Descrizione

Vendo Preamplificatore microfonico a 2 canali Aphex 107 Tubessence con effetto valvolare. Ritiro a domicilio o spedizione ed eventuale restituzione a carico dell'acquirente. No permute. Features Tubessence Revolutionary new patented circuit uses a 1VRMS tube in a whole new way. Equivalent Input Noise (EIN) of -128 dBu, worst case at maximum gain. 2 independent channels with front panel XLR inputs. Up to 64dB of gain available. 20dB pad with Red LED indicator. 2 LED input meter (Green LED = -20dBu, Red LED = 6dB below clip). Full 48-volt Phantom power with red LED indicator. Low-cut filter with Red LED indicator: 80Hz, 12dB/octave. Polarity inversion switch with Red LED indicator. Individual channel remote mute capability with Red LED indicator. Switchable +4dBu or -10dBV output with Õ in. TRS phone jacks. Studio-quality tube circuitry rugged enough for touring and field use. Applications Primary microphone preamplifier for recording, video, and film production. Live performances with artist actuated remote muting. Live direct-to-DAT recordings using stereo microphone techniques. High-quality broadcast talent preamplifier. Spec. CMRR (*1): Greater than 70dB @ 60Hz Phantom Power: 48VDC on pins 2 and 3 with internal transient-suppression circuitry Output Nominal Output Level (User Selectable on Back): +4dBu -10dBV Connector: RS 1/4" phone jack same Type: Single-ended, impedance-balanced (*5) (may be used unbalanced) unbalanced Output Impedance, Balanced-SEIB (*5): 114-ohms ±10% n/a Output Impedance, Unbalanced: 200-ohms ±5% 200-ohms ±5% Maximum Output Level: +20dBu +6dBV (+8.2dBu) Audio Frequency Response: +0.1dB/-1.5dB from 20Hz to 1.01kHz; +0.1dB/-0.2dB from 1.0kHz to 20kHz Voltage Gain (*2): Gain is continuously variable from +18dB to +64dB (-2dB to +44dB with Pad in) Hum and Noise (22Hz to 22kHz): At max. gain, equivalent short-circuit input noise does not exceed 128dBu Crosstalk (*3) (20Hz to 20kHz): Does not exceed -64dB