LS-7B Tube Pre-Amplifier - circuit reference to classic M7 - with remote control

This pre-amp is modified from classic Marantz 7 pre-amp. The main circuit uses 2 x 12AX7 and 1 x 12AU7. We used a cathode follower to lower the output impedance. It including a tube high voltage regulator and rectify , with time delay circuit and a heater voltage regulator. Also, digital remote volume controal and input select is included.

- 100W R-core audio grade transforer for main circuit

- 40W EI transformer for remote control circuit

- 0dB ~ 99dB 100 step volume control

- LED display

- RCA input x 4, RCA output x 1

- Remote control included (for input select and volume control)

- Aluminum panel steel chassis

- Sweetie Vocal sound with air details

- Dimension: 430mm(W) x 100mm(H) x 330mm(D)

- Weight: 8kgs(Net)

- AC110V (we can make 230V version, please mention the voltage you need)