...We are talking bridged here, yes?...
It would be a good idea to match the devices in the two halves. This would reduce a great deal of the relative DC offset.
The absolute DC offset won't matter as long as you've got the same value on each side--just don't short the output to ground.
Keep in mind that some versions of the Zen take their
feedback after the output cap, and if you eliminate
the output cap, you will want to AC couple the feedback
resistor.
OK, that answers that. I was going to use the new active current source, as in the alephs. If I bridge two channels, will it be able to drive a 4 ohm speaker, or will it be too low of an impedance?
You can drive 4 ohms, just at higher distortion than
with 8. Also, you can start cranking up the bias.
With Part 4, the high input impedance will allow you
to parallel whole Zen amps to get the high current
without loading down the source, and this works
quite well.
Sounds excellent! I can't wait! So, will this Zen in part 4 be exactly like the Aleph series from Pass Labs, or is it just really similar? It really is great of you to be so generous with your designs. I know it has been said many times, but Thank you.
Steve
