Declaration of Conformity Application of Council Directive: 73/23/EEC (low voltage directive) Application of Council Directive: 89/336/EEC (EMC Directive) Standard(s) to which Conformity is Declared: EN55103 -1 (Emissions) EN55103 -2 (Immunity) EN60065 Manufacturer’s Name: (Safety) 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.
Table of Contents DECLARATION OF CONFORMITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . inside cover SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 INTRODUCTION . . . .
NOTICE - IMPORTANT SAFETY INFORMATION The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure, that may be of sufficient magnitude to constitute a risk of electric shock to persons.
ADVERTENCIA – INFORMACION DE SEGURIDAD IMPORTANTE El símbolo de flecha relámpago dentro de un triángulo equilátero, es para alertar al usario de la presencia de “voltajes peligrosos” no aislados en el interior del aparato, los cuales pueden ser de suficiente magnitud para constituir un riesgo de choque eléctrico a las personas.
ACHTUNG – WICHTIGE SICHERHEITS – INFORMATIONEN Der Blitz mit dem Pfeil, in einem gleihschenkligen Dreieck, soll den benutzer vor unisolierter “gefährlicher Spannung” innerhalb des Gerätes warnen. Das Ausrufezeichen, in einem gleichschenkligen Dreieck, soll den Benutzer darauf aufmerksam machen, dab dem Gerät wichtige Operations - und Service Informationen beigefügt sind.
ATTENTION: INFORMATIONS IMPORTANTES DE SÉCURITÉ La lumière clignotante du symbole de la flêche à l'intérieur d'un triangle équilatéral, à pour objet d'alerter l'utilisateur de la présence “d'un voltage dangereux” non-isolé à l'intérieur du produit, qui pourrait être de magnitude suffisante au risque d'éléctrocution. Le point d'exclamation, à l'intériur d'un triangle équilatéral, à pour objet de prévenir l'utilisateur de l'importance des instructions de fonctionement et de maintenance, jointes à l'appareil.
NOTARE – IMPORTANTI INFORMAZIONI SULLA SICUREZZA Il simbolo del fulmine in un triangolo equilatero vuole avvertire della presenza di tensioni elevate non isolate e di valore sufficiente per costituire rischio di shock elettrico alle persone. Il punto esclamativo contentuto in un triangolo equilatero vuole avvertire l'utente della presenza di parti di servizio e di manutenzione che sono dettagliate nel manuale di istruzioni.
Specifications All measurements taken at Normal Operating Conditions (i.e. 1/8th rated output power) unless noted otherwise. POWER OUTPUT: Stereo 8Ω 4Ω 2Ω 70V Bridged 8Ω Bridged 4Ω Bridged 70V Bridged 100V FREQUENCY RESPONSE: 1kHz, 1% THD 700W x 2 CH 700W x 2 CH 700W x 2 CH 700W x 2 CH 1400W x 1 CH 1400W x 1 CH 1400W x 1 CH 1400W x 1 CH 20-20kHz, 0.2% THD 600W x 2 CH 600W x 2 CH 600W x 2 CH 600W x 2 CH 1200W x 1 CH 1200W x 1 CH 1200W x 1 CH 1200W x 1 CH ±0.1dB, 10Hz-20kHz ±3dB, 0.
Introduction The Hafler GX2800 amplifiers are two rack height, two channel, fan-cooled professional power amplifiers suitable for use in the most demanding sound reinforcement and commercial sound installations. These amplifiers offer outstanding efficiency by means of three technologies: high-efficiency TRANS•nova Class-G circuitry, high-frequency switching power supplies, and constant power output/load impedance selection switches.
UNIVERSAL LINE VOLTAGE INPUT Voltage selection is provided in two bands: 100-140 volts and 200-265 volts, (both 50-60 Hz) via two quick-connect terminals located on the EMI filter board, accessed by removing the top cover. The current-mode control system automatically corrects for the bulk of power line variation with each band. This allows most of the PWM action to be reserved for programming and regulation of output voltages.
Design Features – GX2800 1. Recessed Front Panel - Prevents switches and controls from accidentally being adjusted or broken. 2. Power Switch - Turns the amplifier ON and OFF 3. Power LEDs - Verifies that the amplifier channel is ON 4. Status LEDs - Displays the status of the amplifier.
Design Features – GX2800CE 1. Recessed Front Panel - Prevents switches and controls from accidentally being adjusted or broken. 2. Power Switch - Turns the amplifier ON and OFF 3. Power LEDs - Verifies that the amplifier channel is ON 4. Status LEDs - Displays the status of the amplifier.
Installation The GX2800 is a standard 2U (2 rack height) 19" rack-mount unit, with both front and rear rack mounting ears. In portable systems, the amplifier must be supported at both the front and rear. ! COOLING The GX2800 uses forced-air cooling (fan cooling) to remove the heat produced during normal operation. Free air flow at the mounting location is a critical factor in accomplishing long-term reliable operation of the amplifier. Maximum operating ambient temperature is 40°.
AUDIO GROUND CHASSIS/FLOAT SWITCH In general, the Audio Ground of each amplifier should be connected to AC mains earth ground AT ONE POINT ONLYeither through the Chassis (by selecting the "Chassis" position) OR through the input cable (with the switch in the "Float" position, and pin 1 of the XLR or the sleeve of the 1/4" connected to the ground of the signal source unit.) The Chassis/Float switch can be used as a means to troubleshoot ground loop problems, or to verify wiring.
Operation The amplifier will operate with either a balanced or unbalanced signal source. INPUT The input jacks used on the GX2800 are dual function connectors which accept 1/4" TRS (Tip Ring Sleeve) or male XLR plugs. The amplifier will operate with either a balanced or unbalanced signal, from earth ground or floated source equipment. To determine if your equipment is earth grounded or floated, consult the owner’s manual or test with an ohmmeter.
FLOATED EQUIPMENT Units with a 2-pin mains power cord have no means to connect the audio output ground to earth ground, so usually the audio output ground is floated from earth ground. However, this does not insure that when installed in a system, the audio output ground will remain floated from earth ground. The input cable to this equipment may already be connected to earth ground earlier in the audio chain, and it will typically be carried straight through to the output.
PHASE The Phase switch will select either 0° (normal polarity) or 180° (inverted polarity) for the corresponding output signal. CD HORN EQUALIZATION This adjustable high-frequency shelving circuit can be used to compensate for the roll-off of constant directivity (CD) horns. At the +10dB setting, the gain increases with frequency to about +3dB at 3kHz, and finally to +12dB at 20kHz. +10dB 6 2 BIAMP/STEREO SWITCH Turn amplifier off before operating this switch.
70V and 100V Mono mode also use the CH B input connector and level control only. The 70V or 100V speaker array load should be connected across the red terminals of the output connectors. Set both load switches to the appropriate 70V or 100V value. The rated power into the mono load will be double the rating for a stereo load. See diagram PROTECT The red "Protect" LED on the front panel indicates that the NOMAD protection circuit has been activated, and is limiting the output power of the amplifier.
Wiring Diagrams STEREO MODE CE SPEAKON Connector Wiring 1. Connect signal from source to both CH A and CH B inputs. 2. Move Biamp/Stereo switch to Stereo input mode. 3. Move Stereo/Mono switch to Stereo mode. 4. Select desired speaker load (8Ω/4Ω/2Ω) for each channel – CH A & 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 SPEAKONs or Single 4-Wire SPEAKON. 6. Adjust CH A & CH B level controls independently.
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 MONO mode. 4. Set load switches (8Ω/4Ω/2Ω) to 1/2 the actual load impedance. (16Ω/8Ω/4Ω) i.e. for a 4Ω speaker load, select the 2Ω setting for both CH A and CH B Load Switches 5.
100V 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 100V mode. 4. Select 100V load, both channels. 5. Connect parallel array of 100V transformer-equipped speakers across the red terminals of the 5-way binding posts. CE units: Wire SPEAKON as shown above and connect to CH A output. 6.
Service Policy and Limited Warranty Rockford Corporation (Hafler Division) offers a limited warranty on Hafler products on the following terms: • Length of Warranty 5 years on GX2800 3 years on B-Stock electronics (receipts are required) • What is Covered This warranty applies only to products sold to the original owner (non-transferable). This only applies to units sold in the Continental United States.
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.
