Ampeg SVP-PRO manual Front Panel

1.INPUT: Use this jack to connect your bass to the preamp by means of a shielded instrument cable.

2.MUTE: This switch, when depressed, mutes the signal at all output jacks except the Tuner Out jack (#27).

3.PAD: This switch, when depressed, attenuates the input signal by 15dB. If your bass has active pickups, depress this switch to better accommodate its output signal.

4.GAIN: Use this control to adjust the level of the input signal. When properly set, the Peak LED (#5) will flash on strong sig- nals. For the best signal to noise ratio set the Gain control to the highest useable set- ting and adjust the Drive and Master con- trols (#8, 18) to obtain the desired output level.

5.PEAK/MUTE LED: This LED illuminates when the preamp signal approaches clip- ping. When the Mute switch (#2) is engaged, this LED stays on as a visual indicator that the Mute function is active.

6.BRIGHT: This switch, when depressed, boosts the upper mid and high frequencies.

7.ULTRA LO: This switch, when de- pressed, provides emphasis to the low end by boosting the low frequencies and cutting the mid frequencies.

8.DRIVE: Use this control to adjust the level of the distortion. In the fully counter- clockwise position the preamp is in the cleanest, traditional SVT condition. As the control is rotated clockwise, the distortion level is increased. The tone of the signal is also changed to provide a smoother over- drive. The tone controls may have to be readjusted to obtain the desired tone. The Gain control (#4) and Pad (#3) interact with the Drive control. For greater overdrive, the Pad switch (#3) should be out and the Drive control should be rotated fully clock- wise. Use the Gain control (#4) to set the amount of overdrive desired. The Peak LED (#5) will remain illuminated when the amplifier is used in this manner.

9.BASS: Use this control to adjust the low frequency output level. This control pro- vides 12dB of cut or boost at 40Hz.

10.MIDRANGE: Use this control to adjust the mid frequency output level. This control provides 15dB of cut or 12dB of boost at the frequency selected by the Frequency control (#11).

11.FREQUENCY: Use this control to select the center frequency for the Midrange control (#10). The center fre- quencies are 220Hz, 450Hz, 800Hz, 1.6kHz, and 3kHz.

12.TREBLE: Use this control to adjust the high frequency output level. This control provides 12dB of cut or boost at 4kHz.

13.GRAPHIC EQ: This switch, when depressed, activates the Graphic EQ. (When using a footswitch, #23, to control the Graphic EQ, this switch must be depressed.)

14.ULTRA HI: This switch, when depressed, boosts the frequencies above those affected by the Bright switch (#6).

15.GRAPHIC EQ : Use these controls to adjust the amplitude of the signal at the fre- quency stated above each slider.

16.GRAPHIC EQ LEVEL: Use this control to adjust the overall output level of the Graphic EQ.

17.GRAPHIC EQ ACTIVE/PEAK LED: This LED illuminates yellow when the EQ section is active. This LED will flash when the amplitude of the Graphic EQ signal approaches clipping.

18.MASTER: Use this control to adjust the overall output signal level.

19.POWER INDICATOR LED: This LED illuminates green when the preamp is on.

20.POWER: Use this switch to turn the preamp on (side of switch with the dot depressed) and off (side of switch without the dot depressed).