User manual PEAVEY KB-400

[. . . ] 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. This signal passes only to the amp and is not part of the line output signal. [. . . ] This input will accept very high level signals generated by synthesized keyboard systems or very low signals generated by practice or home keyboard units. LEVEL CONTROL Controls the channel three 1/4" phone jack input level. POWER LED (RED) The red power LED will illuminate when AC power is being supplied to the amp. 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. LINE OUT Balanced XLR output can be used to route signals to a mixing console, tape recorded, etc. 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. 01% PREAMP HUM AND NOISE Greater than -95 dBV CHANNEL EQUALIZATION ±15 dB at 80 Hz and 10 kHz, shelving POWER AMPLIFIER SECTION POWER AT CLIPPING (TYPICALLY) 40 W RMS into 8 ohms/low channel 10 W RMS into 8 ohms/high channel (Both channels driven, 5% THD, 3. 5 kHz , 120 V AC Line) TOTAL HARMONIC DISTORTION Less than 0. 3%, 30 W RMS/low channel into 8 ohms, 50 Hz to 2 kHz Less than 0. 3%, 7 W RMS/high channel into 8 ohms, 5 kHz to 20 kHz (Typically below 0. 2%) FREQUENCY RESPONSE +0, -1 dB, @ 30 W RMS/low channel into 8 ohms, 50 Hz to 2 kHz +0, -1 dB, @ 7 W RMS/high channel into 8 ohms, 5 kHz to 20 kHz HUM and NOISE Greater than 90 dB below rated power POWER CONSUMPTION (DOMESTIC) 100 W at 120 V AC, 50/60 Hz CROSSOVER Fixed, 18 dB/octave, 3. PEAVEY ONE-YEAR LIMITED WARRANTY/REMEDY PEAVEY ELECTRONICS CORPORATION ("PEAVEY") warrants this product, EXCEPT for covers, footswitches, patchcords, tubes and meters, to be free from defects in material and workmanship for a period of one (1) year from date of purchase, PROVIDED, however, that this limited warranty is extended only to the original retail purchaser and is subject to the conditions, exclusions, and limitations hereinafter set forth: PEAVEY 90-DAY LIMITED WARRANTY ON TUBES AND METERS If this product contains tubes or meters, Peavey warrants the tubes or meters contained in the product to be free from defects in material and workmanship for a period of ninety (90) days from date of purchase; PROVIDED, however, that this limited warranty is extended only to the original retail purchaser and is also subject to the conditions, exclusions, and limitations hereinafter set forth. cONDITIONS , EXCLUSIONS , AND LIMITATIONS OF LIMITED WARRANTIES These limited warranties shall be void and of no effect , if: a. The first purchase of the product is for the purpose of resale; or b. The original retail purchase is not made from an AUTHORIZED PEAVEY DEALER; or c. The product has been damaged by accident or unreasonable use, neglect, improper service or maintenance, or other causes not arising out of defects in material or workmanship; or d. the serial number affixed to the product is altered , defaced , or removed. [. . . ] Anything has fallen or been spilled into the unit. The unit has been dropped or the enclosure damaged. The user should not attempt to service this equipment. All service work should]d be done by a qualified service technician. [. . . ]