So after much research, reading and planning, I have started my 3 chassis build. The build will consist of three seperate boxes: one power supply box, one balanced EHHA box, and one B22 box. Here are some overall rough details of the three units:
Power supply:
EHHA:
B22:
Amphenol/Speakon umbilicals will be used between the units. And I am planning to go with Hifi2000 slim line cases with 10mm front panels (all black). At this moment I am not going to setup either the EHHA or B22 to be able to power speakers directly. I will likely use either my Rotel amp or perhaps look at the B24 or a Firstwatt DIY amp build. This is by far and away the most complex build I have done, but I am pretty excited about it.
Feel free to shoot me any advice along the way.
Power supply:
- Dual-mono sigma22
- 2 x Sumr 120VA fully encapsulated transformers
- 1 x Sumr 50VA toroid transformer (heater supply)
- 1 x Sumr 30VA toroid transformers (misc other devices)
- Glassware H-PS-1 12.6V heater regulator
- 2-3 e12 switch boards
EHHA:
- 4 x EHHA boards MOSFET configuration (balanced setup)
- Joshua Tree balanced attenuator
- Goldpoint rotary selector switch
- Will be able to power 6H30 tubes
B22:
- 4 x B22 boards for balanced setup
- Fairly standard build with few boutique parts
- Joshua Tree balanced attenuator
- Goldpoint rotary selector switch
- Setup for preamp capabilities
Amphenol/Speakon umbilicals will be used between the units. And I am planning to go with Hifi2000 slim line cases with 10mm front panels (all black). At this moment I am not going to setup either the EHHA or B22 to be able to power speakers directly. I will likely use either my Rotel amp or perhaps look at the B24 or a Firstwatt DIY amp build. This is by far and away the most complex build I have done, but I am pretty excited about it.
Feel free to shoot me any advice along the way.