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Old 6th March 2009, 08:39 PM   #1
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Default is there a chip amp that will give me 50 watts of power

i am looking to build a chip amp that will power these speakers http://www.zaphaudio.com/BAMTM.html is there a chip amp that will give me 50 watts of power per chan
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Old 6th March 2009, 09:04 PM   #2
Nuuk is offline Nuuk  United Kingdom
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What is the impedance of those speakers?
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Old 6th March 2009, 09:10 PM   #3
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8 ohms
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Old 6th March 2009, 09:14 PM   #4
PSz. is offline PSz.  United States
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LM3886
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Old 6th March 2009, 09:16 PM   #5
Nuuk is offline Nuuk  United Kingdom
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Yes, an LM3886 based chip amp with a power supply or around +/-36 volts should do. You may even get away with an LM3875 too.
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Old 7th March 2009, 12:14 AM   #6
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thanks for all the help so far will this kit work http://www.chipamp.com/lm3886.shtml

LM3886 Amplifier Kit
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Old 7th March 2009, 02:04 AM   #7
mikje is offline mikje  United States
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merickrc,
I run a set of JBL L40 speakers, 8 ohm, from an LM3875 (56 wpc, I think). I am extremely pleased with this set-up . Plus, Peter Daniel (www.audiosector.com) was very helpful, very prompt with replies, while I was building the amp. I'd do another LM3875 without batting an eye .
Mike
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Old 7th March 2009, 02:39 AM   #8
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Merickrc, this speaker uses 2 8ohm woffers in parallel so it is
a 4ohm speaker.
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Old 7th March 2009, 03:10 AM   #9
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thanks for all the help
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Old 7th March 2009, 04:28 AM   #10
star882 is offline star882  United States
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Quote:
Originally posted by PSz.
LM3886
That's a pretty inefficient chip. A TDA8920B will easily handle over 50W per channel and is much more efficient. (Aside from lower operating costs, it also means a cheaper power supply and smaller heatsinks.)
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