Studio & Home Studio Groove Tubes d'occasion

Groove Tubes Vipre Preamp Class A Un monstre !!! 75db de Gain en full Class A, circuit doublé du début à la fin, pas moins de 8 tubes… High End sans concessions, vente à ultra regrets cause divorce/rachat maison. Test et remise en main-propres sur Valenciennes ; détails photos et discussion possible si intérêt réel d’achat. The Groove Tubes Vipre is an all-tube, variable impedancemicrophone preamplifier with selectable rise-time and VU meter ranges. It features extremely high bandwidth, low inter-stage feedback, very high gain, enormous dynamic range and graceful overload characteristics. All-tube audio path – NO semiconductors, transistors, ICs or electrolytic caps anywhere in the signal path. Eight Groove Tube compliment: 4 x 6922 (6DJ8) – preamp and rise-time circuitry 1 x 12AT7 – output driver and rise-time circuitr y 1 x GT6205 – instrument input preamplification 2 x 6AQ5 – Class A push/pull output Switch-selectable fully-floating differential input and fully-floating differential output. Switch-selectable variable-impedance input, steppedbetween 300-, 600-, 1200- and 2400-ohm taps off high-performance, custom-wound input transformers. Switch-selectable rise-times. Precise and repeatable gain settings, in 5dB and 1dB increments from 15dB to 75dB. Precision audio metering facilities with expanded and peak views on a true VU meter. Robust one watt (+30dBm) output. Massive energy storage (60 joules) in the high tension power supply. DC-to-daylight bandwidth (4Hz 100kHz). Hand-wired point-to-point connections using highest possible quality components and wires. Custom-built ceramic deck attenuators. Superior and stable audio performance under the widest range of preamplifier applications.

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