Traverse 652 User Manual

Dual-channel vacuum tube preamplifier

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652: Dual-Channel Vacuum Tube

Preamplifier

User Manual

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Summary of Contents for Traverse 652

Page 1 652: Dual-Channel Vacuum Tube Preamplifier User Manual...
Page 2 During the warranty period of 2 years from original date of purchase, with proof of purchase, Traverse Analogue will at no additional cost, repair or replace defective parts with new parts. This warranty does not extend to any unit that has been damaged or rendered defective because of accident, misuse, or abuse;...
Page 3 II. SAFETY PRECAUTIONS Before using this unit, be sure to carefully read the applicable items of these operating instructions and the safety precautions. Afterwards, keep them handy for future reference. Take care to follow the warnings indicated on the unit, as well as in the operating instructions. 1.
Page 4 III. TABLE OF CONTENTS THE 652: AN OVERVIEW SPECIFICATIONS OPERATION & CONTROLS 3 - 4 POWER REQUIREMENTS & MAINTENANCE...
Page 5 How about the creamy saturation of an esoteric vintage preamplifier? The 652's gentle drive characteristics allow for a broad tonal palette, depending on the gain selection and how hard you hit it with signal. It can be used with all types of microphones (including ribbons) and the line level input pad allows you to add warmth and coloration to any track from a digital audio workstation.
Page 6 SPECIFICATIONS Input Impedance Noise Factor 300 ohms, 1200 ohms (Mic) 5 dB ref 150 ohms (20Hz - 20kHz) 15K ohms (Line) 4.7 Meg ohms (1/4” DI) THD+N +2 dBu to +18 dBu, 0.03% to 2% Maximum Input Level +6 dBu (XLR, 1200R) VU Meter Calibration -8 dBu (1/4”...
Page 7 OPERATION & CONTROLS The toggle switches are in their default setting when positioned “down” as shown. GAIN (dB) - A 12-position rotary switch controls the gain. With the MASTER control at maximum, the net gain will be adjustable from 5dB – 60dB in 5 dB steps (XLR, 1200R). VU METER - A Sifam VU meter allows for traditional monitoring of the signal.
Page 8 The center portion of the front panel is divided between both channels. The two left-hand toggle switches are for the left channel, and the two right-hand switches are for the right channel. The toggle switches are in their default setting when positioned “down” as shown. POWER - This switch turns the preamplifier on and off.
Page 9 20MM 250VAC 1A Slow-Blow. If this occurs, please check with a qualified technician. NOTE: The 652 utilizes various control circuitry, including a gradual ramp of the supply rails and an output-muting relay. It is normal for the 652 to take approximately 30 seconds of warm up time before any signal can pass.