LSi amp worth fixing?

mlistens03mlistens03 Posts: 397
edited December 2017 in Electronics
I got a pair of LSi25s yesterday and one of the amps are broken. I can send it to someone to get it fixed, or I could send it to Polk, but I don’t know if it would be worth it. I don’t know how much it is to send it to Polk, but it is almost $200 shipped to send it to the other 3rd party person. I already have $50 into these speakers, is it worth another’s $200 to get it fixed?

Thanks,
Micah
2 channel
Speakers: Polk LSi25s, Mission 770 Freedoms
Receiver: Yamaha RX-v665
Amplifier: Crown XLi800
CD/DVD player: Sony DVP-NC85H
Subwoofers: Velodyne CHT-10, right built in LSi sub
Random center channel that just happens to be where it is: Boston Acoustics CRC
Cables: Monoprice, Monster, Acoustic Research

Pc gaming setup
Speakers: Boston Acoustics CR75s
Receiver: Rear channels on Yamaha RX-v665
PC: Lenovo g50
Cables: Monoprice, some sort of car audio RCA cable, Acoustic Research RCA extension

Random equipment on standby:
Onkyo TX-v940, JBL j50, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, Infinity Crescendo 3007s (on sale)
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
Post edited by mlistens03 on

Comments

  • tonybtonyb Posts: 28,701
    Only you can be the judge if it's worth fixing. Before sending it off though, I'd take a look at the crossovers too, make sure either one isn't blown. If the crossovers are toast, and the built in amps are toast, then to me, no...they aren't worth fixing and you could probably get your 50 back by parting them out.

    I'd also make sure if you do fix them, you have something proper to power them with like a good external amp as they are a 4 ohm speaker.
    HT SYSTEM-
    Pioneer elite vhx 21
    Sony BRP
    Tad bookies
    Polk 500 surrounds
    Polk s35 center
    SVS SB-2000
    Sonos

    Music-

    Joule la-100 pre
    B&k 1403 amp
    Cary xciter dac
    Cullen modded Sonos
    ERA D5 bookies

    Cables-
    Acoustic zen Satori speaker cables
    Analysis plus crystal oval ic's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable
  • Yeah, the crossovers are fine, they definitely play perfectly, it’s just this sub that is the problem. I’m also looking into something that will give them enough power, but for right now I’ve got a Yamaha rx-v665. Definitely will replace it in the future though.
    Thanks!
    2 channel
    Speakers: Polk LSi25s, Mission 770 Freedoms
    Receiver: Yamaha RX-v665
    Amplifier: Crown XLi800
    CD/DVD player: Sony DVP-NC85H
    Subwoofers: Velodyne CHT-10, right built in LSi sub
    Random center channel that just happens to be where it is: Boston Acoustics CRC
    Cables: Monoprice, Monster, Acoustic Research

    Pc gaming setup
    Speakers: Boston Acoustics CR75s
    Receiver: Rear channels on Yamaha RX-v665
    PC: Lenovo g50
    Cables: Monoprice, some sort of car audio RCA cable, Acoustic Research RCA extension

    Random equipment on standby:
    Onkyo TX-v940, JBL j50, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, Infinity Crescendo 3007s (on sale)
    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
  • THis sub isn’t something that I have to fix right? Cant I just unplug the sub and not use it? Or is that bad for the speaker in some way?
    2 channel
    Speakers: Polk LSi25s, Mission 770 Freedoms
    Receiver: Yamaha RX-v665
    Amplifier: Crown XLi800
    CD/DVD player: Sony DVP-NC85H
    Subwoofers: Velodyne CHT-10, right built in LSi sub
    Random center channel that just happens to be where it is: Boston Acoustics CRC
    Cables: Monoprice, Monster, Acoustic Research

    Pc gaming setup
    Speakers: Boston Acoustics CR75s
    Receiver: Rear channels on Yamaha RX-v665
    PC: Lenovo g50
    Cables: Monoprice, some sort of car audio RCA cable, Acoustic Research RCA extension

    Random equipment on standby:
    Onkyo TX-v940, JBL j50, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, Infinity Crescendo 3007s (on sale)
    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
  • tonybtonyb Posts: 28,701
    mlistens03 wrote: »
    THis sub isn’t something that I have to fix right? Cant I just unplug the sub and not use it? Or is that bad for the speaker in some way?

    It will sound off, as the plate amp in the speaker powers the lower woofer for those bass notes below midrange. You can unplug both, and use them, but you might want to add a subwoofer into the mix.

    2nd....you can't use them with that receiver you have or you will smoke the crossovers.

    Polk might be able to guide you as to what plate amp you can buy to replace the bad one. Maybe parts express might have a replacement but you have to get some guidance as to which would work for those speakers.
    HT SYSTEM-
    Pioneer elite vhx 21
    Sony BRP
    Tad bookies
    Polk 500 surrounds
    Polk s35 center
    SVS SB-2000
    Sonos

    Music-

    Joule la-100 pre
    B&k 1403 amp
    Cary xciter dac
    Cullen modded Sonos
    ERA D5 bookies

    Cables-
    Acoustic zen Satori speaker cables
    Analysis plus crystal oval ic's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable
  • tonybtonyb Posts: 28,701
    At best, your looking at spending some coin to replace/repair the amp on one speaker. Plus the cost of an amplifier which used, your looking at 3-500 bucks more. If you don't want to invest that much, sell them as they are now and move on.
    HT SYSTEM-
    Pioneer elite vhx 21
    Sony BRP
    Tad bookies
    Polk 500 surrounds
    Polk s35 center
    SVS SB-2000
    Sonos

    Music-

    Joule la-100 pre
    B&k 1403 amp
    Cary xciter dac
    Cullen modded Sonos
    ERA D5 bookies

    Cables-
    Acoustic zen Satori speaker cables
    Analysis plus crystal oval ic's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable
  • Airplay355Airplay355 Posts: 4,135
    I think Polk fixes the amps for pretty cheap but there’s no getting around expensive shipping. Those amps aren’t exactly made of balsa wood.
  • tonybtonyb Posts: 28,701
    Airplay355 wrote: »
    Those amps aren’t exactly made of balsa wood.

    Considering their longevity, one might think otherwise. :)
    HT SYSTEM-
    Pioneer elite vhx 21
    Sony BRP
    Tad bookies
    Polk 500 surrounds
    Polk s35 center
    SVS SB-2000
    Sonos

    Music-

    Joule la-100 pre
    B&k 1403 amp
    Cary xciter dac
    Cullen modded Sonos
    ERA D5 bookies

    Cables-
    Acoustic zen Satori speaker cables
    Analysis plus crystal oval ic's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable
  • mlistens03mlistens03 Posts: 397
    edited December 2017
    I already had a 10” sub that I was using before which is four ohms and I think is 150 watts, would that work for powering the sub? I would just have to run a cable from my Velodyne amp to the 10”, right?

    Would my onkyo tx-v940 amp work? It’s only a two channel, but it pushes four ohms. But would you guys say this amp is powerful enough for these speakers? I think it has a total of 100 watts per channel into 8 ohms, however I don’t know how accurate that number is, and how much it would be into 4 ohms...

    Thanks,
    Micah
    2 channel
    Speakers: Polk LSi25s, Mission 770 Freedoms
    Receiver: Yamaha RX-v665
    Amplifier: Crown XLi800
    CD/DVD player: Sony DVP-NC85H
    Subwoofers: Velodyne CHT-10, right built in LSi sub
    Random center channel that just happens to be where it is: Boston Acoustics CRC
    Cables: Monoprice, Monster, Acoustic Research

    Pc gaming setup
    Speakers: Boston Acoustics CR75s
    Receiver: Rear channels on Yamaha RX-v665
    PC: Lenovo g50
    Cables: Monoprice, some sort of car audio RCA cable, Acoustic Research RCA extension

    Random equipment on standby:
    Onkyo TX-v940, JBL j50, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, Infinity Crescendo 3007s (on sale)
    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
  • I should mention, I already have a pair of infinity crescendo 3007s, are these towers better speakers? Because if not I don’t think it would be worth it to spend several hundred bucks to get these speakers into working condition if they aren’t as good as the ones I already have
    2 channel
    Speakers: Polk LSi25s, Mission 770 Freedoms
    Receiver: Yamaha RX-v665
    Amplifier: Crown XLi800
    CD/DVD player: Sony DVP-NC85H
    Subwoofers: Velodyne CHT-10, right built in LSi sub
    Random center channel that just happens to be where it is: Boston Acoustics CRC
    Cables: Monoprice, Monster, Acoustic Research

    Pc gaming setup
    Speakers: Boston Acoustics CR75s
    Receiver: Rear channels on Yamaha RX-v665
    PC: Lenovo g50
    Cables: Monoprice, some sort of car audio RCA cable, Acoustic Research RCA extension

    Random equipment on standby:
    Onkyo TX-v940, JBL j50, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, Infinity Crescendo 3007s (on sale)
    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
  • Tony, thanks for your help and feedback, I wasn’t concerned about the crossovers, just the amp overheating. I would like to ask however, would this setup work at lower volume so for only about an hour just so I can compare it to my speakers I already own? Preferably without damage to the amp or speakers
    2 channel
    Speakers: Polk LSi25s, Mission 770 Freedoms
    Receiver: Yamaha RX-v665
    Amplifier: Crown XLi800
    CD/DVD player: Sony DVP-NC85H
    Subwoofers: Velodyne CHT-10, right built in LSi sub
    Random center channel that just happens to be where it is: Boston Acoustics CRC
    Cables: Monoprice, Monster, Acoustic Research

    Pc gaming setup
    Speakers: Boston Acoustics CR75s
    Receiver: Rear channels on Yamaha RX-v665
    PC: Lenovo g50
    Cables: Monoprice, some sort of car audio RCA cable, Acoustic Research RCA extension

    Random equipment on standby:
    Onkyo TX-v940, JBL j50, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, Infinity Crescendo 3007s (on sale)
    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
  • tonybtonyb Posts: 28,701
    mlistens03 wrote: »
    Tony, thanks for your help and feedback, I wasn’t concerned about the crossovers, just the amp overheating. I would like to ask however, would this setup work at lower volume so for only about an hour just so I can compare it to my speakers I already own? Preferably without damage to the amp or speakers

    At low volumes, that would be a hard comparison to make. LSI's need current to wake them up, something your receiver doesn't have at any volume.

    I can tell you, if your used to the Infinity sound, the LSI's are a complete different sound. They have a more laid back presentation, but with more detail than the Infinitys. If your looking for a party speaker, these aren't them.
    HT SYSTEM-
    Pioneer elite vhx 21
    Sony BRP
    Tad bookies
    Polk 500 surrounds
    Polk s35 center
    SVS SB-2000
    Sonos

    Music-

    Joule la-100 pre
    B&k 1403 amp
    Cary xciter dac
    Cullen modded Sonos
    ERA D5 bookies

    Cables-
    Acoustic zen Satori speaker cables
    Analysis plus crystal oval ic's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable
  • I can tell you, if your used to the Infinity sound, the LSI's are a complete different sound. They have a more laid back presentation, but with more detail than the Infinitys. If your looking for a party speaker, these aren't them.[/quote]

    Yeah, me and my dad listened to them yesterday and compared them, and the infinities sounded better to him, but I think I like the sound of the Polks more. So it is looking like the infinities are going to go to the living room to replace the speakers that are down there already
    2 channel
    Speakers: Polk LSi25s, Mission 770 Freedoms
    Receiver: Yamaha RX-v665
    Amplifier: Crown XLi800
    CD/DVD player: Sony DVP-NC85H
    Subwoofers: Velodyne CHT-10, right built in LSi sub
    Random center channel that just happens to be where it is: Boston Acoustics CRC
    Cables: Monoprice, Monster, Acoustic Research

    Pc gaming setup
    Speakers: Boston Acoustics CR75s
    Receiver: Rear channels on Yamaha RX-v665
    PC: Lenovo g50
    Cables: Monoprice, some sort of car audio RCA cable, Acoustic Research RCA extension

    Random equipment on standby:
    Onkyo TX-v940, JBL j50, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, Infinity Crescendo 3007s (on sale)
    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
  • Sorry the quote thing did not work
    2 channel
    Speakers: Polk LSi25s, Mission 770 Freedoms
    Receiver: Yamaha RX-v665
    Amplifier: Crown XLi800
    CD/DVD player: Sony DVP-NC85H
    Subwoofers: Velodyne CHT-10, right built in LSi sub
    Random center channel that just happens to be where it is: Boston Acoustics CRC
    Cables: Monoprice, Monster, Acoustic Research

    Pc gaming setup
    Speakers: Boston Acoustics CR75s
    Receiver: Rear channels on Yamaha RX-v665
    PC: Lenovo g50
    Cables: Monoprice, some sort of car audio RCA cable, Acoustic Research RCA extension

    Random equipment on standby:
    Onkyo TX-v940, JBL j50, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, Infinity Crescendo 3007s (on sale)
    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
  • anonymouseanonymouse Posts: 2,477
    If it were me, I'd repair/replace that amp. If you were near me and did not want to invest any more, I'd happily buy them off you.
  • I’m definitely going to, but my four ohm amp literally bit the dust yesterday, so I’m going to wire it so that I can use my old subs amp for now so that I can get a 4 ohm amp
    2 channel
    Speakers: Polk LSi25s, Mission 770 Freedoms
    Receiver: Yamaha RX-v665
    Amplifier: Crown XLi800
    CD/DVD player: Sony DVP-NC85H
    Subwoofers: Velodyne CHT-10, right built in LSi sub
    Random center channel that just happens to be where it is: Boston Acoustics CRC
    Cables: Monoprice, Monster, Acoustic Research

    Pc gaming setup
    Speakers: Boston Acoustics CR75s
    Receiver: Rear channels on Yamaha RX-v665
    PC: Lenovo g50
    Cables: Monoprice, some sort of car audio RCA cable, Acoustic Research RCA extension

    Random equipment on standby:
    Onkyo TX-v940, JBL j50, single Klipsch KG .5, Yamaha guitar amplifier, Peavey Rage 158 guitar amplifier, Kicker comp 12” subwoofer, single Bose 802 series II, Infinity Crescendo 3007s (on sale)
    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
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