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16

4 Channel with Dual Mixed Mono Configuration 

(Q3000, Q4000)

ALL CROSSOVER 

SETTINGS IN THIS 

MODE SHOULD BE 

SET TO FULL RANGE.

SUBWOOFER
MINIMUM IMPEDANCE
8 OHMS

SUBWOOFER
MINIMUM IMPEDANCE
4-8 OHMS

FRONT SPEAKERS

REAR SPEAKERS

HIGH PASS

FILTER 

CAPACITORS

LOW PASS 
FILTER INDUCTOR

LOW PASS 
FILTER INDUCTOR

LEFT SPEAKER

4 OHM

LEFT SPEAKER

4 OHM

RIGHT SPEAKER
4 OHM

RIGHT SPEAKER
4 OHM

COMPONENT VALUES FOR

6dB PASSIVE CROSSOVER 

FREQUENCY    INDUCTOR       CAPACITOR

80 Hz
100 Hz
120 Hz
150 Hz

  

7.5 mH
6.5 mH
5.5 mH
4 mH

  

470 uF
330 uF
330 uF
220 uF

  

Summary of Contents for QRS Series

Page 1: ...QRS Series Amplifiers Owners Manual...

Page 2: ...we backup every QRS Series amplifier with our exclusive two year warranty which exemplifies our commitment to excellence in car audio musical reproduction See enclosed warranty card for details Pleas...

Page 3: ...uit This eliminates irritating speaker damaging turn on and turn off transients normally experienced with less expensive amplifiers BASS EQUALIZATION CIRCUITRY A narrow Q shelving equalization circuit...

Page 4: ...unk to exhaust the hot air which can build up in the trunk This will help keep the ambient temperature in the trunk as low as possible so that your amps work flawlessly and without any musical interru...

Page 5: ...ng room around the amplifier heat sink so that it can dissipate the heat it produces efficiently When mounting the amplifier on the trunk floor be sure to watch for your gas tank gas lines and electri...

Page 6: ...extremely sensitive to noise when the LEVEL is set to maximum and does not match your input signal The gain adjustments need to be made only once when first setting up the system If your unit has bee...

Page 7: ...cation with unobstructed airflow The QRS series amplifiers feature four mounting tabs located at the amplifiers four corners Using the supplied screws and grommets gently mount the amplifier in to pos...

Page 8: ...ke sure that there is no paint or other insulator blocking a good ground connection When installing multiple amplifiers mount them in close proximity so that they can all share the same ground point A...

Page 9: ...LONE FUNCTION you can control channels 1 2 from the processed signals of channels 3 4 thereby guaranteeing that all 4 channels are getting identical voltages and have their crossover settings identica...

Page 10: ...ks plugthemintoRCAinputJacks 1 and 2 of the amplifier The amplifier preamp circuit will automatically mix the signals to channels 3 and 4 thereby preserving your Left and Right Balance control but wit...

Page 11: ...unit have an additional subwoofer RCA output it would need to be attached to a separate subwoofer amplifier When configuring a four channel amplifier to a three channel system you can use an RCA Y ad...

Page 12: ...d any single channel below 2 ohm stereo For typical 6 x 9 or 6 5 or component speaker installs set the Crossover Mode Switch to Full Range Basic 4 Channel Configuration Q3000 Q4000 LEFT SPEAKER 2 4 OH...

Page 13: ...dged channel is no lower than 4 ohms Set the Crossover Mode Switch to Low Pass and begin by setting the crossover frequency control to 100Hz and tuning from there 4 Channel Amplifier Bridged to 2 Chan...

Page 14: ...Channel 4 negative side terminals Set the crossover mode switch of Channels 1 and 2 to either Full Range or High Pass while Channels 3 and 4 should be set to Low Pass Please see page 11 for RCA input...

Page 15: ...N LOW PASS POSITION COMPONENT VALUES FOR 6dB PASSIVE CROSSOVER FREQUENCY INDUCTOR CAPACITOR 80 Hz 100 Hz 120 Hz 150 Hz 7 5 mH 6 5 mH 5 5 mH 4 mH 470 uF 330 uF 330 uF 220 uF SUBWOOFER MINIMUM IMPEDANCE...

Page 16: ...R MINIMUM IMPEDANCE 4 8 OHMS FRONT SPEAKERS REAR SPEAKERS HIGH PASS FILTER CAPACITORS LOW PASS FILTER INDUCTOR LOW PASS FILTER INDUCTOR LEFT SPEAKER 4 OHM LEFT SPEAKER 4 OHM RIGHT SPEAKER 4 OHM RIGHT...

Page 17: ...l the channels and output will occur on all 5 channels There will be Left and Right balance Front to Rear fade with constant subwoofer If your head unit has three pairs of RCA outputs input Front Left...

Page 18: ...tereo Channel five minimum impedance is 2 ohm mono capable INPUT MODE SET TO 5 CHANNEL SUBWOOFER MINIMUM IMPEDANCE 2 4 OHMS COMPONENT SPEAKERS MINIMUM IMPEDANCE 2 4 OHMS COMPONENT SPEAKERS MINIMUM IMP...

Page 19: ...19 2 Channel Amplifier 2 Ohm 4 Ohm Stereo Q2000 LEFT SPEAKER 4 OHM OR 2 OHM RIGHT SPEAKER 4 OHM OR 2 OHM CROSSOVER MODE SWITCH IN FULL RANGE...

Page 20: ...20 2 Channel Amplifier 4 Ohm Bridged Q2000 CROSSOVER MODE SWITCH IN LOW PASS SUBWOOFER MINIMUM IMPEDANCE 4 OHMS...

Page 21: ...OFER 4 OHM SUBWOOFER 2 OHM MINIMUM LOAD OR The following models Q6000m Q7000m and Q8000m are 2 ohm mono block amplifiers No matter how many woofers you choose to wire up to these models the final impe...

Page 22: ...FER 2 OHM SUBWOOFER 1 OHM MINIMUM LOAD OR The Q9000m is a 1 ohm mono block Class D amplifier No matter how many woofers you choose to wire up to this amplifier the final impedance load should not fall...

Page 23: ...he amplifier to automatically start when ever it sense current or sound signal Use the Music Sense and DC sense settings when using the High Level input The DC setting will power up the amplifier when...

Page 24: ...ohm x 4 2 x 380 Watts RMS 4 ohm Mono Bridged Minimum THD at Rated Power 0 1 Frequency Response 10Hz 40KHz S N Ratio 97dB Damping Factor 150 100Hz Dimensions W x H x L 7 9 x 2 4 x 16 9 24 Q5000 Rated P...

Page 25: ...Subsonic Filter 10Hz 50Hz Fully Adjustable Bass EQ Boost Control Smart Turn On Circuit Full IC Controlled Protection Circuitry Dashboard Bass Remote Control Included RCA Preamp Line Output High Level...

Page 26: ...4 4 OHM 4 4 OHM 4 X DUAL VC 8 OHM SPEAKERS WITH SERIES VOICE COILS ALL IN PARALLEL SERIES SINGLE VOICE COIL SPEAKERS PARALLEL SINGLE VOICE COIL SPEAKERS 2 OHM TO AMPLIFIER 4 OHM 4 OHM 4 OHM TO AMPLIF...

Page 27: ...OHM TO AMPLIFIER 2 OHM TO AMPLIFIER 4 4 OHM 2 2 OHM 2 2 OHM Please note that the minimum impedance load for single Cadence QRS Series Amplifiers is 2 ohm stereo and 4 ohm mono bridged Lower impedance...

Page 28: ...t to change and or improvement without notice Though we tried our best to ensure that this manual is free and clear of errors please don t hold us responsible for printing errors Copyright by Cadence...

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