LS 36.5

About the LS 36.5

The ModWright Instruments LS 36.5 is a premium tube linestage preamplifier designed to deliver exceptional sonic performance. It features true balanced outputs and XLR inputs, making it versatile for various HiFi setups. The preamp includes remote volume control and phase switching, enhancing user convenience. It uses two 6H30 Russian Super Tubes and one 5AR4 rectifier tube, providing a robust and detailed soundstage. The LS 36.5 offers a gain of 12dB, an input impedance of 50Kohm, and an output impedance of 110 ohms, ensuring compatibility with a wide range of amplifiers. Its bandwidth spans from 20Hz to 100kHz +/- 1dB, and it boasts a signal-to-noise ratio of -125dB. The preamp is built with high-quality components, including proprietary custom-designed capacitors, and features a choke-loaded power supply with discrete constant current-sourced B+ regulators. It operates in pure Class A, cathode-biased gain stage with a Mu gain/buffer stage and zero feedback. The LS 36.5 is no longer available for purchase but remains notable for its superior performance and craftsmanship.