Peavey KB-400

KB-400
Keyboard Mixer/Power Amp
Operators Manual
^S-400
WARNING
TO PREVENT ELECTRICAL EHOCK OR FIRE HAZARD. OO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
BEFORE USING THIS APPLIANCE READ BACK COVER FOR FURTHER WARNINGS.
FftOMT PANEL-
High Gain ln[iul [A]
Provided for instruments that have low gain (ie: Rhodes Piano}. It is 10 dB) louder than the Low Gain input.
Uw Gain lipul |6)
Provided tor Insturments that have high output levels which can result in overdriving (distorting} the High Gain Input.
Pre EQ Patch Jacks 10}
Send and Returnjacks are provided forin line patching of low level (instrumentsignal) type eftectstievices before (PRE) the E.Q. circuit. Note:
Line level (1 volt) devices should be patched atthe master patch panel. To patch an effects unit, connect the send jack to the input of the device,
Next, connect the output of the device to the return jack. (Nigh ouality shielded cables must be used for these connections).
Level [D]
Controls the Input voltime level of the channel.
Low EO (El
An active lone control (shelving type, 15 dB) that varies the low frequency range
Caution excessive low frequency boost causes greater power consumption and increases possibility of speaker damage.
Low Mid EO [FI
An active tone control (peak/notch. +/• 15 dB) that vanes the low tnid frequency range.
High Mid EQ |G|
An active tone control (peak/notch, *h 15 dB) that varies the high rrnd frequency rar\ 9 e.
High EQ Control IHj
An active lone control (shelving type, ‘/* 15 dB) that varies the high frequency range.
Effects fA| |eend| |l|
Adiust signal level applied to effects A send jack. Effects unit must be patched into eftects A send/return jacks Master Effects A return
control blends external effect with mam signal.

Peavey KB-400 Specifications

General

Speaker Size	15 inches
Channels	2
Type	Keyboard Amplifier
EQ	3-band EQ
Outputs	1 x 1/4" (6.35mm) TRS
Effects	Reverb
Inputs	2 x 1/4" instrument/line inputs, 1 x XLR microphone input

Summary

Front Panel Controls

High Gain Input

Input for instruments with low gain, providing a higher signal level than the low gain input.

Low Gain Input

Input for instruments with high output levels, suitable for preventing overdrive on the high gain input.

Pre EQ Patch Jacks

Send and Return jacks for patching effects devices before the EQ circuit.

Channel Level Control

Adjusts the input volume level for each individual channel.

DDT Compressor LED

Indicator LED that illuminates when the DDT compressor prevents amplifier clipping.

Graphic Equalizer

9-band active equalizer for tone coloration and room equalization.

Master Level Control

Controls the overall output gain of the main mixing buss and master output level.

Crossover Control

Variable crossover network (150 Hz to 1.5 KHz) for bi-amp functionality.

Main Output

High level signal send after channel EQ and before master EQ.

Power Amp Input

HighLow Crossover Output Jacks

Rear Panel Features

Fuse

Power Switch

Speaker Outputs

Standard 1/4" jacks for connecting speaker systems, optimized for a minimum 4-ohm load.

Technical Specifications

Keyboard Inputs Specifications

Main Output Specifications

Crossover Specifications

Details the crossover frequency range (150 Hz to 1.5 KHz) and slope (12 dB/Octave).

Power Amplifier Performance

Specifies rated power output (210W RMS into 8 ohms, 300W RMS into 4 ohms) and DDT II features.

Frequency Response

Preamp Hum & Noise

System Distortion

Equalization Controls

DDT II Dynamic Range

Application Examples

Bi-Amp Hookup Example

Illustrates connecting the amplifier for bi-amped speaker systems using crossover outputs.

Effects Patches Example