PRIMO
ZERO FEEDBACK FULLY BALANCED VALVE PRE-AMPLIFIER
INSTRUCTION MANUAL
Thank you for purchasing the Musical Fidelity Primo Valve Preamplifier.
This preamplifier uses our top quality, finely tuned balanced valve preamplifier circuits to deliver the absolute best in audio quality with no
listener fatigue, or transistor harshness. In addition there is no global feedback which reduces feedback related artefacts in the music.
The unit features five fully balanced signal inputs, which allow direct connection to balanced sources and outputs for the ultimate in dynamic
range and low-noise performance. The power supply and associated mains transformer are screened off in a mu-metal enclosure to isolate
the sensitive preamplifier circuits from mains noise and interference
This results in an astounding improvement in musicality and tonal neutrality and visually pleasing setup
Ease of use is augmented by the unit producing a trigger output to switch on any amplifier which accepts 5-12V trigger input, as well as
trigger input which will automatically allow the preamp itself to be controlled from a trigger source.
The Primo Valve Preamplifier is designed to be partnered with all current and future AMS and TITAN products, connecting directly
balanced inputs The Primo Valve Preamplifier is a perfect preamplifier for the 550K or 750K superchargers, and was designed with this in
mind. It can be connected to the line level inputs of the Superchargers (or, recommended, the XLR input on the 750K) as a normal
preamplifier. This combination yields one of the best amplification systems available at any price.
Used properly and carefully, it should give many years of outstanding musical reproduction.
Dust regularly with a soft duster or soft brush, but be careful when using cleaning or polishing agents - they may harm the surface finish.
If you have any questions about your audio system,
Please consult your dealer who is there to help and advise.
