The MP573 is a two stages, single ended class A preamp, based on the design that was originally used in the Neve 1290/1073 modules, that has been adapted to the '500' format of API.
Just install it in your API* compatible LunchboxTM rack and start recording.
The sound of the MP573, like its model is full, silky, detailed and musical, slightly larger than life, very complimentary to a digital recording environment.
The MP573 is great on vocals, acoustic instruments and generally all close miked sources that need to be pushed forward in the mix.
Highlights
Single ended class A design
Carnhill/St. Ives transformers on input and output
0 to 70 dB of gain
Switchable 300 & 1200 Ohms and line level input impedance
Switchable first stage
The output stage is biased in a rich Class A with 70mA of middle current
Fet DI input, relay switched, the signal passes through the input transformer
Signal/Clip LED monitors clipping in both stages
24V supply built from the +/-16V with a linear regulator
Controlled inrush current for lunchboxes with sensitive power supply
Golden contacts on relays and switches
High quality Grayhill gain switch
High precision aluminum knobs
Tantalum capacitors in the audio path (as in original)
High grade 105°C low ESR electrolytic capacitors
WIMA film capacitors
High grade double sided PCB with plated holes
Easy build, dense but straightforward
Available assembled or as a full kit (everything included)
