Operating mode — single end, class A
Output level (1 V RMS at the input), V — 4
Input level for all inputs (RMS), V — 1
THD (600 Ohm, 4 V), % — 0.1
Output impedance (at all inputs), Ohm — no more than 15
Signal-to-noise ratio (unweighted), dB — no worse than 100
Lamps — 2 x 6J43P-DRU
Dimensions of preamplifier/transformer (H x W x D), mm — 175 х 480 х 390/80 х 125 х 300
Weight of preamplifier/transformer (without packaging), kg — 20/4
The Thunderbird preamplifier with an external transformer in a separate housing is the cornerstone of the S.A. Lab Thunderbird system building. The component is designed for the seasoned audiophiles and most insatiable music lovers who value the highest fidelity in sound reproduction.
As for the other components of Thunderbird line the preamplifier is focused on building sound systems around the convenience of the living space. The Thunderbird amplifiers can easily be integrated into the home interior without having to build it around oneself.
Thunderbird Preamplifier is based on a single end class A circuit.
As with other components in the Thunderbird series, all input and output balanced signals, including the Direct input, are generated by S.A.Lab transformers with a silver wire and composite cores optimized for audio applications. The thick 8mm chrome-doped steel shields minimize distortion and balanced signal noise enabling it to maintain absolutely accurate audio reproduction.
Dual mono power supply provides separate current stabilization in amplifying stages.
The loudness set by a volume control using S.A.Lab produced and meticulously selected high-precision tantalum resistors in 2 dB increments.
In the standard version, Thunderbird Preamplifier uses two 6Ж43П-ДРУ tubes with cryogenic treatment. Installation of other tubes is possible by request.
The S.A.Lab Thunderbird range allows a choice of body colors from a range of high quality Ferrari car finishes.
Working in a system with S.A.Lab Thunderbird components, the preamplifier demonstrates extraordinary authenticity and subtlety of the musical image, reveals the innermost essence of any music being played.
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