Chrome http2
State canvas
Mettler thread (old and new numbers)
The Lehmann Black Cube SE II phono preamplifier and its power supply. Steve Guttenberg/CNET I said at the top of this review that upgrading to a bona-fide high-end phono preamp only makes sense ... The time constants T 1, T 2 and T 3 are specified by the RIAA. The value T 4 is the extra time constant discussed earlier.. By making the assumption of an ideal op-amp, we reduce the problem to one of finding the R and C values of the feedback network which has a transfer function that's the reciprocal of equation (1). The good news is, just about every single phono stage on the market that can handle a MC cartridge can also work with an MM cartridge. You will usually see a little switch to change between the two. If you were to connect a MC cartridge to an MM phono stage, the sound would be ok, but probably not loud enough.