I am happy to announce an improved (quieter and even better fidelity) Vision Phono Preamplifier.
The improvements are pretty simply, after lots of listening evaluation, we have selected new opamps for this application. Four LT1028 ICs to replace the OPA627s.
This buys about a 9 dB improvement in signal to noise ratio and even better musicality.
We have been shipping the new version since the first of the year.
If you have this phono preamp, either the free standing unit or built into your AVA preamplifier, we can replace all your phono section ICs and test it for $50. Return shipping is $21 for the free standing unit, $35 for the full size verison.
If you want to do it yourself (the new ICs just plug in) a set of four including shipping in the continental USA is $50.
If you have an older larger size phono preamp, contact us (651-330-9871) because there may need to make one small circuit change to use these new ICs correctly.
No change in the price of the phono preamp, either the free standing or built in prices.