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3 Front Left Speaker Front Right Speaker Rear Left Speaker Rear Right Speaker Subwoofer Two Channel Stereo Configuration Two Channel Four Speaker Stereo Configuration DANCE FLOOR DANCE FLOOR OFF OFF Two Channel Four Speaker Stereo Diagonal Configuration Circle Surround Configuration DANCE FLOOR DANCE FLOOR Page

4 Connections. Before plugging in the power cord, make sure that the VOLTAGE SELECTOR () switch is set to the correct voltage.. Make sure that the POWER (0) switch is in the off position. The POWER LED () will be off. All connections must be made with all equipment OFF.. On the rear panel is one set of electronically balanced stereo INPUTS (, ). The INPUTS (, ) are used to connect to the output of your mixer using standard XLR cables. The balanced inputs have three separate conductors, two of which are signal (positive and negative) and one which is a shield (ground). Pin is ground (shield). Pin is signal hot (positive). Pin is signal cold (negative).. The SP- is supplied with BALANCED OUTPUTS (,,,, ). The BALANCED OUTPUT connectors are used to connect to your amplifiers using standard XLR cables. Connect the BALANCED OUTPUT () to the amplifier for the subwoofer. Connect the BALANCED OUTPUT () to the amplifier for the rear right speaker. Connect the BALANCED OUTPUT () the amplifier for the rear left speaker. Connect the BALANCED OUTPUT () to the amplifier for the front right speaker. Connect the BALANCED OUTPUT () to the amplifier for the front left speaker. The BALANCED OUTPUTS have three separate conductors, two of which are signal (positive and negative) and one which is a shield (ground). Pin is ground (shield). Pin is signal hot (positive). Pin is signal cold (negative). Speaker Placement Just like in a theater or a home surround system set up, speaker placement should be arranged to create a box in order to maximize the effect of the SP-. Refer to Page for greater detail. Position the subwoofer between the front speakers. If you position the subwoofer in front of a wall or facing away from a corner, you will gain subwoofer output. Using the Ground Lift Switch Depending on your system configuration, sometimes applying the ground will create a quieter signal path. Sometimes lifting the ground can eliminate ground loops and hum to create a quieter signal path.. With the unit on, listen to the system in idle mode (no signal present) with the ground applied (the GROUND LIFT SWITCH () in the left position).. Then turn the power off before moving the GROUND LIFT SWITCH (). Lift the ground by moving the GROUND LIFT SWITCH to the right, turn the power back on and listen to determine which position will provide a signal devoid of background noise and hum. Keep the GROUND LIFT SWITCH in the ground position if the noise level remains the same in either position. CAUTION: Do not terminate the AC ground on the unit in any way. Termination of the AC ground can be hazardous. Operation. After you have finished connection and placing the speakers in their proper position, turn the POWER (0) on to the SP- (the POWER LED () will glow) and the rest of your equipment. Note: Turn on your equipment in the order that the sound travels, beginning with the source and ending with the amps.. Move the SOUND FIELD () control to the Circle Surround position, then press the TEST () button on the SP-. White noise will cycle through each speaker (except the subwoofer) so that you may monitor the levels of each speaker individually. While standing in the center of the dance floor, check the noise levels with a sound pressure level (SPL) meter or listen to the noise levels. Use the OUTPUT LEVEL (,,, 0) controls to adjust the output level of the channels. Note: The REAR EFFECT LEVEL () is disabled in test mode. When you ve finished the test, use the SUBWOOFER OUTPUT LEVEL () control to adjust the output level of the subwoofer. Note: The subwoofer will work in all modes of operation and is always on. Disconnect the subwoofer if you don t want to use it. See the Bass Enhancer instructions for more information. Front Panel Controls. Volume Control: Use the VOLUME () control to adjust the overall volume.. Rear Effect Level: Starting from the center position, use the REAR EFFECT LEVEL () to adjust the rear speaker levels. You may boost the rear channels if you feel not enough sound is coming from them. You can also readjust the rear levels for music with varying spatial information.. Sound Field: Use the SOUND FIELD () control to choose a mode of operation.. Test Button: In Circle Surround mode, press the TEST () button on the SP-, and white noise will cycle through each speaker (except the subwoofer) so that you may monitor the levels of each speaker individually. The test button is recessed so you can not accidentally initiate a test in the middle of your music program.. Output Level Controls: Use the OUTPUT LEVEL (,,, 0) controls to preadjust the output levels of the channels to compensate for different amps and speaker sensitivity. Use the SUBWOOFER OUTPUT LEVEL () control to adjust the output level of the subwoofer.. Bass Enhancer: Press the BASS ENHANCER () button to boost the level of the bass of the subwoofer by + db at 0 Hz. The Bass Enhancer works optimally with most vented prosound subwoofers, and when activated, special filters shape the frequency response to optimize bass performance while cutting subsonic frequencies. Note: the Bass Enhancer only boosts the bass from the subwoofer output.. Signal LED: The multi-color SIGNAL LED () indicates the level of the signal and changes color incrementally from green to red. When the SIGNAL LED () glows red, the unit is in overload, and you should lower the VOLUME (). Sometimes you can also stop an overload by lowering the REAR EFFECT LEVEL () or the SUBWOOFER OUTPUT LEVEL (). Ideally, the SIGNAL LED () should flash between green and orange. Modes of Operation Use the SOUND FIELD () control to choose one of the following modes of operation:. Two Channel Stereo: In this standard stereo mode, the rear speakers are disengaged and only the front speakers function.. Two Channel Four Speaker Stereo: In this four speaker stereo mode, the rear speakers mirror the front speakers program signal.. Two Channel Four Speaker Stereo Diagonal: With diagonal mode, the rear right and left sides reverse so that the rear right speaker mirrors the front left speaker s program signal and the rear left speaker mirrors the front right speaker s program signal. This mode is useful in large rooms or club environments to avoid people on one side of the room hearing only one channel of a stereo program.. Circle Surround: In Circle Surround sound mode, any stereo signal can be used to generate surround play. A frequency and phase dependent amplitude based signal processor uses ambiance and directional information already present in the stereo signal to generate D surround sound. And unlike other surround formats where the rear output is mono and bandwidth limited, Circle Surround separates the left and right rear channels with full bandwidth. In this mode, the rear speakers will not output the full program (the rear levels will be lower than the front), because the rear speakers are used to create an enhanced spatial perception. Note: The Circle Surround Experience is dependent on the source itself, therefore some tracks of music may sound better in Circle Surround than others. Signals encoded for Circle Surround will give you the best circle surround experience. Page

5 Specifications Parts Lists Balanced Inputs: Sensitivity... VRMS Impedance...0 kohm Balanced Outputs: Level... VRMS Impedance...00 Ohm Frequency Response: Stereo Mode...0 Hz - 0 khz +0, - db Circle Surround Mode...0 Hz - khz +0, -db Distortion: Stereo Mode...<0.0% Circle Surround Mode...<0.% S/N Ratio: Stereo Mode...>0 db Circle Surround Mode Front Channels...>0 db Circle Surround Mode Rear Channels...> db Subwoofer Channel: Low Pass Filter...@ 00 Hz, db/oct High Pass Filter...@ Hz, db/oct High Pass Filter in Enhanced Mode Hz (Q=), db/oct Rear Channel Effect Max./Min. Ratio... db Power Source...V/0V, 0 Hz/0 Hz Power Consumption...0 W Dimensions... x. x 0. ( x x mm) Weight...0. lbs (. kg) Circle Surround and the symbol are trademarks of SRS Labs, Inc. in the United States and selected foreign countries. Circle Surround technology is incorporated under license from SRS Labs, Inc. is a trademark of Valence Technology Limited, in China, Hong Kong and Taiwan. CS technology is incorporated with permission of Valence Technology Limited. 0 0 Cabinet Parts and Packing Description Part # PANEL CONTOL COVER TOP COVER BOTTOM PANEL REAR AC SOURCE FIXER LED HOLDER f (.mm) LED HOUSING KNOB ROTARY (BIG) KNOB ROTARY (SMALL) KNOB PUSH BUSHING PUSH KNOB PAD FOOT SCREW SERIAL NO, LABEL OWNER S MANUAL GIFT BOX POLYFORM WARRANTY CARD PAN-HEAD TAPPING SCREW (TWIN TOOTH)PAN-HEAD TAPPING SCREW FLAT-HEAD TAPPING SCREW (.-.) BAND-HEAD TAPPING SCREW BAND-HEAD TAPPING SCREW BAND-HEAD TAPPING SCREW/TW-E Printed Circuit Boards PRINTED CIRCUIT BOARD SP-- PRINTED CIRCUIT BOARD SP-- PRINTED CIRCUIT BOARD SP A 0- -0A -0A -0-00A Description Part # Page

6 Parts Lists - Main PCB 0 IC IC-,IC- IC IC IC IC IC IC IC IC0 ICs Designators Description Part # INTEGRATED CIRCUIT LB0N INTEGRATED CIRCUIT DD (BA,MA) INTEGRATED CIRCUIT TL0CP INTEGRATED CIRCUIT SSM00RS-REEL INTEGRATED CIRCUIT PICC0-0/P INTEGRATED CIRCUIT NJML0A INTEGRATED CIRCUIT NJML0A INTEGRATED CIRCUIT NJML0A INTEGRATED CIRCUIT NJMFA INTEGRATED CIRCUIT NJMFA Designators Description Part # LD Q, Q, Q Q- D-, D0- D- ZD, ZD SW SW SW VR VR VR- Electrical Parts LED (GREEN/RED) mm TRANSISTOR SA0 (SA) TRANSISTOR SC SILICON DIODE N RECTIFIER DIODE N00 ZENER DIODE / W.V ROTARY SWITCH -- L=mm SOUND FIELD PUSH BUTTON SWITCH LOCK;PC SW BASS ENHANCER PUSH BUTTON SWITCH UNLOCK;PC SW TEST NOISE ROTARY VR mm 0KA VOLUME ROTARY VR mm 0KB FADER ROTARY VR mm 0KA Parts Lists - Input/Output PCB IC- ICs Designators Description Part # INTEGRATED CIRCUIT DD (BA,MA) 0- Q- Q D- XLR- XLR- SW Electrical Parts Designators Description Part # TRANSISTOR SC TRANSISTOR SA0 (SA) SILICON DIODE N PHONE JACK XLR PHONE JACK XLR SLIDE SWITCH PC LIFT Parts Lists - Switch PCB Designators Description Part # DO SWO CO Electrical Parts LED (RED) mm POWER SWITCH CERAMIC CAPACITOR UL 0.00µ/00V Page

7 Main PCB Page

8 Input/Output PCB Page

9 Switch PCB Page

10 Schematic INPUT/OUTPUT PCB R 0 Q0 SC C 0uFV R R0 0K% +V R.K C R 0.0uF 0K% ICA NJMDD C -V 0.0uF R 0 C 0uFV R.k Q SC R k R R k XLR SUB R 0 Q SC C0 0uFV R R 0K% XLR R XLR L C 00pF ICA R 0K% NJMDD +V R0K% C 0.0uF R0K% C 0.0uF C -V 00pF R0K% C 00pF ICB R 0K% NJMDD R0K% R0K% R C 0K% 00pF SWa SWb C 0 X PLUG L R SHIELD X +V -V PLUG MAIN PCB X PLUG X R0.K R.K R.K +V C 0uFV PLUG -V Lm ZD N.V C D N -0dB -db 0dB +db +db +Vcc FLT LD LU0 GA RA R 00K GRD D N ZD N.V IN C 0uFV C 0uFV R K R 0K D N R 00 Lm VRA 0KA STEP VRB 0KA +V R.K IC LB0N C 0uFV R 0K R 00 -V ICA NJMDD +V -V ICB NJMDD Q SA Q SA ENHANCED BASS ICA ICB NJMDD C NJMDD 0uFV R R R.K% 0K% 0K% C0 +V R VR 0. 0K% 0KA ICA NJMDD R 0K% ICB NJMDD R 0K% C0 0. C n R R% R R% R C.K% 0. -V R 0.K% C n R K% C 0n R K% R.K% +V -V R.K% C 0. R 0R% ICA TL0CN C 00pF C 0. R 0R% D N D N +V -V C 0uFV C Lm ICB 0uFV TL0CN -V +V C R C 0uFV C0 0. C 0. R00 C 0uFV C 0. C 0. C n C uf 0V R R0 R% R R% R% R R% R K% SW SW C 0. C uf0v C uf0v C uf 0V C 0. R.K% 0 0 C ufv NP ICA NJMDD +V -V R0.K% IC SSM00 R.K% R.K% C C C0 ufv nf ICB NJMDD LOAD DATA LOAD RESET CLOCK D0 N R.K% R.M R0 0K C uf 0V R K% C uf 0V Lm SWA WAY VR 0KA SWB WAY 0 VR R0 R.K%.K% 0KA SWD WAY 0 C 0uFV VR 0KA C SWC WAY 0. R C.K% ufv NP C 0uFV R K% R.K% C uf 0V R.K% C uf0v R K% C 0. CH CH/DIAG C 0. S C CH VR 0KA C 0uFV C 0uFV R R K% 00K% C C C ufv NP ufv NP 0. ICA NJMDD ICB NJMDD C0 0. VRA R 0KB.K% ICA NJMDD VRB R 0KB.K% ICB NJMDD NOISE +V -V +V -V FADER +V R.K D N D N D N D N R K Q SC Lm +V -V R 0K Q SA R0 00K R 0K R K R K C 0. Q SC Q SC SUB LF RF SHIELD LS RS X PLUG X PLUG SUB LF RF SHIELD LS RS ICB NJMDD R K C.uFV +V R 0K% R 0K% R 0K% R 0K% D N +V C 0.0uF ICA NJMDD C -V 0.0uF Q SA R0 0K R 0 R 0K% ICB NJMDD R 0 R 0K% +V ICA NJMDD -V R 0 R0 0K% ICB NJMDD D N -V R 0K C 0uFV R 0 Q SC Q SC Q SC R 0 R0 0 R 0 R.K C 0uFV Q SC C 0uFV R.K R.k C 0uFV Q SC C 0uFV R.K R.k C 0uFV Q SC C 0uFV R.K R.k C0 0uFV Q SC R.k R k R R0 k R R k R0 R k R R k R R k R R k R R k XLR LF XLR RF XLR LS XLR RS AC AC SWITCH PCB D0 C /00V SW F POWER SW FUSE 0.A PT AC 0/0 V PT X0 PLUG X PLUG X C 0. C0 0. D N00 D N00 D N00 D N00 R.K IC NJMMA +Vin +Vout C 00uFV C 00uFV +V C C C C C 00uFV 0.0uF 0.0uF 0.0uF 0.0uF C C C C C 00uFV 0.0uF 0.0uF 0.0uF 0.0uF IC NJML0A +Vin +Vout IC NJML0A +Vin +Vout +V +V C 0. JP 0 +V IC VDD Vss RB RBO C RB RB RESET 0. RB RB 0 LOAD RC RC0 RC RC DATA RC RC PICC0 CLOCK FADER NOISE NOISE SW +V R K SW0-0 PLUG -Vin -Vout -Vin -Vout -V IC0 NJMMFA -V IC NJML0A Page