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Quantum Audio QA3X, Инструкция по установке и руководство пользователя, Страница: 15 / 16

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Problem:

Midrange speakers “pop” with loud passages.

Solution:

High-Pass Frequency Control is set too low.
Gain Controls on amplifiers are set incorrectly. Reduce the gain setting on high

frequency amplifier.

Problem:

One channel does not operate.

Solution:

Swap left and right connections at the source unit.  If the problem trades sides

in the vehicle, then the source unit is the defective.  If the problem stays on the

same side, proceed on.
Swap left and right connections at the input to the crossover.  If the problem

trades sides in the vehicle, then the wiring is defective between the source unit

and the crossover.  If the problem stays on the same side, proceed on.

Swap the left and right High-Pass RCAs at the output of the crossover.  If the

problem trades sides in the vehicle, then the crossover is defective.   If the

problem stays on the same side, proceed on.
Swap the left and right High-Pass RCAs at the amplifier input.  If the problem

trades sides in the vehicle, then the RCA cable is defective.  If the problem

stays on the same side, proceed on.
Swap the left and right speaker connections at the output of the High-Pass

amplifier.  If the problem trades sides in the vehicle, then the amplifier is

defective.  If the problem stays on the same side, then the speaker or speaker

wiring is defective.

QA3X SPECIFICATIONS

Power Source:

Input Current:

Distortion:

Frequency Response:

S/N Ratio:

Seperation:

Crossover Slope:

Input Impedance:

Output Impedance:

Output Gain:

Output Voltage Level:

Dimensions:

14.4 Volts DC

0.5 Amp Max

0.01% THD

10Hz - 30kHz - 3dB

>100dB

60dB

18dB per octave

20K Ohms

100 Ohms

1:2 (+6dB)

5 volts max

152mm x 180mm x 43mm

Troubleshooting Your System / Product Specifications

Troubleshooting

15

www.quantumaudio.net

Содержание QA3X

Страница 1: ...3 WAY ELECTRONIC CROSSOVER INSTALLATION INSTRUCTIONS OWNER S MANUAL QA3X tel 956 428 4263 fax 956 421 4513 www quantumaudio net ...

Страница 2: ...ualizer Frequency Multiplier for High Pass Crossover Selectable 41Hz 60Hz Subwoofer Crossover 18dB Subwoofer Bass Boost Remote Subwoofer Level Control Gold Plated RCA Input Output Connectors Power on LED The Quantum QA3X has theability to accept one two or three sets of RCA cables as an input Both thefront andrearoutputs of the QA3X make use of a built in 18dB per octave electronic crossover that ...

Страница 3: ...11 Sub Bass Boost Level 12 Ground Input Connector 13 Battery 12V Input Connector 14 Remote Turn On Input 15 Front RCA Output 16 Front Output Level 17 Rear RCA Output 18 Rear Output Level 19 Phase Switch 20 Sub RCA Output 21 Sub Output Level The top panel of the QA3X contains controls for the crossover and output levels as shown below The QA3X includes the following features 3 FRONT PANEL CONTROLS ...

Страница 4: ...t acts much like an equalizer with adjustable gain from 0 18dB with a center frequency adjustable from 25Hz 100Hz Use this feature to tune low frequency audio response to compensate for a less than ideal subwoofer enclosure design The added boost produces rich full bass tones that are normally difficult to reproduce in the car audio environment Use the Freq dial to set the Boost Freq and the Sub B...

Страница 5: ...so the front panel controls will be accessible after installation In addition observe the following precautions 1 Mount the crossover on a rigid surface Do not install the crossover on plastic or other combustible materials 2 Prior to drilling make sure proposed mounting holes will not cut into the fuel tank fuel lines brake lines under chassis or electrical wiring 3 Avoid mounting to subwoofer en...

Страница 6: ...onnections Connect the crossovers positive lead via a fuse directly to the positive terminal on the battery Use red insulated 18 gauge or larger wire for the crossover s positive power lead and the same gauge black insulated wire for the ground 5 To avoid noise problems run the crossover s positive power lead and the amplifier s positive power lead along one side of the vehicle to the battery Run ...

Страница 7: ...S CAR BATTERY 12V IN LINE POWER FUSE M OUNTED WITHIN 12 FROM BATTERY RECOM M ENDED NOT PROVIDED 94 7 RADIO S REMOTE TURN ON OUTPUT REAR RCA OUTPUT FRONT RCA OUTPUT REAR RCA INPUT FRONT RCA INPUT 7 www quantumaudio net ...

Страница 8: ...or front speakers rear speakers and subwoofer s APPLICATIONS CAR BATTERY 12V IN LINE POWER FUSE M OUNTED WITHIN 12 FROM BATTERY RECOM M ENDED NOT PROVIDED 94 7 RADIO S REMOTE TURN ON OUTPUT FRONT RCA IN REAR RCA IN SUB RCA IN Optional Input SUB AMP REAR AMP FRONT AMP SUB RCA OUT REAR RCA OUT FRONT RCA OUT 8 www quantumaudio net ...

Страница 9: ... REAR RCA IN SUB RCA IN FRONT RCA IN REAR RCA IN FRONT RCA IN For 2 channel input configure switches as shown For 4 channel input with front and rear fade configure switches as shown For front and rear fade with dedicated subwoofer input configure switches as shown 9 www quantumaudio net ...

Страница 10: ...xception will be when the front rear speaker is too small to play down to a very low frequency and the subwoofer sounds distorted trying to play up to meet the front rear speaker This may require a gap or difference between the high and low settings Although not ideal this is sometimes neccessary to make the system work as well as possible Setting the Front Output Level Before setting front level ...

Страница 11: ...lifier gains are at their minimum settings 3 With the volume set at a medium level slowly increase the sub level control to the point where the subwoofer volume blends with the system 4 If maximum sub output level does not provide enough subwoofer volume slightly increase the subwoofer amplifier gain until desired level is reached 5 Fine tune the bass response using the Sub Boost Controls 6 Plug t...

Страница 12: ...ted amplifiers for tweeters midranges and subwoofer s APPLICATIONS D CAR BATTERY 12V IN LINE POWER FUSE M OUNTED WITHIN 12 FROM BATTERY RECOM M ENDE NOT PROVIDED 94 7 RADIO S REMOTE TURN ON OUTPUT FRONT RCA IN SUB AMP MID AMP HIGH AMP SUB RCA OUT MID RCA OUT HIGH RCA OUT 12 www quantumaudio net ...

Страница 13: ... require a gap or difference between the high and low settings Although not ideal this is sometimes necessary to make the system work as well as possible Setting the Front and Rear Output Levels Before setting front and rear level controls disconnect the subwoofer output and follow the directions below 1 Be sure the front and rear High Pass crossovers are set properly NOTE When the QA3X is used in...

Страница 14: ...Slowly adjust the Sub Boost Frequency control up or down to realize the best bass response CAUTION This feature can make a subwoofer put out more energy at very low frequencies Be cautious with this control because with too much boost at low frequencies the power handling of the subwoofer will be decreased This is a subjective setting and will depend on your personal listening preferences If you h...

Страница 15: ...des in the vehicle then the crossover is defective If the problem stays on the same side proceed on Swap the left and right High Pass RCAs at the amplifier input If the problem trades sides in the vehicle then the RCA cable is defective If the problem stays on the same side proceed on Swap the left and right speaker connections at the output of the High Pass amplifier If the problem trades sides i...

Страница 16: ...Tel 956 428 4263 Fax 956 421 4513 www quantumaudio net ...

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