VT-5M
Equalizer
From D.W. Fearn:
The Model VT-5M Mastering Equalizer is designed to provide recording professionals with a sonically superior outboard processing device. It is typically used in sound recording studios for modifying the frequency response characteristics of an individual track. The VT-5M is a true stereo device, with one set of controls that simultaneously adjust both channels.
It is designed for use in the professional recording environment. It accepts all standard low-impedance (nominally 600 ohm) line-level (nominally +4 dBm) signals. The output is line-level (+4 dBm) low-impedance, transformer-isolated and designed to feed bridging inputs. It is built to sound great for a long time, with top quality parts used throughout; transformers, inductors and many other components are custom-made for the VT-5M.
All power supplies are solid state and fully regulated. All rotary controls use high-quality silver-contact switches for precise repeatability and matching between units.
Specs
- Type
- Stereo mastering equalizer, vacuum tube with passive LC equalization
- Input
- 600 ohms
- Input load impedance
- 40k ohms
- Minimum input level
- -20 dBm nominal
- Maximum input level @ 20 cps
- +25 dB
- Gain
- 0 dB
- Frequency response
- ± 0.2 dB 20 cps to 20 kc, -3dB@0.5cps&80 kc
- THD + Noise
- <0.10% 20 cps to 20 kc
- Intermodulation distortion
- SMPTE: <0.80%
- Signal to noise ratio
- 82 dB minimum
- Output
- low-Z, transformer balanced
- Maximum output level
- +22 dBm unterminated
- Low cut
- 30, 40, 100, or 400 Hz, 0 to -10 dB shelving in 1 dB steps
- Low boost
- 20, 40, 60, 100, or 140 Hz, 0 to 10 dB shelving in 1 dB steps
- Mid cut
- 200, 300, 400, 500, 600, or 700 Hz, 0 to -10 dB in 1 dB steps
- High boost
- 1.5, 3, 4, 5, 8, 10, 12, or 16 kHz, 0 to 10 dB in 1 dB steps
- High bandwidth
- Q of 0.6, 0.8, 1.0, 1.4, or 1.7
- High frequency cut
- 1.7, 4, 10, or 28 kHz, 0 to -10 dB shelving in 1 dB steps
- Output gain
- adjustable from -5 to +5 dB, referenced to +4 dBm, in 1 dB steps
- Tubes
- Eight 6072A
- Power requirements
- 115, or 230 VAC 50/60Hz, 85 W
- Dimensions
- 19" (49cm) W, 5.25" (14cm) H, 9" (23cm) D
- Weight
- 24 lbs (11 kg)
- Shipping weight
- 30 lbs (14kg)
- Included
- The VT-5M Equalizer, Line cord, This instruction manual
Source: D.W. Fearn VT-5M Mastering Equalizer manual (PDF)