VT-4 Vacuum Tube Equalizer. It's smooth and sweet, and can be very subtle at mild settings, but quite strong with aggressive use of the controls.
The D.W. Fearn VT-4 Vacuum Tube Equalizer will change the way you think of eq. It's smooth and sweet, and can be very subtle at mild settings, but quite strong with aggressive use of the controls.
Creative use of the low boost and cut will create a powerful bass that has to be heard to be believed. The high boost adds just the right brightness to vocals, guitars -- any sound, or even an entire mix. Even with extreme settings, the VT-4 will never sound harsh.
The D.W. Fearn VT-4 is a single-channel equalizer uses passive LC circuitry with class-A triode vacuum tube stages for the input and output. The tube circuitry is largely derived from the VT-1/VT-2 mic preamp design, so the equalizer has much the same sonic character as the preamps.
The LC-style passive equalization circuitry is based on the classic designs that are still the best-sounding way to achieve high-quality tonal control.
The input is line-level, transformer balanced-bridging. An active vacuum tube input section has adjustable gain to accomodate input signals as low as -10 dBm. The input transformer is made by Jensen. The output stage utilizes the same custom Jensen transformer used on the VT-1/VT-2 mic preamps.
All controls are stepped for precise repeatability and uniform matching between units. High-quality rotary switches are used with 1% metal-film resistors. All of the audio capacitors are polystyrene or polypropylene. The inductors are custom-made for us by Jensen Transformers Inc.
The equalizer is constructed of heavy-guage aluminum, with a a 3RU (5.25 inch), 1/4-inch thick front panel, finished in D.W. Fearn red. It matches the VT-1/VT-2 series of mic preamps in appearance and construction.
Like the VT-1/VT-2 preamps, the Equalizer has been designed to provide an exceptional tool for audio professionals. The design frequencies and curves were determed by ear, after extensive listening to a variety of program material, both individual tracks and overall mixes. The result is a highly-musical equalizer with plenty of range for enhancing any track or mix.
All controls are independent and can be used in any combination
Low Cut at 30, 40, 100, or 400 Hz, 0 to -18 dB shelving in 2 dB stepsLow Boost at 20, 40, 60, or 140 Hz, 0 to 16 dB shelving in 2 dB stepsMid Cut at 200, 300, 400, 500, 600, or 700 Hz, 0 to -16 dB in 2 dB stepsHigh Boost at 1.5, 3, 4, 5, 8, 10, 12, or 16 kHz, 0 to 12 dB in 2 dB stepsHigh Bandwidth Q of 0.6, 0.8, 1.0, 1.4, or 1.7High Frequency Cut at 1.5, 3.5, 8, or 28 kHz, 0 to -14 dB shelving in 2 dB stepsGain adjustable from -9 to +9 dB, referenced to +4 dBm, in 3 dB steps
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.
Performance (eq out)
Frequency response: +/- 0.2 dB 20 Hz to 20 kHzTHD: less than 0.06%Signal-to-Noise: better than 80 dB
Manufacturer Part Number : VT-4
December 31, 2017
Listen with your ears
I bought two VT-4's awhile back and waited till I had use them to give my impressions. First off these are high end pieces of audio equipment. Yes they do cost but anything on this level of audio is not given away because it usually means that the best parts are used. Read more
This EQ is to be listened to when you want to change the sound of something. I use my ears to set them up to a piece I am listening to. These are like surgical knifes. You can go anywhere and just about do anything to it. With having two my left and right are will taken care of. Very Very sweet sounding. Highly recommended.