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Biamping greatly increases the available headroom and enables the KB/A 30 sound output to go beyond what you would expect. FOUR INPUTS Channel one is optimized for mic or line input (XLR combo input) and features two-band EQ. Channel two is optimized for line or acoustic inputs and features a gain switch to better handle acoustic inputs in addition to the two-band EQ. Channel three is a dedicated line/instrument input and features two-band EQ. A fourth channel is located on the rear panel and offers a monitor input. This signal passes only to the amp and is not part of the line output signal. This is handy for click tracks or other monitoring. You could even have the console monitor signal fed to the amp through this input giving the KB/A 30 a dual function. An effects insert (send/return) is also provided for adding your favorite EFX device to the master signal. The variety of inputs provided on the KB/A 30 make it a versatile power packed system. OUTPUTS The KB/A 30 offers an XLR balanced line output in addition to a 1/4" effects send jack that can function as a direct output. Also, the all-important headphone output is placed on the front for easy access. When the headphone is used, the amplifier signal is automatically muted. 3 MORE... This amp provides the perfect combination of size, power, and features. With excellent sound, roadworthy design, and unmatched reliability, the KB/A 30 is the amplification choice for your keyboard, acoustic guitar, and vocal applications. And don’t forget ... with every KB/A series amplifier, you get Peavey’s excellent warranty and the best in support from its award-winning service department. CHANNEL ONE 1. LOW-Z INPUT For use with low-impedance microphones or low level sources equipped with a male XLR connector. 2. HIGH-Z INPUT For use with high-impedance microphones or high level sources equipped with a 1/4" phone plug. 3. GAIN CONTROL Controls the channel one input level. 4. LOW EQ An active tone 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. 5. HIGH EQ An active tone control (shelving type, ±15 dB) that varies the high-frequency range. CHANNEL TWO 6. HIGH-Z INPUT A 1/4" phone jack input is provided with extremely wide dynamic range. This input will accept very high level signals generated by synthesized keyboard systems or very low signals generated by practice or home keyboard units. FRONT PANEL 1 2 8 3 4 5 6 7 9 10 11 12 13 14 15 16 4 7. LEVEL CONTROL Controls the channel two 1/4" phone jack input level. 8. GAIN SWITCH Boosts the gain of its channel by 12 dB. Depress to the “in” position to activate. 9. LOW EQ An active tone 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. 10.HIGH EQ An active tone control (shelving type, ±15 dB) that varies the high-frequency range. CHANNEL THREE 11. HIGH-Z INPUT A 1/4" phone jack input is provided with extremely wide dynamic range. This input will accept very high level signals generated by synthesized keyboard systems or very low signals generated by practice or home keyboard units. 12.LEVEL CONTROL Controls the channel three 1/4" phone jack input level. 13.LOW EQ An active tone 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. 14.HIGH EQ An active tone control (shelving type, ±15 dB) that varies the high-frequency range. 15.POWER LED (RED) The red power LED will illuminate when AC power is being supplied to the amp. 16.HEADPHONE JACK A stereo jack is provided in order to allow the signal to flow to each side of any stereo headset. When a stereo headset is plugged in, the internal speaker is automatically turned off so that a totally private rehearsal situation can be accomplished. NOTE: The headphone system will not work with headsets that have a mono phone plug. 5 17.LINE OUT Balanced XLR output can be used to route signals to a mixing console, tape recorded, etc. 18.EFFECTS PATCH A stereo out/in jack allows the use of various auxiliary units (chorus, flanging, tape/digital/analog delays, equalizers, etc.) in line before the power amp section. To utilize this system, a stereo plug (tip/ring/sleeve) to a “Y” cord must be used. The tip portion of the 1/4" stereo jack serves as the signal send (output) while the ring portion will return the processed signal to the system. The sleeve portion serves as the ground. Since this is a stereo jack configuration, the first click on the jack may be used as a pre power amp output with a mono 1/4" plug if desired. This first click will not disturb the signal flow to the remainder of the system as it is fed into the power amp section. NOTE: If the second click of the out/in jack is utili...