woofers from an old set of j50s, so as to not destroy anything valuable. You guys have any idea what this could be in case the cleaning of switches doesn’t work?
Thanks,
Micah
2 channel
Speakers: Mission 770 Freedoms
Integrated amp: Technics SU-v75 and matching tuner
CDP: Technics SL-PC20
Cables: Monoprice, Monster, Acoustic Research, and a few generic ones
TT: Technics SL-3200, direct drive
Cartridge: Shure M97xE

Pc gaming setup
Receiver/amp: Yamaha RX-V665
Computer: Lenovo g50 (soon to be upgraded to a Dell Precision 690 which is far from stock!!)
Interconnects: Amazon basics HDMI, Acoustic Research HDMI, Monoprice speaker cables
Speakers: Boston Acoustics CR75s

Random equipment on standby:
Onkyo TX-v940, JBL woofers and tweeters, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, a whole bunch of 1”-3” full range drivers, Infinity Crescendo 3007s (on sale), Polk LSi25s
txcoastal1 wrote: »

You don't tell her you read the manual, and you tell her you know what the problem is, and you fixed it, because that what men do, fix things

Comments

  • NightfallNightfall Posts: 7,529
    I wouldn't turn it back on without having a professional look over it. Could be a fire hazard. You're never going to save up for a car if you keep buying broken electronics. Even a cheap car isn't that cheap.
    afterburnt wrote: »
    They didn't speak a word of English, they were from South Carolina.
  • mlistens03mlistens03 Posts: 1,407
    Nightfall wrote: »
    I wouldn't turn it back on without having a professional look over it. Could be a fire hazard. You're never going to save up for a car if you keep buying broken electronics. Even a cheap car isn't that cheap.

    In my defense... uh, I didn’t know it was broken. :tongue:
    I still plan to get a better integrated and cables, and then I’m moving onto a car. Once my gear sells I’ll still have a lot left over from the cables and integrated that I decide on (whether that be fixing this or getting a different one). I knew that if this worked, it would be an awesome upgrade, but it doesn’t seem to. Hoping I can fix it with some DeOxit on the switches, because after reading an AK thread, it seems that the switches being dirty can cause all sorts of problems with this thing. So I will clean out the switches and give it one more go... of course outside with a fire extinguisher on hand.
    I probably won’t get it looked at by a professional if I can’t fix it, because I don’t have the money for a professional. (At least I don’t think they do, repairs like this would cost a good chunk of money, right?) Since I am friends with the guy i bought it with, I can take it back to him and he will give me my money back. Try again I guess.
    Thanks again,
    Micah
    2 channel
    Speakers: Mission 770 Freedoms
    Integrated amp: Technics SU-v75 and matching tuner
    CDP: Technics SL-PC20
    Cables: Monoprice, Monster, Acoustic Research, and a few generic ones
    TT: Technics SL-3200, direct drive
    Cartridge: Shure M97xE

    Pc gaming setup
    Receiver/amp: Yamaha RX-V665
    Computer: Lenovo g50 (soon to be upgraded to a Dell Precision 690 which is far from stock!!)
    Interconnects: Amazon basics HDMI, Acoustic Research HDMI, Monoprice speaker cables
    Speakers: Boston Acoustics CR75s

    Random equipment on standby:
    Onkyo TX-v940, JBL woofers and tweeters, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, a whole bunch of 1”-3” full range drivers, Infinity Crescendo 3007s (on sale), Polk LSi25s
    txcoastal1 wrote: »

    You don't tell her you read the manual, and you tell her you know what the problem is, and you fixed it, because that what men do, fix things
  • mlistens03mlistens03 Posts: 1,407
    I can’t figure out how to get the switches apart, does anyone else have any ideas?
    Here are some pics:
    2kg2fg3ywzqk.jpeg
    n17jr5l50b0q.jpeg
    bmkomgmhpr53.jpeg
    f5ai13fak4sm.jpeg

    My dad thinks that the main power caps are bulging, but they don’t seem to be IMO.
    Do you guys think a recap will be in order? And if so, how should I look at that price wise? If it’s too expensive, I’ll store it until I have purchased a car.
    2 channel
    Speakers: Mission 770 Freedoms
    Integrated amp: Technics SU-v75 and matching tuner
    CDP: Technics SL-PC20
    Cables: Monoprice, Monster, Acoustic Research, and a few generic ones
    TT: Technics SL-3200, direct drive
    Cartridge: Shure M97xE

    Pc gaming setup
    Receiver/amp: Yamaha RX-V665
    Computer: Lenovo g50 (soon to be upgraded to a Dell Precision 690 which is far from stock!!)
    Interconnects: Amazon basics HDMI, Acoustic Research HDMI, Monoprice speaker cables
    Speakers: Boston Acoustics CR75s

    Random equipment on standby:
    Onkyo TX-v940, JBL woofers and tweeters, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, a whole bunch of 1”-3” full range drivers, Infinity Crescendo 3007s (on sale), Polk LSi25s
    txcoastal1 wrote: »

    You don't tell her you read the manual, and you tell her you know what the problem is, and you fixed it, because that what men do, fix things
  • ClipdatClipdat Posts: 4,243
    Waste of $50, imo. I thought you were going to get new speakers next, not more vintage gear.
    Got Dayens?
  • mlistens03mlistens03 Posts: 1,407
    Clipdat wrote: »
    Waste of $50, imo. I thought you were going to get new speakers next, not more vintage gear.

    I thought about it, and the lacking part of my system right now is my electronics. I will move onto speakers next. When I sell my gear, I was planning on getting speakers and an amp, with amp in top priority, but I already knew that I wanted to get a vintage Marantz/Yamaha/Pioneer/H/‘K/etc. Now that I want to get a car, speakers may have to wait. When I do get the funds, I will get the Monitor Audio Bronze 2s, so don’t think your suggestions went to waste. The plan I made has just been delayed.
    2 channel
    Speakers: Mission 770 Freedoms
    Integrated amp: Technics SU-v75 and matching tuner
    CDP: Technics SL-PC20
    Cables: Monoprice, Monster, Acoustic Research, and a few generic ones
    TT: Technics SL-3200, direct drive
    Cartridge: Shure M97xE

    Pc gaming setup
    Receiver/amp: Yamaha RX-V665
    Computer: Lenovo g50 (soon to be upgraded to a Dell Precision 690 which is far from stock!!)
    Interconnects: Amazon basics HDMI, Acoustic Research HDMI, Monoprice speaker cables
    Speakers: Boston Acoustics CR75s

    Random equipment on standby:
    Onkyo TX-v940, JBL woofers and tweeters, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, a whole bunch of 1”-3” full range drivers, Infinity Crescendo 3007s (on sale), Polk LSi25s
    txcoastal1 wrote: »

    You don't tell her you read the manual, and you tell her you know what the problem is, and you fixed it, because that what men do, fix things
  • mhardy6647mhardy6647 Posts: 18,417
    A fairly nice receiver, although a little past h/k's "glory years" -- but the one that passed through here, years back (dump find) had only one functional channel.

    Probably not quite worth the time, $, or effort, unfortunately, to rehabilitate.

    Nice aesthetics for that line of h/k components -- h/k generally made nice lookin' stuff.
    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

    "Some amps run on self bias, some amps run on fixed bias. But his amps run on confirmation bias." -- seen on audioasylum

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
  • mhardy6647mhardy6647 Posts: 18,417
    edited July 14
    Pop and hum is a bad sign.
    I am guessing shorted driver or output device or devices -- although it could be power supply related.

    If and when you 'smoke test' that receiver again, don't use loudspeakers -- first, check for DC on the loudspeaker outputs with a DMM or VOM. I don't know whether that h/k has speaker protection relays, fuses, otherwise (or nothing) -- I do know that it's not uncommon for a loudspeaker voice coil to act as a fuse to protect a receiver's protective circuitry from being damaged B)
    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

    "Some amps run on self bias, some amps run on fixed bias. But his amps run on confirmation bias." -- seen on audioasylum

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
  • mhardy6647mhardy6647 Posts: 18,417
    FWIW, and in case the OP didn't know it/find it already, hifiengine's got the OM, SM and some service bulletins for the 570i @ https://www.hifiengine.com/manual_library/harman-kardon/hk570i.shtml
    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

    "Some amps run on self bias, some amps run on fixed bias. But his amps run on confirmation bias." -- seen on audioasylum

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
  • mlistens03mlistens03 Posts: 1,407
    My dad is looking at it now, with his speakers that he doesn’t care too much about and if I had read your posts before you posted I would’ve warned him. But anyway, as it sat running and making noise, the hum would go up and down in frequency, intermittently go away, and then after a minute or two go away completely, and then sound pretty good. Me and my dad both guess that it is the contacts in the switches, so I’m gonna clean them out and we’ll see what happens. Worst case scenario, we take it back to the guy at the flea market, and give it back to the guy.
    2 channel
    Speakers: Mission 770 Freedoms
    Integrated amp: Technics SU-v75 and matching tuner
    CDP: Technics SL-PC20
    Cables: Monoprice, Monster, Acoustic Research, and a few generic ones
    TT: Technics SL-3200, direct drive
    Cartridge: Shure M97xE

    Pc gaming setup
    Receiver/amp: Yamaha RX-V665
    Computer: Lenovo g50 (soon to be upgraded to a Dell Precision 690 which is far from stock!!)
    Interconnects: Amazon basics HDMI, Acoustic Research HDMI, Monoprice speaker cables
    Speakers: Boston Acoustics CR75s

    Random equipment on standby:
    Onkyo TX-v940, JBL woofers and tweeters, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, a whole bunch of 1”-3” full range drivers, Infinity Crescendo 3007s (on sale), Polk LSi25s
    txcoastal1 wrote: »

    You don't tell her you read the manual, and you tell her you know what the problem is, and you fixed it, because that what men do, fix things
  • mlistens03mlistens03 Posts: 1,407
    After cleaning the switches with DeOxit, it still has the same symptoms. I can bring it back to the guy I bought it from, so I’ll take it back to him and return it, maybe try something else that he has. And this time, I’ll make sure it test it before we leave.
    Thanks all of you guys for your help,
    Micah
    2 channel
    Speakers: Mission 770 Freedoms
    Integrated amp: Technics SU-v75 and matching tuner
    CDP: Technics SL-PC20
    Cables: Monoprice, Monster, Acoustic Research, and a few generic ones
    TT: Technics SL-3200, direct drive
    Cartridge: Shure M97xE

    Pc gaming setup
    Receiver/amp: Yamaha RX-V665
    Computer: Lenovo g50 (soon to be upgraded to a Dell Precision 690 which is far from stock!!)
    Interconnects: Amazon basics HDMI, Acoustic Research HDMI, Monoprice speaker cables
    Speakers: Boston Acoustics CR75s

    Random equipment on standby:
    Onkyo TX-v940, JBL woofers and tweeters, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, a whole bunch of 1”-3” full range drivers, Infinity Crescendo 3007s (on sale), Polk LSi25s
    txcoastal1 wrote: »

    You don't tell her you read the manual, and you tell her you know what the problem is, and you fixed it, because that what men do, fix things
  • msgmsg Posts: 4,200
    Micah, just a note for future consideration - if something like this happens, speak to the seller immediately before taking a piece apart.

    You say you know this person so it might be okay, but I can't imagine there are many people around who'll let a buyer (who's not a professional repair tech) disassemble a damaged piece of gear to do some troubleshooting, and then accept a return afterward.

    You might be careful and know a bit, but there are probably more people who don't know what they're doing. Personally, if it were me, I'd be wary of accepting a return in a case like this out of concern that the buyer could have turned a simple problem a complicated one. Just my 2¢
  • mlistens03mlistens03 Posts: 1,407
    I wouldn’t have disassembled the amp had I bought it from anyone else, but he trusts me and knows that I know at least how to disassemble and reassemble everything safely, even if I can’t fix whatever may have been wrong. And all I did was just remove the front face, which is just remove 5 screws and then uncoil the light in the front. Then I cleaned the contacts and put everything back together. Very simple work, and he would trust me with (relatively) difficult work. Like I said, if it was anyone else, I wouldn’t have, but he trusts me.
    Thanks for your help with this,
    Micah
    2 channel
    Speakers: Mission 770 Freedoms
    Integrated amp: Technics SU-v75 and matching tuner
    CDP: Technics SL-PC20
    Cables: Monoprice, Monster, Acoustic Research, and a few generic ones
    TT: Technics SL-3200, direct drive
    Cartridge: Shure M97xE

    Pc gaming setup
    Receiver/amp: Yamaha RX-V665
    Computer: Lenovo g50 (soon to be upgraded to a Dell Precision 690 which is far from stock!!)
    Interconnects: Amazon basics HDMI, Acoustic Research HDMI, Monoprice speaker cables
    Speakers: Boston Acoustics CR75s

    Random equipment on standby:
    Onkyo TX-v940, JBL woofers and tweeters, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, a whole bunch of 1”-3” full range drivers, Infinity Crescendo 3007s (on sale), Polk LSi25s
    txcoastal1 wrote: »

    You don't tell her you read the manual, and you tell her you know what the problem is, and you fixed it, because that what men do, fix things
  • codycatalistcodycatalist Posts: 1,435
    Cool receiver! Honestly I only jump on vintage stuff if I know it is worth it. Is it worth the money...maybe but anything vintage will need a refresh eventually and that's where the money signs pile up.

    Now everyone has that vintage piece they desire (mine is Marantz Model 250) but I still wouldn't buy one unless it had been refreshed ahead of time even if it was cheap. Best of luck on the next item, I have been waiting a while to get a new amp or integrated and it will take a bit longer so just hold out and make due with what you have.
    Living room

    Mains: Paradigm 90P
    Lows: Velodyne CHT12, Pioneer SW-8Mk2
    Power: Marantz SR7000
    Tv: Samsung UHD 55' Curved 4k

    2 Channel Den

    Mains: SDA2B Upgraded XOs and Binding Posts
    Pre: Denon PRA-1200
    Power: Adcom GFA-545
    TT: Pioneer PL510
    Tv: Samsung UHD 55' 4K

    Noggin Rockin'

    Phillips L2
    Grado SE80
    Harman Kardon CL
    Little dot 1+/GE JAN 5654w

    Closet of Dreams:

    Harman Kardon AVR130
    Yamaha HTR5590
    Polk RTA11TL
    Polk TSI200s
    New Large Advents 25th Anniversary Edition
    Bravo V2/RCA Clear top Conn branded 12AU7
    Yamaha AV-34

    "Temptation is the manifestation of desire which equals necessity." - Mikey081057
    " I have always had a champange taste with a beer budget" - Rick88
    "Just because the thread is getting views don't mean much .. I like a good train wreck doesn't mean i want to be in one..." - pitdogg2
    "Those that don't know, don't know that they don't know." - heiney9
  • mlistens03mlistens03 Posts: 1,407
    Cool receiver! Honestly I only jump on vintage stuff if I know it is worth it. Is it worth the money...maybe but anything vintage will need a refresh eventually and that's where the money signs pile up.

    Now everyone has that vintage piece they desire (mine is Marantz Model 250) but I still wouldn't buy one unless it had been refreshed ahead of time even if it was cheap. Best of luck on the next item, I have been waiting a while to get a new amp or integrated and it will take a bit longer so just hold out and make due with what you have.

    A lot of good points. I think I may hold out to get something a little newer ... and something that works. However, maybe I should get something vintage and just eat the cost of refreshing it? From what I heard, it can make it sound like a totally different amplifier. Of course, I don’t know how much that would cost me, even using cheap caps.
    I kinda want to keep this one and eventually recap it, but I don’t know if it will even be fixed by a recap, so I think I will get one that works right now, then use it until I have money for a recap.
    Micah
    2 channel
    Speakers: Mission 770 Freedoms
    Integrated amp: Technics SU-v75 and matching tuner
    CDP: Technics SL-PC20
    Cables: Monoprice, Monster, Acoustic Research, and a few generic ones
    TT: Technics SL-3200, direct drive
    Cartridge: Shure M97xE

    Pc gaming setup
    Receiver/amp: Yamaha RX-V665
    Computer: Lenovo g50 (soon to be upgraded to a Dell Precision 690 which is far from stock!!)
    Interconnects: Amazon basics HDMI, Acoustic Research HDMI, Monoprice speaker cables
    Speakers: Boston Acoustics CR75s

    Random equipment on standby:
    Onkyo TX-v940, JBL woofers and tweeters, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, a whole bunch of 1”-3” full range drivers, Infinity Crescendo 3007s (on sale), Polk LSi25s
    txcoastal1 wrote: »

    You don't tell her you read the manual, and you tell her you know what the problem is, and you fixed it, because that what men do, fix things
  • DSkipDSkip Posts: 14,672
    Take it back for a refund. So many of these projects never materialize because there is usually something much better within reach once you invest and the 'something' will retain its value better. This piece will be a complete money pit with no return on investment. You want a vintage piece to invest in? Get a baby Marantz. Otherwise, it'll be too costly to play for you and you'll literally lose all that money. You're not in a position to do things like that yet.

    My father in law gifted me a Sansui 1000a and a Pioneer SX-34. The Sansui is the more desirable piece and I sold it and kept the SX-34. I wanted to restore the Sansui but if you do a google search and see the innards, you'll understand why I got out quick. Refurbed units go for almost a grand now. There's a labor of love in those units as they might be the most overwhelming builds I've ever seen.
    audiothesis.com/

    Speakers: Harbeth: 30.2, SHL5+; Usher: Be-10, T-515; Rosso Fiorentino: Elba, Pienza, Certaldo, Fiesole, Volterra; Polk: T50, Signature S15, RTA 15tl, RTi12; Sonner Audio Allegro Unum, Legato Unum, Legato Semis, Legato Duo; Emerald Physics CS-2.8; Klipsch KLF-20
    Preamps: Shuguang S200MK, Dayens Ampino, Parasound P5
    Amps: Shuguang S845MK, Dayens Ampino Monoblocks, Parasound A23
    Integrateds: Triode Corporation TRV-88SER, MastersounD: BoX, Dueventi, Compact 845, Evolution 845; North Star Design Blue Diamond
    Sources: AURALiC Aries, Denon HEOS Link, North Star Design: Magnifico, Supremo, Incanto, Intenso, Venti
    Cabling: Wireworld
    TV: Sony XBR-75X940C
  • mlistens03mlistens03 Posts: 1,407
    edited July 16
    DSkip wrote: »
    Take it back for a refund. So many of these projects never materialize because there is usually something much better within reach once you invest and the 'something' will retain its value better. This piece will be a complete money pit with no return on investment. You want a vintage piece to invest in? Get a baby Marantz. Otherwise, it'll be too costly to play for you and you'll literally lose all that money. You're not in a position to do things like that yet.

    My father in law gifted me a Sansui 1000a and a Pioneer SX-34. The Sansui is the more desirable piece and I sold it and kept the SX-34. I wanted to restore the Sansui but if you do a google search and see the innards, you'll understand why I got out quick. Refurbed units go for almost a grand now. There's a labor of love in those units as they might be the most overwhelming builds I've ever seen.

    This is a very good point. Thanks to all of you guys for your help in this matter, I’m going to take your advice on this one.
    Ya know, when I don’t take your advice, things usually go worse than when I do. I think I’m starting to see a bit of a pattern. :wink: And to think, before I came here I thought I was the most knowledgeable audiophile in the world. :lol:
    Thanks guys, you really have helped me learn a lot, and I truly am grateful.
    Micah
    P.S. I just realized this looks a bit like a goodbye, so I’m just gonna clear any possible confusion, it’s not. :lol:
    2 channel
    Speakers: Mission 770 Freedoms
    Integrated amp: Technics SU-v75 and matching tuner
    CDP: Technics SL-PC20
    Cables: Monoprice, Monster, Acoustic Research, and a few generic ones
    TT: Technics SL-3200, direct drive
    Cartridge: Shure M97xE

    Pc gaming setup
    Receiver/amp: Yamaha RX-V665
    Computer: Lenovo g50 (soon to be upgraded to a Dell Precision 690 which is far from stock!!)
    Interconnects: Amazon basics HDMI, Acoustic Research HDMI, Monoprice speaker cables
    Speakers: Boston Acoustics CR75s

    Random equipment on standby:
    Onkyo TX-v940, JBL woofers and tweeters, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, a whole bunch of 1”-3” full range drivers, Infinity Crescendo 3007s (on sale), Polk LSi25s
    txcoastal1 wrote: »

    You don't tell her you read the manual, and you tell her you know what the problem is, and you fixed it, because that what men do, fix things
  • mlistens03mlistens03 Posts: 1,407
    mgjfdjy2gb5u.jpg
    Ok, so I know what I said. “I’m gonna get a vintage Marantz or Yamaha.” But, my friend start the flea market recently decided to only do store credit, so this was the best he had. And so far, I actually really like it! Massive improvement over my Technics, from what I’ve read (and heard) it has a nice tuner, nice phono stage, and just sounds nice overall. Has “Main” speakers and “remote” speakers, and a headphone jack.
    And, big thing, it is gorgeous. Looks brand new, all lights work, all controls are smooth, etc.
    It has two thumps upon start up, but I believe that to be pretty normal of amplifiers of the era.
    I’m gonna clean the controls tomorrow or Tuesday. They don’t make noise, but might as well get it done.
    This is still a temporary piece, but this temporary one might last a lot longer than my Technics.
    2 channel
    Speakers: Mission 770 Freedoms
    Integrated amp: Technics SU-v75 and matching tuner
    CDP: Technics SL-PC20
    Cables: Monoprice, Monster, Acoustic Research, and a few generic ones
    TT: Technics SL-3200, direct drive
    Cartridge: Shure M97xE

    Pc gaming setup
    Receiver/amp: Yamaha RX-V665
    Computer: Lenovo g50 (soon to be upgraded to a Dell Precision 690 which is far from stock!!)
    Interconnects: Amazon basics HDMI, Acoustic Research HDMI, Monoprice speaker cables
    Speakers: Boston Acoustics CR75s

    Random equipment on standby:
    Onkyo TX-v940, JBL woofers and tweeters, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, a whole bunch of 1”-3” full range drivers, Infinity Crescendo 3007s (on sale), Polk LSi25s
    txcoastal1 wrote: »

    You don't tell her you read the manual, and you tell her you know what the problem is, and you fixed it, because that what men do, fix things
  • ClipdatClipdat Posts: 4,243
    edited July 22
    Cool, a lafayette LR-1100!

    lafayette-lr-1100.jpg

    I'd definitely be interested in some under the hood shots if/when you get it opened up!
    Got Dayens?
  • mlistens03mlistens03 Posts: 1,407
    Clipdat wrote: »
    Cool, a lafayette LR-1100!

    lafayette-lr-1100.jpg

    I'd definitely be interested in some under the hood shots if/when you get it opened up!

    I’ll get them later for you guys. Probably Tuesday, because I have family here now, and they leave on Tuesday.
    2 channel
    Speakers: Mission 770 Freedoms
    Integrated amp: Technics SU-v75 and matching tuner
    CDP: Technics SL-PC20
    Cables: Monoprice, Monster, Acoustic Research, and a few generic ones
    TT: Technics SL-3200, direct drive
    Cartridge: Shure M97xE

    Pc gaming setup
    Receiver/amp: Yamaha RX-V665
    Computer: Lenovo g50 (soon to be upgraded to a Dell Precision 690 which is far from stock!!)
    Interconnects: Amazon basics HDMI, Acoustic Research HDMI, Monoprice speaker cables
    Speakers: Boston Acoustics CR75s

    Random equipment on standby:
    Onkyo TX-v940, JBL woofers and tweeters, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, a whole bunch of 1”-3” full range drivers, Infinity Crescendo 3007s (on sale), Polk LSi25s
    txcoastal1 wrote: »

    You don't tell her you read the manual, and you tell her you know what the problem is, and you fixed it, because that what men do, fix things
  • mhardy6647mhardy6647 Posts: 18,417
    39130086560_35837b723a_b.jpgLRE LR1100 1976 by Mark Hardy, on Flickr

    Not one seen every day.
    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

    "Some amps run on self bias, some amps run on fixed bias. But his amps run on confirmation bias." -- seen on audioasylum

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
  • ClipdatClipdat Posts: 4,243
    22wpc, interesting. Micah, does it rock?
    Got Dayens?
  • mlistens03mlistens03 Posts: 1,407
    Clipdat wrote: »
    22wpc, interesting. Micah, does it rock?

    In the little bit of listening I’ve done, YES. Easily the best sound out of the Missions I’ve heard ever. Just blows my Technics out of the water.
    And it is practically new. Not a scratch, smudge, or stain on the thing. The wood case is perfect, the face is perfect, the glass is perfect. All the lights work, none of the switches are noisy, truely flawless. This is my first piece I’ve owned that actually looks brand new.
    2 channel
    Speakers: Mission 770 Freedoms
    Integrated amp: Technics SU-v75 and matching tuner
    CDP: Technics SL-PC20
    Cables: Monoprice, Monster, Acoustic Research, and a few generic ones
    TT: Technics SL-3200, direct drive
    Cartridge: Shure M97xE

    Pc gaming setup
    Receiver/amp: Yamaha RX-V665
    Computer: Lenovo g50 (soon to be upgraded to a Dell Precision 690 which is far from stock!!)
    Interconnects: Amazon basics HDMI, Acoustic Research HDMI, Monoprice speaker cables
    Speakers: Boston Acoustics CR75s

    Random equipment on standby:
    Onkyo TX-v940, JBL woofers and tweeters, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, a whole bunch of 1”-3” full range drivers, Infinity Crescendo 3007s (on sale), Polk LSi25s
    txcoastal1 wrote: »

    You don't tell her you read the manual, and you tell her you know what the problem is, and you fixed it, because that what men do, fix things
  • mhardy6647mhardy6647 Posts: 18,417
    edited July 23
    That line of Lafayette Radio Electronics (LRE) equipment was really nicely made -- way beyond the moderately junky (and vastly overpriced) hifi hardware, by and large, that R/S was selling at the same time. Not sure who the OEM was (were) for the Lafayette stuff.

    LRE was more of a regional 'brand' (mostly in the northeast), though, and they were southbound (very much so, sadly) by the time that line of receivers came along (mid 1970s). They were gone by 1980 or so.

    The late, great George Grand (of the Jersey Grands) - as old-timers will recall - was an LRE expert, too bad we don't have his input now :(

    16349049525_e26da7b551_b.jpgLRE Catalog 760 cover 1976 by Mark Hardy, on Flickr

    FWIW, I have a pretty good collection of LRE catalogs and I am slowly and randomly :p putting together a collection of scans of interesting items from them. The 'collection' (such as it is) is currently on Flikr @ https://flic.kr/s/aHsk3ZHULM


    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

    "Some amps run on self bias, some amps run on fixed bias. But his amps run on confirmation bias." -- seen on audioasylum

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
  • mlistens03mlistens03 Posts: 1,407
    mhardy6647 wrote: »
    That line of Lafayette Radio Electronics (LRE) equipment was really nicely made -- way beyond the moderately junky (and vastly overpriced) hifi hardware, by and large, that R/S was selling at the same time. Not sure who the OEM was (were) for the Lafayette stuff.

    LRE was more of a regional 'brand' (mostly in the northeast), though, and they were southbound (very much so, sadly) by the time that line of receivers came along (mid 1970s). They were gone by 1980 or so.

    The late, great George Grand (of the Jersey Grands) - as old-timers will recall - was an LRE expert, too bad we don't have his input now :(

    From what my friend at the flea market said, this specific model might be a Pioneer. That was what he and the original owner agreed on, anyway.
    2 channel
    Speakers: Mission 770 Freedoms
    Integrated amp: Technics SU-v75 and matching tuner
    CDP: Technics SL-PC20
    Cables: Monoprice, Monster, Acoustic Research, and a few generic ones
    TT: Technics SL-3200, direct drive
    Cartridge: Shure M97xE

    Pc gaming setup
    Receiver/amp: Yamaha RX-V665
    Computer: Lenovo g50 (soon to be upgraded to a Dell Precision 690 which is far from stock!!)
    Interconnects: Amazon basics HDMI, Acoustic Research HDMI, Monoprice speaker cables
    Speakers: Boston Acoustics CR75s

    Random equipment on standby:
    Onkyo TX-v940, JBL woofers and tweeters, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, a whole bunch of 1”-3” full range drivers, Infinity Crescendo 3007s (on sale), Polk LSi25s
    txcoastal1 wrote: »

    You don't tell her you read the manual, and you tell her you know what the problem is, and you fixed it, because that what men do, fix things
  • mhardy6647mhardy6647 Posts: 18,417
    It looks like a Pioneer. Imitation is the sincerest form of flattery. :)
    It is not impossible that it was Pioneer OEM, but I very much doubt it.
    It will probably be pretty obvious whether it is or isn't a Pioneer product when one pops the top.

    Post photos of the innards if/when you can, please.


    Internet chatter suggest OEMs from "Planet Research" to Luxman. Some LRE components in the tube era were made by Sansui and TRIO (which was the name by which Kenwood was known, then, in most of the world). Near the end, the LRE receivers were made by the same OEM who made the sought-after Setton branded hardware.

    some chatter on the topic from AK:
    http://audiokarma.org/forums/index.php?threads/who-made-the-lafayette-line-of-receivers.814627/#post-11427428
    http://audiokarma.org/forums/index.php?threads/lafayette-4-channel.342775/#post-4542977
    http://www.audiokarma.org/forums/index.php?threads/lafayette-lr-9090-impressions.47146/
    http://audiokarma.org/forums/index.php?threads/lafayette-lr-4000.29814/#post-420436
    http://audiokarma.org/forums/index.php?threads/claricon-27901.568546/
    http://audiokarma.org/forums/index.php?threads/lafayette-lr-5555.503093/
    http://audiokarma.org/forums/index.php?threads/lafayette-lr-9090-series-setton-rs-660-series-repairs-upgrades.482152/
    http://audiokarma.org/forums/index.php?threads/why-so-few-lafayette-fans.155513/#post-1738124

    ... and elsewhere:
    https://people.ohio.edu/postr/bapix/LafArt_60_3.htm
    http://www.w5txr.net/Lafayette-Electronics-History.html

    :)


    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

    "Some amps run on self bias, some amps run on fixed bias. But his amps run on confirmation bias." -- seen on audioasylum

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
  • mlistens03mlistens03 Posts: 1,407
    As requested, pics:
    kd2g2hzafqgz.jpeg
    9u6cgw0h48q4.jpeg
    lle1dq6he0bp.jpeg
    mqz422nhf252.jpeg
    2 channel
    Speakers: Mission 770 Freedoms
    Integrated amp: Technics SU-v75 and matching tuner
    CDP: Technics SL-PC20
    Cables: Monoprice, Monster, Acoustic Research, and a few generic ones
    TT: Technics SL-3200, direct drive
    Cartridge: Shure M97xE

    Pc gaming setup
    Receiver/amp: Yamaha RX-V665
    Computer: Lenovo g50 (soon to be upgraded to a Dell Precision 690 which is far from stock!!)
    Interconnects: Amazon basics HDMI, Acoustic Research HDMI, Monoprice speaker cables
    Speakers: Boston Acoustics CR75s

    Random equipment on standby:
    Onkyo TX-v940, JBL woofers and tweeters, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, a whole bunch of 1”-3” full range drivers, Infinity Crescendo 3007s (on sale), Polk LSi25s
    txcoastal1 wrote: »

    You don't tell her you read the manual, and you tell her you know what the problem is, and you fixed it, because that what men do, fix things
  • mhardy6647mhardy6647 Posts: 18,417
    edited July 24
    Thanks for taking and posting those.
    4 FM gangs, 3 AM. not bad :)

    PS Certainly doesn't look like mid-1970s Pioneer inside, which was the other reason I asked. "Planet Research" is a reasonable bet for the OEM.

    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

    "Some amps run on self bias, some amps run on fixed bias. But his amps run on confirmation bias." -- seen on audioasylum

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
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