PASS Amplifier suggestions - Page 2
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  1. #11
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    Re: PASS Amplifier suggestions

    Yup, I would say they are wonderful amplifiers. I also agree with what Joe was saying that it might be meaningless to decide on an amp until he decides which way he is going in speakers.
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  3. #12
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    PASS Amplifier suggestions

    Quote Originally Posted by jadedavid View Post
    A great question, as I don't know which speakers to go with.
    I like a warmer, somewhat old school type sound. Soundstage and depth are high on my list. Good detail without any harshness.
    Music choices are blues, fusion Jazz, acoustical. Think Keb Mo, Jesse Cook, Gregory Porter, Yello etc.
    I have the acoustical room from hell. Big floorstanders such as Legacy Focus overload the room and actually produce less bass than smaller speakers.
    So probably a 10" or equivalent woofer system is about the max.
    Not sure what combos of Pass / speakers plays well together.
    Perhaps Sonus Faber, Harbeth, Von Schweikert????
    Anyone please chime in with your experiences that might meet these parameters.
    Thanks
    Pass and Harbeth go together very well. I do have the INT-60 with 30.2s in my summerhouse, and it is a smashing combo if you like a good bass and a somewhat warmish sound, yet with a transparent upper register. The turn-side is a slight lack of speed.

    In my main system I had the 250.8 with Magicos, and those played well also. At some point I just desired a slightly faster amp and a little bit more articulated sound and switched to Soulution, which IMHO nails it all.


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  4. #13
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    Re: PASS Amplifier suggestions

    Quote Originally Posted by joeinid View Post
    I think the 260.8 have about 34wpc of Class A before switching.
    Class A amps sound different (better) than Class A/B at all power levels, not just at or beyond the transition point. Quoting Nelson Pass:

    Class AB has a moderate bias current, and Class A has a high bias current. Class AB push-pull amplifiers are hybrids between Class B and Class A. Class AB run Class A at low power levels, and become Class B amplifiers at output currents determined by the bias.

    Higher bias doesn’t just move the Class A transition to higher ground – it has a profound influence on the amplifier at all power levels. It lowers the distortion at low levels as well as high levels, as seen in the distortion vs power curves for an amplifier with the bias set at different levels.

    The benefits of high bias current extend beyond simple harmonic distortion measurements – you also get a reduction of intermodulation distortion (arguably more important), and a lower, more consistent output impedance. As a corollary benefit, the heavy hardware required to support Class A operation will show better thermal stability and will deliver better performance into difficult loads.
    Howard

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  6. #14
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    Re: PASS Amplifier suggestions

    I think there might be a few Pass owners at this forum maybe even a dealer...
    Rob
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  8. #15
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    Re: PASS Amplifier suggestions

    The KEF Reference series would be worth consideration.

    I know you are looking for Pass in this thread but as you are sort of looking for an overall change, I'd really encourage a listen to the Vandersteen speaker & amp combo. Some of the guys more familiar may be able to provide some model numbers. I just know I really enjoyed what I heard from them at the show. Since you already have the DAC & preamp the Vandersteen system would drop in right where you need it.
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  9. #16
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    Re: PASS Amplifier suggestions

    Quote Originally Posted by The Sandman View Post
    Class A amps sound different (better) than Class A/B at all power levels, not just at or beyond the transition point. Quoting Nelson Pass:
    I agree, given the choice, I always opt for the full class a version Pass amps. The xa60.8 are still among my favorites. I’ve always wanted the xa160.8 but now with my Avantgarde speakers, high power amps just aren’t necessary.
    Joe

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  10. #17
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    Re: PASS Amplifier suggestions

    I love my INT-250 with Studio2. I have used INT-150 and the INT-250 is significant upgrade. I do not need to look further.
    In the past I have used X1, Xono and X350 with Thiel. This setup served me well for over decade until I moved to tube. I love Pass sound and decided to come back to it.

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  12. #18
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    Re: PASS Amplifier suggestions

    The INT-250 looks like a serious amplifier.
    I had not really thought of going integrated but it does eliminate a power cable and interconnect.
    And you don't have to be concerned with the separates (pre / amp) playing well with each other.
    Worth looking at.
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    A trusty old Pioneer PD-65 as a Transport, Lumin A-1, a Merrill Heirloom T.T. as sources. A Lampizator DAC to PAD Cables to a SP-14 Tubed PreAmp, Pass XA30.5 , Fusion speaker cables, AudioKinesis Zephryn 46 Speakers. pair Rythmik F-12 subs, EP2050, Kaplan Power cables, Hydra power conditioner, Two dedicated 20Amp power lines. DIY corner traps and Acoustic Geometry Curves for room treatment.

  13. #19
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    Re: PASS Amplifier suggestions

    Quote Originally Posted by jadedavid View Post
    The INT-250 looks like a serious amplifier.
    I had not really thought of going integrated but it does eliminate a power cable and interconnect.
    And you don't have to be concerned with the separates (pre / amp) playing well with each other.
    Worth looking at.
    Its really excellent. I think it competes with the XP12/X250.8. The separates give you a little bigger soundstage and separation, but it’s close. A really good PC on the INT-250 will make a big difference as well. Just note, it’s a big honker!


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