New Hifisonix kx-Amplifier Update
There’s been lots more testing and sound evaluation going on with the new kx-Amplifier in the lab over the last few weeks. I’ve had it driving a pair of B&W 703’s (a hugely underrated speaker in my view and…
Ovation nx-Amplifier: A High Performance 100 W class AB Current Feedback Amplifier
This power amp design is based on the sx-Amplifier topology, but with the TIS and output stage re-configured for class AB operation, enabling it to deliver 100 W into 8 Ohms. I have kept the design very simple, retaining the…
CFA vs. VFA: A Short Primer For the Uninitiated
There are many explanations about IC CFA topologies like this or this. Some plunge into math, loop gain equations and so forth, leaving the reader none the wiser, while this one (equations 1~4 and associated gain plots)…
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