Graham Slee Accession MC Phono Stage c/w the Enigma Power Supply

  

The Accession MC (and MM) answer the age old question: wouldn't a constant EQ slope be better? You see, RIAA EQ is a compromise built on the limitations of the 1950s, when one problem created another.

And that's all because of the cartridge.. Simply put, magnetic cartridges don't have a flat output. Well it would be, as you've always been told different.

Your cartridge might have come with a plot showing you how flat its output is? But they use a constant velocity test record! The cartridge output actually rises by 60dB (one thousand times) between 20Hz and 20kHz. And to make it so valves could cope, RIAA obliged by putting a kink right in the middle of the record's frequency response and some boost in the lower bass. And it's been like that ever since, and probably always will. You have a non-flat cartridge reproducing a non-flat record, all designed for 1950s reproducers, and you're spending a fortune expecting great results...

Right to this day phono stages apply cut as frequencies increase, curtailing it for a couple of octaves in the mids (the RIAA "kink"), then continuing until some cut-off point. They treat the entire signal as if it's "the recording curve" (which it isn't).

The Accession MC (as well as the Accession MM) gets straight down to business by equalising the cartridge first, thus answering the age old question: wouldn't a constant EQ slope be better? (we did it and we patented it). It then has the simpler task of correcting for the record's 20dB of combined kink and boost. It even has a constant amplitude "flat" output, just in case they ever record records flat and acoustic records never sounded so good! So now, at last, you can expect great results!

And with the NEW PSU1 Enigma micro-signal power supply those results will be even better! 360° shielded RCA/phono sockets, hard gold plated. 0.125mV to 0.84mV (recommended). Output range (for above inputs). 61.3dB (1161) at 1kHz.

500, 300, 100 and 75 Ohms (300 plus 100 both on). 750 Ohm fixed OP/ 470 Ohm variable OP (will drive? 20Hz to 20kHz 0dBu out. Typically 0.02% 20Hz to 20kHz.