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Looking for an Audio Amp with about 25 watts per channel

transmaster

transmaster

AK Subscriber
Subscriber
I need some suggestions for an audio amp with about 25 watts per channel. This amp will be used with my amateur radios so superduper audiophile sound is not necessary. They don't even have to be stereo. The speakers this amp will be used with are my Optimus Pro-X5's which are rated for 30 watts max. It would be nice if they could handle RF at close range. I am looking over some of the choices at Parts Express sells and they sell some with Class D amps that would fit the bill. Advice???
 
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transmaster said:
That is exactly the one I was looking at over at Parts Express they have them for $18 USD each,
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If you get one, please give a review of it! I think they look really cool and want to get one but I am up to my ass in amps and just cant pull the trigger.
 
They sell this one over on Amazon and there seems to be a problem. If you can get one that has a real Tripath Amplifier chip (TA2020-020) the amp is great but there are numerous counterfeit Lepy amps for sale and you can't tell what you have until you get it in hand and look inside at the Chip. These are junk. Thank you Amazon reviews.
 
I would not be using one of those switching/class T amplifiers around amateur radio gear. They produce a phenomenal amount of RF noise that will likely cause you no end of trouble with the wideband front ends of your radios.

I tried a few on my test bench in the hopes I could use one as a compact amp for testing. You cannot use any sensitive test gear near them and expect low noise results.

Basically, they are a dirty little AM transmitter spread right across the spectrum. You'll need ferrite chokes on speaker leads and probably a metal can to put the whole thing in.
 
restorer-john said:
I would not be using one of those switching/class T amplifiers around amateur radio gear. They produce a phenomenal amount of RF noise that will likely cause you no end of trouble with the wideband front ends of your radios.

I tried a few on my test bench in the hopes I could use one as a compact amp for testing. You cannot use any sensitive test gear near them and expect low noise results.

Basically, they are a dirty little AM transmitter spread right across the spectrum. You'll need ferrite chokes on speaker leads and probably a metal can to put the whole thing in.
Click to expand...

Interesting we will see what happens, if it doesn't work out at least I don't have a lot of money into it. There is a tube type class A/B amp with 25 watts per channel which even has blue tooth connectivity I am looking at.
 
You really have to read those specs carefully. Many of those 25 watters really are rated at peak power with very high distortion. On the other hand a clean sounding 5 watt unit can surprise you. I have a treadmill sound system for my wife in the basement. Sony AM/FM tuner, a pair of realistic pro X7 speakers and a low power amp from Amazon, a Kinter 170 amp rated at 20 watts, but really about 8 watts per channel at 8 ohms. Cost 19 dollars and it does the job feeding background music daily without a hitch.

Have fun and 73's
 
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