Exciting new $1K phono design news!
I have just finished evaluating our new Discrete Opamp Design and it sounds great!
I have first configured a single discrete op-amp with active and passive RIAA correction, with 36dB of MM gain. I am using a 2.4mV high output MC cartridge into our 11dB gain SWL 9.0 Anniversary Edition and I am getting GOOD gain and sound! With a 5mV MM cart, it would be IDEAL!
Now obviously I am not stopping there, and the final design will be MM and MC. What is exciting however, is that MM gain can be achieved with low noise and great sound, from a single discrete Opamp!
The next step will be to look at using either a fully discrete MC head-amp for additional gain, vs. two discrete Opamp stages to achieve min. 60dB MC gain.
I just wanted to share this exciting news, because this is a crude prototype and little attention has been given to shielding of the circuit or enclosure at this point.
We are on our way! More to come!