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Vincent SA-T7 pre
SA-T7 στερεοφωνικός προενισχυτής λυχνίας
Οι συμβατικές, κλασικές τεχνικές κυκλώματος δεν εκμεταλλεύονται τη δυναμική μιας λυχνίας. Με το SA-T7 έχουμε αναπτύξει έναν προενισχυτή, ο οποίος ανεβάζει την ανόθευτη ενίσχυση των πολύτιμων μουσικών σημάτων σε ένα επίπεδο που προηγουμένως θεωρούσαμε αδιανόητο με τις λυχνίες. Χάρη στο κύκλωμα BestPentode που αναπτύχθηκε πρόσφατα (από τον Dipl.-Ing. Frank Blöhbaum), ο τρέχων θόρυβος διανομής ισχύος που είναι χαρακτηριστικός των πεντόδων δεν αποτελεί πλέον πρόβλημα.
Vincent SA-T7 pre
SA-T7 Stereo tube preamp
Conventional, classical circuit techniques do not exploit the potential of a tube. With the SA-T7 we have developed a preamplifier, which raises the unadulterated amplification of valuable music signals to a level previously thought unthinkable with tubes. Thanks to the newly developed BestPentode circuit (by Dipl.-Ing. Frank Blöhbaum), the current power distribution noise typical of pentodes is no longer an issue.
Innovation at a fair price. Developed and produced in Germany.
Modern signal sources place entirely new demands on the transmission quality of the amplifiers. With conventional (classical) circuit technology and ECC81 / 82/83/88 the potential of tube technology is not exhausted.
Such BestPentode stage has a much higher gain with lower noise than comparable triodes. The precious grille pentodes of the type E180F / 6SCH9P / 6SCH51P used in the SA-T7 can thus exploit their full potential. These tubes are NOS (New Old Stock) tubes, factory-fresh from old stock whose original purpose was to amplify high-frequency signals in 24/7 telecom applications.
The impedance converter stage is realized with a type 6S3P-EV grille triode – a Russian military tube, originally used in the MIG on-board radar and also in LongLife design. For the outstanding purity of the music transmission, the low-noise current source coupling of the BestPentode stage, for which a separate module was developed under the name Vimala – Vimala means in Sanskrit “pure, transparent, clear”.
For the possibility of adapting to individual listening habits, another gain block with 6SCH9P, 6S3P-EV and Vimala module takes care of the precision control of highs and lows, of course, if necessary switched off. Thanks to the extremely low output resistance of the new amplifier technology – typically less than 1 ohm – the amplifier outputs could be realized with purely resistive behavior. This ensures uniform transmission over the entire frequency range and the problem-free control of even critical connection cables. Two different output resistances are available for the practical connection: 50 ohms and 600 ohms.
The first-of-its-kind BestPentode circuit technology combined with sophisticated Vimala power source coupling uniquely combines high linear gain with minimal noise and superior speed for the best possible music enjoyment. At the SA-T7, we at Vincent are particularly proud: the SA-T7 is the culmination of many years of experience in the realization of innovative tube amplifiers. Innovation at a fair price, developed and final assembled in Germany.
Vincent SA-T7 pre Specifications
Transmission: 10Hz – 100kHz +/- 0.1dB
Rated output voltage: 3V
Distortion factor: <0.001% (1 kHz, output voltage 2Veff at 10 KOhm)
Gain: typ. 13.3 dB (volume control max Gain)
Input sensitivity: 430 mV (for 2V output voltage)
Signal-to-noise ratio: typ.> 100dB (A)
Input impedance:> 22 kOhm
Max. Power consumption: 58 watts
Inputs: 6 x stereo RCA, 1 x optical, 1 x coax
Outputs: 2 x Stereo RCA Pre-Out, 1 x Stereo RCA Rec-Out, 2 x 3.5 mm Jack (Power Control)
Tubes: 2 x 6SCH9P; 2 x 6SCH51P, 4 x 6S3P EV; 1 x 85A2
Playable formats: WAV, FLAC, APE, LPCM, MP3, ACC, AC3, WMA
Color: black / silver
Weight: 8.5 kg
Dimensions (WxHxD): 430 x 135 x 370 mm
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