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Amp for small studio
post Oct 27 2012, 03:37
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I own a really small studio at 270 square feet (~15 feet X 18 feet). I'm putting a sound system in and my main question is about the amp. We of course have neighbors all around us. I want it to sound good. I like nice lows when I listen to music, and during movies it would be nice to hear the voices clearly. It obviously doesn't need to be too powerful.

I was wondering, about what level of rms amperage should i be looking at? Also, I am partial to Yamaha amps, anyone recommend one that may suit my needs? My wife also likes/wants karaoke, but maybe that will we'll accomplish using another device, some blue ray players have that option i've seen. Just in the dark on that as i have never set up karaoke before.


This post has been edited by tarkovsky: Oct 27 2012, 03:40
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post Oct 29 2012, 19:22
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I was wondering, about what level of rms amperage should i be looking at?
It's almost impossible to answer that question... Speaker efficiency varies a lot, and we don't know the SPL level (loudness) you will be listening at.

FYI - Amplifier power output is meassured in Watts, not amps. Current is measured in Amps. wink.gif (There is a relationship between Volts, Amps, Ohms, and Watts, but don't worry about that.)

My rule-of-thumb is that 100W per channel is plenty for most "living room" set-ups. And, about 100W per channel seems pretty standard for modern home theater receivers, so getting enough power shouldn't be a problem unless you want to rattle the walls. A doubling of power is only 3dB louder (or halving power is 3db lower), so it takes a big increase in power to go noticably louder.

However, it's not unusual to find a pair of speakers that's 6db more efficient than another...

I agree that speakers are the most important thing, so if you don't already have the speakers, it's best if you go to a hi-fi or home-theater store and listen before buying. The general rule is "all amps sound alike" (assuming you are not driving it into distortion), and "all speakers sound different".

And, don't be too concerned about "matching" amplifer power to speaker power. I wouldn't be too worried about using 25W speakers with a 100W amp, unless you have loud parties... In general, if you don't drive the speaker into distortion, you won't burn it out. And, the power ratings for speakers are complex and not always reliable... A 100W speaker is supposed to work with 100W of music, but you can usually fry the tweeter in a 100W speaker with 100W test-tones.

I own a really small studio at 270 square feet (~15 feet X 18 feet)....

...We of course have neighbors all around us.
Is that the size of the room, as in "music studio" or "recording studio", or the size of the apartment, as in "studio apartment"? If it's an apartment, bass is almost always a problem because bass tends to goes through walls sad.gif

My wife also likes/wants karaoke....
There's not much to it. You just need the karaoke machine (or disc player) with a microphone & microphone input, and the discs which display the lyrics and the music minus the singing/lyrics. (Hi-fi & home theater amps don't have microphone inputs, and most "normal" CD/DVD players won't display the lyrics.)
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