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Related Manuals for Hafler JF2000
Summary of Contents for Hafler JF2000
- Page 1 Hafler JF2000...
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Page 2: Table Of Contents
TABLE OF CONTENTS Page 1 Introduction ............. Page 1 Features ............Page 2 Installation and Setup........Page 4 Special System Configurations ....... Page 8 Rear Panel ............Page 9 Operation ............Page 9 LED Displays ........... Page 1 0 Care .............. -
Page 3: Introduction
50 Amperes. This ensures that mo- mentary speaker impedance dips and surge current require- ments are easily supplied. The JF2000 is fully rated for loads of 4 and 8 Ohms. It is Wide Load stable to 2 Ohms. (This means it will operate safely, cleanly... -
Page 4: Installation And Setup
Toroidal The power supply for the JF2000 is based on a 1000 Volt- Transformer Ampere toroidal (donut-shaped) line transformer. We use the toroid core (which is more expensive than a conventional square transformer) for its higher efficiency, lower weight, smaller size, and freedom from stray magnetic fields. - Page 5 The JF2000 is designed to operate on 120 Volts AC, 60 Hertz Power standard U.S. line output) only. Connection is via a standard Connection 3-prong grounded AC plug. If a 3-prong (grounded) outlet is rot available, the third (ground) wire MUST be grounded to a satisfactory electrical ground using adapters available at nost hardware stores.
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Page 6: Special System Configurations
Speaker Be sure to observe speaker polarity (+ and - leads) through- Polarity Note out your system. Getting them wrong can result in missing bass, massive distortion, or blown speakers! SPECIAL SYSTEM CONFIGURATIONS The minimum nominal load impedance for ‘PLEASE NOTE: each channel of the amplifier is ohms. - Page 7 may wish to drive biamplified pairs of speakers with identical signals if the speakers have internal crossovers. ‘You may wish to drive multiple speakers which would be too low in impedance if driven together (under 4 Ohms). Set the INPUT switch to MONO (out). This feeds the right and left channel power amplifier section from the left input signal jack.
- Page 8 Bridging applies much more power to the speaker load than either amplifier channel would alone. For an 8-Ohm speaker, the JF2000 is rated for a minimum output of 200 Watts for a single channel. For both channels bridged into the same speaker, the minimum output would be 600 Watts.
- Page 9 Stereo satellites can be driven at the same time as a bridged mono subwoofer or bridged center channel speaker (with Bridged Mona one JF2000). If you have satellites designed specifically for midrange and treble, with a single mono subwoofer designed for bassonly: Set output switch to MONO (OUT).
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Page 10: Rear Panel
RCA jack. The overall gain ranges form zero (fully counter-clockwise) to 36 dB (fully clockwise). The JF2000 is equipped with AGC5-Ampere speaker pro- tection fuses. These fuses are for speaker protection only. Most speakers will not handle more than a 5-Ampere fuse (or Speaker Fuses less). -
Page 11: Operation
OPERATION First Time: Before turning on the power switch to the JF2000 Turning On forthefirst time, double-check all speaker and input connec- The Amp tions and turn the input level controls all the way down (fully counter-clockwise). Turn on your source equipment (pre- amp, CD player, etc.) Turn the power switch on and adjust... -
Page 12: Care
Hafler Customer Service Department. No user serviceable parts inside. Do not disassemble ampli- fier for any reason. Refer to an authorized Hafler warranty station or to Hafler directly. See Warranty Statement. TROUBLESHOOTING The LED displays show a lot of information about how the LED Displays for amplifier is acting. - Page 13 This is an indication that no power is reaching the amplifier. No LED Possible reasons include: 1) Amplifier not securely plugged in. 2) Power source (socket) failed (AC line fuse blown, wiring open, etc.) 3) Internal amplifier fuse blown. Fuse replacement should only be attempted by a qualified technician.
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Page 14: Specifications
SPECIFICATIONS 8-Ohm POWER: Over 200 Watts per channel from 20 Hertz to Performance 20,000 Hertz, both channels driven, at rated distortion. DISTORTION: Less than 0.05% Total Harmonic Distortion plus Noise, 20 Hz to 20,000 Hz, both channels driven at full power. -
Page 15: Warranty
The Hafler JF2000 is warranted for 3 years from date of purchase, including parts, labor, and return shipping costs from the factory to the owner within the Continental U.S.A. - Page 16 Hafler A Division of Rockford Corporation 613 South Rockford Drive Tempe, Arizona 85281 U.S.A. 602 - 967 - 3565...