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Microphone Month 4

Sweetwater Forums [Archived]

After 15 years of great discussions, the Sweetwater Forums are now closed and preserved as a "read-only" resource. For discussions about current gear, check us out on Facebook, YouTube, inSync, and our Knowledge Base.

speakers vs amplifer

cedrix2001

I have a VOCOPRO DA-40780FX Digital Karaoke Amplifier 270 watts with only left and right speaker connection, will it be Ok if I add two extra same brand speakers? it mean two speakers connected to left and two at the right, Will the sound be much better? will this set up overworked the amplifier? will the speakers power affect the amplifier capacity, Overall, is this setup correct? basically new in this area, thanks for your attention,
March 9, 2013 @10:45pm
wogg

Adding an extra pair of speakers will make the amplifier work much harder. Many amps are capable of doing so, but you should be sure before you try.
You will need to know the impedance of your speakers, and the minimum drive impedance of the amplifier. It's really likely your speakers are typical 8 ohm nominal impedance, so you're loading your amp with 8 ohms per channel. Adding an additional pair will cut that impedance in half, making the amp work into 4 ohms per channel. Check the amplifier specifications, if it references power into 4 ohms, 4 ohm minimum load, or something similar, you will be fine. If it doesn't, you're asking for an overheat and possibly an amp failure.
March 11, 2013 @03:07am
cedrix2001

Adding an extra pair of speakers will make the amplifier work much harder. Many amps are capable of doing so, but you should be sure before you try.
You will need to know the impedance of your speakers, and the minimum drive impedance of the amplifier. It's really likely your speakers are typical 8 ohm nominal impedance, so you're loading your amp with 8 ohms per channel. Adding an additional pair will cut that impedance in half, making the amp work into 4 ohms per channel. Check the amplifier specifications, if it references power into 4 ohms, 4 ohm minimum load, or something similar, you will be fine. If it doesn't, you're asking for an overheat and possibly an amp failure.

Thanks, excellent, It make sense now, thanks again
March 11, 2013 @05:09am
perrychilds

If you want to do this right you need to make sure your amp is 4 ohm stable assuming you are going to run your speakers Parallel and assuming both speakers are 8 ohm
March 15, 2013 @03:53pm