Modwright LS 36.5 DM

Audiophile Tube Preamp

The Modwright LS 36.5 DM takes the performance of the LS 36.5 to the next level by adding the PS 36.5 dual-mono, all-tube external power supply. This PS 36.5 features a complete dual-mono topology, including dual tube rectifiers and tube voltage regulation circuitry.

Other features include true balanced inputs and outputs, refinements in power supply design, voltage regulation, and driver circuit design all serve to raise the bar. Refinements in grounding, transformer coupling and shielding also yield a 2 x lower noise floor than its predecessor!

LS 36.5 DM Features

• One set of XLR inputs
• Four sets of RCA inputs
• Two sets of RCA Main Outputs
• One set of RCA Tape Outputs
• One set of XLR balanced outputs
• Front Panel controls include: Power, Input Select and Mute, Phase (also on remote), HT/BP
• (Home Theater Bypass) and volume control (also on remote)
• Custom MWI remote control for volume, phase and mute

Technical Specifications

• Tube complement: (2) 6H30 Russian Super Tubes, (1) 5AR4 rectifier
• Tube rectified power supply
• Gain: ~12dB
• Input Impedance: 50Kohm
• Output Impedance: 110ohm
• Frequency Response 20Hz – 100Khz +/-1dB
• Noise Level: -125dB
• Choke loaded power supply
• Discrete Constant Current Sourced B+ regulators
• DC heaters
• Gain Stage: Pure Class A, cathode bias ‘Mu’* gain/buffer stage with zero feedback
• Power sequence: Mute delay turn on sequence with soft start for improved tube life
• Volume Control: remote control Alps motorized volume control
• Dimensions: 17-1/2″W x 12-1/2″D x 4-3/4″H
• Weight: 27 lbs. (30 lbs. shipped)