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Thread: What power amp?

  1. #1
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    What power amp?

    I've posted before about my L100T's and was wondering if I could use a PA type power amp. I was at the local music store tonight and saw some great deals on QSC and Crown. The Crowns are probably low end (for the price I saw), said "made in China" but for $329 you get 260 wpc@8 ohms. The QSC was about $300 with 200 wpc.
    Would they work well? I'm aware of the input connectors being different as well as input sensitivity differences but I would think just turning up the gain would take care of that.
    I don't want to spend megabucks on a home unit unless I can get a deal.
    Bob

  2. #2
    Administrator Robh3606's Avatar
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    Watch the fans if they have them. They can be louder than you realize in a quiet room. I use older Crown amps and think they sound very good. They have no fans are quiet as hell and can be strapped at the flick of a switch.

    Rob

  3. #3
    RIP 2011 Zilch's Avatar
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    JBL 6230 and 6260

    Those you've mentioned will work, most likely.

    However, I've recommended used JBL amps from the 6200 series consistently here, with considerable agreement from fellow forumites. You can find them as low as $200 on eBay, and they appear there frequently.

    These are beefy, clean, quiet workhorse pro amps with no fans. They don't disappoint.

    http://www.jblpro.com/pub/obsolete/6200ser.pdf

  4. #4
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    Thanks, guys. BTW, damping factor seems to be the important thing? Most of these amps have fairly high damping values.
    Bob

  5. #5
    Senior Member Don Mascali's Avatar
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    I use four of the Yamaha amps for HT and music and have found them to be an excellent value. (2 x P7000, P5000 and P2500)

    They have temperature controlled fans and I have never had them come on, even during some pretty spirited listing sessions.
    4406, 4412A, L100, L100t3 (3 pair), L1, L7, 4645C, 4660A, 4695B, SR4735 and various DIY JBL Pro loaded systems.

  6. #6
    Senior Seņor boputnam's Avatar
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    Quote Originally Posted by Boss96
    BTW, damping factor seems to be the important thing?


    Yea, Bob - do a Search on "output impedance" (and impedEnce - our spelling acumen wanders a bit...)" and "damping factor". Quite a bit of relevant discussion should show-up.
    bo

    "Indeed, not!!"

  7. #7
    Real Prober
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    McIntosh Amp all the way!

  8. #8
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    I thought McIntosh amps do not have very high damping factors? I seem to remember reading that in a recent post.
    Besides, I can't afford McIntosh
    Bob

  9. #9
    Administrator Mr. Widget's Avatar
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    Quote Originally Posted by Real Prober
    McIntosh Amp all the way!
    Hey Probe,

    I see you are in the SF area, want another MC2100? If you are interested send me a PM.

    Widget

  10. #10
    IDF
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    Quote Originally Posted by Real Prober
    McIntosh Amp all the way!
    Another vote for McIntosh, true cult amps.
    Latest models now have a damping factor of 200 or greater.


    JBlL 4343
    McIntosh C34V
    Mcntosh 7200 (DF > 200)

  11. #11
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    Damping factor

    http://www.lansingheritage.org/html/...ing-factor.htm

    the article is courtesy of Giskard and quite informative
    John Nebel

  12. #12
    korgroenewoud
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    Hi,

    Once more another vote for Mcintosh.
    Really great amps. Have had several models from the seventies till now.
    Never heard any problem with the dampingfactor. No matter if it was 15 or 200.
    They always sound great!



    JBL S 3100 MK II/ UT 405
    Mcintosh C 100
    Mcintosh MC 1000 /monaural
    Audio-Note Dac 1
    Technics z 1000

  13. #13
    Real Prober
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    Quote Originally Posted by Mr. Widget
    Hey Probe,

    I see you are in the SF area, want another MC2100? If you are interested send me a PM.

    Widget
    I was thinking to get something stronger. Thanks anyway.

  14. #14
    Administrator Mr. Widget's Avatar
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    No problem, just looking for a good home for it. I guess I'll send it the bay-way.

    Widget

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