Hafler SR2600, SR2300 owner manual Thermal, Clipping, Signal

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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. After cooling sufficiently, the amplifier will automatical- ly recover and continue operating.

CLIPPING

Lights up when the output or input signal reaches the maximum allowable voltage, and “clips” the output signal. To deter- mine whether the signal is clipping at the input or the output of the amplifier, perform this test: Turn the level control all the way “OFF.“ If the clipping continues then the signal is clipping at the amplifier input. Input clipping occurs at 3Vrms (sine), and can be eliminated by attenuating the signal before it reaches the amplifier. Output clipping can be eliminated by turn- ing down the amplifier level control. Since this circuit triggers off the internal error signal of the amplifier, it automatically adjusts for any combination of speaker impedance or Load Switch setting.

SIGNAL

Monitors the amplifier output and indicates when a signal of at least 1 Vrms is present. A number of situations could exist where the input cable is properly connected to the signal source, but the Signal LED does not illuminate, such as:

Level control is not high enough to amplify the output signal to 1 Vrms.

Source signal is off, or lower than normal.

Input cable is not connected to CH B while in Biamp, Mono, 70V or 100V mode.

Biamp or Mono switch is not selected when using a single input cable.

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Contents SR2300 SR2600 Page Table of Contents Declaration of Conformity U T I O N L I G R O Achtung Wichtige Sicherheits Informationen T E N T I O N Notare Importanti Informazioni Sulla Sicurezza SR2300 SR2600 SpecificationsWHY a NEW Amplifier TOPOLOGY? Technical Design FeaturesIntroduction Universal Line Voltage Input What Else Distinguishes These AMPLIFIERS?Protection Circuits Front View Rear View Design FeaturesNoise InstallationPOWER/THERMAL Requirements CoolingPower Switch Audio Ground CHASSIS/FLOAT SwitchOutput Earth Grounded Source Equipment OperationInput Daisy Chain OutputLevel Controls Floated EquipmentProtect BIAMP/STEREO SwitchSTEREO/MONO 70V 100V Switch Load SwitchThermal SignalClipping Stereo Mode SR2300/SR2600 Wiring Diagrams70V Mono Mode SR2300/SR2600 Bridge Mono Mode SR2300/SR260070V Stereo Mode SR2600 only 100V Mono Mode SR2300/SR2600What is Covered Service Policy and Limited WarrantyLayouts EMI Filter Schematic Diagrams Bridge Rectifier Amplifier C600maualB.sch-1 Protection C600maualB.sch-2 High Voltage Control C600maualB.sch-3 Housekeeping Control C600maualB.sch-6 Input C600maualB.sch-8 Power C600maualB.sch-5 MAN-2568C 5/00 MJT

SR2600, SR2300 specifications

The Hafler SR2300 and SR2600 are high-performance power amplifiers designed for audio enthusiasts seeking to elevate their listening experience. These models are renowned for their remarkable sound quality, powerful performance, and innovative technologies, making them ideal for both home audio systems and professional applications.

Starting with the Hafler SR2300, this amplifier is a two-channel powerhouse capable of delivering up to 150 watts per channel at 8 ohms, and 225 watts per channel at 4 ohms. One of the key features of the SR2300 is its Class AB design, which strikes an optimal balance between efficiency and sound fidelity. The design minimizes distortion, allowing for clear and precise audio reproduction across a wide frequency range. The amplifier also boasts a frequency response of 20 Hz to 20 kHz, ensuring that both low and high frequencies are accurately represented.

The SR2300 is equipped with a high-performance, toroidal power transformer, which enhances its ability to deliver a stable power supply to the output stages, resulting in improved dynamic range and transient response. Additionally, the SR2300 features comprehensive protection circuitry, safeguarding the amplifier from overheating and short circuits, ensuring reliable operation even under demanding conditions.

In contrast, the Hafler SR2600 offers even more power and versatility, pushing out up to 250 watts per channel at 8 ohms and 400 watts at 4 ohms. This model maintains the same renowned Class AB architecture as the SR2300 but integrates additional features such as a balanced XLR input for enhanced connectivity and reduced noise, which is invaluable in professional audio settings. The SR2600 also incorporates advanced thermal management systems, allowing it to operate efficiently even during prolonged use at higher output levels.

Both models come with customizable gain control options, allowing users to tailor the output to their specific needs. Whether being used to drive high-efficiency speakers in a home theater setup or powering professional studio monitors, the Hafler SR2300 and SR2600 deliver rich, detailed sound that remains consistent across various listening environments.

In summary, the Hafler SR2300 and SR2600 stand out in the audio amplifier market with their robust design, high power output, and advanced technologies that prioritize sound quality and reliability. These amplifiers continue to be favored choices for both audiophiles and professionals, ensuring an engaging and immersive audio experience.