D.W. Fearn VT-I, Руководство по эксплуатации

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VT-I/F Vacuum Tube Instrument Interface
D.W. FEARN
8
I have seen how direct boxes can be abused in the studio environment, so the
VT-I/F was built to take rough treatment. The case is machined from solid quar-
ter-inch thick aluminum plate, and finished with a tough polyurethane aircraft fin-
ish.
Why does the VT-I/F sound so good? I’m not entirely sure, but I do know that
it provides the proper load to the instrument. This is vital for an unrestricted sound.
The frequency response is flat from 10 cps to 20 kc, with -3 dB points at 0.5 cps
and 90 kc. The VT-I/F circuit is very similar to the circuit of the VT-1/VT-2, with
a different input design. The output is identical to the VT-1/VT-2 but operates at a
lower level. The power supply is virtually identical to that used in the VT-1/VT-2.
The VT-I/F has been used on electric and acoustic (with a pickup) guitars, elec-
tric and acoustic (with a pickup) bass, electric pianos, synthesizers, samplers, etc.
and it sounds great on all of them. It will not overload on any instrument, although
when driven hard, the sound becomes fatter. It has enough gain, and it’s quiet
enough, for use with very low level instruments, like finger-picked acoustic gui-
tar.
The lifeless, restricted sound I thought was part of direct recording is gone. The
VT-I/F has depth, fullness, dynamics, and excitement while remaining quiet and
under control with any instrument.
Douglas W. Fearn
November 1994