MP512 Microphone preamplifier

MP512 Microphone preamplifier for the '500' Lunchbox - Kit

The MP 5.12 is based on one discrete Op-Amp, one Cinemag input transformer and one Cinemag output transformer.

It delivers what is called the "LA" sound, popularised by the famous American consoles of the 70's : the punchy midrange and tight bass tone of the iron. This MP 5.12 is great on drums, electric instruments and generally all close miked sources.

Just install it in your API* compatible LunchboxTM rack and start recording.

Highlights
Discrete Op-Amp (DOA) pinout compatible with the API* 2520
Original Cinemag (Reichenbach) transformers on input and output
70 dB of gain
Dual track gain potentiometer for precise gain setting, even in high gains
Variable output pad for those who like to drive it hot
Fet DI input, relay switched, the signal passes through the input transformer
Signal/Clip LED monitors signal with full wave rectifier
All low level signals switched by relays
Golden contacts on relays and switches
Nicely damped quality conductive plastic potentiometer
1% metal film resistors
High grade 105°C low ESR electrolytic capacitors
High grade double sided PCB with plated holes
Available assembled or as a full kit (everything included)
What's in the kit?
Absolutely everything!

Passive components (resistors, capacitors),
2 Cinemag transformers
Active components (diodes, transistors, LED, ...),
SK25 DOA kit,
Front panel elements (switches, potentiometers, knobs),
Connectors, relay,
PCB's,
Front panel and side panel,
All hardware
You bring the solder (use good quality solder, 1mm diameter max) and the Lunchbox.

Difficulty level
The MP512 kit is an easy build. The DOA is a little more difficult because of the components density.

https://www.soundskulptor.com/en/proddetail.php?prod=MP512