Hafler GX2300CE, GX2600 manual Installation, Cooling, POWER/THERMAL Requirements, Noise, AC Line

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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 (cool) air from the rear panel, and force the heated air out the front panel. This air flow must be as open and free of obstructions as possible. Also take care to exhaust the heated air away from the front panel intakes, so as not to recirculate and reheat the same air over and over again. In a rack system, make sure there is a significant source of fresh air to the rack. This can be achieved with air conditioning vents to the top of the rack, an open back that is well venti- lated, or rack panel fans/vents. In the case of rack panel fans/vents, the cooling will be most effective when the amplifier(s) are located as far away from the fans/vents as possible, to prevent air recirculation i.e. amplifiers at the bottom, fans/vents at top or vice-versa.When installing equipment in a rack, take care that the weight is distributed evenly. Hazardous conditions may be created by uneven weight distribution.

POWER/THERMAL REQUIREMENTS

For your convenience in planning for sufficient power and cooling in the amplifier environment, we have included AC mains current draw and thermal dissipation values in the Specifications Sheet. The specifications listed are for idle (no sig- nal), 1/8th power (“normal operating conditions” for continuous voice or music), and 1/3rd power (worst-case hard-clipped music) for an amplifier with both channels driven. The thermal dissipation specifications indicate how much heat will have to be removed from the amplifier environment under the three different conditions.

NOISE

The GX2300/2600 exceeds all relevant international emissions and immunity standards, and has further been specifically designed to minimize interference in Pro-Audio environments. Regardless of this fact, amplifiers consume, process and deliver significant amounts of power over a wide frequency range. Standard practice calls for caution to be exercised in the placement of signal cables and signal-level components such as mic preamps, tuners, etc., to avoid inducing noise in the low level circuitry. Possible sources of noise are: AC current in shared power lines, magnetic interference between adjacent rack-mount units, high current audio speaker cables. In general avoid the following:

Mounting sensitive signal processing equipment directly above or below amplifiers.

Sharing AC power outlets between amplifiers and signal processing equipment.

Bundling signal cables with speaker cables or AC power cords.

!AC LINE

Connect the unit to a properly rated supply circuit. The GX2300/2600 can be configured to operate within the following AC

mains voltage ranges:

100-140VAC, 50-60Hz (115VAC, 60Hz typ.)

200-260VAC, 50-60Hz (230VAC, 50Hz typ.)

Connection is made by 14 gauge, IEC type 320, grounded line cord. For safety considerations only a properly grounded

(earthed) receptacle should be used. If a grounded circuit is not available, do not break off the ground pin; use the proper

adapter plug for a two wire receptacle. The AC mains fuse is accessible at the rear panel of the amplifier. If this fuse blows

replace it only with the same type and rating fuse. The correct replacement fuse value is printed on the rear of the amplifier,

and on the specifications page.

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Contents Page Page Table of Contents Declaration of Conformity U T I O N L I G R O H T U N G T E N T I O N Notare Importanti Informazioni Sulla Sicurezza Specifications GX2300 GX2600Introduction Technical Design FeaturesWHY a NEW Amplifier TOPOLOGY? Protection Circuits What Else Distinguishes These AMPLIFIERS?Universal Line Voltage Input Design Features Biamp StereoCooling InstallationPOWER/THERMAL Requirements NoiseOutput Audio Ground CHASSIS/FLOAT SwitchPower Switch Earth Grounded Source Equipment OperationInput Floated Source Equipment Floated equipmentCD Horn Equalization DelayPhase CrossoverLevel Controls STEREO/BIAMP SwitchSTEREO/MONO 70V 100V Switch ProtectThermal Load SwitchSignal ClippingWiring Diagrams Stereo Mode GX2300/GX2600Bridge Mono Mode GX2300/GX2600 2300100V Mono Mode GX2300/GX2600 70V Stereo Mode GX2600 onlyService Policy and Limited Warranty What is CoveredLayouts EMI Filter Crossover CD EQTime DELAY/PHASE Inverter Schematic Diagrams Bridge RectifierPC-2460-e.sch-1 Crossover CD EQ Time DELAY/PHASE Inverter Amplifier C600maualB.sch-1 Protection C600maualB.sch-2 High Voltage Control Page Housekeeping Control C600maualB.sch-6 Input C600maualB.sch-8 Power C600maualB.sch-5 MAN-2987-A 6/00 MJT

GX2600CE, GX2300, GX2600, GX2300CE specifications

The Hafler GX series amplifiers, including the GX2300CE, GX2600, GX2300, and GX2600CE, represent a sophisticated blend of power and precision in audio amplification technology. Designed for both professional and home audio use, these amplifiers deliver high-quality sound reproduction while maintaining reliability and durability.

The GX2300CE and GX2600 are particularly noted for their robust power output. The GX2300CE can produce an impressive output of 125 watts per channel into 8 ohms, making it suitable for driving a wide range of speakers with ease. The GX2600 pushes this power even further, targeting serious audiophiles who demand more dynamics and headroom from their audio systems. With a 220 watts per channel output at 8 ohms, it is built to handle even the most demanding acoustic environments.

One of the standout features of these amplifiers is their use of Hafler's proprietary "Current Feedback" technology. This innovative design allows for greater bandwidth and reduced distortion, ensuring that the audio signal remains true to the original source. The result is a clear, transparent sound that enhances the listening experience. Alongside this technology, the amplifiers come equipped with multiple input options, including XLR and RCA inputs, providing flexibility for various audio sources.

In terms of build quality, the GX series showcases Hafler’s commitment to durability and aesthetics. The rugged chassis is designed not only to withstand the rigors of both studio and stage environments but also to minimize resonance and external vibrations. The front panel is user-friendly, with easily accessible controls for volume and input selection, enhancing convenience in any audio setup.

The GX2300 and GX2600 also feature advanced thermal protection circuitry, preventing overheating and ensuring long-term reliability. This feature is particularly beneficial for extended playback sessions or in high-demand situations when the amplifiers are pushed to their limits.

In conclusion, the Hafler GX2300CE, GX2600, GX2300, and GX2600CE amplifiers are engineered to provide exceptional audio clarity, robust power, and advanced technology. Whether used in a professional studio or a home theater system, these amplifiers stand out for their performance and adaptability, making them a favored choice among audio enthusiasts and professionals alike.
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