Instruction/ maintenance manual of the product GX2800 Hafler
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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: .
– 1 – T able of Contents DECLARA TION OF CONFORMITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . inside cover SAFETY INFORMA TION . . . . . . . . . . . . . . . . . . . . . . . . . . . .
– 2 – NOTICE - IMPOR T ANT SAFETY INFORMA TION 1. READ INSTRUCTIONS All the safety and operating instructions of your Hafler equip- ment should be read before power is applied to the equipment. 2. RET AIN OWNER'S MANUAL These safety and operating instructions should be retained for future reference.
– 3 – ADVER TENCIA – INFORMACION DE SEGURIDAD IMPOR T ANTE El símbolo de flecha relámpago dentro de un triángulo equilátero, es para alertar al usario de la presencia de “voltajes peligros.
– 4 – ACHTUNG – WICHTIGE SICHERHEITS – INFORMA TIONEN 1. INSTRUKTIONEN LESEN Alle Sicherheits- und Operationshinweise Ihres Hafler Equipments sollten vor der Inbetriebnahme gelesen werden. 2. BETRIEBSANLEITUNG AUFBEWAHREN Bewahren Sie die Bedienungsanleitung sorgf ä ltig auf, damit Sie in dieser auch in Zukunft nachschlagen k ö nnen.
– 5 – A TTENTION: INFORMA TIONS IMPORT ANTES DE S É CURIT É 1. LIRE LES INSTRUCTIONS Le mode d'emploi et les mesures de s é curit é de votre é quipement Hafler devraient ê tre consult é s avant sa mise en marche.
– 6 – NOT ARE – IMPORT ANTI INFORMAZIONI SULLA SICUREZZA 1. LEGGETE LE ISTRUZIONI T utte le istruzioni riguardanti la sicurezza ed il funzionamento devono essere lette prima di applicare tensione all'apparato.
– 7 – All measurements taken at Normal Operating Conditions (i.e. 1/8th rated output power) unless noted otherwise. POWER OUTPUT : 1kHz, 1% THD 20-20kHz, 0.
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 commer cial sound installations.
– 9 – UNIVERSAL LINE VOL T AGE INPUT V oltage selection is provided in two bands: 100-140 volts and 200-265 volts, (both 50-60 Hz) via two quick-connect termi- nals 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.
– 10 – 1. Recessed Front Panel - Prevents switches and controls from accidentally being adjusted or broken. 2. Power Switch - T urns the amplifier ON and OFF 3. Power LEDs - V erifies that the amplifier channel is ON 4. Status LEDs - Displays the status of the amplifier .
– 11 – 1. Recessed Front Panel - Prevents switches and controls from acci- dentally being adjusted or broken. 2. Power Switch - T urns the amplifier ON and OFF 3. Power LEDs - V erifies that the amplifier channel is ON 4. Status LEDs - Displays the status of the amplifier .
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.
– 13 – AUDIO GROUND CHASSIS/FLOA T SWITCH In general, the Audio Ground of each amplifier should be connected to AC mains earth ground A T ONE POINT ONL Y - either through the Chassis (by selecting.
– 14 – 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 (T ip Ring Sleeve) or male XLR plugs. The amplifier will operate with either a balanced or unbalanced signal, from earth ground or floated source equip- ment.
– 15 – FLOA TED 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.
– 16 – PHASE The Phase switch will select either 0 ° (normal polarity) or 180 ° (inverted polarity) for the corresponding output signal. CD HORN EQUALIZA TION This adjustable high-frequency shelving circuit can be used to compensate for the roll-off of constant directivity (CD) horns.
– 17 – 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.
– 18 – 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 (8 Ω /4 Ω /2 Ω ) for each channel – CH A & CH B loads do not need to match.
– 19 – 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 (8 Ω /4 Ω /2 Ω ) to 1/2 the actual load impedance.
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.
– 21 – Rockford Corporation (Hafler Division) offers a limited warranty on Hafler products on the following terms: • Length of W arranty 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).
A DIVISION OF ROCKFORD CORPORA TION 546 SOUTH ROCKFORD DRIVE TEMPE, ARIZONA 85281 U.S.A. IN U.S.A. (480) 967-3565 / IN CANADA, (604) 942-1001 IN EUROPE, F AX 8503-9340-14 / IN JAPAN, F AX (81) 559-79-01265 ® MAN-3643-A 6/01 BM Printed in U.
An important point after buying a device Hafler GX2800 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Hafler GX2800 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Hafler GX2800 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Hafler GX2800 you will learn all the available features of the product, as well as information on its operation. The information that you get Hafler GX2800 will certainly help you make a decision on the purchase.
If you already are a holder of Hafler GX2800, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Hafler GX2800.
However, one of the most important roles played by the user manual is to help in solving problems with Hafler GX2800. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Hafler GX2800 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
