Crate Amplifiers owner manual GT-80D QuadraDrivetm, Overdrive Channel, Clean Channel

GT-80DQuadraDrivetm

9:CLEAN LED: This LED glows green when the Clean Channel is chosen, and along with LED #19, gives you a visual sign that the Clean gains, tone controls and volume control are active.

10:SOLID STATE GAIN: This serves as the gain control for the Clean Channel’s Solid State preamp section. Use this control along with the Clean Channel’s volume control (#20) to create a wide variety of sounds at any volume level. (Some suggested settings can be found on pages 12 and 13.) With the control to the full-left position, no sig- nal passes through. As you bring the control to the right you increase the signal level, which stays clean all the way up to the full-right position.

OVERDRIVE CHANNEL:

11:LOW: Adjust the Overdrive Channel’s low frequency output with this control: the center position is “flat,” that is, no boost or cut. By turning the control to the left you reduce the low frequency output; turning it to the right increases the low frequency output. The Low control covers a range of 24dB at 100Hz.

12:MID: Adjust the Overdrive Channel’s midrange output with this control: in the center position the midrange out- put will be “flat” (no boost or cut). Turning the control to the left reduces the midrange output; turning it to the right increases the midrange output. The Mid control covers a range of 10dB at 1kHz, which affects the “voice” of your guitar’s sound.

13:HIGH: Adjust the Overdrive Channel’s high frequency output with this control: in the center position the high frequency output will be “flat” (no boost or cut). Turning the control to the left reduces the high frequency output; turning it to the right increases the high frequency output. The High control covers a range of 20dB at 5kHz, which allows you to adjust the crispness or the “bite” of your guitar.

14:OVERDRIVE LED: This LED glows red when the Overdrive Channel is chosen, and along with LED #3, gives you a visual sign that the Overdrive gains, tone controls and volume control are active.

15:VOLUME: Adjust the output level of the Overdrive Channel with this control: in the full-left position there is no output. As you rotate the control to the right you increase the strength of the Overdrive Channel’s signal going into the power amp, thus increasing the output volume. The signal level for the Line Out jack (see #32, rear panel) is simultaneously affected by this control.

CLEAN CHANNEL:

16:LOW: Adjust the Clean Channel’s low frequency output with this control: the center position is “flat,” that is, no boost or cut. By turning the control to the left you reduce the low frequency output; turning it to the right increases the low frequency output. The Low control covers a range of 23dB at 100Hz.

17:MID: Adjust the Clean Channel’s midrange output with this control: in the center position the midrange output will be “flat” (no boost or cut). Turning the control to the left reduces the midrange output; turning it to the right increases the midrange output. The Mid control covers a range of 14dB at 800Hz, which affects the “voice” of your guitar’s sound.

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