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RACK-MOUNTING    REQUIREMENTS

The amplifier is designed to fit a standard 19” rack. While mounting, make sure to

provide unhindered air access to the front and rear sides of the rack. The fan blows air
backwards. It is not necessary to leave empty space above or below the amplifier. Prior to
installing the amplifier into the rack, remove the rubber feet from the amplifier bottom panel.
Having done that, put the amplifier into the rack and secure it in place with four screws with
washers. The manufacturer strongly recommends to secure the amplifier rear brackets to
the rack, too. Where required, use a transition bracket (optional) to extend the mounting
depth of the amplifier mounted into the rack.

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Summary of Contents for GS Series

Page 1: ...PARK AUDIO II OWNER S MANUAL PROFESSIONAL POWER AMPLIFIERS GS series GS4 GS5 GS6 GS7 ...

Page 2: ...ACCESSORIES 1 Power Cord 1 ea 2 Spare air filter 2 ea 3 Owner s Manual 1 ea 4 Warranty 1 ea ...

Page 3: ...res 4 Functional Features 6 Amplifier Block Diagram 8 Front Panel 9 Rear Panel 10 Input and Output Connectors 12 Cabel Requirements 14 AC Power Requirements 15 Rack Mounting Requirements 16 Operating Modes 17 Maintenance 18 Specifications 19 Operating Conditions 20 Dimensions 21 ...

Page 4: ...ot touch thenon insulated cable parts connected to outputs of the unit in operation CAUTION The high sound pressure caused by the high output signal applied to speaker systems may endanger your hearing Please take care to observe the required safety precautions WARNINGSIGNS Important information Intended to warn the user about any important information contained in this Owner s Manual Hazardous vo...

Page 5: ...ts Do not place the unit near heating radiators furnaces or other heat emitting devices Do not connect this unit to an ungrounded power supply line Protect the power cord against damage Disconnect the unit from power supply in case of thunder or during downtime In case of malfunctioning caused by water or any other foreign matter inside or when theunithasbeendropped orthepowercordhasbeendamaged or...

Page 6: ...p control knobs individual for each channel Sensitivity slide switches 3 positions 0 775V 1 4V or 32dB fixed gain Individual for each channel Mode switch 3 position slide switch Operating modes available STEREO two channels drive two separate loads from two separate signal sources MONO two channels drive two separate loads from a single input signal source BRIDGE two channels drive a common load f...

Page 7: ...w frequency response diagrams Optoelectronic Clip Limiter Independent for each channel Reduces the level of the input signal and eliminates the distortion caused by hard clipping Removable Power Cord A powerCON 20A NEUTRIK connector for GS4 GS5 and a powerCON 32A NEUTRIKconnectorforGS6 GS7 This feature is provided for convenience of transportation and rack mounting 20Hz 50Hz 100Hz 200Hz 900Hz 10 5...

Page 8: ...r s schematics precludes transit of any clicks or noise during the power on off transition process ProtectionofloudspeakersagainstDCdamageisensuredforeachchannelbyindividualpower supplyunitswhicharedisabledintheeventofoutputDCvoltageoranypowerfulLFfluctuations In case the protection system becomes active on both channels and both power supply units become disabled all indicators go off The amplifi...

Page 9: ...the loudspeakers Overvoltage Protection System Relay system Used to protect the amplifier against overvoltage in the mains In case of incidental connection of the amplifier to incorrect wired mains whether on tour or on a stationary site the amplifier may be exposed to the inter phase voltage of 400 V In this case the protection system inhibits such overvoltage from reaching the power supply units...

Page 10: ... 2 INPUT THROUGH Power amplifier Power amplifier Class D Class D _ U U _ U Class D Class D MONO MODE LEVEL Clip Limiter 0 775V GAIN 45 Hz HI PASS FILTER 35Hz 45Hz 35 Hz OFF 1 4V 32 dB 45Hz LEVEL 0 775V GAIN 45 Hz HI PASS FILTER 35Hz 45Hz 35 Hz OFF 1 4V 32 dB 45Hz STEREO BRIDGE Clip Limiter 8 ...

Page 11: ...RLED Dust proof air filters LEVEL input signal attenuators LEVEL LEDs indicate the signal level dB at the amplifier output POWER switch Notes Upon power on the LEDs go on for a while This is normal Input level Attenuators dB attenuation 31 step control knobs WARNING The above knobs adjust the sensitivity level rather than the amplifier output power 9 ...

Page 12: ...cy 35 Hz or 45Hz or to disable the filter See Input Filter MODE switch MONO two channels drive two separate loads from a single input signal source STEREO two channels drive two separate loads from two separate input signal sources BRIDGE two channels drive a common load from a single input signal source INPUT Channel 1 balanced input XLR female Used to supply input signal to channel 1 channel 1 a...

Page 13: ...annel 1 2 bridge output used either to connect a load loudspeaker to Channel 1 or to connect it to both channels with a single SPEAKON connector as well as to connect a load loudspeaker to the amplifier in BRIDGE Mode Channel 2 output Used to connect a load loudspeaker to Channel 2 11 ...

Page 14: ...CTORS Input Connectors Use XLR male connectors to connect to the amplifier inputs and XLR female connectors to line outputs Output Connectors To connect loudspeakers to the outputs of GS4 or GS5 amplifier use SPEAKON NL2FC NL2FX NL4FC NL4FXorNLT4FX connectors UseaSPEAKONNL4FC NL4FX orNLT4FX connectorforbridgedconnectionorforconnectionofbothchannelswithasingle cable To connect loudspeakers to the o...

Page 15: ...ls with a single connector Out Out Channel 2 Out Channel 1 Out Channel 2 Out Channel 1 Out 1 1 1 2 2 1 1 2 2 1 Use a POZIDRIVE PZ1 screwdriver to connect cables to connectors Never use a PHILIPSscrewdriver Seethedetailedwiringinformationathttp www neutrik com CAUTION Neverattempttojumperorotherwiselinkupanypinsofoutputconnectors NL4FX for BRIDGE MODE Out Out 1 2 2 1 13 ...

Page 16: ...mping factor and possible fire hazard Sincethepowerappliedtotheloudspeakerisofprimaryconcerninsystemdesign we have included the table below to allow you determine the appropriate wire gauge for your application The table shows the percentage of the power loss in a 10 meter copper multiple core cable This tablereflectsthe powerlossasa percentageofthe outputpoweroftheamplifier applied to the load Us...

Page 17: ...nd wiring must be performed by a qualified technician Never use household type electric plugs Prior to plugging please make sure that there are no other devices consuming much ACcurrent asthenormaloperationofsuchseveraldevicesmaybeimpossible Intheevent of line voltage sag the unit will continue to operate normally albeit with less power The actual AC current consumption bythe amplifier depends on ...

Page 18: ...ace above or below the amplifier Prior to installing theamplifier into therack removethe rubber feetfrom the amplifierbottom panel Having done that put the amplifier into the rack and secure it in place with four screws with washers The manufacturer strongly recommends to secure the amplifier rear brackets to the rack too Where required use a transition bracket optional to extend the mounting dept...

Page 19: ...ut HI PASS FILTER switches to 45Hz or 35Hz depending on the specific application and or loudspeaker ratings However when it is necessary to obtain a linear frequency response to drive full range loudspeakers asinstudiosorcinemahouses setthisinputfilterswitchtoOFF SeetheInput Filter Section To adjust the level of input signal use a LEVEL control of each channel BRIDGE Mode Input signal is linked up...

Page 20: ...the filter Just grip it and pull Wash the filter with any detergent flush it with water let it dry and re install In case the filter is worn out replace the filter with a spare one supplied ATTENTION Never install a wet filter Do not dry the filter with hot air or expose it to direct sun rays 18 ...

Page 21: ...Ohms 230V 6300W bridge 4 Ohms 230V 5400W bridge 8Ohms 230V Total Harmonic Distortion 0 02 1 kHz Rnom 0 05 20 Hz 20 kHz Rnom Slew Rate 60V µs channel 120V µs bridge Frequency Response 20 Hz 20 kHz 0 2dB Pnom Rnom 10 Hz 60 kHz 1dB 1W Rnom Damping Factor 800 1kHz 8Ohms Channel Separation 60 dB 1kHz Signal to NoiseRatio 100 dB unweighted Sensitivity 0 775 V 1 4 V 32 dB switchable Input Impedance 10 kO...

Page 22: ...th 482 mm height w o feet 88mm 2U height plus feet 96 mm depth 506 mm depth in rack 461mm OPERATING CONDITIONS Air temperature 5 35 C Atmospheric pressure 86 6 106 7kPa 650 800 MMHG Relative humidity less than 80 20 ...

Page 23: ...482 465 440 max 45 461 76 88 96 506 DIMENSIONS 21 ...

Page 24: ...PARK AUDIO II Ltd Vinnytsia Ukraine www parkaudio2 com e mail park parkaudio2 com ...

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