V71DI Direct Input pre-amplifier

During the last few years we have received numberous inquiries weekly, asking if we could offer the V72S as a DI Box (several studio musicians bought the V72S just to use the DI option). Other V72S users that love the V72S as a mic pre also preferred it over their standard DI Box.

In late 2002 we finally finished the "Direct Pre" design based on the circuit incorporated in our V72S. Technically speaking it is just the back end of a single channel without the input transformer, placed in a 1/2 size 19 inch 1RU enclosure.

Built in the same fashion as its big brother, the V72S, we named it the "V71DI Preamplifier."

The unit comes with minimal distraction, just a gain control, polarity reverse and two 1/4 inch jacks on the front. Delivering the same great classic sound as the full V72S. The V71DI is powered by two Telefunken NOS tubes, the input stage is equipped with an EF806s tube made in the Berlin factory. The output stage is handled by an EF844s, a special version of the EF804s, made in the Ulm factory.

The maximum input signal capability of +10dB before going into smooth tube break up, and a max. gain of 36dB makes the V71 an optimal solution for buffering or amplifying any unbalanced signal source. Everything from guitar and bass pick ups to CD players, radios, sound cards, keyboards, etc. The V71 takes care of hot or very fragile signals. The V71 circuit layout is extremely quiet and gives this all tube design a better signal to noise ratio (-100dB @ 0dB/-90dB at max. gain) than standard Digital Sound cards, and most discrete or op amp based DI boxes.

After several field tests we are proud to (re)introduce this classical Telefunken design reshaped for direct signal processing, with reference to the historic V71 made by Malotki and the best sound available for digital recordings, this direct preamplifier takes care of all your signal needs.