Revision/One

2015.01.01

Features:

  • 100% formfactor compatible revision mother board for usage in 532, 544 and 567 MFB enclosures.
  • 3 channel active system with 3 individual amplifiers for bass, mid and highnote.
  • 544 based low and mid note, 545 based high-note amplifier.
  • Onboard low-esr supply and output capacitors.
  • Minimal external wiring.
  • Bi-Color LED operation
  • Onboard eco friendly standby logic.
  • Speaker clipping protection for mid and highnote channel

An increasing number of MFB enthusiasts discovered that subjecting vintage MFB gear to a thorough overhaul can lead to surprising results.

A question often heard is if, next to the standard overhaul, there are other means of improvbement possible to increase the sound quality even further. The rationale is that both components and technology have improved over the years, what could be modded to make these speakers even perform better.

The Piratelogic Revision/One boards serve exactly this purpose, not intended to build new loudspeakers but especially geared towards optimizing the existing models. Designed with exactly the same dimensions and mounting points as the 22RH532, 22RH544 and 22H567 motherboards they offer a state of the art replacement for the original 30+ year old boards.

Usermanual wizard Discussion forum (dutch only)

544 Input

2015.04.01

Features:

  • 100% formfactor compatible with the original input print
  • Doublesided pcb
  • Original circuitry
  • Optional high roll-off

Deze module is in ontwikkeling, de eerste batch PCB's is gepland voor begin 2016.

images schema wizard

532 Input

2015.03.01

Features:

  • 100% formfactor compatible with the original input print
  • Doublesided pcb
  • Original circuitry

Deze module is in ontwikkeling, de eerste batch PCB's is gepland voor begin 2016.

images schema wizard

532/544/567 Ekomatic

2015.03.01

Features:

  • Easy installable on spare AC outlet
  • < 1 Watt standby power consumption
  • No moving parts
  • LED pilot lights for On/Off and standby
  • Optional automatic bypass switch
  • Open source hardware