Pass Labs amp: I've never heard Bass like this before....

Ern Dog
Ern Dog Posts: 2,237
edited December 2009 in 2 Channel Audio
First off, my favorite part of the whole sound frequency range is the bass, upper bass, mid-bass and low-bass. Low bass if my favorite, but it's all good.

My Pass Labs X-150 amp arrived yesterday and so I've been listening to it non-stop since I got it. What strikes me most is that the upper bass has a texture and detail that I've never heard before. It's hard to describe, it's like now I can hear this vibration that was never there before. It reminds me of when I had Magnepan MMG's and the bass on that was the cleanest/tightest I think I've ever heard. The MMG's didn't go very low however, so it never reached Low bass. But it's that same type of bass I'm hearing with my Tyler Acoustics! Unreal.

Also this amp is similar to my Rogue Audio Tube amp in that everything sounds very smooth from top to bottom even when cranked up loud. Very nuetral too. Not warm or bright, and yet detailed at the same time.

More to come on this later...
Post edited by Ern Dog on

Comments

  • phipiper10
    phipiper10 Posts: 955
    edited October 2009
    I keep coming across these amps. Just not in the budget at the moment. At some point for sure.
    Analog Source: Rega P3-24 Exact 2 w/GT delrin platter & Neo TT-PSU Digital Source: Lumin T2 w/Roon (NUC) DAC: Denafrips Pontus II Phono Preamp: Rega Aria MK3 Preamp: Rogue RP-7 Amp: Pass X150.8 Speakers: Joseph Audio Perspective 2, Audio Physic Tempo Plus Cables: Morrow M4 ICs & Audio Art SC-5 ePlus, Shunyata PCs Misc: Shunyata Hydra Delta D6, VTI rack, GIK acoustic panels
  • george daniel
    george daniel Posts: 12,096
    edited October 2009
    Congrats,, which model Tylers?
    JC approves....he told me so. (F-1 nut)
  • comfortablycurt
    comfortablycurt Posts: 6,745
    edited October 2009
    I want your rig!

    That's very similar to the dream rig I've got in mind for several years down the road.
    The nirvana inducer-
    APC H10 Power Conditioner
    Marantz UD5005 universal player
    Parasound Halo P5 preamp
    Parasound HCA-1200II power amp
    PolkAudio LSi9's/PolkAudio SDA 2A's/PolkAudio Monitor 7A's
    Audioquest Speaker Cables and IC's
  • george daniel
    george daniel Posts: 12,096
    edited October 2009
    Eh,, I looked at your sig,, enjoy .
    JC approves....he told me so. (F-1 nut)
  • Sherardp
    Sherardp Posts: 8,038
    edited November 2009
    Nice and congrats on the new purchase. Ive been working with Tyler on a package for the HT Room, If all goes well I will have a pair of D10s soon.
    Shoot the jumper.....................BALLIN.............!!!!!

    Home Theater Pics in the Showcase :cool:

    http://www.polkaudio.com/forums/showcase/view.php?userid=73580
  • tonyb
    tonyb Posts: 32,967
    edited November 2009
    Nice amp and congrats. One of the things I dig about this hobby is searching for the limitations of your speakers when coupled with the right gear. You would be surprised at what some speakers can handle and the SQ you could get when you find that marriage of gear. Looks like your finding it,have fun.
    HT SYSTEM-
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Polk Sig. 20's
    Polk FX500 surrounds

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable

    Kitchen

    Sonos zp90
    Grant Fidelity tube dac
    B&k 1420
    lsi 9's
  • heiney9
    heiney9 Posts: 25,165
    edited November 2009
    Nelson Pass knows how to build an amp. That's the first thing I noticed about my Aleph 30. The bass was fantastic and the other thing just as noticeable was the absolutely stunning clarity of everything.

    I had not heard this kind of clarity, and especially how deep and wide the soundstage is. The separation of instruments and vocals on well recorded music continues to blow me away.

    Enjoy.....Pass pieces are special.

    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!
  • Ern Dog
    Ern Dog Posts: 2,237
    edited November 2009
    Thanks guys.

    This amp is sounds like a combination of tubes and SS! The clarity is over the top. Zero listening fatigue. Very seductive and lush.
  • heiney9
    heiney9 Posts: 25,165
    edited November 2009
    Ern Dog wrote: »
    Thanks guys.

    This amp is sounds like a combination of tubes and SS! The clarity is over the top. Zero listening fatigue. Very seductive and lush.

    YEP, I fell in love with my Pass amp the first time I heard it; the only thing that will replace it is another Pass amp; higher up the chain. Looking at an X150.5, but they are not common ground so I have to make an AI-1 cable first.

    Enjoy........it may be the last amp you'll ever buy!

    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!
  • tcrossma
    tcrossma Posts: 1,301
    edited November 2009
    Glad you're liking the new amp. I have no plans to ever replace mine.
    Speakers: Polk LSi15
    Pre: Adcom GFP-750 with HT Bypass
    Amp: Pass Labs X-150
    CD/DVD Player: Classe CDP-10
    Interconnects: MIT Shortgun S3 Pro XLR
    Speaker cables: MIT MH-750 bi-wire
    TT:Micro Seiki DD-35
    Cartridge:Denon DL-160
    Phono Pre:PS Audio GCPH
  • Ern Dog
    Ern Dog Posts: 2,237
    edited November 2009
    heiney9 wrote: »
    it may be the last amp you'll ever buy!


    I had that thought and was going to say that, but I've said that so many times and then upgraded. I could see myself upgrading to the X-150.5 because of the extra goodies AND it has the very cool looking blue lit dial. :cool:
  • sagslaax
    sagslaax Posts: 1
    edited November 2009
  • ben62670
    ben62670 Posts: 15,969
    edited November 2009
    reported.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
  • Lowell_M
    Lowell_M Posts: 1,660
    edited December 2009
    Ern Dog wrote: »
    I had that thought and was going to say that, but I've said that so many times and then upgraded. I could see myself upgrading to the X-150.5 because of the extra goodies AND it has the very cool looking blue lit dial. :cool:

    After hearing H9's Aleph30, a Pass amp is on my list of future upgrades as well.
    HT
    RTi70 mains
    CSi30 center
    RTi28 Rears
    Velodyne CHT-12
    H/K AVR-247
    ADCOM GFA-7000
    Samsung PN58B860
    Playstation 3

    2-Channel
    Polk Audio LSi15's
    Rotel RCD-1072
    Nakamichi CA-5 Pre
    ADCOM GFA-555
    Signal Cable Analog II IC's
    Signal Ultra Bi-Wire Speaker Cables
  • dudeinaroom
    dudeinaroom Posts: 3,609
    edited December 2009
    Awesome. Ern, I like the same thing you do. Nothing like that low bass drive. How do the Pass amps sound compared to a GFA 555 (the orignal not the MKII) if you know?
  • Systems
    Systems Posts: 14,873
    edited December 2009
    I wonder if those amps are still built at his kitchen table? Good stuff right there.
    Testing
    Testing
    Testing
  • Face
    Face Posts: 14,340
    edited December 2009
    187CAM wrote: »
    I wonder if those amps are still built at his kitchen table? Good stuff right there.

    AFAIK, only the First Watt amps, Aleph and F series.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
  • Lowell_M
    Lowell_M Posts: 1,660
    edited December 2009
    Awesome. Ern, I like the same thing you do. Nothing like that low bass drive. How do the Pass amps sound compared to a GFA 555 (the orignal not the MKII) if you know?

    We had a quick comparison in my 2-channel with H9's Aleph30 and my 555, but really didn't have enough listening time. From what I can recall, the Aleph was everything I like about the 555 but much better. Very natural sounding amp, extreme depth and width of soundstage. very nice separation, and even though the Aleph has a measily 30wpc, the bass was excellent and similar to Erndogs description from his X150. I would LOVE to hear an X150 on my LSi's.
    HT
    RTi70 mains
    CSi30 center
    RTi28 Rears
    Velodyne CHT-12
    H/K AVR-247
    ADCOM GFA-7000
    Samsung PN58B860
    Playstation 3

    2-Channel
    Polk Audio LSi15's
    Rotel RCD-1072
    Nakamichi CA-5 Pre
    ADCOM GFA-555
    Signal Cable Analog II IC's
    Signal Ultra Bi-Wire Speaker Cables
  • Ern Dog
    Ern Dog Posts: 2,237
    edited December 2009
    A friend in my local Audio club loaned me his Adcom awhile back and I was very impressed with how musical it sounded, it was an old 2 ch 30wpc amp. Don't remember model. A few things were notably different with the pass amp. The pass amp has excellent separation between each instrument. So if you got a full symphony playing, you can hear each individual instrument. Each has its own three dimensional space and texture. This also creates more depth and layers to the music.

    I listened to Dark side of the moon last night cranked up and holy ****! Music sounded Very full, robust and had lots of weight.