For anyone who might be interested: Nelson Pass-designed ACA amplifier kit "back in stock" :)

13

Comments

  • mhardy6647
    mhardy6647 Posts: 33,791
    BlueFox wrote: »
    mhardy6647 wrote: »
    mhardy6647 wrote: »
    I am using these with the ACA, in case that wasn't obvious.

    24051079897_d03eddae1b_h.jpgDSC_9984 (3) by Mark Hardy, on Flickr

    If I had a nickel for everytime I saw that pic I'd be a gazillionaire... B)

    If didn't have all that junk, maybe I would be too.


    Are you calling my Bryston DAC junk? :)

    Did you ever use it?

    ahem, sorry :(

    I use it daily, that's why it is sitting there.
    Everything else. Everything else is junk.
    Well - except the Amp Camp Amp @ALL212 built.
    Oh, and the Bottlehead Reduction of @mrbiron which is still being held hostage.

    And anything else I got from you guys here! :)
  • ALL212
    ALL212 Posts: 1,577
    Anyone have a finished V2 of the ACA? Board layout looks different.

    I know you'll all be shocked but I've built the Frugal Horns (a tad harsh with the cones I chose and I don't remember which cones I chose). I've built both the Bottlehead S.E.X (V2) and Stereomour (V1).

    The S.E.X can do both headphones and speakers (although very low power, 2W), sounds great but box is crowded - doable - but not a lot of room to play with. Get the impedance switch's with it and you can match it to your cans or speakers.
    cl3v3t1bqtp4.jpg


    Stereomour is more expensive but there's room under the hood. Also sounds great and has a bit more power (3.5w). No headphone.
    xolg1q16s4cw.jpg

    Either of them can become your life long friend with the right speakers.
    Aaron
    Enabler Extraordinaire
  • Jim Shearer
    Jim Shearer Posts: 369
    mhardy6647 wrote: »
    Is that a Sony Slant deck? 366?

    TC-377
    Dump find. Works well (except the counter belt needs to be replaced)
    Decent sounding basic mechanical transport, single motor, three-head deck. Good for auditioning found tapes. :)

    16102128209_95e707b923_h.jpgSony TC-377 by Mark Hardy, on Flickr

    Hey! I had one of those until about 2 years ago. Must have bought it in the late 1970's (?). Used it so much that the tape guides had to rotated periodically due to wear, but the heads seemed to hold up quite well. Finally tossed it out when the motor failed.

    Cheers, Jim
    A day without music is like a day without food.
  • verb
    verb Posts: 10,176
    Does Polk have any offerings that would pair nicely with a lower powered (Bottlehead Sex, et, al) amp?
    Basement: Polk SDA SRS 1.2tl's, Cary SLP-05 Pre with ultimate upgrade,McIntosh MCD301 CD/SACD player, Northstar Designs Excelsio DAC, Cambridge 851N streamer, McIntosh MC300 Amp, Silnote Morpheus Ref2, Series2 Digital Cables, Silnote Morpheus Ref2 Series2 XLR's, Furman 15PFi Power Conditioner, Pangea Power Cables, MIT Shotgun S3 IC's, MIT Shotgun S1 Bi-Wire speaker cables
    Office: PC, EAR Acute CD Player, EAR 834L Pre, Northstar Designs Intenso DAC, Antique Sound Labs AV8 Monoblocks, Denon UDR-F10 Cassette, Acoustic Technologies Classic FR Speakers, SVS SB12 Plus sub, MIT AVt2 speaker cables, IFI Purifier2, AQ Cinnamon USB cable, Groneberg Quatro Reference IC's
    Spare Room: Dayens Ampino Integrated Amp, Tjoeb 99 tube CD player (modified Marantz CD-38), Analysis Plus Oval 9's, Zu Jumpers, AudioEngine B1 Streamer, Klipsch RB-61 v2, SVS PB1000 sub, Blue Jeans RCA IC's, Shunyata Hydra 8 Power Conditioner
    Living Room: Peachtree Nova Integrated, Cambridge CXN v2 Streamer, Rotel RCD-1072 CD player, Furman 15PFi Power Conditioner, Polk RT265 In Wall Speakers, Polk DSW Pro 660wi sub
    Garage #1: Cambridge Audio 640A Integrated Amp, Project Box-E BT Streamer, Polk Tsi200 Bookies, Douglas Speaker Cables, Shunyata Power Conditioner
    Garage #2: Cambridge Audio EVO150 Integrated Amplifier, Polk L200's, Analysis Plus Silver Oval 2 Speaker Cables, IC's TBD.
  • mhardy6647
    mhardy6647 Posts: 33,791
    verb wrote: »
    Does Polk have any offerings that would pair nicely with a lower powered (Bottlehead Sex, et, al) amp?

    A good question! :)

    No not really. The Monitor Series Model 9A was pretty sensitive and works pretty well with low-powered vacuum tube amplifiers; I don't think I've ever tried them with fleapower, though.

    It is a testable hypothesis :)
  • verb
    verb Posts: 10,176
    May the experiments begin! Just arrived today. Bottlehead SEX, circa 2007. Jeez you guys got me going down yet another rabbit hole! :smile:
    eqkgt9qyzpbf.jpg
    Basement: Polk SDA SRS 1.2tl's, Cary SLP-05 Pre with ultimate upgrade,McIntosh MCD301 CD/SACD player, Northstar Designs Excelsio DAC, Cambridge 851N streamer, McIntosh MC300 Amp, Silnote Morpheus Ref2, Series2 Digital Cables, Silnote Morpheus Ref2 Series2 XLR's, Furman 15PFi Power Conditioner, Pangea Power Cables, MIT Shotgun S3 IC's, MIT Shotgun S1 Bi-Wire speaker cables
    Office: PC, EAR Acute CD Player, EAR 834L Pre, Northstar Designs Intenso DAC, Antique Sound Labs AV8 Monoblocks, Denon UDR-F10 Cassette, Acoustic Technologies Classic FR Speakers, SVS SB12 Plus sub, MIT AVt2 speaker cables, IFI Purifier2, AQ Cinnamon USB cable, Groneberg Quatro Reference IC's
    Spare Room: Dayens Ampino Integrated Amp, Tjoeb 99 tube CD player (modified Marantz CD-38), Analysis Plus Oval 9's, Zu Jumpers, AudioEngine B1 Streamer, Klipsch RB-61 v2, SVS PB1000 sub, Blue Jeans RCA IC's, Shunyata Hydra 8 Power Conditioner
    Living Room: Peachtree Nova Integrated, Cambridge CXN v2 Streamer, Rotel RCD-1072 CD player, Furman 15PFi Power Conditioner, Polk RT265 In Wall Speakers, Polk DSW Pro 660wi sub
    Garage #1: Cambridge Audio 640A Integrated Amp, Project Box-E BT Streamer, Polk Tsi200 Bookies, Douglas Speaker Cables, Shunyata Power Conditioner
    Garage #2: Cambridge Audio EVO150 Integrated Amplifier, Polk L200's, Analysis Plus Silver Oval 2 Speaker Cables, IC's TBD.
  • mhardy6647
    mhardy6647 Posts: 33,791
    scha-weet.

    Too bad you don't live closer... :p

  • Viking64
    Viking64 Posts: 7,056
    verb wrote: »
    May the experiments begin! Just arrived today. Bottlehead SEX, circa 2007. Jeez you guys got me going down yet another rabbit hole! :smile:
    I'm going to be a nice guy and not respond to any of this. :p
  • verb
    verb Posts: 10,176
    Another softball for Jimmy! Looking at my new amp got me weak. Defenses down, defenses down! :smile:
    Basement: Polk SDA SRS 1.2tl's, Cary SLP-05 Pre with ultimate upgrade,McIntosh MCD301 CD/SACD player, Northstar Designs Excelsio DAC, Cambridge 851N streamer, McIntosh MC300 Amp, Silnote Morpheus Ref2, Series2 Digital Cables, Silnote Morpheus Ref2 Series2 XLR's, Furman 15PFi Power Conditioner, Pangea Power Cables, MIT Shotgun S3 IC's, MIT Shotgun S1 Bi-Wire speaker cables
    Office: PC, EAR Acute CD Player, EAR 834L Pre, Northstar Designs Intenso DAC, Antique Sound Labs AV8 Monoblocks, Denon UDR-F10 Cassette, Acoustic Technologies Classic FR Speakers, SVS SB12 Plus sub, MIT AVt2 speaker cables, IFI Purifier2, AQ Cinnamon USB cable, Groneberg Quatro Reference IC's
    Spare Room: Dayens Ampino Integrated Amp, Tjoeb 99 tube CD player (modified Marantz CD-38), Analysis Plus Oval 9's, Zu Jumpers, AudioEngine B1 Streamer, Klipsch RB-61 v2, SVS PB1000 sub, Blue Jeans RCA IC's, Shunyata Hydra 8 Power Conditioner
    Living Room: Peachtree Nova Integrated, Cambridge CXN v2 Streamer, Rotel RCD-1072 CD player, Furman 15PFi Power Conditioner, Polk RT265 In Wall Speakers, Polk DSW Pro 660wi sub
    Garage #1: Cambridge Audio 640A Integrated Amp, Project Box-E BT Streamer, Polk Tsi200 Bookies, Douglas Speaker Cables, Shunyata Power Conditioner
    Garage #2: Cambridge Audio EVO150 Integrated Amplifier, Polk L200's, Analysis Plus Silver Oval 2 Speaker Cables, IC's TBD.
  • msg
    msg Posts: 10,012
    You guys get the notification?
    Amp Camp Kits are back in stock. Err, for Pre-Order.
    https://diyaudiostore.com/collections/frontpage/products/amp-camp-amp-kit
    I disabled signatures.
  • mpitogo
    mpitogo Posts: 504
    Thanks, preorder is in for two kits. My first mono-blocks!!
    • Living Room Music-2.1 Polk Legend L800 | SVS SB1000Pro | McIntosh C70 | McIntosh MA5200 (Treble) | McIntosh MC452 (Bass) | Sublimeacoustic K231 Active xover | Denon DP-2500A | Denafrips Ares II | Marantz HD-CD1 | Belkin Soundform Connect | iPad Pro USB to DAC
    • Home Theater-9.7.6/15.1 (Atmos/Auro-3D) Polk LSiM707, LSiM706c, LSiM702 F/X [x6], Height LSiM703 [x6], HSU ULS-15Mk2x4, VTF-15HMk2x2, VTF-TN1 | Trinnov Altitude 16+4 (2024) | Rotel RB-1590 (L/R) | Appollon NC500 11ch | Martin Logan MP500x2 | Topping DX7s, E50 | AppleTV 4K | Zidoo Z9X | JVC RS2100 | 150” Elite Screen Acoustic Pro UHD
    • Game Room-5.1 Polk LSi25, LSiC, LSiF/X | Marantz SR7009 | AppleTV 4K | Sony UBP-X800 | Xbox One S | Sony PS2, PS3 | Nintendo Wii | Gaming PC | Sony 75" LCD
    • Master Bedroom Music-2.0 Totem Hawk | Marantz PM-10 | Marantz SA-10 | SONY PS-HX500
    • Office-2.1 B&W Formation Duo and Bass
    • Orphans Ascend Acoustics Sierra LX | DSW microPRO3000x2 | Rotel RA-1570 | Marantz AV8805A
    • Daughter's Bedroom 1-2.0 TBD Martin Logan Forte | Roku TV
    • Guest Room 2-2.0 Klipsch RP-600M | SMSL DO100 Pro 2 | Pass ACA v1.6 Monoblocks
    • Guest Room 3-3.0 Martin Logan Motion 40, 50XT | Onkyo TX-SR705 | Apple TV | Samsung 55" TV
    • Guest Room 4-2.0 QAcoustics 3030i | Sansui AU-6900 | Sansui FR-1080 | Fire TV
    • Maintenance: Pro-Ject VC-S Record Cleaning Machine
  • heiney9
    heiney9 Posts: 25,165
    Be fun to get a pair and run them as 20 wpc mono's.
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
  • mrbiron
    mrbiron Posts: 5,711
    Son of a!...must resist...
    Where’s the KABOOM?!?! There’s supposed to be an Earth shattering KABOOM!!!
  • verb
    verb Posts: 10,176
    Resistance is futile! :smile:
    oyjd7fe8qrdj.png
    Basement: Polk SDA SRS 1.2tl's, Cary SLP-05 Pre with ultimate upgrade,McIntosh MCD301 CD/SACD player, Northstar Designs Excelsio DAC, Cambridge 851N streamer, McIntosh MC300 Amp, Silnote Morpheus Ref2, Series2 Digital Cables, Silnote Morpheus Ref2 Series2 XLR's, Furman 15PFi Power Conditioner, Pangea Power Cables, MIT Shotgun S3 IC's, MIT Shotgun S1 Bi-Wire speaker cables
    Office: PC, EAR Acute CD Player, EAR 834L Pre, Northstar Designs Intenso DAC, Antique Sound Labs AV8 Monoblocks, Denon UDR-F10 Cassette, Acoustic Technologies Classic FR Speakers, SVS SB12 Plus sub, MIT AVt2 speaker cables, IFI Purifier2, AQ Cinnamon USB cable, Groneberg Quatro Reference IC's
    Spare Room: Dayens Ampino Integrated Amp, Tjoeb 99 tube CD player (modified Marantz CD-38), Analysis Plus Oval 9's, Zu Jumpers, AudioEngine B1 Streamer, Klipsch RB-61 v2, SVS PB1000 sub, Blue Jeans RCA IC's, Shunyata Hydra 8 Power Conditioner
    Living Room: Peachtree Nova Integrated, Cambridge CXN v2 Streamer, Rotel RCD-1072 CD player, Furman 15PFi Power Conditioner, Polk RT265 In Wall Speakers, Polk DSW Pro 660wi sub
    Garage #1: Cambridge Audio 640A Integrated Amp, Project Box-E BT Streamer, Polk Tsi200 Bookies, Douglas Speaker Cables, Shunyata Power Conditioner
    Garage #2: Cambridge Audio EVO150 Integrated Amplifier, Polk L200's, Analysis Plus Silver Oval 2 Speaker Cables, IC's TBD.
  • heiney9
    heiney9 Posts: 25,165
    I am resisting only because I don't have a pre-amp to pair with this. I want it just for the build experience, but it appears to sound very good to excellent as well.

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
  • Clipdat
    Clipdat Posts: 12,934
    edited May 2018
  • mpitogo
    mpitogo Posts: 504
    edited May 2018
    I’m doing it for the experience as well and want to know what class A sounds like.

    Past project: -BTW ignore those speakers, those are RadioShack Optimus, sacrificial set incase my amp project blows up a speaker...


    mthf43k5d6dc.jpeg

    • Living Room Music-2.1 Polk Legend L800 | SVS SB1000Pro | McIntosh C70 | McIntosh MA5200 (Treble) | McIntosh MC452 (Bass) | Sublimeacoustic K231 Active xover | Denon DP-2500A | Denafrips Ares II | Marantz HD-CD1 | Belkin Soundform Connect | iPad Pro USB to DAC
    • Home Theater-9.7.6/15.1 (Atmos/Auro-3D) Polk LSiM707, LSiM706c, LSiM702 F/X [x6], Height LSiM703 [x6], HSU ULS-15Mk2x4, VTF-15HMk2x2, VTF-TN1 | Trinnov Altitude 16+4 (2024) | Rotel RB-1590 (L/R) | Appollon NC500 11ch | Martin Logan MP500x2 | Topping DX7s, E50 | AppleTV 4K | Zidoo Z9X | JVC RS2100 | 150” Elite Screen Acoustic Pro UHD
    • Game Room-5.1 Polk LSi25, LSiC, LSiF/X | Marantz SR7009 | AppleTV 4K | Sony UBP-X800 | Xbox One S | Sony PS2, PS3 | Nintendo Wii | Gaming PC | Sony 75" LCD
    • Master Bedroom Music-2.0 Totem Hawk | Marantz PM-10 | Marantz SA-10 | SONY PS-HX500
    • Office-2.1 B&W Formation Duo and Bass
    • Orphans Ascend Acoustics Sierra LX | DSW microPRO3000x2 | Rotel RA-1570 | Marantz AV8805A
    • Daughter's Bedroom 1-2.0 TBD Martin Logan Forte | Roku TV
    • Guest Room 2-2.0 Klipsch RP-600M | SMSL DO100 Pro 2 | Pass ACA v1.6 Monoblocks
    • Guest Room 3-3.0 Martin Logan Motion 40, 50XT | Onkyo TX-SR705 | Apple TV | Samsung 55" TV
    • Guest Room 4-2.0 QAcoustics 3030i | Sansui AU-6900 | Sansui FR-1080 | Fire TV
    • Maintenance: Pro-Ject VC-S Record Cleaning Machine
  • mhardy6647
    mhardy6647 Posts: 33,791
    It is important (essential) to have cannon fodder speakers for test purposes -- especially with direct coupled solid state equipment. Don't ask me how I learned this. ;)
  • Tony M
    Tony M Posts: 11,151
    I learned the hard way too, but just from hooking up a yard sale receiver purchase to my RT3000P's.

    BAM! :s:(
    Most people just listen to music and watch movies. I EXPERIENCE them.
  • msg
    msg Posts: 10,012
    Ouch! :s:(
    I disabled signatures.
  • Tony M
    Tony M Posts: 11,151
    edited May 2018
    I'm lucky I still have good hearing although ringing started a year or more ago and it has nothing to do with that explosion years ago. I only blew one tweeter. That's all. :o

    Polk Audio made a TOUGH speaker system with those RT3000Ps. To take a direct short and only have one tweeter blow, that's impressive.

    I thought I blew every speaker in all 4 units. My wife jumped up and came into the room to see if I was alright what the heck just happened. It sounded like a truck backfired in the room. I almost soiled myself! :#
    Most people just listen to music and watch movies. I EXPERIENCE them.
  • mpitogo
    mpitogo Posts: 504
    Chassis from the kit came in.

    wa93kwiey1gy.jpeg
    • Living Room Music-2.1 Polk Legend L800 | SVS SB1000Pro | McIntosh C70 | McIntosh MA5200 (Treble) | McIntosh MC452 (Bass) | Sublimeacoustic K231 Active xover | Denon DP-2500A | Denafrips Ares II | Marantz HD-CD1 | Belkin Soundform Connect | iPad Pro USB to DAC
    • Home Theater-9.7.6/15.1 (Atmos/Auro-3D) Polk LSiM707, LSiM706c, LSiM702 F/X [x6], Height LSiM703 [x6], HSU ULS-15Mk2x4, VTF-15HMk2x2, VTF-TN1 | Trinnov Altitude 16+4 (2024) | Rotel RB-1590 (L/R) | Appollon NC500 11ch | Martin Logan MP500x2 | Topping DX7s, E50 | AppleTV 4K | Zidoo Z9X | JVC RS2100 | 150” Elite Screen Acoustic Pro UHD
    • Game Room-5.1 Polk LSi25, LSiC, LSiF/X | Marantz SR7009 | AppleTV 4K | Sony UBP-X800 | Xbox One S | Sony PS2, PS3 | Nintendo Wii | Gaming PC | Sony 75" LCD
    • Master Bedroom Music-2.0 Totem Hawk | Marantz PM-10 | Marantz SA-10 | SONY PS-HX500
    • Office-2.1 B&W Formation Duo and Bass
    • Orphans Ascend Acoustics Sierra LX | DSW microPRO3000x2 | Rotel RA-1570 | Marantz AV8805A
    • Daughter's Bedroom 1-2.0 TBD Martin Logan Forte | Roku TV
    • Guest Room 2-2.0 Klipsch RP-600M | SMSL DO100 Pro 2 | Pass ACA v1.6 Monoblocks
    • Guest Room 3-3.0 Martin Logan Motion 40, 50XT | Onkyo TX-SR705 | Apple TV | Samsung 55" TV
    • Guest Room 4-2.0 QAcoustics 3030i | Sansui AU-6900 | Sansui FR-1080 | Fire TV
    • Maintenance: Pro-Ject VC-S Record Cleaning Machine
  • mrbiron
    mrbiron Posts: 5,711
    I should have bought a pair....dagnabbit! :'(
    Where’s the KABOOM?!?! There’s supposed to be an Earth shattering KABOOM!!!
  • EndersShadow
    EndersShadow Posts: 17,590
    mrbiron wrote: »
    I should have bought a pair....dagnabbit! :'(

    That Dayens sounds right up your alley!

    "....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
  • mrbiron
    mrbiron Posts: 5,711
    mrbiron wrote: »
    I should have bought a pair....dagnabbit! :'(

    That Dayens sounds right up your alley!

    I don't want no stink'n Dayens, I want to sling solder! :p
    Where’s the KABOOM?!?! There’s supposed to be an Earth shattering KABOOM!!!
  • EndersShadow
    EndersShadow Posts: 17,590
    mrbiron wrote: »
    mrbiron wrote: »
    I should have bought a pair....dagnabbit! :'(

    That Dayens sounds right up your alley!

    I don't want no stink'n Dayens, I want to sling solder! :p

    You barely have time to listen to your Zu's..... solder is a pipe dream lol....
    "....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
  • mrbiron
    mrbiron Posts: 5,711
    mrbiron wrote: »
    mrbiron wrote: »
    I should have bought a pair....dagnabbit! :'(

    That Dayens sounds right up your alley!

    I don't want no stink'n Dayens, I want to sling solder! :p

    You barely have time to listen to your Zu's..... solder is a pipe dream lol....

    They haven't whispered to me in a good long while. Though they should like where they are heading in t-minus 7 months ;)
    Where’s the KABOOM?!?! There’s supposed to be an Earth shattering KABOOM!!!
  • EndersShadow
    EndersShadow Posts: 17,590
    mrbiron wrote: »
    They haven't whispered to me in a good long while. Though they should like where they are heading in t-minus 7 months ;)

    I'm very excited for you man! I'm also very jealous lol....
    "....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
  • stretchl
    stretchl Posts: 1,334
    edited July 2018
    Anyone reckon the Pass amp would work well with a pair of 705’s? Or perhaps as monoblocks, which apparently is a build option? Thanks.
    “Anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that 'my ignorance is just as good as your knowledge.'
    - Isaac Asimov

    Hi-Fi
    Apple Lossless --> Squeezebox Touch --> Joule Electra LA-100 Mark iii --> Odyssey Khartargo Mono Plus --> LSiM-705's
    Cabling by Groneberg
    Visuals
    https://media.illinois.edu/journalism/ledford-charles-stretch
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