Related Manuals for Audio Research HD220
Summary of Contents for Audio Research HD220
- Page 1 Owner’ s Manual Model HD220 STEREO POWER AMPLIFIER 3900 ANNAPOLIS LANE NORTH / PLYMOUTH, MINNESOTA 55447-5447 / PHONE: 763-577-9700 FAX: 763-577-0323...
-
Page 2: Table Of Contents
Contents Model HD220 Section Page No. Preface ..............1 Packaging . - Page 3 Model HD220 HYBRID DRIVE HD220 ® POWER AMPLIFI ER HIGH DEFINITION P O W E R LEFT RIGHT PLYMOUTH, MINNESOTA MADE IN U.S.A. SINGLE SINGLE ENDED ENDED BALANCED +12V BALANCED REMOTE TURN ON W A R N I N G !
-
Page 4: Preface
TOP VIE W or other qualified personnel. 4. The 12-gauge, 3-conductor detachable power cord on your HD220 is equipped with a standard 3-prong grounding plug. If used normally, it will provide a safe earth ground connection of the chassis. Refer to the section on “AC Power Connections”... -
Page 5: Vacuum Tubes And Preparation For Use
“on” LED illuminates. IMPORTANT: Use the best available speaker wires and N o t e : Audio Research does n o t recommend leaving your interconnects. Audio Research cannot emphasize this HD220 “on” 24 hours a day as is the custom of some audio- enough. -
Page 6: Balanced Operation
Use a 3.5mm (.140") diameter mono The HD220 should be turned on a f t e r the other compo- mini plug to connect to the +12V IN jack on the rear of the nents of your system. -
Page 7: Start-Up Following "Protect" Shutdown
Refer any needed service to your autho- 1. Mute preamplifier output. rized Audio Research dealer or other qualified technician. 2. Turn HD220 front-panel control from Operate to Off. 3. Turn off preamplifier and then the associated input Additional questions regarding the operation, maintenance source components. -
Page 8: Warranty Terms And Conditions
In the unlikely event that technical service beyond the abil- HUM & NOISE: Less than 0.1mV RMS – 112dB below rated ity of the importer is required, Audio Research will fulfill output (IHF weighted, input shorted). the terms and conditions of the Limited Warranty. Such product must be returned at the purchaser's expense to the POWER SUPPLY CAPACITANCE: 200,000 uF.
Need help?
Do you have a question about the HD220 and is the answer not in the manual?
Questions and answers