D.W. Fearn VT-1 Vacuum Tube Microphone Preamplifier
D.W. Fearn VT-1 Vacuum Tube Microphone Preamplifier
Brand: DW Fearn
Sorry it's gone. We may have another in stock or on the way. Please enquire below (or check our weekly Gear Update for incoming rarities).
Perfect working order and excellent cosmetic condition.
Commission sale item that our tech here has fully checked over.
Has some minor scuffing around the edges of the face, mainly towards the rack ears. See photos for more information on cosmetic condition.
From the D.W. Fearn Website:
In designing the VT preamp, no compromise in sonic quality, reliability, or ruggedness was permitted. Like the best tube equipment of the 1950s and ’60s, the VT preamp is built on a heavy-gauge aluminum chassis, utilizing point-to-point wiring. Each vacuum tube is selected for minimum noise and microphonics, and maximum sonic clarity. The front panel switches control sealed, gold-contact precision relays for all audio switching, eliminating the possibility of dirty contacts degrading the sound and minimizing the internal audio path. Four class-A triode amplifier sections (in two tubes) in each channel comprise the entire active circuit. This surprisingly simple circuit, along with top-quality components and careful design optimization, results in the sonic superiority that the VT preamp has become known for.
Features
- All vacuum-tube design
- Lo-Z input position for superior performance with transformerless mics
- Phase (polarity) reverse switch
- +48 volt phantom power (completely disconnected when off)
- Custom-design Jensen input and output transformers
- 20 dB input pad (switchable)
- True VU meters (amplifier isolated)
- All point-to-point audio wiring
- Gold input and output XLR connectors
- Polypropylene and polystyrene coupling capacitors
- All audio switching through gold-contact, sealed precision relays
- International operation on 100, 120, or 220 VAC, 50/60 Hz
- CE certified, RoHS-compliant
- +4 dBm output
- Conservatively rated precision components and rugged construction for stability and long life
Specifications
- Input 150 ohms
- Input Load Impedance 1.5k ohms
- Minimum Input Level -65 dBm nominal
- Maximum Input Level @ 20 cps -30 dBm without pad, -5 dBm with 20 dB pad
- Gain 53 dB
- Frequency Response +/-0.25 dB 20 cps to 20 kc; -3 dB @ 0.5 cps and 55 kc
- THD+Noise less than 0.25% 20 cps to 20 kc
- Intermodulation Distortion SMPTE less than 0.02%
- Signal to Noise Ratio 74 dB minimum
- Equivalent Input Noise -124 dBm maximum
- Output low-Z, transformer-balanced
- Maximum Output Level +22 dBm, 20k ohm load
- Power Requirements 100, 120, or 220 VAC, 50/60 Hz
- Dimensions 19” (48.26cm) W, 5.25” (13.34cm) H, 14” (35.56cm) D
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