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VT-2 Vacuum Tube Microphone Preamplifier

VT2-2006

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Reviews                       Users’ Comments

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Watch the VT-2 video tutorial

The VT-series microphone preamplifiers will change the way you think of audio quality. The transparency is astounding. Vocals sound smoother, warmer, more intimate, with a compelling presence. Any microphone and any sound will benefit from the improved clarity, definition, and lack of solid-state artifacts.

The VT-2 recreates the sound of classic tube preamps of the 1960s. Modern components and computer-optimized circuitry, unavailable during the vacuum tube era, elevate this design to a new level of performance.

Design Philosophy

In designing the VT-2, no compromise in sonic quality, reliability, or ruggedness were permitted. Like the best tube equipment of the 1950s and '60s, the VT-2 is built on a heavy-guage 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-2 has become known for.

All over the globe, VT-2 preamps are in daily use in the world's best studios, as well as in home project studios, helping many top recording artists achieve the best possible sound.

p-to-p

Point-to-point wiring, 1% resistors, and polypropylene capacitors are used for the entire signal path of the VT-2

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 construction
          for stability and long life
  • - line-level processing with the LP-1 Line Padaccessory
          - single-channel version  D.W. Fearn VT-1  also available
       - direct recording of electric instruments with the
          D.W. Fearn VT-3 Vacuum Tube DI or PDB Passive Direct Box
VT2BACK

VT-2 Back Panel

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
  • 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.

How to purchase our products

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e-mail: dwfearn@dwfearn.com

Tel: 610-793-2526
PO Box 57, Pocopson, PA 19366 USA
Revised 27 April 2012

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