USER MANUAL KB-A 30 PEAVEY
Intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
Intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.
CAUTION: Risk of electrical shock — DO NOT OPEN!
CAUTION: To reduce the risk of electric shock, do not remove cover. No user serviceable parts inside. Refer servicing to qualified service personnel.
WARNING: To prevent electrical shock or fire hazard, do not expose this appliance to rain or moisture. Before using this appliance, read the operating guide for further warnings.
KB/A™ 30 Full-Range Biamped Combo
When you've got to have it all in a portable, high-powered, full-range amplifier — the KB/A™ 30 is it! This amp provides the perfect combination of size, power and features, and is the latest edition to Peavey's popular KB/A™ line of amplifiers.
MOBILITY
The KB/A 30 is compact enough to fit in the tightest locations and weighs only 34.3 pounds.
FULL RANGE SOUND
The KB/A 30 offers a special two-way coax speaker system featuring a 10" woofer with a 1" ferro fluid compression tweeter for exceptional full-range output. The coax design provides the advantages of a point source system, therefore when you move your head, the center point doesn't change. The dome tweeter provides a clean extended response that is extremely smooth.
The KB/A 30 cabinet, borrowed from our bass division, offers an isolated, sealed enclosure which provides optimum bass response.
BIAMPLIFICATION EXPONENTIALLY INCREASES OUTPUT
Unlike any other combo in its class, the KB/A 30 is biamped, which provides dedicated power amps to both the woofer and tweeter. Biamping greatly increases the sound output as the amplifiers work much more efficiently. The signal passes through a specially-designed electronic crossover which feeds the two amplifiers. A 40-watt amp powers the woofer, and a dedicated 10-watt amp powers the tweeter. Biamping greatly increases the available headroom and enables the KB/A 30 sound output to go beyond what you would expect.
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.
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.
FRONT PANEL
CHANNEL ONE
For use with low-impedance microphones or low level sources equipped with a male XLR connector.
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
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.
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
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.
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 utilized without returning any signal to the system from an effects device the power amp will be disabled.
CHANNEL FOUR
19.MONITOR LEVEL
Controls the channel four 1/4 phone jack input level.
A 1/4" phone jack input is provided to be used as a monitor input. This signal does not route to the line output.
21. POWER SWITCH
Depress the switch to the "on" position. The red pilot light (LED) will illuminate indicating power is being supplied to the unit.
22.(120V PRODUCTS ONLY)
For your safety, we have incorporated a three-wire line (mains) cable with proper grounding facilities. It is not advisable to remove the ground pin under any circumstances. If it is necessary to use the equipment without proper grounding facilities, suitable grounding adapters should be used. Less noise and greatly reduced shock hazard exists when the unit is operated with the proper grounded receptacles.
KB/A™ 30 SPECIFICATIONS
PREAMP SECTION
The following preamp specs are measured at 1 kHz with the master EQ set flat at 0 dB, all gain switches in the out position, nominal signal levels are with channel level controls set at five. Minimum levels are with channel level controls set at 10.
Low-Z Input Impedance: 5k ohms
Nominal input Level: -30 dBV, 32 mV RMS
Minimum input Level: -40 dBV, 10 mV RMS
High-Z Input Impedance: 5k ohms
Nominal input level: -30 dBV, 32 mV RMS
Minimum input level: -40 dBV, 10 mV RMS
Input impedance: 22k ohms
Nominal input level: -21 dBV, 90 mV RMS
Minimum input level: -40 dBV, 10 mV RMS
Input impedance: 10k ohms
Nominal input level: 0 dBV, 1 V RMS
Minimum input level: -25 dBV, 56 mV RMS
EFFECTS PATCH : (STEREO JACK TIP)
Function: Low level effects send
Load impedance: 1k ohms or greater
Nominal output: -10 dBV, 316 mV RMS
PRE EQ PATCH: (STEREO JACK RING)
Function: Low level effects return
Impedance: High-Z, 10k ohms
Input level: -10 dBV, 316 mV RMS
(Switching stereo jack provides patch output to patch input connection when not used.)
LINE OUTPUT:
Function: High level signal send
Load impedance: 100 ohms or greater
Nominal output: -6 dBV, 0.5V RMS
Maximum output: 18 dBV, 8V RMS
(XLR pin 2 positive/pin 3 negative)
HEADPHONE OUTPUT: (STEREO JACK)
Load impedance: 8 ohms or greater
Nominal output: 100 mW
(Switching jack will disconnect internal speaker when headphone plug is inserted.)
The following specs measured at nominal setting, all phone jack inputs terminated with 47k ohms.
FREQUENCY RESPONSE
(Channel input/preamp output at 1 V RMS level) +0, -3 dB, 20 Hz to 20 kHz
PREAMP DISTORTION
(Channel in/preamp out, 20 Hz to 20 kHz at 1 V RMS)
Less than .05% THD, typically below .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, 3.5kHz , 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, 3.5 kHz crossover frequency
ESPANOL
KB/A™ 30
Low-Z Input Impedance: 5k ohms
Nominal input Level: -30 dBV, 32 mV RMS
Minimum input Level: -40 dBV, 10 mV RMS
High-Z Input Impedance: 5k ohms
Nominal input level: -30 dBV, 32 mV RMS
Minimum input level: -40 dBV, 10 mV RMS
Input impedance: 22k ohms
Nominal input level: -21 dBV, 90 mV RMS
Minimum input level: -40 dBV, 10 mV RMS
Input impedance: 10k ohms
Nominal input level: 0 dBV, 1 V RMS
Minimum input level: -25 dBV, 56 mV RMS
EFFECTS PATCH : (STEREO JACK TIP)
Function: Low level effects send
Load impedance: 1k ohms or greater
Nominal output: -10 dBV, 316 mV RMS
PRE EQ PATCH: (STEREO JACK RING)
Function: Low level effects return
Impedance: High-Z, 10k ohms
Input level: -10 dBV, 316 mV RMS
(Switching stereo jack provides patch output to patch input connection when not used.)
LINE OUTPUT:
Function: High level signal send
Load impedance: 100 ohms or greater
Nominal output: -6 dBV, 0.5V RMS
Maximum output: 18 dBV, 8V RMS
(XLR pin 2 positive/pin 3 negative)
HEADPHONE OUTPUT: (STEREO JACK)
Load impedance: 8 ohms or greater
Nominal output: 100 mW
(Switching jack will disconnect internal speaker when headphone plug is inserted.)
The following specs measured at nominal setting, all phone jack inputs terminated with 47k ohms.
FREQUENCY RESPONSE
(Channel input/preamp output at 1 V RMS level)
+0, -3 dB, 20 Hz to 20 kHz
PREAMP DISTORTION
(Channel in/preamp out, 20Hz to 20kHz at 1 V RMS)
Less than .05% THD, typically below .01%
PREAMP HUM AND NOISE
Greater than -95 dBV
CHANNEL EQUALIZATION
± 15 dB at 80Hz and 10kHz , 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, 50Hz to 2kHz
Less than 0.3% , 7 W RMS/high
channel into 8 ohms, 5kHz to 20kHz
(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, 3.5 kHz crossover
frequency
FRANÇAIS
KB/A™ 30
Combo bianplifié
Impedance d'entrée: 22k ohms
Impédance: High-Z, 10k Ohm
KB/A™ 30 Full-Range Biamped Combo
10 W RMS into 8 ohms/hoher Kanall
(Beide Kanäle 5% THD, 3.5 kHz,
220 V AC Line)
TOTALE-KLIRRVERZERRUNG
Fest, 18 dB/Oktave, 3.5 kHz Frequenzweiche
THIS LIMITED WARRANTY VALID ONLY WHEN PURCHASED AND REGISTERED IN THE UNITED STATES OR CANADA. ALL EXPORTED PRODUCTS ARE SUBJECT TO WARRANTY AND SERVICES TO BE SPECIFIED AND PROVIDED BY THE AUTHORIZATION DISTRIBUTOR FOR EACH COUNTRY. Ces clauses de garantie ne vent variables qu'aux Etats-Unis et au Canada. Dans tour les autres pays, les clauses de garantie et de maintenance vent fixees par le distributeur national et assuree par lui scion la legislation envigueur. • Dese Garantie ist nur in den USA and Kanada gultig. Alle ExportProdukte sind der Garantie und dem Service des Importeurs des jewelligen Landes unterworfen. •Esta garantia es valide solamente quando et produits es comprado en E.U. continentales o en Canada. Todos los produits que seen comprados en el extranjero, estan suertos a las garantias y servicios que cada distribuidor autorizzato determine y of rezca en los differentes paises.
PEAVEY ONE-YEAR LIMITED WARRANTY/REMEDY
P
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 WARRANTYES
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.
In the event of a defect in material and/or workmanship covered by this limited warranty, Peavey will:
a. In the case of tubes or meters, replace the defective component without charge.
b. In other covered cases (i.e., cases involving anything other than covers, footswitches, patchcords, tubes or meters), repair the defect in material or workmanship or replace
the product, at Peavey's option; and provided, however, that, in any case, all costs of shipping, if necessary, are paid by you, the purchaser.
THE WARRANTY REGISTRATION CARD SHOULD BE ACCURATELY COMPLETED AND MAILED TO AND RECEIVED BY PEAVEY WITHIN FOURTEEN (14) DAYS FROM THE DATE OF YOUR PURCHASE.
In order to obtain service under these warranties, you must:
a. Bring the defective item to any PEAVEY AUTHORIZED DEALER or AUTHORIZED PEAVEY SERVICE CENTER and present therewith the ORIGINAL
PROOF OF PURCHASE supplied to you by the AUTHORIZED PEAVEY DEALER in connection with your purchase from him of this product
If the DEALER or SERVICE CENTER is unable to provide the necessary warranty service you will be directed to the nearest other PEAVEY AUTHORIZED
DEALER or AUTHORIZATION PEAVEY SERVICE CENTER which can provide such service, OR
b. Ship the defective item, prepaid, to:
PEAVEY ELECTRONICS CORPORATION
International Service Center
326 Hwy. 11 & 80 East
Meridian, MS 39301
Including therewith a complete, detailed description of the problem, together with a legible copy of the original PROOF OF PURCHASE and a complete return
address. Upon Peavey's receipt of these items: If the defect is remedial under these limited warranties and the other terms and conditions expressed herein
have been complied with, Peavey will provide the necessary warranty service to repair or replace the product and will return it, FREIGHT COLLECT, to you,
the purchaser.
Peavey's liability to the purchaser for damages from any cause whatsoever and regardless of the form of action, including negligence, is limited to the actual damages up to the greater of $500.00 or an amount equal to the purchase price of the product that caused the damage or that is the subject of or is directly related to the cause of action. Such purchase price will be that in effect for the specific product when the cause of action arose. This limitation of liability will not apply to claims for personal injury or damage to real property or tangible personal property allegedly caused by Peavey's negligence, Peavey does not assume liability for personal injury or property damage arising out of or caused by a non-Peavey alteration or attachment, nor does Peavey assume any responsibility for damage to interconnected non-Peavey equipment that may result from the normal functioning and maintenance of the Peavey equipment.
UNDER NO CIRCUMSTANCES WILL PEAVEY BE LIABLE FOR ANY LOST PROFITS, LOST SAVINGS, ANY INCIDENTTAL DAMAGES, OR ANY
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PRODUCT, EVEN IF PEAVEY HAS BEEN ADVISED OF THE POSSIBILITY
OF SUCHDAMAGES
THESE LIMITED WARRANTY ARE IN LIEU OF ANY AND ALL WARRANTYES, EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WAR
RANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR USE: PROVIDED, HOWEVER, THAT IF THE OTHER TERMS AND CONDITIONS NECESSARY TO THE
EXISTENCE OF THE EXPRESSED, LIMITED WARRANTYES, AS HEREINABOVE STATED, HAVE BEEN COMPLIED WITH, IMplied
WARRANTIES ARE NOT DISCLAIMED DURING THE APPLICABLE ONE-YEAR OR NINETY-DAY PERIOD FROM DATE OF PURCHASE OF THIS PRODUCT.
SOME STATES DO NOT ALLOW LIMITATION ON HOW LONG AN IMPLIED WARRANTY LASTS, OR THE EXCLUSION OR LIMITATION OF INCIDENTAL
OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU. THESE LIMITED WARRANTYES GIVE YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH MAY VARY FROM STATE TO STATE.
THESE LIMITED WARRANTY ARE THE ONLY EXPRESSED WARRANTYES ON THIS PRODUCT, AND NO OTHER STATEMENT, REPRESENTATION, WARRANTY,
OR AGREEMENT BY ANY PERSON SHALL BE VALID OR BINDING UPON PEAVEY.
In the event of any modification or disclaimer of expressed or implied warranties, or any limitation of remedies, contained herein conflicts with applicable law, then such modification, disclaimer or limitation, as the case may be, shall be deemed to be modified to the extent necessary to comply with such law.
to equipment purchased in the United States of America.
INSTRUCTIONS—WARRANTY REGISTRATION CARD
- Mail the completed WARRANTY REGISTRATION CARD to:
PEAVEY ELECTRONICS CORPORATION
P.O. BOX 2898
Meridian, MS 39302-2898
a. Keep the PROOF OF PURCHASE In the event warranty service is required during the warranty period, you will need this document. There will be no identification card issued by Peavey Electronics Corporation
2. IMPORTANCE OF WARRANTY REGISTRATION CARDS AND NOTIFICATION OF CHANGES OF ADDRESSES:
a. Completion and mailing of WARRANTY REGISTRATION CARDS—Should notification become necessary for any condition that may require correction the REGISTRATION CARD will help ensure that you are contacted and properly notified.
b. Notice of address changes - If you move from the address shown on the WARRANTY REGISTRATION CARD, you should notify Peavey of the change of address so as to facilitate your receipt of any bulletins or other forms of notification which may become necessary in connection with any condition that may require dissemination of information or correction.
3. You may contact Peavey directly by telephoning (601) 483-5365.
IMPORTANT SAFETY INSTRUCTIONS
WARNING: When using electric products, basic cautions should always be followed. including the following.
- Read all safety and operating instructions before using this product.
- All safety and operating instructions should be retained for future reference.
- Obey all cautions in the operating instructions and on the back of the unit.
- All operating instructions should be followed.
- This product should not be used near water, i.e., a bathtub, sink, swimming pool, wet basement, etc.
- This product should be located so that its position does not interfere with its proper ventilation. It should not be placed flat against a wall or placed in a built-in enclosure that will impede the flow of cooling air.
- This product should not be placed near a source of heat such as a stove, radiator, or another heat producing amplifier.
- Connect only to a power supply of the type marked on the unit adJacent to the power supply cord.
- Never break off the ground pin on the power supply cord. For more information on grounding, write for our free booklet "Shock Hazard and Grounding."
- Power supply cords should always be handled carefully. Never walk or place equipment on power supply cords. Periodically check cords for cuts or signs of stress, especially at the plug and the point where the cord exits the unit.
- The power supply cord should be unplugged when the unit is to be unused for long periods of time.
- If this product is to be mounted in an equipment rack, rear support should be provided.
- Metal parts can be cleaned with a damp rag. The vinyl covering used on some units can be cleaned with a damp rag or an ammonia-based household cleaner if necessary. Disconnect unit from power supply before cleaning.
- Care should be taken so that objects do not fall and liquids are not spilled into the unit through the ventilation holes or any other openings.
- This unit should be checked by a qualified service technician if:
a. The power supply cord or plug has been damaged.
b. Anything has fallen or been spilled into the unit.
c. The unit does not operate correctly.
d. The unit has been dropped or the enclosure damaged.
- The user should not attempt to service this equipment. All service work should be done by a qualified service technician.
- This product should be used only with a cart or stand that is recommended by Peavey Electronics.
- Exposure to extremely high noise levels may cause a permanent hearing loss. individuals vary considerably in susceptibility to noise induced hearing loss, but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a sufficient time. The U.S. Government's Occupational Safety and Health Administration (OSHA) has specified the following permissible noise level exposures.
Duration Per Day In Hours
8
6
4
3
2
1 1/2
1
1/2
1/4 or less
Sound Level dBA, Slow Response
90
92
95
97
100
102
105
110
115
According to OSHA, any exposure in excess of the above permissible limits could result in some hearing loss. Ear plugs or protectors h1 the ear canals or over the ears must be worn when operating this amplification system in order to prevent a permanent hearing loss if exposure is in excess of the limits as set forth above. To ensure against potentially dangerous exposure to high Sound pressure levels, it is recommended that all persons exposed to equipment capable of producing high sound pressure levels such as this amplification system be protected by hearing protectors while this unit is in operation.
SAVE THESE INSTRUCTIONS!
Features and specifications subject to change without notice.
Peavey Electronics Corporation • 711 A Street • Meridian • MS • 39301 • (601) 483-5365 • FAX 486-1278
