Next month we will be releasing our new PEQ-1 MKII Phono Preamplifier.
This is something I've worked on for the last 3 years.
The first version was very good, but I got obsessed with this project and made 8 revisions before I felt I couldn't make it any better.
The design consists of complete dual mono circuitry with identical layouts for L & R channels.
Each channel is individually regulated and uses my hybrid "super regulator" circuits, which dramatically lower noise and increase dynamics.
The audio circuits use a combination of active bass equalization and passive high frequency equalization for lowest noise and distortion. There are rear panel DIP switches for easy configuration of cartridge resistive load, capacitance, MM/MC Gain, and sub-sonic filter. In addition to our machined aluminum chassis, the main PCB is housed in a heavy gauge steel faraday cage to reject RF and EMI.
Premium parts are used throughout... Vishay 2% Polypropylene capacitors, Nichicon MUSE bi-polar power supply capacitors, Takman 2% carbon & 1% metal film resistors, Cardas jacks, etc.
After doing extensive listening tests and comparisons with everything we could get our hands on, I can truly say this thing stomps the competition. Pure analog with ultra-low noise and dynamics of hi-res digital!
Cost will be $995 with standard AC adapter. We are also working on a dual mono upgrade supply (AC-15 MKII/$299) to be released early 2017.
I'll post photos and Audio Precision measurements once they come off the production line.