Owner’s Manual SR2300 SR2800 SR2300CE SR2800CE
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.
Table of Contents DECLARATION OF CONFORMITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . inside cover SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 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. SR2300 POWER OUTPUT: Stereo 8Ω 4Ω 2Ω 70V Bridged 8Ω Bridged 4Ω Bridged 70V Bridged 100V 1kHz, 1% THD 350W x 2 CH 350W x 2 CH 350W x 2 CH — 700W x 1 CH 700W x 1 CH 700W x 1 CH 700W x 1 CH FREQUENCY RESPONSE: SR2800 20-20kHz, 0.2% THD 300W x 2 CH 300W x 2 CH 300W x 2 CH — 600W x 1 CH 600W x 1 CH 600W x 1 CH 600W x 1 CH ±0.1dB, 10Hz-20kHz ±3dB, 0.
Specifications (cont) 18.5" Load Power 100V 70V 8Ω 4Ω 2Ω 3.5" 100V 70V 8Ω 4Ω 2Ω 19" DIMENSIONS: WEIGHT: (2U) 3.5H" x 19"W x 18.5"D (rack handles add 1.25"D) (2U) 3.5H" x 19"W x 18.5"D (rack handles add 1.25"D) 32lbs. (14.51 kg) 32lbs. (14.51 kg) Introduction The Hafler SR2300 and SR2800 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.
WHAT ELSE DISTINGUISHES THESE AMPLIFIERS? Constant power into varying impedances. 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.
Design Features – SR2300, SR2800 FRONT VIEW REAR VIEW – 3 – + 1 2 + – ® 600W 2Ω – 8Ω 700 W Stereo, 2Ω– 8Ω 1400W Mono, Audio GND Chassis CH A IN BIAMP STEREO CH A OUT Float 1200W 4Ω– 16Ω Mono,70V,100V – + For 70V, 100V, or Mono • Use CH B input • Load across RED terminals • Set load switches to one Class 2 wiring CH B IN (Mono) CH B OUT A Division of Rockford Corp. Tempe, AZ 85281 S R 2 8 0 0 Made in the U.S.A. + Attention: Utiliser un fusible de rechange de même type.
Design Features – SR2300CE, SR2800CE FRONT VIEW REAR VIEW PIN 1+ 12+ 2- SPKR CHA+ CHACHB+ CHBAudio GND CH A IN BIAMP CH A STEREO BUFFER THRU Chassis PIN 1+ 12+ 2- CH B IN CH B Class 2 wiring BUFFER Class 1 wiring THRU must be used in Mono ® 600W 2 – 8Ω Float A Division of Rockford Corp. Tempe, AZ 85281 S R 2 8 0 0 Made in the U.S.A. 700 W Stereo, 2Ω– 8Ω 1400W Mono, CH A OUT (MONO) SPKR NC NC CHB+ CHB- Attention: Utiliser un fusible de rechange de même type.
Installation The SR2300/2800 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 SR2300/2800 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. Maximumoperating 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 SR2300/2800 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.
BIAMP/STEREO SWITCH Turn amplifier off before operating this switch. This switch is located on the rear panel and selects either: Stereo mode- 2 input signals and 2 output signals. Biamp mode- 1 input signal and 2 output signals. Biamp mode is useful if a mono signal needs to be distributed to speakers of differing impedance or power level. The load switch for each channel can be selected for the appropriate load, and the level controls can be adjusted individually for each channel.
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 many speakers loading the array. THERMAL Indicates when the thermal protection has shut down the amplifier.
Wiring Diagrams STEREO MODE (SR2300/SR2800) Power Load 100V 70V 8Ω 4Ω 2Ω CE SPEAKON Connector Wiring 100V 70V 8Ω 4Ω 2Ω – 3 2 A Division of Rockford Corp. Tempe, AZ 85281 — – + 1 + 300W 2Ω – 8Ω S R 2 3 0 0 Made in the U.S.A.
BRIDGE MONO MODE (SR2300/SR2800) 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 (SR2300/SR2800) Power Load 100V 70V 8Ω 4Ω 2Ω CE SPEAKON Connector Wiring 100V 70V 8Ω 4Ω 2Ω 100V 100V 70V SR2300 70V SR2800 – 3 – + 1 2 + A Division of Rockford Corp. Tempe, AZ 85281 – 300W 2Ω – 8Ω S R 2 3 0 0 Made in the U.S.A.
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 SR2300 & SR2800 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-3642-A 5/01 BM Printed in U.S.A.
