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Keyboard amps

PostPosted: Wed Dec 21, 2016 6:20 am
by Veracohr
Do any of you use keyboard amps? I'm going to start jamming with a drummer friend & decided I could use a keyboard amp. So I'm building one for myself.

My question is: would 50W be enough for a smallish practice space with the drummer being the only other instrument? I haven't really played with other people much so I'm not up on these things. Originally I was designing it as 50W into 8 ohms or 100W into 4 ohms, then thought that might be overkill. I can save some money on the power transformer by making it 50W into 4 ohms.

Re: Keyboard amps

PostPosted: Wed Dec 21, 2016 12:39 pm
by ClavAnother
50w from a tube amp might be doable. 200w solid state is the min. A 500w PA is better. Turning down is always an option, not being able to turn up kills a jam. If you want to move bass frequencies, you need power

Re: Keyboard amps

PostPosted: Wed Dec 21, 2016 4:33 pm
by soundwave106
When I did the gig thing, I used a 300W Mackie SRM 450 (V1), which is a PA speaker, not a keyboard amp. It was enough to be a decent stage monitor. It was *not* loud enough to replace a stage or practice room PA.

Mind you, we were a punk-style rock band, and my keys had to compete with full-on drumming and a very loud guitar.

In your case I'd say it depends on the style of the drummers. Drums can get *very* loud if we're talking about full-on rock bashing. If it's a softer style (like say jazz) you can get away with less volume.

Re: Keyboard amps

PostPosted: Wed Dec 21, 2016 7:09 pm
by christianrock
I used that Roland 500W amp a few times. Other than the sound being pretty meh, it seemed to have enough power.

I think it's one of the lower cost options...

Re: Keyboard amps

PostPosted: Wed Dec 21, 2016 7:30 pm
by Veracohr
Well damn, so much for saving some money. To begin with I'll be using my crappy little guitar amp, so I'll try to judge from that how much more power I need. Thanks!

Re: Keyboard amps

PostPosted: Wed Dec 21, 2016 8:03 pm
by ClavAnother
I gig with a motion sound pro-145 which is around 200w and I never have any problems

Re: Keyboard amps

PostPosted: Wed Dec 21, 2016 10:30 pm
by midinut
I used a little Behringer B212a, which you can find used for $100-150 I believe, for many years of gigging. It actually sounded amazingly good for so cheap. Last year I bought one of them CPS SpaceStation v3 amplifiers which I absolutely love. They're a wee pricey at $800, but you may be able to find a deal on a used one.