Description
Ultra Rare Flagship Sansui Au-X911DG STEREO Integrated Amplifier DAC 160W:4ohm 120w/8ohm Remote. Fully working. The AU-X911DG was introduced in 1987 and discontinued in 1991. Main amp is near the same as the AU-X901, but the 911DG are optimized in more places and a MASH 1-bits digital circuit with 4 digital in/out and 1 optical in/out. Amplification is 2x120/8ohm, 2x160/4ohm and 2x320/2ohm dynamically. Connections: Tuner, aux, CD, turntable with MM/MC, 4x digital, 1x optical, 3x tape with dubbing between all three. Frequency response on the amp is DC-100.000hz +/-0,005% total harmonic distorsion. Weight 19KG RRP-1300 USD 1987-1990 As a member of Sansui's premium Vintage Line, the AU-X911 DG is a flagship model for the company. In basic description, it's similar to other companies' flagship integrated amps from earlier in the digital era: A preamp section with a moving-coil pre-preamp, a more than minimal power amp, a D/A converter with both coaxial and optical digital inputs, a switching scheme that allows reproduction of digital sources with minimal analog processing intervention, and every fondly crafted detail the company is proud of. This amp is impressive, no doubt about it. I have to point out right up front, however, that though this Sansui may outpoint competing models in certain key areas, the whole genre should be considered as just one step toward the digital future. The format is logical for 1990, when analog signals are the rule and digital signals the exception. The most important single aspect of this amplifier's design is digital, however: The Linear and Direct D/A Conversion System (LDCS), or so-called one-bit D/A converter LAB TEST MEASUREMENTS: Diversified Science Laboratories (DSL), who performed all of the laboratory tests on the Sansui AU-X911 DG, measured clipping at 123 watts into an 8-ohm resistive load, a comfortable 0.9 dB above rated power, and at 132 watts (another 0.3 dB higher) into 4 ohms. Dynamic headroom measured +2.1 dB (162 watts, as opposed to the 100-watt continuous rating). Dynamic power into 4 ohms was 1 dB higher yet, at 205 watts. With 2-ohm loads, dynamic power dropped somewhat, to 170 watts.
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