The Marantz Model 33 is a vintage solid-state stereophonic console preamplifier produced by Marantz (then a subsidiary of Superscope in Sun Valley, California) from approximately 1970 to 1972.

This one has been gone thru, any questionable components have been changed out. All controls have been cleaned and lubricated. Looks, and operates wonderfully.

Key Specifications & Features

• Frequency Response: 5 Hz to 100 kHz • Total Harmonic Distortion (THD): 0.02% • Gain: 60 dB (Phono / MM), 20 dB (Line) • Input Sensitivity: 1 mV (Phono), 100 mV (Line) • Semiconductor Complement: 6 FETs, 52 transistors, 8 diodes • Dimensions & Weight: 15.75" W x 5.75" H x 8.75" D; weighs approximately 12 lbs • Chassis & Design: Features a champagne-colored front panel, slide-type volume, balance, bass, and treble controls for visual clarity, a tone-defeat switch, high and low filters, and an independent headphone amplifier with its own volume control. • Connectivity: Includes dual phono inputs, auxiliary inputs, tape monitor loops, a center-channel output with its own level control, and rear AC convenience outlets (5 switched, 1 unswitched). An optional wooden cabinet was also offered during its production run.