AMPEG SVT
User Guide

SVTDI Vacuum Tube Direct Injection
The Front Panel:

DIRECT TUBE

DIRECT TUBE

BALANCED OUTPUT

INPUT

THRU

0dB -6dB

GND LIFT

123

4

56

7

1. INPUT: Connect your line level signal here by means of a shielded signal cable terminated with a male 1/4� connector. 2. DIRECT/TUBE: This switch, when depressed, routes the input signal through the SVTDI�s tube stages before sending it to the Thru jack (#4). With this switch in the out position, the input signal is sent directly to the Thru jack, bypassing the buffer tube. 3. 0dB/-6dB: This switch, when depressed, attenuates the input signal by 6dB to compensate for active electronics or other �hot� input signals. With this switch in the out position, the input signal is at its full strength. 4. THRU: Use this jack to connect the output signal to its destination by means of a shielded signal cable terminated with a male 1/4� connector. 5. DIRECT/TUBE: This switch, when depressed, routes the input signal through the SVTDI�s tube stages before sending it to the Balanced Output jack (#7). With this switch in the out position, the input signal is sent directly to the Balanced Output jack, bypassing the buffer tube. 6. GND/LIFT: This switch, when depressed, lifts the signal ground at the Balanced Output jack (#7). This is helpful to eliminate hum in the output signal caused by ground loops. With this switch in the out position, the Balanced Output signal ground remains intact. 7. BALANCED OUTPUT: Use this jack to connect the output signal to its destination by means of a shielded signal cable terminated with a male XLR connector.
4