Crate Amplifiers KXB50 User Manual download pdf (Page 3)

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1. INPUT 1: Use this 1/4” jack to connect your key-

board or other line level signal to the amplifier by

means of a shielded instrument cable. The signal

level at this jack is controlled by the Level 1 knob (#3).

2. INPUT 2: Use this 1/4” jack to connect your key-

board or other line level signal to the amplifier by

means of a shielded instrument cable. The signal

level at this jack is controlled by the Level 2 knob (#4).

3. LEVEL 1: Use this control to adjust the level of the

signal connected to the Input 1 jack (#1).

4. LEVEL 2: Use this control to adjust the level of the

signal connected to the Input 2 jack (#2).

5. PEAK: This LED illuminates when the input signal

level nears clipping. For the best signal to noise ratio,

adjust the Level controls until this LED flashes on

strong signal peaks.

6. LOW: Use this control to adjust the bass response

of the amplifier. Rotating the control counterclockwise

reduces the low frequency output. Rotating the con-

trol clockwise increases the low frequency output.

7. LO MID: Use this control to adjust the “thickness”

or “fatness” of the amplifier. Rotating the control coun-

terclockwise reduces the lower midrange frequency

output. Rotating the control clockwise increases the

lower midrange frequency output.

8. HI MID: Use this control to adjust the clarity and

definition of the amplifier. Rotating the control coun-

terclockwise reduces the upper midrange frequency

output. Rotating the control clockwise increases the

upper midrange frequency output.

9. HIGH: Use this control to adjust the high frequency

response of the amplifier. Rotating the control coun-

terclockwise reduces the high frequency output.

Rotating the control clockwise increases the high fre-

quency output.

10. REVERB: Use this control to adjust the amount of

reverberation added to the signal. With the control

fully counter clockwise, the signal is dry - no reverb

added. As you rotate the control clockwise the

amount of reverb added increases.

11. LEVEL: Use this control to adjust the overall out-

put signal of the amplifier.

12. LIMIT: The KXB50 employs an internal limiter cir-

cuit to help prevent overdriving the output signal. This

LED illuminates when the limiter circuit is activated.

During normal playing conditions, this LED will flash

occasionally. If this LED remains illuminated, reduce

the level controls.

13. CD INPUT: Use these RCA jacks to connect the

output from a CD player or tape deck to the amplifier.

The signal at these jacks is combined into a mono sig-

nal which is sent to the internal power amp circuit.

Use the CD or tape player’s output level control to

adjust the signal for the proper mix with your instru-

ment.

14. INSERT: Use this jack to connect external effects

to the amplifier. This is a stereo R/T/S 1/4” jack: ring =

line out, tip = line in, sleeve = ground. This jack can

also provide a line out signal - insert a mono T/S 1/4”

plug half way into the jack to obtain the signal. (This

will not interrupt the signal going into the internal

power amp.)

15. (HEADPHONES): Use this jack to connect

headphones to the amplifier. The internal speakers

are disconnected when this jack is used.

CAUTION: To avoid possible damage to your

hearing, do not use headphones for extended

periods of time at extremely loud levels.

16. ON: This LED illuminates when the amplifier is

turned on.

17. POWER: Use this switch to turn the amplifier on

(top of the switch depressed) and off (bottom of the

switch depressed).

18. POWER CORD (rear panel, not shown): The

grounded power cord should only be plugged into a

grounded power outlet that meets all applicable elec-

trical codes and is compatible with the voltage, power,

and frequency requirements stated on the rear panel.

Do not attempt to defeat the safety ground con-

nection.

KXB50 Keyboard Amplifier

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Crate Amplifiers KXB50 User Manual Page 3

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