A guide to building the Pass F4 amplifier

Send me your shipping address and I'll send you the Harris triplet.

Package from Mr. Harris arrived! 😆

After cooking for a couple of hours i now have 212-228mV on all 12 critters. Sub mV offset.

Thank you Pa! :worship:
 

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Got my BA-3 and Whammy up and running and they sound great! Still chip rolling, but the two are great with my DT-1990 and Clear MG.

As I finished stuffing my F4, the 4U chassis arrived! I gotta say, it's a much tighter fit than I was expecting. I'm thinking about splitting the PSU board so the transformer can be centered. Wiring will be...fun...XD
 

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Did you try to place the toroid in a upright position? With te cap-bank turned 90° you‘d get a symmetrical arrangement, And you would have all in 1 chassis. Not sure about switch, led, and rectifiers though…

Here’s mine, 4u 300 mini… (toroid laying around under the capbank 🙂 )
 

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you have myriad of pics, taken from Kosher builds

if you keep it symmetrical, no troubles

xformer all the way up to front plate , then bridges then Cap Bank centrally

equal length of power wires to channels, easy arrangement of signal wires to avoid ground loops

as I'm always saying - if in doubt - look at original FW pics - plenty of those around

6moons site, for example - almost every FW amp covered with high res content
 
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