With astounding transparency and warm, smooth presence.

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-1 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.

In designing the VT-1, no compromise in sonic quality, reliability, or ruggedness were permitted. Like the best tube equipment of the 1950s and '60s, the VT-1 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-1 has become known for. All over the globe, VT-1 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.

D.W. Fearn VT-1 Single Channel Vacuum Tube Microphone Preamp 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.

D.W. Fearn VT-1 Single Channel Vacuum Tube Microphone Preamp 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

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