New

New

Sound Analysis Laboratory created tube mono amplifier Autograph to celebrate its 25 Anniversary. The Autograph accumulated company’s wealth of experience and embodies unique circuitry solutions from around Hi-Fi history. In the Autograph we use the highest quality audiophile grade parts and materials. Each Autograph is assembled under personal S.A.Lab Head’s control. The Autograph is amplifier of broadest sound capabilities. The most sophisticated audiophiles appreciate its penetrating musicality as well as unleashed dynamics, athletic bass and imaginary sensitiveness to thinnest musical textures. It is S.A.Lab Head’s sign manual — personal autograph of Alexey Syomin.

Ultralinear output stage based on four GU-50 generator pentodes guarantees output power of almost 200 W (4 Ohm) for no bothering about speakers’ sensitivity.

To maintain low distortion levels the tubes modes are real time controlled and efficiently corrected by special FPGA.

The amplifer’s driver stage comprises dual triodes 6SN7 those are produced in Russia exclusively for S.A.Lab.

Output and power transformers are shielded by means of thick metal plates. All the transformers including input balanced one are engineered and manufactured by S.A.Lab.

Servo schemes are fed separately and power supplies for heating, anode voltage and output tubes’ grades are stabilized by means of chokes and high voltage MOSFETs.

S.A.Lab Autograph demonstrates total quality in circuitry, parts and materials used, special emphasis on details, visual design and finally — in all-embracing musicality.

Output power (4 Ohm, THD 0,1%), W — 196
THD (10/100 W, 4 Ohm, 20 Hz – 20 kHz), % — < 0,001/0,015
Intermodulation (10/100 W, 4 Ohm, 20 Hz – 20 kHz), % — < 0,0025/0,03
Signal-to-noise ratio (unweighted), dB — 106
Power consumption (max.), W — < 450
Dimensions (H х W х D), mm — 480 х 280 х 500
Weight (one monoblock), kg — 56

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