Audio Database

The

SANSUI AU-alpha 607DR
87,000yen(1991 release)

Description
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The Integrated Amplifier which filled the simple body with the technology of the SANSUI and was completed.

The amplifying circuit of amplifier was made to become independent of a grounding circuitry, and also the epoch-making Advanced alpha-X balance circuitry of loading of NM-LAPT is adopted.
With the push pull scheme which gives amplifier and is driven to the positive and negative side with a total of four amplifier, the speaker drive is carried out on the same requirements from the bothways by the side of a positive and a negative.
Moreover, NM-LAPT developed only in the audio lowers the impedance of a circuitry, and is raising the dynamic frequency characteristic.

The powering which adopted the NEW alpha-X balance power-source part of the closed-loop stream composition which carried a full load of high-quality sound component partses, such as a custom-made electrolytic capacitor, power transformer, etc., and was stabilized has been obtained.

An oscillation of a power supply system and a signal system is effectively controlled by the strengthening twin monophonic construction which maintained the optimal weight balance,Between the volumes and chassis which all the music signals pass etc. introduces an isorated mechanical feedback into the path which transmits an oscillation, and the vibration suppression by the isolation part of pure-copper material is given.

A music signal begins the fraction passed directly and the insulator of oscillating-component powder and a non-resonating design etc. is also pursuing the quality of each part thoroughly.

The power amplifier direct which can be inputted is direct carried for the audio signal to the power amplifier part.

A compact disk player is set to a power amplifier direct, and the back sound recording of compact disk or other sources is made into listening. For example, it is possible to back-record the sources, such as compact disk inputted in Normal 2, playing the source in Normal 1.

The 6-unit Detent volume, the gilding input terminal, the large-sized speaker terminal, and the polar window power cord / AC outlet are carried.

Internal A
Parts
6-unit

Rating of a mode
Form Integrated amplifier
<Power amplifier part>
Effective output
(10Hz - 20kHz, both channel simultaneous operation)
6ohm: 105W+105W
8ohm: 90W+90W
THD (at the time of an effective output) 0.003% or less (8ohm)
Frequency characteristic (1W) DC-300kHz and +0 -3dB
Cross modulation distortion 0.003% or less (8ohms)
Dumping factor 150 (8ohms)
Input sensitivity/impedance (1kHz) 1V/5kohm
SN ratio (A network) 120dB or more
Dynamic power 2ohm: 280W
4ohm: 220W
6ohm: 155W
TIM distortion (SAWTOOTH) Below a limit-of-measurement value
Slew rate 180v/microsec
Rise time 0.6microsec
<Pre part>
Input sensitivity/impedance (1kHz) Phono man month: 2.5mV / 47kohm
Phono MC: 300 microvolts/100 ohms
compact disk, Tuner, Line, Tape/DAT1-2-3:150mV /, 20kohm
Phono maximum permissible input MM(THD 0.01%):210mV
MC(THD 0.1%):21mV
the frequency characteristic (1W) Phono man month: 20Hz-20000Hz}0.2dB
compact disk, Tuner, Line, and Tape/DAT-1, 2, and 3:DC-200kHz+0 -3 dB
SN ratio (A network) Phono man month: 88dB or more
Phono MC: 70dB or more
compact disk, Tuner, Line, Tape/DAT-1, 2-3:110dB or more
Tone control The BASS maximum variation: }6dB (50Hz)
The TREBLE maximum variation: }6dB (15kHz)
Subsonic Filter 16Hz (-3dB), 6dB / oct
Loudness 50Hz:+4dB
10kHz:+3dB
<Synthesis>
Power dissipation 250W
Dimensions Width 430x height 159x depth of 446mm
Weight 18.0kg
Option Real sub- wood SW-AU2 (one set, 12,000yen)