Carvin kb 1010 owners manual

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FRONT PANEL FEATURES 1. INPUT LEVELS AND MIXING 1-7The KB1000has 7 inputs which are combined to produce a single stereo or mono output. The INPUT LEVELcontrol is used to set the input level and how much signal is mixed. To make sure you have plenty of headroom for mixing, the keyboard output levels should be set so that turning the INPUT LEVELto at least 7, preferably 10 will not cause clipping. The red CLIPLED indicates when the input is close to clipping. To avoid clipping, reduce the keyboard level first, then turn down the INPUT LEVELknob if the clipping persists. The green SIGLED indicates a signal is present at the input ONLY when the INPUT LEVEL is turned up. 2. INPUT JACKSTwo 1/4 phone jacks are provided on each of the 7 channels to accommodate both stereo and mono instruments. Plugging mono sources into the R jack of an INPUTwill send signal to both LEFTand RIGHToutputs. You can double the amount of inputs by choosing to run in MONO mode and plugging into all14(1-7, L&R) input jacks, without regard to stereo assign- ment. Adjust keyboard output levels to mix L&R inputs accordingly. 3. AMP EQ CONTROLSThe AMP EQtone controls consist of a LOW, LO MID,HI MID and HIGHcontrols. These con- trols DO NOT affect the DIRECT OUT XLRs.Since most of the tone shaping is done within the keyboard itself, the AMP EQcontrols are designed to accomodate for differences in speakers and acoustic environments. The LOW control affects the lowest frequencies. Excessive BOOMI- NESS can be reduced by turning the LOW control down while turning it up can add fullness to your sound. TheLO MIDcontrol adjusts frequencies in the 300Hz range adding extra punch when needed. The HI MIDcontrol adjusts frequencies in the 2.5kHz range allowing you to cut through on a crowded sound stage. The HIGHcontrol knob is designed to cut or boost the highest frequencies. Usually a dead room will will require a boost from the HIGHcon- trol while a live room with a lot of reflective surfaces will invite you to reduce the HIGHcon- trol. Note: boosting the high frequencies can result in increased hiss. This is normal. The AMP EQis a sound shaping tool which may require some practice to get the best results. Listen to the results and experiment with different settings. 4. DIRECT OUT XLR s TheDIRECT OUT XLRsare balanced outputs that get their signal directly from INPUTs 1-7. These outputs are very useful when connecting to the main mixing board for live performances or recording. Use the DIRECT OUT LEVEL control to set the output. The MONOswitch is used to combine the LEFTand RIGHTINPUTS so that bothL-R DIRECT OUT XLR jacks receive the same mono signal. NOTE: THE DIRECT OUT MONO SWITCH DOES NOT AFFECT THE STEREO OR MONO OUTPUT OF THE POWER AMP . A LIFT GNDswitch is also available on the DIRECT OUT XLR jacks. Set this switch for the lowest hum/noise when using this output. When the LIFT GNDswitch is depressed, the signal ground is lifted from these jacks thus eliminating any ground loops between the KB1000and the gear its feeding. NOTE: THE AMP EQ, POWER AMP 1&2 AND MAIN LEVEL CONTROLS DO NOT AFFECT THE DIRECT OUT SIGNAL . 5. DIRECT OUT LEVELThe DIRECT OUT LEVEL control sets the output for theDIRECT OUT XLRs ONL Y. It will not affect the volume coming out of the amp speakers or the rear line outs. Communicate with the mixing engineer to set the proper level. 6. DI MUTE SWITCHES (ON INPUTS 6&7)Inputs 6and 7featureDI MUTEswitches. When pressed IN, signals from inputs 6 and 7 will be REMOVED from theDIRECT OUT XLRs, but will still be heard through the AMP 1&2 speaker outputs, PHONESjack and rear LINE OUT jacks. This is useful for listening to click tracks, monitor feeds or other sources WITHOUT sending these signals to the DIRECT OUT XLRsand to the house system. 7. ELECTRONIC X-OVER (BI-AMPING)When the BI-AMPswitch is pressed IN, the amp is in the bi-amp mode. This means all fre- quencies BELOW the X-OVER FREQare sent to the POWER AMP 1 OUTPUT, while frequen- cies ABOVE the X-OVER FREQ are sent to the POWER AMP 2 OUTPUT. To select the crossover frequency, rotate the FREQcontrol knob until the desired frequency is obtained. Try 800Hz. A bi-amped system gives the user greater control over the tone. This allows speakers designedfor specific frequencies to be utilized to their fullest potential. Subwoofers will be more effi- cient at reproducing low frequencies with less distortion. Full range enclosures will not have to work as hard reproducing the lowest frequencies which consume the most power. Stereo (L-R) separation from the power amps is no longer possible, but is retained at the DIRECT OUT XLRs and PHONES jack. NOTE: BI-AMPING DOES NOT NECESSARILY DELIVER THE MOST VOLUME FROM YOUR SYSTEM. 8. OUTPUT CONTROL GROUP-“MAIN, AMP 1L, AMP 2RThe output group controls the volume and amp output levels. The POWER AMP 1 & 2 CON- TROLS adjust the volume to the individual amps. The MAIN control sets the overall volume. Try setting the MAIN control to 5 as a starting point. FULL RANGE MONO (KB1010) AND STEREO: For KB1010operation push theMONO(MAIN) switch IN. Turn up the AMP 1L knob on the KB1010until the desired volume level is reached. If your are connecting a pair of speakers for stereo use, be sure to release theMONO(MAIN) switch. Turn up the AMP 1L & AMP 2R knobs until the desired volume level and left and right balance is reached. BIAMP CONTROL(combos): To set the balance, bring up the AMP 1L (LOW FREQ)knob until the desired volume level is reached. Now bring up the AMP 2R (HIGH FREQ)knob until the desired balance has been achieved. BRIDGE mode, use only the AMP 1Lcontrol, as the AMP 2Rcontrol becomes ineffective. If either of the red PK LEDs flash for AMP1 or AMP2, reduce the POWER AMP 1 or 2volume or, engage the LIMITERswitch on the rear panel. 9. MONO (MAIN) SWITCHWith the MONOswitch in the OUT position, the KB1000will preserve stereo imaging from the INPUT JACKSto the POWER AMP 1(L) & 2(R) outputs. Setting the MONOswitch to the IN position will send the combination of both LEFTand RIGHTsignals to both POWER AMP OUTPUTS. Helpful if only one speaker cabinet is used, or if stereo imaging is not important. NOTE: THE MONO (MAIN) SWITCH DOES NOT AFFECT THE STEREO OR MONO OUTPUT OF XLR DIRECT OUTS. 10. PHONES JACKA PHONESjack is provided for practicing or monitoring. The MAIN knob controls the volume. The phones jack does not interrupt the amplifier output. To listen to the PHONES output with- out sound from the speakers, turn down the POWER AMP 1&2 controls. A high-current head- phone amp drives this output for any pair of headphones. REAR PANEL FEATURES 11. POWER / (RESET)Push the upper portion of the POWER SWITCH to turn the amplifier on. If the POWERLED is on but no sound is coming out of the speakers, the amp may have gone into one of its pro- tection modes with the PROTECTLED ON. To reset the amp, turn the power off for one minute and then turn the amp back on. If the problem persists, check for; a) The speaker impedance is too low for the bridge output (4 ohm min.) or normal outputs (2 ohms min. per amp) b)bad speaker cable, c)damaged speaker or d)blocked rear fan cooling vents. 12. COOLING VENTSThe rear vents cool the internal power amps. Provide a minimum of 3 clearance for adequate ventilation. Blocking the air flow to these vents will cause the amp to thermally protect and turn the speaker relays off. The PROTECTLED on the front panel will light. If this happens, clear the obstruction first, keep the power on, allowing the amp to cool. The amp will engage the speaker relays when cooling conditions return to normal. 13. LIMITER SWITCHThe KB1000features distortion-free, optoislator power amp limiters. Limiters help prevent power amp clipping by reducing peaks before they reach the amp. To use this feature, press IN theLIMITERswitch. 6 4 5 8 9 1 2 7 3 10 11

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14. LINE OUT AMP 1&2 JACKS (LOW FREQ & HIGH FREQ) The LINE OUT AMPjacks receive the same signals that drive the internal power amps. These jacks are TRS (Tip-Ring-Sleeve) for balanced or unbalanced connections. Using a standard instru- ment cable or TRS (Tip-Ring-Sleeve) cable, the amp signal can be sent to the external power amp(s). Use the front AMP1 & AMP2controls for level adjustments. When the X-OVERswitch is set to IN, AMP1receives the low frequency signals and AMP2receives the high frequency signals as set by the front panel crossover. 15. SPEAKER OUTPUTSThe KB1000amp contains four 1/4jacks (2 per amp), 2 sets of BINDING POSTS(1 per amp), and two SPEAKON-„¢ speaker output connectors, (1 per amp). The third SPEAKON-„¢ is for BRIDGE setup only. The AMP 1 (LOW FREQ)outputs correspond to the AMP 1 (LOW FREQ) knob and the AMP 2 (HIGH FREQ)outputs correspond to the AMP 2 (HIGH FREQ)knob on the front panel. Multiple speakers can be attached to either the 1/4 or SPEAKON-„¢ jacks so long as the total impedance is not below 2 ohmsper amp. 16. BRIDGE SPEAKER OUTPUTSThe KB1000produces 1000 watts (bridged mono) into a 4-„¦load or 700 watts into an 8-„¦load. To activate, push the rear recessed BRIDGEswitch IN with a pencil and set the front BI-AMP switch to the OUT position. In BRIDGEmode, the AMP 2Rknob is not effective. Plug the speakers into the BRIDGE ONLY-SPEAKON-„¢ jack or connect across the inner two RED BIND- ING POSTS. Pins 1+ and 1- are used on the Speakon-„¢ connector. The minimum total imped- ance is 4 ohms. 17. INTERNAL FUSEIf there are high AC voltage surges or if the amp is used with excessive loads, the internal fuse will protect your amp from damage. If the fuse fails, use the proper replacement fuse: 120 VAC models use a 25 AMP250VAC slow blow. 240 VAC models use a 15 AMP250 VAC slow blow. 18. AC LINE CORDAll KB1000amplifiers are supplied with detachable three conductor AC line cords. Make sure the cord is securely inserted into the back of the unit. Never defeat the ground of the AC line cord as it is there for your protection. If you must plug into a two prong outlet, use a quality 3 to 2 prong grounded adapter and properly ground it. SPEAKER CONNECTIONS SPEAKON-„¢ cables are recommended for your system because of their high current capac- ity. While the standard 16 GA 1/4 cables will work OK with your system, the CARVIN 12 GA SPEAKON-„¢ cables will allow you to gain as much as 20% more power at high power levels extracting every watt from your KB1000 amp. The very short 1/4 cables will work fine for theKB1010and KB1015combo amps. FULL RANGE MODE:The FULL RANGE MODEof your KB1000amp works well with separate bass and full-range speaker systems. Instead of using the BI-AMPmode, you can simply run AMP 1into your bass speakers and AMP 2into your full-range speakers using the natural crossover frequencies of each speaker system. If you need deeper bass or more highs, just turn up amp 1 or amp 2 for a balanced sound. Set the front panel X-OVERswitch to the OUT position, and the MONOswitch to the IN position forFULL-RANGE MODE. If using only ONEspeaker, as with the KB1015 combo, turn the unused POWER AMP control to 0. BI-AMP MODE:To BI-AMP your speakers, connect your BASS speaker(s) into AMP 1and your FULL-RANGE speaker(s) into AMP 2. Set the front panelX-OVERswitch to the IN position for BI-AMPING. Try setting the X-OVER FREQ control to 800 Hz, this is a common crossover point for many speaker systems. Now adjust the AMP 1Land AMP 2Rpower amp controls to get a bal- HELPFUL HINTS 1) POOR BIAMP SOUND: The speaker cables from AMP 1 (woofers) and AMP 2 (1 tita- nium hf drivers) have been reversed, AMP 1 and 2 level controls are not balanced or the X- OVER has been set at an incorrect frequency. (start at 800 Hz). WARNING: Incorrect BIAMP connections may damage mid/high frequency drivers. 2) NO SOUND FROM AMPS 1 & 2: The rear BRIDGE switch has been inadvertently pushed in, or speakers plugged into wrong jacks. 3) NO HIGH FREQUENCIES: 1 Titanium HF Drivers have been damaged from to much power or low frequencies. Be sure to make the correct speaker connections when BIAMPING. 4) WEAK BASS: The speaker systems are wired out of phase to each other. To correct, reverse the wires on one speaker connector. 5) DIRECT OUT XLR HUM: Try switching the GND LIFT switch IN or OUT. If the hum is not eliminated, use Carvins MTF55ground lift adaptor which cuts the input ground on the con- nectors. 6) KEYBOARD PATCHES SOUND HOLLOW or HAVE LOW VOLUME: Try disconnecting one of the stereo inputs from the keyboard. Some keyboard or effects settings depend on stereo imaging to get their full-sound. This commonly means putting the left and right signals out-of-phase. If these out-of-phase signals are mixed in either the MONO or BIAMP MODES, cancellation of signal will occur. Panning or leslie effects within a patch may cause similar results. 7) HEADPHONE VOLUME IS TOO LOW OR YOU NEED TO SHUT OFF SPEAKERS: Turn down the POWER AMP 1 &2 controls and increase the MAIN level control. anced sound. If you have the KB1015 combo and you are in the BI-AMP MODE. Be sure the LOW FREQ INPUTis plugged intoAMP 1and the HI FREQ INPUTis plugged into AMP 2. STEREO MODE:The STEREO mode of your KB1000amp takes advantage of the lush stereo imaging avail- able from modern keyboards. Simply run AMP 1into your main speaker and AMP 2into an extension speaker. The front panel MONOand X-OVER switches must be left in the OUT position for STEREO MODE. BRIDGE MODE:To get high output from your KB1000amp with two 8 ohm speakers or one 4 ohm speaker, use the BRIDGE MODE. Set the front panel X-OVERswitch to the OUT position. On the rear of the amp, push the BRIDGEswitch IN. In BRIDGEmode, the AMP 2Rcontrol is not used, use only the AMP 1Lcontrol. Plug one SPEAKON-„¢ cable into the rear ampBRIDGE ONLY connector and daisy-chain another Speakon-„¢ from speaker to speaker. Two 8 ohm speakers will give you a total impedance of 4 ohms, which is the maximum power from your amp. If you use two 4 ohms speakers on the BRIDGE output, your amp will shut off and go into the protect mode. To reset, turn your amp off and connect only two 8 ohm speakers (or one 4 ohm) speaker to your amp when you are in BRIDGE MODE. FOR MAXIMUM OUTPUT:To get your loudest output, use multiple speakers or enclosures. Every time you double your speakers, your acoustic output goes up by a factor of four. Load the amplifier down to its lowest minimum impedance for maximum RMS power. EXTENSION SPEAKERS:The extension speaker for the KB1010is the 1010Eand for the KB1015, the model number is 1015E. Please contact Carvin sales at 800-854-2235or car vin.com . 18 13 14 17 12 15 16 158 OHMS/CH 4 OHMS/CH 2 OHMS/CH 8 BRIDGED 4 BRIDGED225W 350W 500W 700W 1000W120VAC 60Hz 1200VA INTERNAL FUSEBRIDGE LIMITER TIP - SIGNAL + RING - SIGNAL -“ SLEEVE - GND TRS BALANCED