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Hafler GX2800 manual

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Table of contents for the manual

  • Page 1

    [...]

  • Page 2

    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 (Safety) Manufacturer’ s Name: Hafler Manufacturer’ s Address: 546 South Rockford Drive, T em[...]

  • Page 3

    – 1 – T able of Contents DECLARA TION OF CONFORMITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . inside cover SAFETY INFORMA TION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6 SPECIFICA TI[...]

  • Page 4

    – 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. HEED WARNINGS All warnings on the equ[...]

  • Page 5

    – 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 peligrosos” no aislados en el interior del aparato, los cuales pueden ser de suficiente magnitud para constituir un riesgo de choque eléctrico a las person[...]

  • Page 6

    – 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. 3. W[...]

  • Page 7

    – 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. 2. CONSERVER LE GUIDE DE L'UTILISA TEUR Le mode e'emploi et les mesures de s é curit é devraient ê tre conse[...]

  • Page 8

    – 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. 2. CONSERV A TE IL MANUALE Queste istruzioni riguardanti la sicurezza ed il funzionamento devono essere conservate come riferimen[...]

  • Page 9

    – 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, 0.2% THD Stereo 8 Ω 700W x 2 CH 600W x 2 CH 4 Ω 700W x 2 CH 600W x 2 CH 2 Ω 700W x 2 CH 600W x 2 CH 70V 700W x 2 CH 600W x 2 CH Bridged 8 Ω 1400W x 1 CH 1200W x 1 CH Bridged 4 Ω 1400[...]

  • Page 10

    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. These amplifiers offer outstanding effi- ciency by means of three technologies: high-efficiency TRANS • nova Class-G circuitry , high-frequency swit[...]

  • Page 11

    – 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. Thi[...]

  • Page 12

    – 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 . The LEDs are as follows: SIGNAL indicates if signal is present; CLIP illu[...]

  • Page 13

    – 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 LEDs are as follows: SIGNAL indicates if signal is present; CLIP il[...]

  • Page 14

    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[...]

  • Page 15

    – 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 the "Chassis" position) OR through the input cable (with the switch in the "Float" position, and pin 1 of the XLR or the sleeve o[...]

  • Page 16

    – 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. T o [...]

  • Page 17

    – 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. The input cable to this eq[...]

  • Page 18

    – 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. At the +10dB setting, the gain increases with frequency to[...]

  • Page 19

    – 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. The rated power into the mono load will be double the rating for a stereo load. See diagra[...]

  • Page 20

    – 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. 5. Connect appropriate speaker load 8 Ω /4 Ω /2 Ω to 5-way bi[...]

  • Page 21

    – 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. (16 Ω /8 Ω /4 Ω ) i.e. for a 4 Ω speaker load, select the 2 ?[...]

  • Page 22

    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 un[...]

  • Page 23

    – 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). This only applies to units s[...]

  • Page 24

    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.S.A.[...]