otsikko

There is something very special in German audio engineering from the 50's. One thing that strikes me is the use of pentodes in the first stage of sensitive electronics. After analyzing the good and bad sides of the design and the price and quality of original Telefunken EF804S tubes, it was clear that this is the way to go. This Pre uses only two amplifier stages and the absolute minimum of other components. The performance is flawless.

Thanks to high step up ratio input transformer and the EF804S tube self noise is very low, comparable to the best solid state amps. Gain is adjusted in 5 dB increments with Elma rotary swithes and -20 pad is automatically switched on for the lowest gain settings.

The sound is transparent with a hint of smoothness in the top end. I find it really interesting how the sound can be so... nice and accurate at the same time. Subtle differences are hard to describe, so probably it is just as informative to say that V804 Pre sounds right what ever you do.

V804 Pre is now available with optional DI inputs. They provide extremely low capacitance, only 15 pF (equivalent for one feet of the best cable you can get), to squeeze the last bits of treble juice from Hi-Z sources like guitars.

More info from HERE

Gain0-70 dB in 5 dB steps
Frequency response 0/-1 dB @ 20-60 dB gain, 50 Ohm sourcebetter than 5 Hz - 45 kHz
Frequency response 0/-1 dB, any gain, 150 Ohm source better than 12 Hz - 25 kHz
Noise (EIN) @ 60 dB gain, 50 Ohm sourceunweighted -130 dBU
A-weighted -133 dBU
Maximum output level into 10kOhms+32dBU
Maximum output level into 600 Ohms+27dBU
THD @ 22dBU out, 10k load, 100Hz-20kHz, 30-60dB gain< 0.04%
THD @ 22dBU out, 10k load, 50Hz-20kHz, any gain< 0,15%
THD @ 22dBU out, 600 Ohms load, 50Hz-20kHz, 0-60dB gain< 0.25%
Channel balance, 0-65dB gainbetter than 0.15dB
Xtalk, any gain, @ 100Hz, 1kHz, 10kHzbetter than -105dB, -100dB, -80dB
Output impedance< 100 Ohms
Input impedance1 kOhm
Optional DI input impedance2 MOhm / 15pF

Updated Tue Dec 15 19:14:21 2009