Hafler SR2600, SR2300 Introduction, Technical Design Features, WHY a NEW Amplifier TOPOLOGY?

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Specifications (cont)

18.5"

3.5"

Load Power

100V 70V

842

100V 70V

842

19"

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 SR2300 and SR2600 amplifiers are two rack height, two channel, fan-cooled professional power amplifiers suit- able for use in the most demanding sound reinforcement and commercial sound installations. These amplifiers offer out- standing efficiency by means of three technologies: high-efficiency TRANS•nova Class-G circuitry, high-frequency switch- ing power supplies, and constant power output/load impedance selection switches.

Technical Design Features

WHY A NEW AMPLIFIER TOPOLOGY?

Hafler TRANS•nova amplifiers, the recording studio reference, have a floating +/- power supply for each channel and a novel drive system covered by U.S. Patents 4,467,288 and 5,567,000. Our challenge was to convert this topology into a high efficiency design with minimal increase in complexity-yielding an amplifier of outstanding audio qualities, high effi- ciency and unprecedented value. TRANS•nova Class-G is that answer.

The most common high-efficiency (Class-H) methods raise the rail voltages going to the output devices for higher power levels. TRANS•nova Class G does not do this. Instead, it operates by forming a triplet or triplex of tracking signals: A, (A+V) and (A–V), where A is the raw audio output and +/– are the floating rails. The amplifier final output is selected to be at an appropriate voltage between (A+V) and (A–V) for each condition of the signal. The output voltage and current capability are each potentially doubled and the power potentially quadrupled–without having to increase the rail voltages fed to the devices. One or more patents are expected from this technology.

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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 SpecificationsIntroduction Technical Design FeaturesWHY a NEW Amplifier TOPOLOGY? Protection Circuits What Else Distinguishes These AMPLIFIERS?Universal Line Voltage Input Front View Rear View Design FeaturesNoise InstallationPOWER/THERMAL Requirements CoolingOutput Audio Ground CHASSIS/FLOAT SwitchPower Switch Earth Grounded Source Equipment OperationInput Daisy Chain OutputLevel Controls Floated EquipmentProtect BIAMP/STEREO SwitchSTEREO/MONO 70V 100V Switch Load SwitchClipping SignalThermal 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.