I have an Arcam Black Box 1 which I think has great potential - and plenty of space to work under the hood - except I can't do this work personally.
I have a reference where a BB1 was upgraded in the following manner as seen below - does anyone know anyone that could competently do these upgrades (or similar) for me?
Converted to Non Over Sampling mode - removal of the noisy SAA7220P / B digital filter.
With the following High-End upgrades:
- Condensers Elna Red Cerafine, Panasonic Os-Con, Panasonic FC, WIMA, Kemet Tantalum;
- ultra fast Vishay diodes (25nS);
- Dale RN60D resistances (low noise and the best in terms of loudness);
- All voltage regulators replaced for low noise shunt type (NewClassD MKII UWB-2 and Belleson SPX);
- Circuit interconnection wiring replaced by Neotech, Ultra Pure Copper 7N Onho Continuous Cast (UP-OCC) with TEFLON insulation;