BV120H All Tube Guitar Amplifier
The Front Panel:
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1.POWER: This switch applies AC volt- age to the amplifier, and should always be turned on first. The switch illuminates when the AC power is on.
2.STANDBY: This switch activates the amplifier, and should always be turned on last. The switch illuminates when the high voltage power is passing through to the tubes.
NOTE: When you first power up this amplifier, leave the Standby switch OFF for at least 20 seconds. This gives the power tubes a chance to prepare themselves for action.
3.PRESENCE: Increase the level of upper harmonics with this control. The presence control allows a boost of up to 5dB at 10kHz.
4.EFFECTS LOOP PAD: This switch activates a 12dB pad on the effects send signal and corresponding gain recovery on the return. In the out position the signal is full strength which is best suited for line level rack mountable effects. With the switch depressed the signal is lower which is best suited for foot pedal type effects.
5.EFFECTS LOOP SWITCH: This switch controls the effects return signal of the effects loop. The loop is only active when the switch is pressed in. When a footswitch is used, this switch is disabled. The adjacent yellow LED illuminates when the loop is in use.
6,7. REVERB 2, REVERB 1: Adjust the amount of reverberation on each channel with these controls: at the "0" position the signal is "dry" (no reverb). As you rotate the control clockwise, the amount of reverb increases.
Channel 2:
8.LEVEL: Set the output signal level of channel 2 with this control. At the "0" posi- tion (full left) very little or no signal will be heard; as you rotate the control clockwise (towards center) the output level of chan- nel 2 increases. Use this control along with your guitar's volume and the channel
2gain control (#12) to produce a wide variety of sounds.
9.BASS: Adjust the bottom end response with this control. The low control covers a range of 15dB at 100Hz. This sets the amount of bass heard (and felt) from the amp.
10.MID: Adjust the midrange response with this control. The mid control covers a range of 13dB at 500Hz. This controls the “voice” of your guitar.
11.TREBLE: Adjust the high end response with this control. The high con- trol covers a range of 10dB at 10kHz. This controls the “bite” of your guitar.
12.GAIN: Adjust the overdrive (distortion) level with this control. With the control towards “0” (to the left) the signal is rela- tively clean. As you rotate the control clockwise the distortion increases, along with the overall output level. Rotate the control towards “10” and you’ll increase the distortion even more.
13.CHANNEL SELECT: Switch between channels with this
Channel 1:
14.BASS: Adjust the bottom end re- sponse with this control. The low control covers a range of 16dB at 100Hz. This sets the amount of bass heard (and felt) from the amp.
15.MID: Adjust the midrange response with this control. The mid control covers a range of 20dB at 300Hz. This controls the “voice” of your guitar.
16.TREBLE: Adjust the high end response with this control. The high con- trol covers a range of 10dB at 10kHz. This controls the “bite” of your guitar.
17.LEVEL: Set the output volume level of channel 1 with this control.
18.INPUT: Connect your guitar or wire- less receiver into this standard 1/4" jack by means of a shielded instrument cable.
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