Here's an interesting little thing I found on Amazon. I don't know anything about it, but I thought I'd ask in case anyone does.
http://www.amazon.com/exec/obidos/t...02349-2568647?v=glance&s=electronics&n=537344
It's a digital amp, but I can't tell what kind of chip it uses.
Best,
KT
http://www.amazon.com/exec/obidos/t...02349-2568647?v=glance&s=electronics&n=537344
It's a digital amp, but I can't tell what kind of chip it uses.
Best,
KT
Here's a direct link to the amp on Ramsey Electronics:
http://www.ramseyelectronics.com/cgi-bin/commerce.exe?preadd=action&key=UAM2
It kind of reminds me of that LM1875 kit that's out there. It was basically a board and parts kit based on the LM1875 datasheet circuit, but didn't seem to make a big splash in the Gainclone community.
I wonder if this digital amp kit is the same, or if it's really something better.
Anyhow, it looks like only one channel and costs just as much or more that a new Sonic Impact 5066.
KT
http://www.ramseyelectronics.com/cgi-bin/commerce.exe?preadd=action&key=UAM2
It kind of reminds me of that LM1875 kit that's out there. It was basically a board and parts kit based on the LM1875 datasheet circuit, but didn't seem to make a big splash in the Gainclone community.
I wonder if this digital amp kit is the same, or if it's really something better.
Anyhow, it looks like only one channel and costs just as much or more that a new Sonic Impact 5066.
KT
According to UAM2 manual - it uses a 20W "Mono, High Power, Filter-Free Class-D Audio Amplifier" Texas Instruments TPA3001D1 chip
Evaluation board (fully assembled) can be bought from TI for $49 - seems like a better deal (all the soldering of SMT parts already done)
This is a so called "filterless" class D chip - no need for large output inductors because the module is meant to sit close to the speaker - short speaker leads= low EMI emissions?
Has anybody any ideas on how effective filterless class D chips are - after all a major source of distortion is supposedly eliminated/reduced i.e output inductors
John
Evaluation board (fully assembled) can be bought from TI for $49 - seems like a better deal (all the soldering of SMT parts already done)
This is a so called "filterless" class D chip - no need for large output inductors because the module is meant to sit close to the speaker - short speaker leads= low EMI emissions?
Has anybody any ideas on how effective filterless class D chips are - after all a major source of distortion is supposedly eliminated/reduced i.e output inductors
John
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