Page 2 - Introduction; Important Safety Instructions; WA R N I N G; AV I S
2 En Introduction Important Safety Instructions 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with dry cloth. 7. Do not block any ventilation openings. Install in accordance with the ma...
Page 3 - Precautions; POWER; For Canadian Models
3 En Precautions 1. Recording Copyright —Unless it’s for personal use only, recording copyrighted material is illegal without the permission of the copyright holder. 2. AC Fuse —The AC fuse inside the unit is not user- serviceable. If you cannot turn on the unit, contact the dealer from whom you pur...
Page 4 - Supplied Accessories; Power cord; Features; Installing the Power Amplifier
4 En Supplied Accessories Power cord Power cord (5.9 ft/1.8 m) . . . . . . . . . . . . . . . . . . . . . . . (1)(Plug type varies from country to country.) * In catalogs and on packaging, the letter at the end of the product name indicates the color. Specifications and operations are the same regard...
Page 5 - Getting to Know the Power Amplifier; For detailed information, see the pages in parentheses.; button; This button is used to turn the main power on/off.; Power; Front Panel
5 En Getting to Know the Power Amplifier For detailed information, see the pages in parentheses. a 8 ON/STANDBY button This button is used to turn the main power on/off. b Power indicator The power indicator will be lit blue when the main power of ADM-20.4 is turned on. Front Panel a 2
Page 6 - Rear Panel
6 En a INPUT LEVEL knob Turn this INPUT LEVEL knob to adjust the input level of the signal from the INPUT jacks. Normally, set to MAX. b INPUT/OUTPUT jacks These are the analog audio inputs and outputs. Use an RCA-type audio connection cable to connect the output jacks of the device to the INPUT jac...
Page 7 - Connections; Cable and Jacks
7 En Connections Connections Note • Push plugs in all the way to make good connections (loose connections can cause noise or malfunctions). • To prevent interference, keep audio cables away from power cords and speaker cables. When connecting the ADM-20.4 to AV Receiver, connect the INPUT jacks of t...
Page 8 - • If you are using banana plugs, tighten the speaker; Connecting Your Speakers; Connecting the Power Cord; Connect all of your speakers and components.
8 En ■ Screw-type speaker terminals Strip 1/2" to 5/8" (12 to 15 mm) of insulation from the ends of the speaker cables, and twist the bare wires tightly, as shown. ■ Banana Plugs • If you are using banana plugs, tighten the speaker terminal before inserting the banana plug. • Do not insert t...
Page 9 - Advanced Operations; Custom Setup; Setting the TRIGGER; Setting the Auto Standby Function; AUTO STANDBY; SPEAKER IMPEDANCE
9 En Advanced Operations Custom Setup Make TRIGGER selector settings if you want to turn the power on and off along with other equipment. When the Auto Standby (ASb) function is activated, the power amplifier will automatically enter Standby mode if there is no operation for 3 hours with no audio si...
Page 10 - Others; Operations; The TRIGGER switch does not react.
10 En Others Operations To listen to music or view your favorite movies, follow the operations below.The procedures given below assume that the other system components are already connected. (For example, that the source components are already connected to the control amplifier or the preamplifier.)...
Page 11 - Specifications
11 En Specifications Specifications and features are subject to change without notice. Rated Output Power (FTC) 75 watts minimum continuous power per channel, 8 ohm loads, 2 channels driven at 1 kHz, with a maximum total harmonic distortion of 0.08 %(FTC) 65 watts minimum continuous power per channe...
