Hafler 945 manual Rackmounting Ventilation Placement Line Voltage, Connection

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REMOTE CONTROLS: Up/Down Volume, Up/Down Tuning, Preset Next, Preset ‘1 ‘, Preset ‘11’: Audio/ Video Input Selectors, Tape 1, Tape 2/EPL, Power, AM/FM Selector, Tone In, Mute.

CONVENIENCE OUTLETS:

120 VAC MODELS: 1 Polarized Unswitched, 2 Polarized Switched, 1 Grounded Switched

240 VAC MODELS: 1 Reverse-IEC Unswitched, 2 Reverse-IEC Switched

PHYSICAL DIMENSIONS:

17” Wide x l l-3/5” Deep x 2-l/2” High (excluding feet); Faceplate 17” or 19” Wide

43.2cm Wide x 29.5 cm Deep x 6.3 cm High (excluding feet); Faceplate 43.2 cm or 48.3 Wide 1 POWER CONSUMPTION (Excluding Convenience Outlets): 20 watts Max.

INSTALLATION

RACKMOUNTING

VENTILATION/

PLACEMENT

LINE VOLTAGE

The 945 Preamp/Tuner is supplied in either a 17” Black Version, or a 19” Silver Version. The 19” model has rackmounting holes provided for installation in equipment racks. The holes are on standard EIA spacings, though the faceplate height is not standard EIA size.

The 945 produces very little heat during operation, and therefore requires no special considerations for ventilation. The preamp/tuner should be located at least several inches away from components that contain large power transformers (such as power amplifiers), due to the possibility of audible hum or buzz from magnetic radiation.

The 945 Preamp/Tuner is available in either 120 VAC or 240 VAC, 50/60 Hz versions . Make sure that the unit is configured for your local AC line voltage before attempted use. The configuration is labelled directly above the power cord entry point.

OPERATION/CONNECTIONS

POWER CORD

CONNECTION

CONVENIENCE OUTLETS

Units wired for 240 VAC are supplied without AC power cords. Local agents will supply cords with male connectors appropriate to the local standard.

Units wired for 120 VAC are supplied with a detachable AC power cord. The female connector plugs into the receptacle provided on the rear panel. This power cord is a standard IEC Type 320, 3-wire, 16 gauge assembly. Should replacement ever be necessary, be sure to replace it with an identical cord.

Never remove the grounding pin from the male end of the cord. In applications where a grounded wall outlet is not available, a ground adaptor should be employed, with the ground tab or wire of the adaptor connected to a suitable earth ground.

Units wired for 720 VAC have a total of four outlets for connection of associated components. The polarized Unswitched Outlet is powered at all times, which should generally be used for a turntable or tape deck. The remaining three Switched Outlets (one grounded, two polarized) are powered when the Power Switch is engaged, as indicated by the switch’s green light. The grounded outlet is provided for equipment requiring a grounded connection.

Units wired for 240 VAC have a total of three reverse-IEC outlets for connection of associated com- ponents. The Unswitched Outlet is powered at all times, which should generally be used for a turntable or tape deck. The remaining two Switched Outlets are powered when the Power Switch is engaged, as indicated by the switch’s green light.

for all models, the maximum power available from the Unswitched Outlet is 200 watts. The maximum total power available from the Switched Outlets is 800 watts. This total power may be drawn from a single outlet, or a combination of outlets. Since some power amplifiers consume more than 800 watts at maximum output, check the power amplifier’s rating before connecting to these convenience outlets.

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Contents Series 945 Preamp/Tuner Power Cord Grounding Power SourcesPower Cord Protection Read InstructionsPower Lines CleaningDamage Requiring Service Object and Liquid EntryTable of Contents Performance Specifications Tuner SECTION-FM Tuner SECTION-AM General InformationRackmounting Ventilation Placement Line Voltage ConnectionRP P Front Panel CALL-OUTS Outlet Connector P E 2/EPL Line OUT Video Switched AC Line VoltageYant UNSWITCHED’ L I N’ E C O R D Video Record Left ChannelLine OUT Video Switched AC Line Voltage Outlets Rating G H TVideo Record Lefi OUTPreamp /TUNER Remote Control Vszc Video Switching Preamplifier SectionTo affect signals sent to the tape deck, then Signal flow inside the unitSignal First Signal path. This will depend on TypeBalance Control Mono VolumeMute Control AM/FM SelectorUP/DOWN Auto SelectorMono Control Switching Line Amplifier Audio Line Level Input Selector SystemMuting System General Trouble Shooting Hints Ground Loops AM/FM TunerNoise, rather than a hum Will Poor quality Could be Source Noise ThisBy a High If such interferenceAM Antenna Remote Control

945 specifications

The Hafler 945 is a high-performance power amplifier renowned for its exceptional sound quality and innovative design. Serving both audiophiles and professionals in the music industry, this amplifier embodies Hafler's commitment to precision and reliability.

At the heart of the Hafler 945 is its robust architecture, capable of delivering powerful audio output while maintaining clarity and fidelity. With a power rating of approximately 100 watts per channel into 8 ohms, it provides ample power for driving a wide range of speakers, making it suitable for both home audio systems and professional applications.

One of the standout features of the Hafler 945 is its use of a differential input stage, which minimizes distortion and ensures a clean signal path. This design approach enhances the amplifier's ability to reproduce subtle details in the music, allowing listeners to experience their favorite recordings as intended by the artists.

The Hafler 945 also incorporates advanced thermal management technologies. This includes an efficient heat dissipation system that ensures the amplifier operates coolly and reliably, even during extended listening sessions. The incorporation of high-quality components, such as capacitors and resistors, further contributes to the amplifier's overall performance and longevity.

Furthermore, the Hafler 945 is designed with speaker protection circuitry that prevents damage to both the amplifier and connected speakers due to short circuits or overloads. This safety feature provides peace of mind for users, allowing them to enjoy high volume levels without the fear of damaging their equipment.

The build quality of the Hafler 945 is another point of admiration; it features a sturdy chassis with a sleek design that fits seamlessly into various audio setups. Its straightforward controls and connectivity options make it user-friendly, appealing to both seasoned audiophiles and newcomers to the world of high-fidelity audio.

In summary, the Hafler 945 is an exceptional power amplifier that combines powerful performance with advanced technology. Its differential input stage, thermal management, and protection features collectively enhance its reputation as a reliable choice for anyone looking to elevate their audio experience. Whether for critical listening or casual enjoyment, the Hafler 945 remains a distinguished option in the realm of audio amplification.