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DIY First Watt F4 + BA3FE preamp

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DIY First Watt F4

For sale is my F4 power amp.
I built the PSU with higher rail voltage than standard to increase the output power. Here are the details:

F4:
- hifi2000 deluxe 5U case 450x400x210 mm.
- heavy duty 40mm rubber feet for good ventilation
- 600VA audio grade toroidy transformer 230 primary 2x24VAC secondaries
- CRC PSU with 8x27000u/50 panasonic 105º panasonic TSHA capacitors
- VDC is 30V when biased
- JFets removed from the circuit (aka Crippled F4, not necessary with the BA3FE preamp), I can install these if requested at no extra cost.
- 16W (0,55A) bias per mosfet giving roughly 40W class A @ 8ohm and around 100W in class AB

Price: 600€, shipping should be around 100€ for most countries in europe.

Any questions don't hesitate in sending me a message.

Manuel

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