Although it’s in constant change, here is a brief summary of my current system
Power amplifier
For the time being, I’m using an 814 (triode-strapped) single ended amplifier with the following key features:
- 100% DHT – drivers and output valves
- 12W output power @ THD=1%
- DC coupled
- Output valves: 814 triode strapped
- Rod Coleman regulators
- 46 (triode-strapped) driver with filament bias
- Filament and HT supplies LCLC
- Custom made power transformers and output transformers
- Lundahl iron and Input Transformer
- ASC Oil Caps for filtering bank
- Quite a big monster amp!
Pre-amplifer & Line stage
For CD preamp, I’m using a 01a DHT preamp, for line-stage and driver of the AVC, I’m using my well-known Siberian 4P1L DHT stage:
- DHT triode stage
- Filament supplies using Lundahl iron and custom power transformer with split bobbins and EPCOS caps
- Rod Coleman filament regulators
- Filament bias
- Shunt regulator for HV (4P1L only)
- Hybrid gyrator load for CX301a with output Russian teflon cap
- RIAA phono stage goes directly to 4P1L
- CD Discrete DAC goes via 01a preamp into the 4P1L
AVC
- 28 step attenuator
- From 0dB to -52dB in 2dB steps
Turntable
- Restored original GL75 Lenco
- Audiomods arm
- DL103a cartridge
- RIAA phono stage: folded JFET cascode 60dB gain
CD Transport and DAC
Starlight CD transport with I2S output, discrete DAC designed by Tom Browne
Speakers
FE167e full-range speakers with FT-96H horn tweeters and custom-made crossover