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Author Topic: Two great mic cables for DIY builds  (Read 1457 times)

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Offline voltronic

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Two great mic cables for DIY builds
« on: January 23, 2021, 11:12:19 AM »
Over the past year, I have started making my own mic cables, and have had great experience with the following two cable stock that I would like to pass along:

1. Mogami W2930 2-channel snake cable

Extremely flexible and low-profile, ultra-low capacitance. The very fine wires are a bit challenging to solder.

Redco link

Another member alerted me that Redco's own TGS-02 is the same stuff at lower cost without the Mogami branding and with different fill between the individual channels. I have not yet tried it myself, but the appearance and specs seem to match up.


2. Gotham GAC-3 3-wire double-shielded cable

Highly flexible, lays flat, performs great, handles very nicely.

Redco link

GS thread on GAC-3 soldering


Here are pictures of what I have made with the above cable stock.
DPA 4061 ~ Line Audio CM3 ~ Naiant X-Q ~ AT 853  |  Naiant PFAs ~ Shure FP24  |  Zoom F6 ~ Sony PCM-M10
MOTU M2 ~ KRK Rokit RP5 ~ Sennheiser HD 650 ~ Etymotic ER4XR

Team Line Audio

Offline jerryfreak

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Re: Two great mic cables for DIY builds
« Reply #1 on: January 23, 2021, 11:25:21 AM »
+T those look like great options

this is semi-unrelated but i just remembered an article from Benchmark discussing the rejection qualities of star-quad, so ill drop it here

https://benchmarkmedia.com/blogs/application_notes/116637511-the-importance-of-star-quad-microphone-cable

ive used canare's fullsized version (L4E6S), but i see that gotham offers a version as well

im not sure if the 'mini star-quad' like L4E5C offers the same rejection, but techinally if the relative geometry is the same i imagine it would  I always thought star-quad was a canare brand/trademark but now that i see gotham has a version, perhaps there is a larger standard somewhere, or maybe it is an original Canare product for which any patents have expired

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« Last Edit: January 23, 2021, 11:29:48 AM by jerryfreak »
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Offline fireonshakedwnstreet

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Re: Two great mic cables for DIY builds
« Reply #2 on: January 23, 2021, 03:30:00 PM »
Very nice!
Mics: AT853Rx (C,O); ATM41HE; Nak 300 (CP-1/2); Samson CO2
Recorders: Tascam DR-70D x2
Pres: Edirol UA-5(BMp2+) x2
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Offline EmRR

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Re: Two great mic cables for DIY builds
« Reply #3 on: January 23, 2021, 03:41:49 PM »
I’ll also add I’ve used a lot of Canare, and all versions handle well with little to no coil shape memory problems.  I’ve got a lot of l4e6s that’s 25 years old and still coils/lays as it did when new.

I haven’t used the Mogami or Gotham, but both are well regarded. 
Mics: DPA 4060 w/MPS 6030 PSU/DAD6001/DAD4099, Neumann KM 131, KMR 81i, Oktava MK 012, Sennheiser MKH 105, MKH 20, MKH 30, MKH 40, MKH 800 TWIN, lots of other studio appropriate choices
Recorders: Zoom F8n, Sony MZ-R50, portable MOTU based multitrack DAW for client work

Offline voltronic

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Re: Two great mic cables for DIY builds
« Reply #4 on: January 24, 2021, 08:33:48 AM »
+T those look like great options

this is semi-unrelated but i just remembered an article from Benchmark discussing the rejection qualities of star-quad, so ill drop it here

https://benchmarkmedia.com/blogs/application_notes/116637511-the-importance-of-star-quad-microphone-cable

ive used canare's fullsized version (L4E6S), but i see that gotham offers a version as well

im not sure if the 'mini star-quad' like L4E5C offers the same rejection, but techinally if the relative geometry is the same i imagine it would  I always thought star-quad was a canare brand/trademark but now that i see gotham has a version, perhaps there is a larger standard somewhere, or maybe it is an original Canare product for which any patents have expired

wiki with more links

Yes, I know about star-quad, and I have some long lengths of Canare SQ cable.  Star-Quad also tends to have higher capacitance, though this won't really come into play until you have fairly long runs.
http://audiosystemsgroup.com/CableCapacitance.pdf

I purposely went with GAC-3 rather than GAC-4 because GAC-3 already has outstanding noise rejection, and I never have runs of more than 50 ft or work in environments where SQ might start to have a benefit. GAC-3 is a mainstay among the classical recording people on GS Remote. Many users their praise its sound quality, reliability, and rejection of dimmer noise and other similar sources. It seems Gotham's 3-wire cable performs like many others' 4-wire cables, at least in terms of noise suppression.

GAC-4 looks great, but I don't see any benefits for what I'm doing right now. I will consider it for the future if I ever want to make a very long stereo cable like this but at far lower cost.

That Benchmark article is very informative, but they are comparing star-quad to 2-conductor + shield mic cables. GAC-3 is 3-conductor + double shield, so I doubt the performance differences will be as great. I haven't seen any other mic cable assembly outside of GAC-3 where an equal-size inner conductor along with two outer shields are all tied to pin 1.
DPA 4061 ~ Line Audio CM3 ~ Naiant X-Q ~ AT 853  |  Naiant PFAs ~ Shure FP24  |  Zoom F6 ~ Sony PCM-M10
MOTU M2 ~ KRK Rokit RP5 ~ Sennheiser HD 650 ~ Etymotic ER4XR

Team Line Audio

Offline EmRR

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Re: Two great mic cables for DIY builds
« Reply #5 on: January 24, 2021, 03:40:09 PM »
I'll have to try some of the Gotham, I had not seen those details. 

I did make a batch of Grimm TPR mic cables a few years ago, specifically for ribbon mics.  I appreciate it's dense insulation, similar to coax cable, and how that reduces cable microphonics, and I believe they tout low capacitance.  The stuff is a coiling nightmare though, you'd never use it in the field.  If it sounds any 'better' I can't tell it, not with my short studio runs. 

Wiring veer:

I also recently rewired my studio mic panel to control room runs with AES 110Ω rated wire, not really any more expensive than standard wire, and also by nature lower capacitance.   Hedging my bets that every little bit counts with ribbon mics. 

I have a bucket of budget mic cables I got for a mic splitter I built, I need to give them to some hapless young band or something.  They are a nightmare to coil also, I avoid them.  When I did comparative DIY capacitance measurements of a bunch of different types if wire, it was astonishingly high capacitance too. One interesting number I'm not entirely sure how to interpret apples to apples is 'impedance'.  Using a handheld L(inductance)C(capacitance)R(existence) meter, you get readings at choices of frequency (120Hz and 1K) along with series versus parallel measurement.  That cheap cable gave by far the lowest impedance reading of any, which suggests the cable itself presents a significant load on the signal, even with short runs.  Maybe the wire to use with zingy sounding cheap condensers! 
Mics: DPA 4060 w/MPS 6030 PSU/DAD6001/DAD4099, Neumann KM 131, KMR 81i, Oktava MK 012, Sennheiser MKH 105, MKH 20, MKH 30, MKH 40, MKH 800 TWIN, lots of other studio appropriate choices
Recorders: Zoom F8n, Sony MZ-R50, portable MOTU based multitrack DAW for client work

Offline voltronic

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Re: Two great mic cables for DIY builds
« Reply #6 on: January 24, 2021, 04:26:43 PM »
I'll have to try some of the Gotham, I had not seen those details. 

I did make a batch of Grimm TPR mic cables a few years ago, specifically for ribbon mics.  I appreciate it's dense insulation, similar to coax cable, and how that reduces cable microphonics, and I believe they tout low capacitance.  The stuff is a coiling nightmare though, you'd never use it in the field.  If it sounds any 'better' I can't tell it, not with my short studio runs. 

Wiring veer:

I also recently rewired my studio mic panel to control room runs with AES 110Ω rated wire, not really any more expensive than standard wire, and also by nature lower capacitance.   Hedging my bets that every little bit counts with ribbon mics. 


I have heard good things about Grimm TPR, but did not know it coiled poorly. Better handling is one of the big reasons I have been switching out all of my cables.

I have never used AES 100 ohm cable before, but it's good to know the capacitance is lower.
DPA 4061 ~ Line Audio CM3 ~ Naiant X-Q ~ AT 853  |  Naiant PFAs ~ Shure FP24  |  Zoom F6 ~ Sony PCM-M10
MOTU M2 ~ KRK Rokit RP5 ~ Sennheiser HD 650 ~ Etymotic ER4XR

Team Line Audio

 

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