stereo mic preamps

The MiniSonic MS1/MS10 Audio Analyser/Studio Aid is a complete, hand held, two-channel analogue audio test set.
As well as being a quality tester it's a precision line-up tool, a stereo PPM, a balanced-unbalanced convertor (both ways),a stereo mic preamp,a headphone amp, and a level convertor! Automated measurements can be made through the use of sequences. This powerful system allows frequency sweeps, noise and distortion measurements and headroom tests to be made with the press of one button. The 'sequence' of tests can be run at any level and any necessary normalisation is taken care of for you. Graphs of frequency response, noise vs. time , phase vs. frequency, distortion vs. level and level vs. level can all be displayed by a computer on an A4 sheet.