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I have a little bit of bad news for everyone... I tried listening to this amplifier without it being plugged into my power conditioner... It loses the magic. But that's true with all amplifiers. Trouble is it loses too much.Looks like I might have to develop a linear supply that can provide comparable results without a conditioner (have it built in). Such as it goes... not a big surprise since I've never heard an SMPS sound very good in anything non-constant current supplied; baring a good power conditioner.
I'll give it a try, but I'll be very surprised if it's too much better. I can tell you the 3875 amplifier can't come even close with a nice linear PSU and power conditioning.
... You could buy $1200 3875 monoblocks that sound like a dead dog fart compared to the TDA7297,
So far from comparisons the general feedback is the 7297 has a more impressive soundstage but the 3116 sounds more refined to some with better top end. Granted the TPA3116 boards are a whopping $20-28 compared to the $6 7297, but it's certainly worth comparing.
Oh good, maybe I'll just wait for word from you. The surface mount parts don't look as fun to work with, but who knows on sound. rhing are you going to try battery?
I am getting some noise with TPA 3110 also when I connect it to a pre-amp. It is dead silent when it is connected to an Apple AirportExpress. I have not been able to figure it out yet.
Here's a clear board, I've labeled the R and L inputs, and their grounds. R1, D1, D2, C1, C2, C3, C5, CN4, and RP 50k have been removed. Install a wire for the bypass of the diode (D2), I did this on the bottom.....Use only DC power supply after removing the diode.
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