Graham Slee PSU1 Enigma Power Supply Upgrade Specifications :
Micro-Signal Power Supply designed for the Accession C but can be used with the Graham Amp2 Communicator, Gram Amp 2 SE and Gram Amp 3 Fanfare, Novo, Era Gold V.
679.00$Brand: Graham Slee
Stating the obvious, what you hear from any amplifier or preamp is because current flows from a power supply and then back to it. Basic understanding sees that It leaves by one terminal and returns to another.
Actually, it leaves from its origin somewhere in the power supply and has to get back there. Signal current, no matter how well it is treated by the phono stage, must negotiate the inner workings of the power supply and return to its origin. Knowing that origin and how it gets back to it is crucial in understanding how best the micro-signal current involved with moving coil, returns to its origin with the least possible disturbance.
The Enigma solution was to lower the dissipation factor, improving dielectric absorption (similar to PTFE and polypropylene) for greater frequency stability such that all frequencies of signal current are treated more equally. And additionally: fine tuning its Kelvin paths and giving it a new DC cord and lockable outlet.
The result is greater clarity when using the Accession MC phono stage, in fact it’s like getting the improvement the standard issue Accession MC provides, all over again.
Dropping dissipation factor also increased ripple current handling by 35%, and when tried with the more current hungry Majestic Pre/DAC, a significant improvement to the solidity of the sound was evident. The PSU1-Enigma “without DC cord” option is available for the Majestic Pre/DAC in the purchasing panel to your right.