Crate Amplifiers owner manual BV-50H Guitar Amplifier Front Panel, Channel

®BV-50H Guitar Amplifier

The Front Panel:

1.INPUT: Connect your guitar or wireless receiver into this standard 1/4" jack using a shielded instrument cable.

Channel 1:

2.VOLUME: Set the output volume level of channel 1 with this control.

3.LOW: Adjust the bottom end response with this control. The low control covers a range of 16dB at 100Hz.

4.MID: Adjust the midrange response with this control. The mid control covers a range of 23dB at 300Hz.

5.HIGH: Adjust the high end response with this control. The high control covers a range of 25dB at 10kHz.

6.CHANNEL: Switch between channels with this push-button switch. The adjacent amber LED glows when channel 1 is selected (switch "out"), the red LED glows when channel 2 is selected (switch "in"). When a footswitch is used for channel switching, this switch is dis- abled.

Channel 2:

7.GAIN: Adjust the overdrive (distortion) level with this control. In addition to gain changes, this control also modifies the tone. At low and mid gain settings the overdrive is very bluesy. Reducing the volume at the guitar cleans up the signal to be similar to Channel 1. However, at high gain settings the guitar signal is contoured to add punch in the middle frequencies for a thick, heavily saturated overdrive.

8.LOW: Adjust the bottom end response with this control. The low control covers a range of 6dB at 100Hz.

9.MID: Adjust the midrange response with this control. The mid control covers a range of 13dB at 700Hz.

10.HIGH: Adjust the high end response with this control. The high control covers a range of 12dB at 10kHz.

11.MASTER: Set the output signal level of channel 2 with this control. At the "0" position (full left) very little or no signal will be heard; as you bring the control up (towards center) the output level of channel 2 increases. Use this control along with your guitar's volume and the Gain control (#7) to produce a wide variety of sounds.

12.REVERB: Adjust the amount of reverbera- tion with this control: at the "0" position the sig- nal is "dry" (no reverb). As you bring the control up, the amount of reverb increases.

13.PRESENCE: Increase the level of upper harmonics with this control. The presence con- trol allows a boost of up to 5dB at 10kHz.

14.STANDBY: This switch activates the ampli- fier, and should always be turned on last. The switch lights up 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.

15.POWER: This switch applies AC voltage to the amplifier, and should always be turned on first. The switch lights up when the AC power is on.

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