DW Fearn VT-1
The VT-1 is a single-Channel Tube Mic Preamp that is uniquely one of the biggest and most musical sounding preamps available. Offering a transparent and detailed sound, the VT-1 is the perfect preamp as the front end in almost any audio chain.
The VT-1 is the single channel version of the D.W. Fearn VT-2 Vacuum Tube Microphone Preamplifier. The specifications are identical to the VT-2.
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
- clean and airy high end
- fat low end
- unsurpassed warmth, transparency, and musicality
- 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 for superb sonics
- -20 dB input pad(switchable)
- true VU meters(amplifier isolated)
- all point-to-point audio wiring
- high-performance, fully-regulated power supplies with exceptional reserve
- 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 constructionbfor stability and long life
SPECIFICATIONS
- 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 Requirementsv100, 120, or 220 VAC, 50/60 Hz
- Dimensions 19" (48.26cm) W, 5.25" (13.34cm) H, 14" (35.56cm) D
- Weight 18 lbs (8.16kg)
- NOTE: Frequency is specified in cycles per second (cps) or kilocycles per second (kc). These units correspond to Hz and kHz respectively. Measurements made with -50 dBm input and 50 dB gain in a 22 cps to 22 kc bandwidth. Specifications and price subject to change without notice.
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