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Old 16th October 2012, 08:07 PM   #1
H3x0S is offline H3x0S  Croatia
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Default Best amplifier board (100W + 100W) (<50$)

What's the best 2x100W amplifier board for under 50$?
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Old 16th October 2012, 10:44 PM   #2
mikje is offline mikje  United States
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I don't know what shipping would cost and you'd need a power supply, but this amp seems like a decent one within your cost constraint.
2x100W @ 4 Ohm TK2050 Class-D Audio Amplifier Board Only 320-334
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Old 17th October 2012, 12:09 AM   #3
H3x0S is offline H3x0S  Croatia
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I would prefer eBay.
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Old 18th October 2012, 10:08 AM   #4
neilmc is offline neilmc  Australia
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Quote:
Originally Posted by mikje View Post
I don't know what shipping would cost and you'd need a power supply, but this amp seems like a decent one within your cost constraint.
2x100W @ 4 Ohm TK2050 Class-D Audio Amplifier Board Only 320-334
Mike
It'd be OK, but not realistically 2x100w. It's one of the Sure Electronic boards and at 100w 10% THD.

Within that budget I'd go more towards:

2 Channel 250Watt Class D Audio Amplifier Board IRS2092 250W Stereo Power Amp | eBay
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Old 18th October 2012, 11:13 AM   #5
wwenze is offline wwenze  Singapore
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Depends on what power supply you have.

If you don't already have a power supply, a 200W PSU with the required voltage(s) will add a considerable amount of cost relative to that $50. A 50Hz transformer with huge capacitors will cost much more than $50. Also high voltage PSUs are more expensive, so are PSUs with both +V and -V out.

Tripath amps can run from a single-polarity power supply and being bridged they need less power supply voltage for the same output power compared to non-bridged amps. Hence the flooding of low-end market.
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Old 18th October 2012, 05:05 PM   #6
H3x0S is offline H3x0S  Croatia
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High End Quality TDA8950 Class D Audio Power Amplifier Amp DIY Assembled Board | eBay

What exactly would I need to get this amplifier to work with my speakers? Voltage input would be 220V/50Hz.
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