Hafler SE 120 Service Manual

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SPECIFICATIONS POWER RATING: Less than 0.006% total harmonic distortion at any power level up to 60 watts continuous average power per channel into 8 ohms at any frequency between 20 Hz and 20 kHz with both channels driven. IM DISTORTION (IHF): Less than 0.005% from 1 to 60 watts, each channel, into 8 ohms. TYPICAL THD AT 60 WATTS INTO 8 OHMS: 20 Hz: 0.002% 1 kHz: 0.002% 20 kHz: 0.006% FREQUENCY RESPONSE INTO 8 OHMS: -3dB, 4Hz to 2OOkHz at 1 watt. +OdB, -0.5dB, 1OHz to 4OkHz at 60 watts. TYPICAL CHANNEL SEPARATION: 2OHz: > 75dB 1kHz: > 85 dB 20kHz: > 65dB SIGNAL TO NOISE RATIO, UNWEIGHTED: Exceeds 1OOdB referred to 60 watts into 8 ohms. INPUT IMPEDANCE: 22,000 ohms INPUT SENSITIVITY: 1.1 volts rms for 60 watts into 8 ohms. DAMPING FACTOR: 100 to 1kHz into 8ohms, 50 to 1OkHz into 8ohms. POWER CONSUMPTION: 60 watts both channels into 8 ohms: 300 VA Quiescent: 60 VA SIZE: 3-1/4 high plus 1/2 feet, 17 wide, 9 deep. (83 mm high plus 152 mm, 432 mm wide, 229 mm deep.) NET WEIGHT: 18 lbs. (8.2 kg) SHIPPING WEIGHT: 20 lbs. (9.1 kg) Stereo/Mono Channel Operation: The SE120 delivers 60 watts continuous average power per channel into 8 ohms. It can be bridged for single channel operation producing up to 120 watts of power into 16 ohms. Input Mode Selector: This switch will allow the user to specify the input signal to the amplifier. A. Stereo Mode: This allows the right and left channels to reach their designated amplifier channels. This mode will deliver more than 60 watts into an 8 ohm load. B. Mono Mode: The SE1 20 can be operated in a bridged mode which drives both channels with the same signal and combines to deliver more than 150 watts into 8 ohms. This disables the right channel input and routes the signal through the left channel. Construction: The simplified construction of the SE120 improves relia- bility and results in consistent performance. The heavy duty case construction on the SE120 will provide years of durability and trouble free protection. Gold Plated RCA Input Connectors: This provides the most accurate signal transmission and lowest possible loss. Gold-plated terminals are immune to signal deterioration with time that can be caused by corro- sion in the connectors. Speaker Output and Power Connectors: For minimum loss power transfer, high definition and oxidization resistance. Protection System: The SE120 is equipped with a unique protection system that constantly monitors the temperature of the output devices and takes corrective action to prevent damage to the amplifier as a result of excessive overheating. ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE. Copyright 1990. All rights reserved -l-

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