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  • PA System Questions

    You could get a powered mixer with enough channels for your setup. Something like this Shop around for your favorite brand. You can easily get something like this used for $300-400. Then get a pair of used single 15"'s with a horn for $300-400. This way you don't have to mess with getting a mixer, signal processors, amps, etc.
    For 100 ppl this will be plenty loud. Good luck.


    OK....another dumb question from a neophite.

    My son (15 y/o) was able to acquire a Peavey XRD680 powered mixer from Craigslist for $200. He has Shure m58 (?) mics which he got a cost from a Shure rep that has played with before. He is now looking for speakers, and may be able to get a pair of Mackie SRM450 powered speakers for $600. Would these be appropriate for his mixer? Are there other speakers you would suggest?

    Also, and here's the really dumb question, do you run the guitars and bass through the powered mixer or do they still plug into their amps?

    Yo la tengo,
    Fris

  • #2
    You don't need powered speakers with a powered mixer.

    Usually, guitar and bass will still go to their respective amps. Guitar amps should have a mic in front of them which goes to the PA.

    Here's a thread with different opinions on getting bass into the PA.

    http://acapella.harmony-central.com/forums/showthread.php?t=1528365

    Comment


    • #3
      Sounds like your son is doing some solid shopping - those are all pretty good deals, particularly on the Mackies.

      GCDEF's advice is correct - powered mixer --> powered speakers is typically redundant power.

      However.... if the Peavey mixer has a "main out"/line out jack on the front (should be on the lower right face of the unit), he could run the Mackie's in mono by sending them a simple line level signal (split the line out to the two speakers with a 1/4" TRS to 2 male XLR (mic) adapter and 2 mic cables), and then use the internal amps in the Peavey powered mixer for monitors as needed. Not a bad way to go.
      Main Guitars: ES339, '73 Tele Deluxe, '73 Guild Bluesbird, '74 Guild S-100C, Heritage H140, G&L ASAT, Rick 330-12, SG Classic, Martin D-1R, Carvin C980

      Amps: bassmen heads (BF'65 & SF '67), '68 Champ, '69 VibroChamp, '72 SF NM Super Reverb, '73 Deluxe Reverb, '72 Bandmaster Reverb, Mesa Boogie Studio 22+, Winfield Cyclone head, Traynor YGM-3 & YGM-4, misc. cabs

      FX: Fender Reverb Unit, Keeley BD-2, Fulltone Fulldrive 2, Dano Fish N' Chips EQ, SD-1, L.R. Baggs PADI

      Comment


      • #4
        Thanks for the info, guys. I had the price wrong on the Mackie SRM450's, it is $750 for the pair, but that includes the steel speaker posts - still a good deal. What the kids plan to do, in an effort to complicte matters in a way only teenagers can, is to buy the 450's, keep the posts, then try to sell the 450s for around $900. They will then buy a pair of Mackie C300Z speakers from ZZSounds for 359 each with free shipping. Coupling this with the Peavey powered mixer they got for $200 and the 2 Shure M58 mics @ $140 will give them a full, pretty high quality, set up for around $900. They already have adjustable boom mic stands, as well as both mic and speaker cables.

        Is this plan feasible? Whaddya think?

        Yo la tengo,
        Fris

        Comment


        • #5
          Sounds workable. $450 per Mackie is doable as a sale price (they seem to be going on ebay for about that much to a little more w/out shipping)

          For the extra $150 seems like a lot of work though. And, I think the SRM450's would sound a lot better - bi-amped and perfectly powered.... I'm not a fan of them for monitors as they can thermal, but up on stands, I think they would have much much better sound AND have monitor power for later for the extra $150.
          Main Guitars: ES339, '73 Tele Deluxe, '73 Guild Bluesbird, '74 Guild S-100C, Heritage H140, G&L ASAT, Rick 330-12, SG Classic, Martin D-1R, Carvin C980

          Amps: bassmen heads (BF'65 & SF '67), '68 Champ, '69 VibroChamp, '72 SF NM Super Reverb, '73 Deluxe Reverb, '72 Bandmaster Reverb, Mesa Boogie Studio 22+, Winfield Cyclone head, Traynor YGM-3 & YGM-4, misc. cabs

          FX: Fender Reverb Unit, Keeley BD-2, Fulltone Fulldrive 2, Dano Fish N' Chips EQ, SD-1, L.R. Baggs PADI

          Comment


          • #6
            I'd keep the Mackie SRMs when you get them and use them as mains as others have suggested. The SRMs are internally biamped, so they will sound better than the C300z speakers. And when your son gets some more cash together with his buddies, they should get a set of monitors and use the Peavey mixer's power amps to drive those so that they can here themselves play at the gigs, which is part of the fun!

            Adam

            Dynamite DJs

            Comment


            • #7
              I agree that it is a lot of work, but $150 is a lot of dough to a 15 y/o. He has a job making 7% of everything he sells while running the on-line side of a small, local ski and snowboard shop, so he would have to sell over $2100 worth of stock to make up the difference. Plus, he gets to keep the steel speaker posts, saving another $125 or so. Finally, the Mackie C300z/Peavey XRD680/Shure M58 set up is exactly the same as his guitar instructors, who he idolizes.

              One question, however. We have received differing opinions on whether the powered mixer would work well with powered speakers, with one person who runs a recording studio telling me that you could potentially blow out the speakers using them this way. Any thoughts?

              Thanks very much for your help and advice, hermano.

              Yo la tengo,
              Fris

              Comment


              • #8
                One question, however. We have received differing opinions on whether the powered mixer would work well with powered speakers, with one person who runs a recording studio telling me that you could potentially blow out the speakers using them this way. Any thoughts?


                The powered mixer-powered speakers combo will work fine if you hook it up correctly. You cannot connect the powered speakers to the "speaker outputs" on the back of the mixer, as that would send an amplified signal to the speakers (which is bad). You would instead run a cable from the "main outs" on the Peavey mixers to the "inputs" on the back of the Mackie powered speakers. This bypasses the amplifier inside the Peavey mixer and feeds the speakers with a "line level" output. This would be perfectly fine and safe to do and would not damage your speakers. Also, as I stated above, you would not be using the mixer's power amps so later when your son gets a pair of monitors, he could use the mixer's internal amps to power them nicely. This leaves for expansion later!

                Anyway, Good Luck!

                Adam

                Dynamite DJs

                Comment


                • #9
                  One question, however. We have received differing opinions on whether the powered mixer would work well with powered speakers, with one person who runs a recording studio telling me that you could potentially blow out the speakers using them this way. Any thoughts?

                  Thanks very much for your help and advice, hermano.

                  Yo la tengo,
                  Fris



                  It may be possible to damage the amp or speakers, but the point is that it makes no sense to use a powered mixer and powered speakers...redundant power.
                  "If you don't know where you are going, you might wind up someplace else" - Yogi Berra, 1925-2015

                  Comment


                  • #10
                    It may be possible to damage the amp or speakers, but the point is that it makes no sense to use a powered mixer and powered speakers...redundant power.


                    However it does leave for later expansion!
                    Adam

                    Dynamite DJs

                    Comment


                    • #11
                      However it does leave for later expansion!



                      Only if the speaker will accept a speaker-level input. Not all do.
                      "If you don't know where you are going, you might wind up someplace else" - Yogi Berra, 1925-2015

                      Comment


                      • #12
                        Only if the speaker will accept a speaker-level input. Not all do.


                        What passive monitor speaker does not accept a speaker-level input? Please explain...
                        Adam

                        Dynamite DJs

                        Comment


                        • #13
                          Only if the speaker will accept a speaker-level input. Not all do.


                          What passive monitor speaker does not accept a speaker-level input? Please explain...
                          Adam

                          Dynamite DJs

                          Comment


                          • #14
                            What passive monitor speaker does not accept a speaker-level input? Please explain...


                            Oh, the question was about using a powered mixer into a powered speaker.
                            "If you don't know where you are going, you might wind up someplace else" - Yogi Berra, 1925-2015

                            Comment


                            • #15
                              Let's be clear...

                              If you send the AMPLIFIED signal out of the POWERED MIXER into the regular input of the POWERED SPEAKER that will be a disaster, and is certain to blow something up.

                              If there is a PASSIVE (un amplified) output somewhere on the powered mixer that you can utilize, THAT WOULD WORK going into the powered speaker.

                              Most have been saying why bother, because the POWERED 450S are going to be a better sounding and safer to run set up than using the passive C300 Zs, so maybe think about keeping the powered speakers, finding a little passive mixer (for about $ 100 maybe), and just pocketing the savings to keep the youngsters happy about it.

                              The most important thing is to get a system that works well, and is easy to use perhaps.
                              http://www.myspace.com/steverobertband
                              Fav. Quote: "Be the change you want to see in the world."

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