Yeah, but 30C/watt of thermal resistance is also concerning! If I am running 12W per Mosfet, does that mean these little vias run at 380C, assuming a 20C ambient temperature?
On closer inspection, space is quite a bit more limited than I originally suspected. I can drill out the current via and solder a 1.5 MM copper wire in place or leave it as it is. Thoughts on either option?
looks like the hole has area/surface equal to the copper line
if anything only the edges might cause problems
Well, you could argue that a lot people with high rail voltages and not enough heatsink are using this amp class a/b...
I don’t think the bass of this amp is particularly great and the rest is particularly lousy. I would more likely say it’s an amp that is more responsive to tuning (p3, bias, preamp matching) and psu (capacitance quality, chokes, etc) than most amps.
I don’t think the bass of this amp is particularly great and the rest is particularly lousy. I would more likely say it’s an amp that is more responsive to tuning (p3, bias, preamp matching) and psu (capacitance quality, chokes, etc) than most amps.
I am the OP on this thread and I know it's very old but I wanted to circle back. I never completed this build and the boards, PS, etc, are still on the shelf after 6 years. Unfortunately, life got in the way. I am now thinking about recycling the components into a 4-channel Firstwatt F5 amplifier v3. 25W x 4 to be used to drive 2-driver stereo speakers via an active crossover (digital signal processor). Doable? Will 4 channels fit in the DELUXE 4U ALUMINUM chassis?
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