Summary of Contents for Audio Alto DMI 3 H
- Page 1 AUDiO ALTO Dual mono integrated hybrid amplifier Model DMI 3 H User Manual WITHIN THE BEAUTY OF SOUND Version 1.0 www.audioalto.com info@audioalto.com...
- Page 2 (“usually” it’s a high damping factor). AA DMI 3 H includes all the previously mentioned concepts. Its DF is 15 for optimal (well designed) speaker driving, but the user can also select a DF = 50 for less damped speakers. It also includes a new practical way of correcting speaker response (called TILT –...
- Page 3 AA DUAL MONO INTEGRATED HYBRID AMPLIFIER USER MANUAL We are sure that you will derive many years of listening pleasure with your new AA DMI 3 H dual mono integrated amplifier. These approaches give the AA DMI 3 H a remarkably natural, detailed, open reproduction and provide great stage sound.
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Page 4: Important Safeguards
SAFETY PRECAUTIONS IMPORTANT SAFEGUARDS PLEASE READ CAREFULLY ALL THE FOLLOWING IMPORTANT SAFEGUARDS THAT ARE APPLICABLE TO YOUR EQUIPMENT CAUTION! TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE SCREWS. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. SAFETY 1) Read the User’s Manual and refer to it frequently during use of this product - All the safety and operating instructions should be read before the product is operated. -
Page 5: Vacuum Tubes
Recommended Tube Types Your AA DMI 3 H amplifier is supplied from the factory with EH 6922 (E88CC or 6DJ8 NOS) tubes for line driver stage (depends on model options). The tubes are installed inside the amplifier enclosure (visible from the top and from side). -
Page 6: Design Description
DESIGN DESCRIPTION The AA Compact series aesthetics and elegant look was a (hard) task to achieve, especially when taken into consideration that all models use tubes as voltage amplification and that some of them weight up to 25kg. The enclosure is made of extruded, CNC machined, 10mm thick aluminum (or brass in chromed version). - Page 7 The assembly of the unit is handmade; all components are tested for functionality and tolerances before being installed. All these approaches give the AA DMI 3 H a remarkably detailed, natural, open reproduction and provide great stage sound. We are sure that such approach in design and building will give our customers great...
- Page 8 AA DMI 3 H with radio remote controller © by www.audioalto.com...
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Page 9: Operation
OPERATION FRONT panel POWER (STANDBY/OPERATE) Key On the right front panel of the amplifier, you will find a push button switch which controls the operating mode of the amplifier. In standby mode the LED above the button is red color. After pressing the button the LED changes to blue color and flashes for app. - Page 10 REAR panel On the rear panel there are two sets of input/output connectors. The right side – red RCA connectors (left from front view), are connector and controls for the left channel. The left side – black RCA connectors (right from front view), are connector and controls for the right channel. In the middle of the panel there are the power IEC connector, the fuse holder, main On/Off switch, the ground connector (usually used for turntables, the switch (above the On/Off switch) to change the output impedance (for both channels), the Balance Knob and the connector for...
- Page 11 REMOTE antenna input (optional) Remote antenna is needed to receive the commands from the radio remote control unit (supplied – 43mm long wire with jack). The antenna should be connected to the round connector marked with the BLACK DOT. REMOTE Receiver Antenna (optional) At the back of the enclosure the 173mm antenna is attached to a small connector for stronger and better receptions of remote commands.
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Page 12: Troubleshooting Guide
NOTE: Cleaning must be done with the amplifier turned off! TROUBLE-SHOOTING GUIDE If at any time the AA DMI 3 H amplifier fails to work, follow this simple checklist: 1) Make certain that the A.C. power cord is plugged in firmly, both at the A.C. wall socket and at the A.C. -
Page 13: Warranty
(W x D x H) 295 x 465 x 90 mm Weight: 12.5 Kg Finish: The AA DMI 3 H can be ordered in “Black”, “Chrome”, natural solid wood (i.e. walnut) or upon special order in various colors. © by www.audioalto.com...
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