Hafler GX2800 Owner'S Manual Download Page 24

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A DIVISION OF

ROCKFORD CORPORATION

546 SOUTH ROCKFORD DRIVE

TEMPE, ARIZONA 85281 U.S.A.

IN U.S.A. (480) 967-3565 / IN CANADA, (604) 942-1001

IN EUROPE, FAX 8503-9340-14 / IN JAPAN, FAX (81) 559-79-01265

MAN-3643-A
6/01 BM

Printed in U.S.A.

Summary of Contents for GX2800

Page 1: ......

Page 2: ...afety Manufacturer s Name Hafler Manufacturer s Address 546 South Rockford Drive Tempe Arizona 85281 Importer s Name Importer s Address Type of Equipment 2 channel Audio Power Amplifier Model No GX2800CE Serial Number Year of Manufacturing 2000 2001 2002 2003 2004 I the undersigned hereby declare that the equipment specified above conforms to the above Directive s and Standard s Place Hafler Date ...

Page 3: ...Requirements 12 Noise 12 AC Line 12 Audio Ground Chassis Float Switch 13 Output 13 Power Switch 13 OPERATION 14 17 Input 14 Daisy Chain Output 14 Earth Grounded Source Equipment 14 Floated Source Equipment 15 Delay 15 Crossover 15 Frequency 15 Phase 16 CD Horn Equalization 16 Biamp Stereo Switch 16 Level Controls 16 Stereo Mono 70V 100V Switch 16 Protect 17 Load Switch 17 Thermal 17 Clipping 17 Si...

Page 4: ...e blades of the equipment plug be able to fully insert into the mating receptacle Never remove the round grounding pin on the plug in an attempt to mate to a two wire ungrounded receptacle use a grounding adapter with the grounding tab or wire suitably connected to earth ground 11 NON USE PERIODS During periods of extended non use the power cord should be unplugged from the power source 12 CLEANIN...

Page 5: ...ina aguda etc 10 ATERRAMIENTO DEL CABLE DE CORRIENTE El cable de corriente es del tipo aterrado de tres hilos diseñado para reducir el riesgo de una descarga eléctrica procendent de un chasis energizado Se asume que su longitud es suficiente para la mayoría de usos del equipo El uso de extensiones y multienchufes no es recomendado a menos que tengan el amperaje adecuado para poder suministrar la c...

Page 6: ...chten Sie darauf das dies die erforderlichen Ströme bertragen können Benutzen Sie immer dreiadrige Verlängerungskable 11 ZEITRÄUME IN DENE DAS GERÄT NICHT GENUTZT WIRD Wird das Gerät über einen längeren Zeitraum nicht genutzt z B Urlaub ziehen Sie bitten den Netzstecker aus der Steckdose 12 REINIGEN Reinigen Sie das Gerät nur wie in der Bedienungsanleitung detailliert beschrieben 13 EINDRINGEN VON...

Page 7: ...sellée à moins dêtre en mesure de fournir la charge électrique requise à un fonctionement sans risque de tout matériel relié 11 PÉRIODES DE NON UTILISATON Durant les périodes de non utilisation la prise de courant ne devrait pas être branchée à une source d energie 12 NETTOYAGE Le matériel devrait être nettoyé en respectant les instructions indiquées 13 PENETRATION DES LIQUIDES Un attention partic...

Page 8: ...uesti non garantiscono la potenza sufficiente per i corretto fuinzionamento degli apparati connessi E altersì importante che vengano sempre impiegate prolunghe con la configurazaione a tre fili con terra 11 PERIODI DI NON UTILIZZO Durante lunghi periodi di non utilizzo staccare il cavo di alimen tazione 12 PULIZIA L apparato deve essere pulito solo come indicato dalle istruzioni 13 INGRESSO DI OGG...

Page 9: ...A weighted CMMR 75dB at 1kHz INPUT IMPEDANCE 47kΩ per phase DAMPING FACTOR 500 MAINS POWER REQUIREMENTS rated power both channels U version 100 140VAC 50 60Hz CE version 200 265VAC 50 60Hz POWER THERMAL REQUIREMENTS both channels driven Idle Condition 70W U version 1 0A 115VAC CE version 500mA 230VAC Thermal Dissipation 240 BTU hr Normal Operating Condition 1 8 rated power pink noise 570W U versio...

Page 10: ...ifier final output is selected to be at an appropriate voltage between A V and A V for each condition of the signal The output voltage and current capability are each potentially doubled and the power potentially quadrupled without having to increase the rail voltages fed to the devices One or more patents are expected from this technology WHAT ELSE DISTINGUISHES THESE AMPLIFIERS Constant power in...

Page 11: ... temperatures return to normal At that time the amplifier automatically turns back on and continues operating normally NOMAD protection The amplifier output MOSFETs are protected from excessive power dissipation by NOMAD protec tion circuitry NOMAD Non Multiplying Advance Decision limits the power when it measures signal voltage and current conditions that will exceed the pre determined power limi...

Page 12: ... 100V transformers 10 Output Binding Posts Connects the speaker array to the amplifier These jacks allow bare wire spade lugs or dual banana plugs to be connected to the amplifier 11 Internal Fans internal fans keep the amplifier circuitry cool Allow a minimum of 3 clearance on the front and back of the amplifier vents for adequate ventilation 12 Chassis Float ground switch Isolates Audio Ground f...

Page 13: ...Connections Connects the speaker array to the amplifier Individual Speakon connectors can be used for stereo connections or a single 4 wire Speakon connector can be used for stereo BIAMP or mono mode speaker connections 11 Internal Fans internal fans keep the amplifier circuitry cool Allow a minimum of 3 clearance on the front and back of the amplifier vents for adequate ventilation 12 Chassis Flo...

Page 14: ...nal 1 8th power normal operating conditions for continuous voice or music and 1 3rd power worst case hard clipped music for an amplifier with both channels driven The thermal dissipation specifications indicate how much heat will have to be removed from the amplifier environment under the three different conditions NOISE The GX2800 exceeds all relevant international emissions and immunity standard...

Page 15: ... a fuselink in the case of severe system faults To check this resistor remove all connectors from the amplifier and discon nect the AC main plug With the switch in the Chassis position use an ohmmeter to measure the 0Ω resistance between the earth ground pin of the AC mains plug and Audio Ground at either black terminal of the output binding posts By selecting the Float position the Audio Ground i...

Page 16: ...er by disconnecting the mains power cord from the AC outlet and checking for continuity between the earth ground pin and the audio output ground This test should be done with the equipment installed in the complete system including cables If the audio output ground is connected to the earth ground pin it is earth grounded equipment Consult the following diagrams for examples of recommended wiring ...

Page 17: ...f these switches must be selected If all the switches are OFF there will be no output signal The delay feature provides five sections of 2nd order all pass delay filters of 450µsec 10µsec each Unlike the more commonly used 1st order all pass the 2nd order filters achieve a constant delay time over the usable frequency range of 1Hz to 1kHz At frequencies higher than 1kHz the gain remains flat while...

Page 18: ... 32 detented positions that are calibrated in dB The maximum gain position is marked as the 0 dB position and the lower gain posi tions indicate the amount of attenuation relative to the maximum gain position in dB Minimum gain position is marked as Off and represents over 100dB of attenuation relative to the maximum gain position The CH B level control is used for all Bridged Mono configurations ...

Page 19: ...dance Load Switch Setting 5Ω 8Ω or higher 8Ω 3Ω 5Ω 4Ω 2Ω 3Ω or lower 2Ω If the Protect LED is illuminated for prolonged periods during normal operation select the next lower value Load Switch setting Continue until the Protect LED ceases to illuminate or lights infrequently This switch can be safely operated while the amplifier is running In 70V or 100V mode the Protect LED indicates there are too...

Page 20: ... Wire SPEAKON 6 Adjust CH A CH B level controls independently 1 Connect signal from source to CH B input 2 Move Biamp Stereo switch to BIAMP input mode 3 Move Stereo Mono switch to Stereo mode 4 Select desired speaker load 8Ω 4Ω 2Ω for each channel CH A and CH B loads do not need to match 5 Connect appropriate speaker load 8Ω 4Ω 2Ω to 5 way binding posts CE units Connect as shown above for Dual SP...

Page 21: ...nect to CH A output 6 CH B level control adjusts the mono output level BRIDGE MONO MODE CE SPEAKON Connector Wiring Connect to CH A output 1 Connect signal from source to CH B input 2 Biamp Stereo switch not active Stereo Mono switch overrides this switch when in mono 70V 100V mode 3 Move Stereo Mono switch to 70V mode 4 Select 70V load both channels 5 Connect parallel array of 70V transformer equ...

Page 22: ...ensitivity controls 100V mono output level Amplifier will clip at 100Vrms level 1 Connect signal from source to both CH A and CH B inputs 2 Move Biamp Stereo switch to Stereo mode 3 Move Stereo Mono switch to Stereo mode 4 Select 8Ω speaker load for each channel 5 Connect parallel array of 70V transformer equipped speakers up to 700W per channel to 5 way binding posts CE units Connect as shown abo...

Page 23: ...uct purchased outside the United States please contact your local dealer 4 Shipping charges to get the unit to Hafler 5 Any product which has had the serial number defaced altered or removed Limit on Implied Warranties Any implied warranties including warranties of fitness for use and merchantability are limited in duration to the period of the express warranty set forth above Some states do not a...

Page 24: ... OF ROCKFORD CORPORATION 546 SOUTH ROCKFORD DRIVE TEMPE ARIZONA 85281 U S A IN U S A 480 967 3565 IN CANADA 604 942 1001 IN EUROPE FAX 8503 9340 14 IN JAPAN FAX 81 559 79 01265 MAN 3643 A 6 01 BM Printed in U S A ...

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