GraemeWoller
Well-known member
Are you thinking about the PCB to XLR wires?
MXL 603 -> KM84 Replacement PCB
- Thread starter GraemeWoller
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chappyclark
Member
Yes Graeme, I am talking about PCB to XLR wires.
chappyclark
Member
Suggest fitting traffo before soldering. You may have to file small amt off PCB to get it to fit.
Beatpeat
Active member
- Joined
- Mar 5, 2019
- Messages
- 28
Thank you @chappyclark. This two Trafos fit already perfect… 
Hello @GraemeWoller, I am another with a low post count 
I would like to purchase one of your boards and possibly another two in the future.
If you could please contact me when you have a chance.
Thanks
I would like to purchase one of your boards and possibly another two in the future.
If you could please contact me when you have a chance.
Thanks
Ricardus
WILL SOLDER FOR FOOD
The solution to low post count is to go into the new member forum and just write a welcome message to a few people.Hello @GraemeWoller, I am another with a low post count
I would like to purchase one of your boards and possibly another two in the future.
If you could please contact me when you have a chance.
Thanks
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MusoGreg70
Member
This is a great find. I too best get my ten posts in.
Long time lurking only it’s time to wake up and sniff the solder.
Well done that Kiwi Man.
Btw both the 603s and two Carillon Axis 1 ( same mic it appears) are prone to an annoying whine? Stock.
I was going to do a basic capacitor mod to try and get rid of that, and try a 3U capsule, then saw this excellence.
Very pleased. Cheers!
Long time lurking only it’s time to wake up and sniff the solder.
Well done that Kiwi Man.
Btw both the 603s and two Carillon Axis 1 ( same mic it appears) are prone to an annoying whine? Stock.
I was going to do a basic capacitor mod to try and get rid of that, and try a 3U capsule, then saw this excellence.
Very pleased. Cheers!
GraemeWoller
Well-known member
Yay, a fellow Kiwi!
Yeah, there's certainly no whine with this one, Greg, and I'm just so happy everyone seems to have had such a fun time putting them together. It's been a really cool project! Are you wanting to get a hold of one?
Yeah, there's certainly no whine with this one, Greg, and I'm just so happy everyone seems to have had such a fun time putting them together. It's been a really cool project! Are you wanting to get a hold of one?
MusoGreg70
Member
Yes most definitely.
. Thank you. Will P.M. GDSpenceATL
Active member
Hey @GraemeWoller , another lurker here looking to buy a few boards
I PM’d you on Reddit a couple years back, but I don’t think it did a great job of alerting either one of us when we replied lol.
I PM’d you on Reddit a couple years back, but I don’t think it did a great job of alerting either one of us when we replied lol.
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GraemeWoller
Well-known member
Man, I don't have a clue what's going on there sometimes!! I love Reddit, but things get lost!!Hey @GraemeWoller , another lurker here looking to buy a few boards
I PM’d you on Reddit a couple years back, but I don’t think it did a great job of alerting either one of us when we replied lol.
I'll send you a message.
joulupukki
Well-known member
@GraemeWoller I may also be interested in a couple boards but can’t figure out how to send you a message.
joulupukki
Well-known member
3U sells two different contact length sizes for the capsule: 3mm and 0.5mm. Which one fits these MXL donor bodies?
Chrisfromthepast
Well-known member
- Joined
- Mar 5, 2018
- Messages
- 276
3mm for the MXL 603s, 840, v67N, 604, 991, monoprice 600700 and likely more.
joulupukki
Well-known member
Excellent. Thank you!
joulupukki
Well-known member
Using the 3U cardioid capsule and their GZT-84 (7:1) transformer would this be closer to a Neumann KM-84 or a KM-184 in terms of frequency response? Looking at the 3U cardioid frequency response (at the bottom of 3U Audio Microphones,Condenser Microphones) it’s got a bump between 5-10kHz that it seems like a KM-84 doesn’t (http://cdn.recordinghacks.com/images//mic_extras/neumann/KM84-KM184-frequency.png).
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Chrisfromthepast
Well-known member
- Joined
- Mar 5, 2018
- Messages
- 276
You are correct. You won’t be building something with the resale value or exact specifications of the km84.
Having performed this mod a few times, Im always happy to end up with a lovely sounding mic in the end, which gets more use than the stock 603s I keep around as a control group. That said, I think the real value in the part selection and building and trouble shooting, is in the learning experience more than the mic. I bet you can’t build just 1…
I don’t have the km48 to compare with, but took some rudimentary measurements last year, and will hopefully make more measurements soon with various small diaphragm capsules.
At the very least, you can see why I prefer the 3u transformer from these graphs.
The km84 capsule and circuit have been discussed here quite a bit, sometimes separately. This build is very DIY.
Having performed this mod a few times, Im always happy to end up with a lovely sounding mic in the end, which gets more use than the stock 603s I keep around as a control group. That said, I think the real value in the part selection and building and trouble shooting, is in the learning experience more than the mic. I bet you can’t build just 1…
I don’t have the km48 to compare with, but took some rudimentary measurements last year, and will hopefully make more measurements soon with various small diaphragm capsules.
At the very least, you can see why I prefer the 3u transformer from these graphs.
The km84 capsule and circuit have been discussed here quite a bit, sometimes separately. This build is very DIY.
joulupukki
Well-known member
Thanks for the great info. I can see how this rabbit hole could quickly be similar to the one where I built five different vacuum tube amps from scratch (cabinet and all). Fortunately I've sold off at least one of those (since I don't need them all). But wow, it was very educational and fun!
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