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Table of Contents DECLARATION OF CONFORMITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 SPECIFICATIO
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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: EN55103 -1 (Emissions) EN55103 -2 (Immunity) EN60065 (Safety) 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.: GX2300 GX2600 GX2300CE GX2600CE Ser
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NOTICE - IMPORTANT SAFETY INFORMATION The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsu- lated "dangerous voltage" within the product's enclosure, that CAUTION may be of sufficient magnitude to constitute a risk of electric RISK OF ELECTRIC SHOCK shock to persons. DO NOT OPEN ! The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and WARNING: TO PRE
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ADVERTENCIA – INFORMACION DE SEGURIDAD IMPORTANTE El símbolo de flecha relámpago dentro de un triángulo equi- látero, es para alertar al usario de la presencia de “voltajes peli- grosos” no aislados en el interior del aparato, los cuales pueden PELIGRO ser de suficiente magnitud para constituir un riesgo de choque RIESGO DE DESCARGA eléctrico a las personas. ´ ´ ELECTRICA NO ABRIR. ! El símbolo de exclamación dentro de un triángulo equilátero, es ´ para alertar al usuario de la presencia de inst
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ACHTUNG – WICHTIGE SICHERHEITS – INFORMATIONEN Der Blitz mit dem Pfeil, in einem gleihschenkligen Dreieck, soll den benutzer vor unisolierter “gefährlicher Spannung” innerhalb des Gerätes warnen. ACHTUNG GEFAHR EINES Das Ausrufezeichen, in einem gleichschenkligen Dreieck, soll ELEKTRISCHEN SCHLAGS ¨ ! den Benutzer darauf aufmerksam machen, dab dem Gerät NICHT OFFNEN wichtige Operations - und Service - Informationen beigefügt sind. WARNUNG: Um die gefahr eines elektroschocks oder feuer zu ¨ verm
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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 pro- ATTENTION duit, qui pourrait être de magnitude suffisante au risque d'éléc- RISQUE DE CHOC ´ trocution. ELECTRIQUE NE PAS OUVRIR ! Le point d'exclamation, à l'intériur d'un triangle équilatéral, à pour objet de prévenir l'utilisateur de l'importance des i
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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 suffi- ciente per costituire rischio di shock elettrico alle persone. ATTENZIONE ATTENZIONE: Il punto esclamativo contentuto in un triangolo equilatero vuole RISCHIO DE SCARICHE ! avvertire l'utente della presenza di parti di servizio e di ELETTRICHE NON APRIRE manutenzione che sono dettagliate nel manuale di istruzioni. ATT
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Specifications All measurements taken at Normal Operating Conditions (i.e. 1/8th rated output power) unless noted otherwise. GX2300 GX2600 POWER RATING: 8Ω 20-20kHz @ 0.1% THD 300W x 2 CH 600W x 2 CH 4Ω 20-20kHz @ 0.2% THD 300W x 2 CH 600W x 2 CH 2Ω 20-20kHz @ 0.3% THD 300W x 2 CH 600W x 2 CH 70V 20-20kHz @ 0.2% THD 600W x 1 CH 1200W x 1 CH 100V 20-20kHz @ 0.2% THD 600W x 1 CH 1200W x 1 CH Bridged 8Ω 20-20kHz @ 0.2% THD 600W x 1 CH 1200W x 1 CH Bridged 4Ω 20-20kHz @ 0.3% THD 600W x 1 CH 1200W x
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-3 -3 -38 -38 (cont) Specifications 70V 4Ω 100v 8Ω 2Ω CH A Channel A Stereo Mono signal protect 70V 100V Load Power 2300 thermal clip 70V 4Ω 100v 8Ω 2Ω CH B Channel b DIMENSIONS: (2U) 3.5H" x 19"W x 18.5"D (2U) 3.5H" x 19"W x 18.5"D (rack handles add 1.25"D) (rack handles add 1.25"D) WEIGHT: 32lbs. (14.51 kg) 32lbs. (14.51 kg) Introduction The Hafler GX2300 and GX2600 amplifiers are two rack height, two channel, fan-cooled professional power amplifiers suitable for use in the most demanding sou
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WHAT ELSE DISTINGUISHES THESE AMPLIFIERS? Constant power into varying impedance. It takes twice as much current to develop a given wattage into 2Ω as it does into 8Ω —but only half the voltage. Many amplifiers quote a high output current at 2Ω but have an unpublished operating time measured in a handful of seconds—before thermal shutdown (hopefully) precludes thermal meltdown. Our solution for this is selectable rail voltages for optimizing the amplifier to the load. This is impractical for conv
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-3 -3 -38 -38 Design Features 70V 4Ω 100v 8Ω 2Ω CH A Channel A Stereo Mono signal protect 70V 100V Load Power 2300 thermal clip 70V 100v 4Ω 8Ω 2Ω CH B Channel b 1 9 2 3 4 7 8 12 180˚– HP – A Division of Delay Crossover LP – Rockford Corp. 0˚– must — Full – ® Tempe, AZ 85281 Phase choose 300W 2 6 2Ω – 8Ω GX2 3 00 CD EQ +0 one Made in the U.S.A. 300 W Stereo, 2Ω – 8Ω only 0”- +10 dB 6”- 600W Mono, 70V,100V Audio GND For 70V, 100V, or Mono 12”- Freq 500Hz – 18”- Chassis Float • Use CH B input 24”-
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Installation The GX2300/2600 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 GX2300/2600 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. The internal fans of the amplifier pull in fresh (
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AUDIO GROUND CHASSIS/FLOAT SWITCH In general, the Audio Ground of each amplifier should be connected to AC mains earth ground AT ONE POINT ONLY- either through the Chassis (by selecting the "Chassis" position) OR through the input cable (with the switch in the "Float" 1/ position, and pin 1 of the XLR or the sleeve of the " connected to the ground of the signal source unit.) 4 The Chassis/Float switch can be used as a means to troubleshoot ground loop problems, or to verify wiring. Ground loops
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Operation The amplifier will operate with either a balanced or unbalanced signal source. INPUT 1 The input jacks used on the GX2300/2600 are dual function connectors which accept / " TRS (Tip Ring Sleeve) or male 4 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 ohm- meter. The signal connections are as follows:
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XLR, 1/4" Mono Amplifier GROUNDED, 2 COAX OR TWISTED PAIR UNBALANCED SOURCE 3 Audio Ground Shield 1 Float 1/4" Mono: sleeve shorts — input to Audio Ground; XLR: short pins 1 & 3 together FLOATED SOURCE EQUIPMENT Source 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 ea
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DELAY (One of 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 the delay time gradually decreases to zero. The delay time is labeled in
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LEVEL CONTROLS The gain for each channel can be controlled individually using the front panel level control. The controls have 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 f
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LOAD SWITCH The Load Switch - located on the front panel - allows the amplifier power supply to be matched to the speaker load for more efficient, cooler running operation.This unique feature of the GX2300/2600 allows each channel to be configured for 2Ω , 4Ω , 8Ω , or 70V, 100V mono operation. (also 70V Dual Mono-GX2600 only). The power output and thermal performance of the amplifier remains consistent with all the possible combinations of the loads listed. In Stereo or Biamp mode the Load swi
