New house, new adventures, new problems

[Brandon Hartwick]

@JonFo I'm just putting everything back to the way it was before, it sounded great and the single 21" subwoofer provides more then enough nuanced bass. 4 more subwoofers just add more complexity and more crossover points I don't really need, they also block my upstairs entrance in the living room.

 

[Brandon Hartwick]

Through the magic of 3D software, I have turned the 2D drawing of my First Watt amplifier into reality. I'm working on this while I wait for tube amp parts to arrive.

 

[john65b]

Nice. Do you have the sinks identified?

I have built a few First Watt amps as well as Pass Labs Aleph. Nelson is such awesome dude.

My latest F5 is a small-ish amp with higher rails (+/-30vdc) and uses a quiet SMPS instead of a Linear power supply. I biased it to the point where the sinks hit 140F, which is lower than 1.3 amp stock due to the smaller heat sinks. But at higher rail voltage (stock is +/-24vdc), it has more power, but the lower bias gets me less Class A in that power.

 

[Brandon Hartwick]

Nice. Do you have the sinks identified?

I have built a few First Watt amps as well as Pass Labs Aleph. Nelson is such awesome dude.

My latest F5 is a small-ish amp with higher rails (+/-30vdc) and uses a quiet SMPS instead of a Linear power supply. I biased it to the point where the sinks hit 140F, which is lower than 1.3 amp stock due to the smaller heat sinks. But at higher rail voltage (stock is +/-24vdc), it has more power, but the lower bias gets me less Class A in that power.

That's a nice little chassis, unfortunately mine won't fit into a package that small. The heat sinks i went with are 6" wide 3" deep and 10" tall, I will use 4 of them. They're actually a copy of what used used on the Musical Fidelity F15-F22 and I got them from eBay.

https://www.ebay.ca/itm/225286333193?_skw=heat+sink+class+a&itmmeta=01JK6FGNG933W7DKV7VFDZNMSJ&hash=item34741ca309:g:0xIAAOSwby5jkMQb&itmprp=enc:AQAJAAAA8HoV3kP08IDx+KZ9MfhVJKlmL/OpLxJP+vCpCYClLfpA2oOO6PGw/ObkBb/nr2RgmdHWvbkPK9Lfn5uosf0NQ0of0+dEC0G+CumdL2qu5li8DTmFjCb0usioIUTVcXpzLf8/+jULHfo/gF0GHFLpqDwiELfrNlFi6Xu0t0Ya9q30CG6CqFFgFXhMU0zYhsE7t8p/wrMl0qLoUfbWnEIXPo1b8hIM4W+SWCroG2WaQGBgtiZe8JtGWdqNTTIc6nqBQOepchI9i2hdNERFh/HdL7GFzBx6BrvbGos33HJF5Djk0FD3k2fv3RoIhJhlkms4ww==|tkp:BFBMpNjCz5ll