What replacement brand of 12AT7 tube would be a quality upgrade (possibly more gain/less noise) over the stock Chinese tube for an MXL V69? Also, anyone try replacment of the 12AT7 with a 6201, 6679, 7728 or ECC801/S tube?
I removed the side covers from both of my CAD M37 mics and noticed that the circuit boards have "M177" etched on them. Both of the M37s are about 2 years old (long before the "new" M177 appeared). Is this just "planning ahead" on the part of CAD? - or is the M177 just a re-packaged M37 at a...
At what level is condenser mic "self-noise" considered "low"(>15dB?). Is using a low noise mic ever more important than using the mic "with the right sound" for the job?