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Power Amps... What do you use?

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  • Power Amps... What do you use?

    So I'm just curious as to what everyone is using to drive all these large 3 way and large MTMW and MTMWW speakers. With that many drivers what is an acceptable amount of power? I assume these larger speakers don't do so well with the regular mid-fi 120W/ch receiver? Also does the impedance play a huge factor in what amp you decide to use?

  • #2
    Re: Power Amps... What do you use?

    I can run myself out of the room with my measly little onkyo 606...if there's a reason to have more power than that... I haven't found it yet. That's just me though.
    ~Mark

    Stuff I've builded http://techtalk.parts-express.com/co...lies/smile.png

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    • #3
      Re: Power Amps... What do you use?

      I have a JVC receiver I got for free, I believe it does 100Wpc. It has optical I/Os

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      • #4
        Re: Power Amps... What do you use?

        in my indoor shop i have a sherwood 100x2 that powers my tmww just fine. in my livingroom my onkyo 606 powers them fine too, as loud as i want.
        " To me, the soundstage presentation is more about phase and distortion and less about size. However, when you talk about bass extension, there's no replacement for displacement". Tyger23. 4.2015

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        • #5
          Re: Power Amps... What do you use?

          This thing (Parasound HCA 1000)

          Pretty rockin, off ebay for under $200. Lots of power, quality, cheap, thats how I roll.

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          • #6
            Re: Power Amps... What do you use?

            ClassDAudio power amp modules driven by a PC.

            I'm calling it my PCeiver.
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            • #7
              Re: Power Amps... What do you use?

              (SAE) Paramount Pictures MC200 6-channel, plus Mitsubishi MA5200&4200 amps for the active systems... HK 2000 4/2 channel, Sony TA-2000 vintage amp for whatever combo is in at any giver time.

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              • #8
                Re: Power Amps... What do you use?

                Originally posted by lamski View Post
                So I'm just curious as to what everyone is using to drive all these large 3 way and large MTMW and MTMWW speakers. With that many drivers what is an acceptable amount of power? I assume these larger speakers don't do so well with the regular mid-fi 120W/ch receiver? Also does the impedance play a huge factor in what amp you decide to use?
                The low impedance will require higher current output capabilities. If you're shopping, amps with multiple output device pairs can be a good indicator of low impedance capabilities.

                My amps range from ancient to merely vintage:
                Hafler DH-200
                Marantz SM-6
                Marantz MA-5

                On the bench, waiting repair/restoration:
                Dynaco ST-70
                Sumo Andromeda
                Heathkit W3

                Of the ones mentioned above, I would use the Sumo or Hafler for low impedance applications. The tube amps can deal with low impedance loads through the magic of transformer taps. The Marantz amps are kind of cool as they can be switched into a pure class A mode, but they generate serious heat in this mode. They are not rated for class A mode into low impedance loads, however.

                As long as you don't clip the amplifiers, you probably won't note that much of a difference. All of these are capable of delivering average SPL's in the pain range.

                Regards,

                Rob

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                • #9
                  Re: Power Amps... What do you use?

                  If you want a high quality power amp that will handle 2 ohms and wild impedances, look no further than the Aragon 4004 MK II.

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                  • #10
                    Re: Power Amps... What do you use?

                    I use a QSC GX5 for my mains.

                    James

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                    • #11
                      Re: Power Amps... What do you use?

                      Three Accuphase P-300s (1973) for HT channels.

                      Jolida 302 tube amp for an Altec 604e open baffle system and an Adcom 5800 for an electrostatic pair.

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                      • #12
                        Re: Power Amps... What do you use?

                        Hmm where to start
                        Pioneer SA9800
                        BGW 250E
                        LM3886 Gain Clone
                        Crown D60
                        Dared VP-16
                        I know there are a couple more in there somewhere
                        The vintage SA9800 is probably my favorite.

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                        • #13
                          Re: Power Amps... What do you use?

                          Originally posted by violaplayer View Post
                          Hmm where to start
                          Pioneer SA9800
                          BGW 250E
                          LM3886 Gain Clone
                          Crown D60
                          Dared VP-16
                          I know there are a couple more in there somewhere
                          The vintage SA9800 is probably my favorite.
                          I have an SX-980 and SX-1250. They might be my favorites as well. Is that SA9800 mosfets?

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                          • #14
                            Re: Power Amps... What do you use?

                            Originally posted by lamski View Post
                            So I'm just curious as to what everyone is using to drive all these large 3 way and large MTMW and MTMWW speakers. With that many drivers what is an acceptable amount of power? I assume these larger speakers don't do so well with the regular mid-fi 120W/ch receiver? Also does the impedance play a huge factor in what amp you decide to use?
                            I used to power 4 ohm MTMs with a 10-15 year old Sony mid-fi. While it never went into protect it would get screaming hot if I pushed them. Then I got an HK AVR247 that's rated at 65 wpc. It seems to run warm all the time. The power is okay, no more.

                            In my main theater room I use an Acurus 100x3 for my WMTMWs and MTM center. It never even gets warm and has plenty of power. I have an Adcom GFA-545II and an NAD2155 on the rear and surrounds. They are solid as well. An Outlaw preamp runs the show. It's kind of a cobbled up arrangement but eBay has been very good to me. No need for a fancy HT receiver here for a while.

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                            • #15
                              Re: Power Amps... What do you use?

                              I think you'll find some like to use a plate amp for designs you mentioned with 1 or 2 woofers. This cuts down on passive parts cost, large woofers can take big coils. Plus you have adjustable XO points and phase on your amp. Then the MTM portion doesn't require as much power to drive IMO.

                              What I use.
                              HT- Pioneer VSX-D608 5.1
                              I'm driving 4 ohm L/C/R speakers with this receiver no problem.

                              WTMWWW Active 3-way
                              Onkyo M-501
                              Yamaha AX-570 w/preouts
                              Yamaha AX-900 w/preouts
                              Behringer CX3400 XO
                              The Yamahas aren't my first choice but fun to play with.

                              Computer room.
                              2-Dayton MCA2258 Bi-amps driving RB-MTMs towers /no sub.
                              These could be a MTMW easily.

                              Are you building a design you mentioned?

                              Later
                              Dan

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