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Crazy Callaway

Joined: 05/03/12
Posts: 1
Amplifier Help
      #974047 - 05/03/12 01:34 AM
I have 2 Peavey SP-2Ti's Sound Reinforcement System (Max Power: 600W RMS / 300W RMS) & 2 QSC KW122 1000 Watt 12 Inch 2-Way Active Loudspeaker, but the on-board amps for the QSC's are both out. I'm very new at live audio, so I was wondering what would be the best amp set up to run all 4 of these speakers???

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Bob Bickerton
active member

Joined: 20/12/02
Posts: 3776
Loc: Nelson, New Zealand
Re: Amplifier Help new [Re: Crazy Callaway]
      #974053 - 05/03/12 04:37 AM

The first question to ask is why are the amps on the KW122 speakers out? I'm not familiar with the Peaveys but a quick look online would leave me to believe the QSCs would sound way better!

Also the KW122 are designed to be active speakers - no easy way to power them from an external amp - and why would you when they sound so good driven by their custom designed internal amp with all the processing and protection you you want.

If you're having difficulty connecting up the QSCs maybe give us a full breakdown of your set up, maybe we can help.



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Mike Stranks
active member

Joined: 03/01/03
Posts: 5510
Loc: Cirencester, UK
Re: Amplifier Help new [Re: Crazy Callaway]
      #974081 - 05/03/12 10:05 AM
I'm with Bob

... but in your 'report back' please let us know if the QSCs have ever worked for you and, if so, how did they fail? Did they make any pfft noises, emit smoke or smells or what? If you connect them to mains-power now do the lights come on and can you hear anything at all if you GENTLY increase gain/volume?

The older I get, the better I used to be

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Joined: 08/07/07
Posts: 3250
Loc: Cambridge, UK
Re: Amplifier Help new [Re: Crazy Callaway]
      #974137 - 05/03/12 12:15 PM
That reminds me. A friend of mine sold some fairly decent powered speakers to a local promoter (he needed the money to finance a Musicman bass, IIRC). Some time later he happened to be at a gig organised by that promoter, and was told that the speakers were rubbish. My friend had a look at them, and found that the promoter had taken a power amp and hooked up an outlandish chain of adaptors to get from Speakon outs to the speakers' XLR inputs! One speaker's power amp was toast, and the other was distinctly unhealthy.

Never underestimate the ingenuity of incompetence. (Remembering some of the ways I've screwed up, I completely count myself in that too!)

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