LCR Phono + Line Preamplifier
A full tube preamplifier with an LCR phono stage and a separate power supply.
This is the piece we build most. An LCR phono stage shapes the RIAA curve with inductors and capacitors instead of resistors, which keeps noise low and the sound open. One recent unit uses four E280F tubes in the phono section and two 6J5 in the line stage, with Tamura and ISO/Tango transformers in the signal path and in the power supply. The supply lives in its own chassis, joined by a single cable, so the sensitive audio circuit stays quiet.
- Phono EQ
- LCR RIAA network, ISO/Tango or Tamura EQ coils
- Phono tubes
- E280F ×4, or 12AX7/12AU7 for easy tube rolling
- Line stage
- 6J5 ×2, or DHT on request
- Cartridges
- MM direct; MC through step-up transformer
- Volume
- Stepped attenuator; remote option
- Power supply
- Separate chassis, tube rectified
- Chassis
- Metal on walnut, teak or other Thai hardwood
Includes all tubes and the umbilical cable.
From your room to your rack
01Your room
We start with your speakers, your room and the music you play, then draw the circuit around them.
02Chassis and wood
Panels are cut, drilled and engraved here, and the frame is made from Thai hardwood.
03Hand-wiring
Every joint is wired and soldered by hand, point to point. You get photos as it comes together.
04Burn-in and listening
Each build runs for days on the bench and is measured and listened to before it ships.
EssentialEssential LCR Phono Stage
Our LCR phono sound with EQ coils wound in Thailand, in two chassis with a separate power supply.
EssentialEssential Line Preamplifier
A simple tube line stage with two inputs. Adds warmth and drive to any system.
EssentialEssential Two-Chassis Line Preamp
A tube line preamplifier with its power supply in a separate chassis, for a quieter background.