Re: Amp for my bass player
One of the very cool tricks you can do with some of the Peavey bass amps is biamping them. Check out the Peavey website for Owner's Manuals; but here's the general idea.
Lets say he gets a Peavey Combo 300. Those are actually pretty good amps on their own, especially if they have the Black Widow 15" Speaker. Starting in the 1980s, these amps came with a built-in electronic crossover and patchpoints. And let's say you have an old Peavey amp that you are not using. This could be a small Guitar amp--like the Peavey Audition, Envoy, or Bandit; or one of the small Peavey Bass amps, like the tiny Minx--or even a Peavey Keyboard Amp, like the KB60.
With the amps OFF: set the small amp on top of the main bass amp (say the Combo 300); and run a patch cord from the CROSSOVER HIGH OUT JACK to the input of the small amp. The will be our High Frequency (HF) amp. It will work best if you have a POWER AMP IN JACK (usually located on the back of the amp)--so you can bypass the preamp of the HF amp. (If you need to use the HF amp's normal inputs, use the #2 input (LOW GAIN), and keep the GAIN knob low and the MASTER VOLUME maxed. This will help avoid distortion.)
Now feed a short patch cord from the CROSSOVER'S LOW OUT JACK back into the Combo's POWER AMP IN jack. The highs are going into the top (guitar) amp and the lows will be fed back into the bass Combo. Start with the volumes very low--you don't want to blow anything! You'll want to set the CROSSOVER FREQUENCY to 150-225 Hz--a lot of this will depend on your tastes, and the capabilities of the HF amp and it's speaker.
The top amp doesn't have to be a huge amp to make a big impact on your sound. You'll get a wider frequency response and better dynamics AND more volume with a biamped system. And there is a tremendous variety of amps that you can use for the HF amp--and there's tremendous flexibility built into those Peavey bass amps with their extensive patch bays and crossovers.
Oh, and this is a GREAT way to amplify a keyboard, like a Fender Rhodes piano. You can separate the speakers for a HUGE left/right spread, and add reverb, phasing or chorusing to the HF amp. This will keep the bass notes clean and add a swirling 3-D effect to the top-end. KEWL!!!!
Good Luck!
Bill