raph 1 shows the frequency response of the Transrotor Phono MC 8.2 Sym phono preamplifier. had to use an inverse RIAA equaliser to produce this graph, and although it is a precision device, it does introduce some errors, so the errors in the response are both of it and the Transrotor Phono MC 8.2 itself. Also, because of theextremely low-level signals involved and the necessity to connect the Phono MC 8.2 to multiple items of test equipment, some mains hum inevitably creeps into the measurement. You
