Audio Electronic Supply SET II Amp

zingo
zingo Posts: 11,258
edited October 2011 in For Sale (FS) Classifieds
This is a copy of Nelson Pass' Zen amplifier that was commercially sold for just a short time before the amp got pulled for copy right reasons. It uses the upgraded Zen circuit, and is the best sounding SS amp I've owned at only 15wpc. I recently checked and tighten up all the connection and it's running great and sounding even better. It had a hum when I first got it, but fixed that by tightening up the connections on some caps, and ensuring proper grounds. On my last listening session I temped the fins at 155 degrees; nice and hot for a two MOSFETs per channel class A design. This amp sounds fantastic with my Klipsch horn speakers, but sounds great on any moderate sensitivity speakers. I don't have the original box for it, but I can pack it well for someone who wants it shipped; but local pick-up would be preferred. $400 paypal'ed and shipped.

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Jake
Post edited by zingo on
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Comments

  • Theheadsn
    Theheadsn Posts: 413
    edited September 2011
    did you mean 150wpc? or is it really only 15??

    Just curious because i couldnt see the point in having a 15wpc amp lol
    Home Theater Setup
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  • zingo
    zingo Posts: 11,258
    edited September 2011
    Theheadsn wrote: »
    did you mean 150wpc? or is it really only 15??

    Just curious because i couldnt see the point in having a 15wpc amp lol

    Wow... :rolleyes:
    Jake
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  • nooshinjohn
    nooshinjohn Posts: 25,474
    edited September 2011
    It is 1 20wpc class A according to the reviews I found on line. Always wanted to try a class A, but that will need to wait for my tube amps to be completed.
    The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

    “When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
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  • kawizx9r
    kawizx9r Posts: 5,150
    edited September 2011
    Goodluck with the sale Zingo! I hate you for not posting this up for sale last week.
    Truck setup
    Alpine 9856
    Phoenix Gold RSD65CS

    For Sale
    Polk SR6500
    Polk SR5250
    Polk SR104


    heiney9 wrote: »
    Any clue how to use the internet? Found it in about 10 sec.
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  • DMara
    DMara Posts: 1,434
    edited September 2011
    kawizx9r wrote: »
    Goodluck with the sale Zingo! I hate you for not posting this up for sale last week.

    You need to find a better excuse :tongue: Jake has been bumping this amp for a few weeks, including last week.
    Gears shared to both living room & bedroom:
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  • kawizx9r
    kawizx9r Posts: 5,150
    edited September 2011
    DMara wrote: »
    You need to find a better excuse :tongue: Jake has been bumping this amp for a few weeks, including last week.

    Really? First time I've seen it....been MIA from the forum these past few weeks.

    Spent $1.5k+ last week on my car too, would've bought this amp instead to keep me in the house :tongue:

    Heard a SET amp (not this one in particular) with Fostex rear-loaded speakers and it was to die for.
    Truck setup
    Alpine 9856
    Phoenix Gold RSD65CS

    For Sale
    Polk SR6500
    Polk SR5250
    Polk SR104


    heiney9 wrote: »
    Any clue how to use the internet? Found it in about 10 sec.
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  • mhardy6647
    mhardy6647 Posts: 34,018
    edited September 2011
    That is a pretty cool piece of hardware. Note that it is not a "SET" per se as a transistor is not a triode (even though it effectively has three elements, EBC, not unlike a triode) :-P
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  • zingo
    zingo Posts: 11,258
    edited September 2011
    Nelson Pass described the design as "single ended transistor". It does have a very natural sound, and it is amazing how good simple designs sound; whether tubes or transistors.
    Jake
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  • mhardy6647
    mhardy6647 Posts: 34,018
    edited September 2011
    I am in no position to argue with Nelson Pass... who does know good sound and how to extract it from components.
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  • zingo
    zingo Posts: 11,258
    edited September 2011
    I have never heard a bad design from NP; your speakers would only be so lucky... :biggrin:
    Jake
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  • zingo
    zingo Posts: 11,258
    edited September 2011
    Bump
    Jake
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  • zingo
    zingo Posts: 11,258
    edited September 2011
    Questions? Comments? Buyers? :biggrin:
    Jake
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  • heiney9
    heiney9 Posts: 25,217
    edited September 2011
    zingo wrote: »
    Nelson Pass described the design as "single ended transistor". It does have a very natural sound, and it is amazing how good simple designs sound; whether tubes or transistors.

    The Aleph 3 and 30 are even better.

    GLWTS, If I had even the slightest use for this, I'd probably pick it up for fun but I have 3 integrated tube amps that barely get any love and need to be rotated in and out to get any use :biggrin:

    John, your post is unclear??? This is not 120wpc single ended class A, good god that would be as big as the Pass Labs XA60 chassis.

    15wpc, single ended class A sounds right. The Alpeh 3/30 is 30 wpc single ended class A and is about twice the size and heatsink as this.

    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!
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  • FTGV
    FTGV Posts: 3,649
    edited September 2011
    mhardy6647 wrote: »
    Note that it is not a "SET" per se as a transistor is not a triode (even though it effectively has three elements, EBC, not unlike a triode) :-P
    Make that GDS since it's a Mosfet.:biggrin:

    And if the rail voltages are the same as the ZEN then 15 watts is a little optimistic,more like 10 ish.:smile:
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  • zingo
    zingo Posts: 11,258
    edited September 2011
    You could be right Fred. Specs quote 20wpc, but no matter what, it's a great sounding amp that can drive most speakers.
    Jake
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  • FTGV
    FTGV Posts: 3,649
    edited September 2011
    zingo wrote: »
    You could be right Fred. Specs quote 20wpc, but no matter what, it's a great sounding amp ....
    Sorry Jake I in no way meant to diminish the amp,and agree that if it sounds like the Zen (which it should)it will be a very sweet and musical sounding amplifier.
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  • zingo
    zingo Posts: 11,258
    edited September 2011
    FTGV wrote: »
    Sorry Jake I in no way meant to diminish the amp,and agree that if it sounds like the Zen (which it should)it will be a very sweet and musical sounding amplifier.

    No worries Fred as I only assumed the best. Thanks for the kind words about the amp, and I hope this will stir up a little more interested in this beauty:

    $375 shipped to your door CONUS
    Jake
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  • cstmar01
    cstmar01 Posts: 4,424
    edited September 2011
    grrr I would love to try this but seeing none of my speakers would do well with that little power won't work. Someday when I get into more eff speakers lol. GLWTS it looks like an amazing piece.
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  • zingo
    zingo Posts: 11,258
    edited September 2011
    The amp is really only limited in low impedance speakers; electrostatics, panels, etc. Low sensitivity is not much of an issue especially if you have a well paired preamp. 4 ohms is safely the lowest nominal impedance for this amp as long as the speaker doesn't have low dips.
    Jake
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  • zingo
    zingo Posts: 11,258
    edited September 2011
    post-3-1232604548.jpg
    Jake
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  • iskandam
    iskandam Posts: 704
    edited September 2011
    Theheadsn wrote: »
    did you mean 150wpc? or is it really only 15??

    Just curious because i couldnt see the point in having a 15wpc amp lol
    I tried driving my speakers with a 15wpc tube amp and now Pioneer SC-27. FWIW the tube amp sounded better in every way and I didn't feel like I'm missing anything (dynamics, spl, etc)
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  • zingo
    zingo Posts: 11,258
    edited September 2011
    Very true. The best amp I've ever used was my 9wpc 300B amp. Topology and build quality have far more to do with sound quality than power.
    Jake
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  • zingo
    zingo Posts: 11,258
    edited September 2011
    post-3-1232604587.jpg
    Jake
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  • zingo
    zingo Posts: 11,258
    edited September 2011
    $350 shipped to your door CONUS
    Jake
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  • zingo
    zingo Posts: 11,258
    edited October 2011
    Sale pending.
    Jake
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  • zingo
    zingo Posts: 11,258
    edited October 2011
    real-estate-sold-sign.jpg
    Jake
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  • kcoc321
    kcoc321 Posts: 1,788
    edited October 2011
    YEAH Jake :)
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