Appendix A – Cinemag MC Stepup Connections and Performance

CineMag was founded in 1979 in North Hollywood, California. Its mission is to manufacture the very best audio magnetic components in the world. However, its history goes back to 1953 when its founder, Tom Reichenbach, was a youngster and was already making transformers with his father, Ed. Edward Reichenbach’s experience in the audio transformer business goes back to Altec Lansing during World War II.

In order to obtain the very best results in an audio design, it is imperative that each and every detail of manufacturing be closely watched. The smallest deviation from ideal manufacturing processes will result in product which does not meet our criteria. For this reason, CineMag carries out all manufacturing at their own facility at Canoga Park, California.

The CineMag CMQEE-3440A’s design derives from the classic “Quad 8” Range designed originally for Electrodyne Mixing Desks. It can be connected with impedance ratios of 37.5/150 and 600 ohm to 50KOhm, translating into step-up ratios of 1:36, 1:18 and 1:9.

A.1 Transformer connection diagram 


For 37.5 Ohm / 1:36
Tie Brown to Yellow & Red to GreenInput Connections to Brown/Yellow (+) & Red/Green (-)
For 150 Ohm / 1:18
Tie Brown to Yellow & Orange to BlueInput Connections to Brown/Yellow (+) & Orange/Blue (-)
For 600 Ohm / 1:9
Tie Yellow to OrangeInput Connections to Brown (+) & Blue (-)


A.2 Transformer Test Results 


A.3 Transformer grounding & Secondary Hookup