Audio Database

The

A&D DA-A9500
800,000 yen(November 21, 1988 release)

Description

Power amplifier which carries an 18-bit linear zero crossing D/A converter in the core of a system.

Analog conversion of the digital signal is carried out just before the power stage, and the high precision digital filter, the D/A converter, and the volume adjustment mechanism are carried.
Especially a D/A converter has push pull composition which made L/R, and plus/minus become independent, and realizes an 18-bit system. Generating of zero crossing distortion was suppressed and a linearity and the signal to noise ratio are improved.

Current linear to a speaker is supplied to a power stage, and the linear current drive circuit equivalent to what strengthened the power source 10 times is carried.

Also with attached remote control, fundamental operations, such as volume regulation, are possible and can be used also as an Integrated Amplifier of a simple substance.

Attached

Rating of a mode
Form Digital power amplifier
Output power (20Hz - 20kHz) 200W+200W (8ohms)
240W+240W (6ohms)
320W+320W (4ohms)
Frequency response 2Hz - 100kHz, 1.5dB
THD 0.002% (8 ohms, 1kHz)
S/N ratio (IHF-A compensation) 120dB
Input terminal Analog: Two lines
Digital: Two lines (the same axle / optical change)
Input level adjustment A continuation variable
Power supply voltage AC100V, 50Hz/60Hz
Power consumption 480W
Dimensions Width 466x height 215x depth of 468mm
Weight 34.5kg
Attachment Remote control