Paul F Posted March 5, 2020 Report Share Posted March 5, 2020 Some time back I was told that my MKH-415 could not be converted to phantom power. I accepted that. But recently, I wanted to operate the 415 wirelessly on a boom. The T-power made that a problem. So I re-looked at the problem. I found this gem. This tiny bugger just, just fits inside the space available. Now I understand why they said it could not be converted. The mic is held together by a screw that goes across the width of the barrel. That's where the converter fits. The answer to that problem was to replace the long pass-through screw with a short set screw held in place by locktite. You may find that converter useful for your T-powered mic. Quote Link to comment Share on other sites More sharing options...
stacysound Posted March 5, 2020 Report Share Posted March 5, 2020 Ask Pete Verrando if it can be converted. He does 416's and Schoeps. Quote Link to comment Share on other sites More sharing options...
Paul F Posted March 5, 2020 Author Report Share Posted March 5, 2020 I didn't make myself clear. I was able to do the conversion using the converter I identified in my first post. Quote Link to comment Share on other sites More sharing options...
Philip Perkins Posted March 5, 2020 Report Share Posted March 5, 2020 Well done. I'm not brave enough to try this with a Schoeps CMC4-T, but this is a good hack to make an old mic much more useful. How is the sound? Any different? Quote Link to comment Share on other sites More sharing options...
Paul F Posted March 6, 2020 Author Report Share Posted March 6, 2020 This conversion isn't for everyone. Even with instructions from the vendor, I struggled. I haven't done a critical check yet for self noise and such. But a brief test seemed to indicate self noise and performance are the same. I'm happy to be able to use the mixer or wireless transmitter as the power source instead of the old T-power box. I looked at a picture of the inside of the Schoeps CMC4-T. It looks like even less space is available. I don't think the converter I used would fit. Pete may be doing something custom. Quote Link to comment Share on other sites More sharing options...
Philip Perkins Posted March 6, 2020 Report Share Posted March 6, 2020 11 minutes ago, Paul F said: This conversion isn't for everyone. Even with instructions from the vendor, I struggled. I haven't done a critical check yet for self noise and such. But a brief test seemed to indicate self noise and performance are the same. I'm happy to be able to use the mixer or wireless transmitter as the power source instead of the old T-power box. I looked at a picture of the inside of the Schoeps CMC4-T. It looks like even less space is available. I don't think the converter I used would fit. Pete may be doing something custom. He is! Quote Link to comment Share on other sites More sharing options...
Mobilemike Posted March 6, 2020 Report Share Posted March 6, 2020 Nice job! Will the locktite prevent you from opening the mic back up in the future if a repair is needed? -Mike Quote Link to comment Share on other sites More sharing options...
Paul F Posted March 8, 2020 Author Report Share Posted March 8, 2020 Actually, I'm not there yet. I thought for sure the screw was 2.5mm and it's not. So I've ordered a 2mm set screw. If that's not it, I may be making my own custom screw on my lathe or maybe tap the hole for a 2.5mm screw. Clearly more than the average tinkerer wants to do and more than I anticipated. But I like to fabricate and I'm happy to spend hours dinking with stuff that could easily be done with money by someone that knows what they are doing. I like to learn. But to answer the question, I'll use the blue locktite which has a lower stickage than the popular red locktite. Ahh! Maybe I spoke too soon about this working. Now it's even clearer why Pete said it can't be done. Ha! I wish Sennheiser did what Octava does, which is to have a set screw that has a smaller diameter at the top. The screw is inserted into the inner barrel first and then backed out into a hole in the outer barrel that is smaller than the set screw and the set screw cinches. It can't get lost or fall out. How do I know about the Octavas? I just had one go bad. Rather than try to figure out what parts have gone bad, I bought Bill Sitler's upgrade kit and will replace all the caps and the FET and get better sound as well. Quote Link to comment Share on other sites More sharing options...
Eric Posted March 10, 2020 Report Share Posted March 10, 2020 Audio Services Canada (http://www.audioservicescanada.com/) made me an adaptor that fit in the boot of XLR connectors. Likely similar circuitry. It was inside the shortie XLR that went from my boom pole to the MHK416T. My Rycote basket did not have a conbox as it is an older version. Worked quite well. This is an option if you don't want to open up the microphone and do it there. I'm sure this could work quite well though have not used it: https://www.bhphotovideo.com/c/product/275819-REG/PSC_FPSC0010A_A4812_48V_to_12T.html Quote Link to comment Share on other sites More sharing options...
Mobilemike Posted March 10, 2020 Report Share Posted March 10, 2020 2 hours ago, Eric said: I'm sure this could work quite well though have not used it: https://www.bhphotovideo.com/c/product/275819-REG/PSC_FPSC0010A_A4812_48V_to_12T.html I’ve used this one. Works great. -Mike Quote Link to comment Share on other sites More sharing options...
Philip Perkins Posted March 10, 2020 Report Share Posted March 10, 2020 I have a large pile of those left over from before all my T powered mics were converted to p48 by Mike Verrando. I miss using them not at all, they were a pain in the ass. Quote Link to comment Share on other sites More sharing options...
Paul F Posted March 11, 2020 Author Report Share Posted March 11, 2020 Update on my conversion. All is well. The 2.5mm set screw was correct, but I misread the chart on the box of setscrews and tried to use a 3mm. The blue Loctite works well. The mic works as it did before, but now without that bloody T-power box. Quote Link to comment Share on other sites More sharing options...
pverrando Posted March 21, 2020 Report Share Posted March 21, 2020 If you own a Schoeps or Sennheiser T-power microphone, CMC4 Upgrade is offering a special: $26 off each upgrade. $128 for a Schoeps CMC4 genuine conversion to CMC5, schematically exact & with additional RF suppression, replacement of out-of-spec components and obsessive circular contact and circuit trace cleaning. See http://www.cmc4upgrade.com for particulars in upgrading your Schoeps. If you own a 416T T-power microphone, 416Tupgrade is offering a special: $26 off each upgrade. $99 for a Sennhieser 416T conversion to P48 with additional RF suppression. See www.416Tupgrade.com for particulars in upgrading your Sennheiser 416T or 415T, 816, 815, 406, or 435. (Note: We cannot upgrade Tuchel connector mics to XLR.) I feel my upgrades are a better option than the chip mentioned above for not only the above complications, but the chip has a greater propensity toward RF interference from plug transmitters, walkies and remote focus devices. It also uses a zener diode that's shown an aptitude for failure and/or noise generation after several plug-unplugs to 48v phantom. My upgrade also does not occlude the screw retainer opening in the 416. My service also has the benefit of hundreds successful of upgrades performed since 2015. Turnaround time is about two days ready-to-ship. -Pete Verrando Quote Link to comment Share on other sites More sharing options...
John Blankenship Posted March 21, 2020 Report Share Posted March 21, 2020 I've said it in other threads -- as have many, many others -- Pete does top-notch conversations. He even nicely labels the mic so there's no confusion in the future about its powering. Quote Link to comment Share on other sites More sharing options...
Paul F Posted March 23, 2020 Author Report Share Posted March 23, 2020 This thread was not intended to take anything away from Pete. I inquired with him first about my microphone conversion. Mine is very old with the Tuchel connector, which is a version Pete does not service. So this is a solution for that case. I'd go to Pete first for any of my other needs. Quote Link to comment Share on other sites More sharing options...
Philip Perkins Posted March 23, 2020 Report Share Posted March 23, 2020 We get it--we're all about DIY here, when it's possible. Modding mics isn't much of a thing in the movie-sound world, but it is common in the music sector. A non-stock version of a name brand mic is generally worth less than it was before the mod, but if the result works for your recording needs and you are ok with the risk then rock on. Quote Link to comment Share on other sites More sharing options...
John Blankenship Posted March 23, 2020 Report Share Posted March 23, 2020 3 hours ago, Paul F said: This thread was not intended to take anything away from Pete. I inquired with him first about my microphone conversion. Mine is very old with the Tuchel connector, which is a version Pete does not service. So this is a solution for that case. I'd go to Pete first for any of my other needs. I certainly didn't mean my comments as a criticism of your situation -- only as praise for Pete. Quote Link to comment Share on other sites More sharing options...
discreetly Posted December 15, 2020 Report Share Posted December 15, 2020 Has anyone recently reached out to Pete for 416T upgrades? Quote Link to comment Share on other sites More sharing options...
MortRezvani Posted December 10, 2021 Report Share Posted December 10, 2021 On 3/21/2020 at 12:00 PM, pverrando said: If you own a Schoeps or Sennheiser T-power microphone, CMC4 Upgrade is offering a special: $26 off each upgrade. $128 for a Schoeps CMC4 genuine conversion to CMC5, schematically exact & with additional RF suppression, replacement of out-of-spec components and obsessive circular contact and circuit trace cleaning. See http://www.cmc4upgrade.com for particulars in upgrading your Schoeps. If you own a 416T T-power microphone, 416Tupgrade is offering a special: $26 off each upgrade. $99 for a Sennhieser 416T conversion to P48 with additional RF suppression. See www.416Tupgrade.com for particulars in upgrading your Sennheiser 416T or 415T, 816, 815, 406, or 435. (Note: We cannot upgrade Tuchel connector mics to XLR.) I feel my upgrades are a better option than the chip mentioned above for not only the above complications, but the chip has a greater propensity toward RF interference from plug transmitters, walkies and remote focus devices. It also uses a zener diode that's shown an aptitude for failure and/or noise generation after several plug-unplugs to 48v phantom. My upgrade also does not occlude the screw retainer opening in the 416. My service also has the benefit of hundreds successful of upgrades performed since 2015. Turnaround time is about two days ready-to-ship. -Pete Verrando Hi Pete, I tried the above link but it says it is a forbidden link. I have two cmc4 that I would like to convert to 48v phantom. Will you please reach out to me at mort@eatnet.com and tell me how I can send them to you? Thanks, Mort Rezvani Quote Link to comment Share on other sites More sharing options...
John Blankenship Posted December 12, 2021 Report Share Posted December 12, 2021 Pete mentioned in another thread that he was not doing conversions now due to personal reasons. Quote Link to comment Share on other sites More sharing options...
Philip Perkins Posted December 12, 2021 Report Share Posted December 12, 2021 http://www.txsound.com/ This is his website. He said he had some personal matters he was dealing with, I hope not health issues. I wish him very well, his Schoeps and Sennheiser mic work has been very helpful to me. I guess he'll let us know if he resumes his p48 mod work--I hope he does! Quote Link to comment Share on other sites More sharing options...
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