On 13 Dec 2010, at 17:00, [email protected] wrote: > > Message: 1 > Date: Sun, 12 Dec 2010 17:53:44 +0000 > From: Tim BC <[email protected]> > Subject: [Sursound] Calrec CM4050 Surround Microphone SN: 502 > To: [email protected] > Message-ID: <[email protected]> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > I have been fortunate to be the steward of a Calrec CM4050 microphone > and related accessories for the last 18 months or so. Sadly I have not > been able to do much with it, partly due to a lack of adequate time and > partly due to a slight mistrust of the mains power supply. I am about to > return it to its rightful owner. > > From its appearance and low serial number (502), I suspect that it is a > prototype particularly as the pre-amp is covered in handwritten notes on > masking tape and the connectors are RCA phonos and TS 6.35mm jacks. The > connector on the base of the microphone is a 6-pin male XLR. The > connecting lead is a 6-pin XLR-F to four TS 6.35mm jacks and is about > 1m80 long. This lead is connected to a pre-amp with coarse and fine gain > switches and then to what would appear to be an A-format to B-format > converter, the outputs of which appear on 2 sets of 4 RCA phono sockets > marked NOPQ. I have not had the courage to open the cases to investigate > their contents. The mic-preamp is mains powered and I suspect provides > the polarisation voltage for the capsules. The A/B converter appears to > be passive.
I think what you are describing is a MKII SFM, as 504,505 and 506 were MKII development mics we used on the Ambisonics project at Reading Univ in the late 1970s. The 6 pin xlr is four capsule feeds,50v phantom and gnd. regards, Geoffrey -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20101213/c7e50172/attachment.html> _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound
