The AVM PH8.3

Pickups for vinyl players always require an additional amplification stage. In order to exploit all the possibilities of the analog disc to the utmost limit, AVM has developed an audiophile phono preamplifier with a wide range of extensive comfort functions. With the OVATION PH 8.3, adjustments to the phono preamplifier can be made conveniently from the listening position to ideally reproduce different pickup systems, arms and vinyl players. As with all models of the OVATION 8 series, an original OVATION tube stage with exclusive AVM 803 T tube technology and its unmistakably charming tube sound is used as the output stage.

The technology behind it

The PH8.3 equalizes the phono signals purely passively and analog and not in an amplifier stage. This has the advantage that each of the three time constants can be set individually. This makes it possible to use 5 other common LP equalizations (RIAA, TELDEC, NARTB, EMI, COLUMBIA, DECCA) in addition to the RIAA curve that is widely used today. These curves differ in the corner frequencies & time constants applied when cutting the record. These cut-off characteristics are inverted by the PH 8.3 with an accuracy of better than +/- 0.1 dB.

This extreme accuracy is achieved by the complex matching procedure of the installed resistors (matched to 0.1%) and the film capacitors (matched to 0.5%). The switchable subsonic filter effectively attenuates rumble (30Hz/12dB/octave). To calibrate different pickup systems, the levels (gain) can be adjusted in 5dB steps. For ideal sound calibration and for older recordings, mono/stereo and the phase can also be inverted. All adjustments or settings can be made conveniently from the listening position via the supplied remote control and are also saved automatically.