Owner’s Manual Welcome! Welcome! Table of Contents Thank you for your investment in the Herron Audio VTSP-3 Vacuum Tube Stereo Preamplifier, a milestone in high-precision audio playback equipment. Introduction The VTSP-3 is a new design, benefiting from insights gained during continu- ous refinement of the highly-praised and award-winning VTSP-2.
Note: When the invert mode of the switch on the back panel for revers- nient operation of many of the At startup the display on the VTSP-3 VTSP-3 is switched, the unit automati- ing the power line polarity preamplifier’s front-panel functions.
If the power outage is brief, the unit • Unity gain pass-through function-initiated by holding video button The VTSP-3 has an instant shut- will mute and wait 10 to 15 seconds down circuit that mutes the output to unmute when the power is •...
Note: Since the volume control is a The amber “Invert” light indi- The VTSP-3 has two gain modes for control after the unit has gone stepped attenuator the individual cates that the preamplifier is in system matching.
VTSP-3 Vacuum Tube Stereo Preamplifier Owner’s Manual Power Line Polarity Switch Inputs The amber “Tape” light indicates be initiated or disengaged from the that the tape input has been selected. front panel or the remote control. This switch selects the power-line...
1. Position the unit in a well-ven- nents. • Aux cannot be operated from the tilated area on a firm, stable 7. Power up the VTSP-3 by switch- • CD remote control. surface, away from equipment ing on the power switch.
CAUTION ! ! ! ! ! When changing tubes, the VTSP-3 should be unplugged and left off for a minimum of 30 minutes prior to opening the unit to insure that haz- ardous voltages in the power supply have time to discharge before entering the unit.
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