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QSC Audio Products, Inc.

1675 MacArthur Boulevard Costa Mesa, California 92626 USA

“QSC” and the QSC logo are registered with the U.S. Patent and Trademark Office.

Содержание CX168

Страница 1: ...1 User Manual CX168 8 Channel Installed Sound Professional Audio Amplifier TD 000095 00 rev A TD 000095 00...

Страница 2: ...1 QSC Audio Products Inc QSC is a registered trademark of QSC Audio Products Inc QSC and the QSC logo are registered with the U S Patent and Trademark Office The Audio Precision logo is the property o...

Страница 3: ...necting to the Input Terminal Block Inputs 12 Connecting to the DataPort Inputs 13 Outputs Connecting the Outputs in Stereo or in Bridge Mode 14 How to use the 8 pin Output Connectors 15 OPERATION Pow...

Страница 4: ...s audio networking system enabling the system operator to control amplifier gain levels check the unit s clipping and thermal status plus monitor numerous additional system parameters Alternatively th...

Страница 5: ...5 INTRODUCTION REAR PANEL DIMENSIONS AND MOUNTING POINTS...

Страница 6: ...suits you application Use four screws and washers to secure the amplifier to the equipment rack rails Support the weight of the amplifier while securing it to the rails to avoid bending or distorting...

Страница 7: ...s and minimize noise Keep the front and rear vents clear to allow full air flow The correct AC line voltage is shown on the serial number label Fan Cooling The correct AC line voltage is shown on the...

Страница 8: ...els 7 8 are set for bridge mode The channels are grouped as follows Channels 1 and 2 Channels 3 and 4 Channels 5 and 6 Channels 7 and 8 You can set the operating mode for each group by setting that gr...

Страница 9: ...oth inputs of a channel pair are connected in parallel when the mode switch is set for parallel therefore connect only one input per channel pair when in bridge mode There are 4 possible channel pairs...

Страница 10: ...arily low frequency in nature low frequency or subwoofer drive this may be perceived as a rubbery effect on the audio If this is the case it may be preferable to turn the clip limiters off and let the...

Страница 11: ...s below its rating Unless you have low frequency filtering before the amplifier use the low frequency filter to protect your loudspeakers from cone over excursion caused by frequencies below the speak...

Страница 12: ...ed or 10k ohm unbalanced Balanced connection is recommended for all audio inputs Balanced signals are less prone to AC hum and other electrical noise Unbalanced signals can be suitable for short cable...

Страница 13: ...Gain controls will need to be set at their anticipated high level setting Use reduced level setting during setup test 2 If using the DataPort for audio input signals control of the audio level will be...

Страница 14: ...is connected to a bridged pair of outputs The channels must first be bridged by setting the mode configuration switches to the bridge settings Then con nect the speakers as shown on the right side of...

Страница 15: ...se a short circuit and cause protective muting of the amplifier Once all the required connections have been made to the terminal block connectors they may be inserted into the OUTPUTS jack on the rear...

Страница 16: ...amp etc 3 Make sure that the amplifier is not in STANDBY mode If the amplifier is being controlled by one of its DataPort connectors the amplifier may be in standby mode Verify the AC power status fro...

Страница 17: ...ncreased Occasional illumination normal for weak input signal strength Fully illuminated on normal If no indication Check AC power cord AC mains and that the DataPort is not being used to force the am...

Страница 18: ...tely 1dB change in amplifier gain To operate the gain control rotate the control s knob so that the desired level is achieved A small flat tipped screw driver 1 blade size is typically used Be sure no...

Страница 19: ...ity panel will still allow you to monitor all the channel status LED s and power LED The amplifier front panel will look like the illustration right after installing the security plate 4 Make sure the...

Страница 20: ...g of smaller accessories like the DSP 3 due to the high density of connectors on the rear panel but they may be connected via cables Using the DataPort OPERATION USING THE QSC DATAPORT CONNECTIONS Dat...

Страница 21: ...5 If using the DataPort for supplying the audio input signals to the amplifier we don t recommend using the terminal block input connectors even if they are connected to non operating audio sources Th...

Страница 22: ...ir 3 Ch 5 6 Room 4 Fed by channel pair 4 Ch 7 8 MODE switch configuration Ch 1 Ch 2 mode switch Clip Limiters ON Low Frequency Filter ON Low Frequency Setting 70 Hz Mode stereo Ch 3 Ch 4 mode switch s...

Страница 23: ...er no effect in bridge Ch 8 LF Filter no effect in bridge Channels 1 through 6 are configured for stereo mode because all channels are completely separate from one another Channels 7 and 8 are bridged...

Страница 24: ...2 Connect the two input signals to CH1 and to CH2 or signals may be provided from DataPort connection 3 Connect the two speakers one to channel 1 s output terminals one to channel 2 s output terminal...

Страница 25: ...A Note on Sound Pressure Levels Bridge Mode The amplifier s protective muting system guards against excessive internal temperatures With normal ventilation and loads the amplifier will handle any sig...

Страница 26: ...cabinets for wiring conve nience The exposed speaker connections make this method easy for small strings of speakers in one area Most PA type Multiple Lo Z Loads in Series speaker cabinets are NOT wi...

Страница 27: ...ching speaker loads of varying impedances no damage to the amplifier will result as long as the total impedance is within 4 to 16 ohms per channel dependant upon operating mode Most PA type speaker ca...

Страница 28: ...ician INDICATION SIGNAL LED S NOT RESPONDING TO INPUT SIGNAL LEVEL NOT LIGHTING If the green power indicator LED is lit but the signal LEDs do not light up at all check the input Make sure the signal...

Страница 29: ...pots in the system then avoid those spots Cables with faulty shielding are a common entry point for hum Use top quality cabling Another common source of magnetic fields are wall warts or pluggable tra...

Страница 30: ...HD 260 DYNAMIC HEADROOM 2 dB at 4 ohms DISTORTION SMPTE IM Less than 0 02 Typical 20 Hz 20 kHz 10 dB below rated power Less than 0 05 Typical 1 kHz and below full rated power Less than 0 02 FREQUENCY...

Страница 31: ...NUMBER LABEL ON REAR PANEL FOR THE SPECIFIED OPERATING VOLTAGE Configured at factory for either 100 120 or 230 VAC 50 60 Hz CURRENT CONSUMPTION 120 VAC typical both channels driven in Amperes Idle 0...

Страница 32: ...tale Postanschrift Direcci n postal QSC Audio Products Inc 1675 MacArthur Boulevard Costa Mesa CA 92626 1468 USA Telephone Numbers Num ros de t l phone Telefonnummern N meros de tel fono Main Number N...

Страница 33: ...33 NOTES...

Страница 34: ...34 NOTES...

Страница 35: ...35...

Страница 36: ...36 QSC Audio Products Inc 1675 MacArthur Boulevard Costa Mesa California 92626 USA QSC and the QSC logo are registered with the U S Patent and Trademark Office 2000 QSC Audio Products Inc...

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