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-   -   So I built this TRS guitar cable and... UPDATE: (https://www.acousticguitarforum.com/forums/showthread.php?t=446600)

chitz 10-17-2016 11:22 AM

So I built this TRS guitar cable and... UPDATE:
 
The signal is weak. Anyone know why?

It's the cable from the K&K Trinity to the pre blender. I felt like the 6ft one that came with it was too short, so I built this 12 ft one.

I used good quality gold Neutrik ends (90 degree on one end) and good cable.

Tests out fine with continuity test, no crosstalk either. Stumped.

Shower me in knowledge group. :D


Update: Emailed with Jack (great guy) @ K&K and he says up to a 15ft cable should work fine. Hmmmmmm....

briggleman 10-17-2016 04:03 PM

Question One: Does the 6' one work fine.... No Volume Loss???

Question Two: If the 6' one works, why didn't you order a cheap 12' one off of Amazon?

Question Three: Why is the sky Blue?

Explanation for responding to this post: Its Monday and I had the day off but I did wait until after 5 pm to start drinking!

chitz 10-17-2016 05:24 PM

Quote:

Originally Posted by briggleman (Post 5100782)
Question One: Does the 6' one work fine.... No Volume Loss??? Yup works fine.

Question Two: If the 6' one works, why didn't you order a cheap 12' one off of Amazon? Couldn't find a 12' TRS with a 90 degree on one end anywhere.

Question Three: Why is the sky Blue? A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.

Explanation for responding to this post: Its Monday and I had the day off but I did wait until after 5 pm to start drinking!

I've been communicating with some experts and it may be Mogami recommended the wrong cable to me. Who ya gonna trust? :(

sdelsolray 10-17-2016 07:13 PM

Quote:

Originally Posted by chitz (Post 5100843)
I've been communicating with some experts and it may be Mogami recommended the wrong cable to me. Who ya gonna trust? :(

Don't sweat the small stuff. Purchase a longer TRS cable and all will be right.

Vancebo 10-17-2016 07:56 PM

I have 2 or 3 10 - 15 foot ones I'll sell you cheap. They are the ones that used to come with a Taylor guitar when the ES system was new. They range from never been used to lightly used.

chitz 10-18-2016 03:06 AM

Quote:

Originally Posted by sdelsolray (Post 5100921)
Don't sweat the small stuff. Purchase a longer TRS cable and all will be right.

Believe me, building it was a last resort. I could not find one with a right angle on one end that wasn't custom made and wasn't $100.

Quote:

Originally Posted by Vancebo (Post 5100959)
I have 2 or 3 10 - 15 foot ones I'll sell you cheap. They are the ones that used to come with a Taylor guitar when the ES system was new. They range from never been used to lightly used.

Vancebo, you've got mail! ;)

MarkF_48 10-18-2016 06:24 AM

Do you have link to the cable you used? If everything ohms out OK on the cable, like yourself I have a difficult time understanding why it wouldn't work.

The impedance of the pre blender appears to be 1 megohm, which implies a high impedance of the pickup, so capacitive loading of the cable could be a factor that's causing signal loss.

chitz 10-18-2016 09:40 AM

Quote:

Originally Posted by MarkF_48 (Post 5101160)
Do you have link to the cable you used? If everything ohms out OK on the cable, like yourself I have a difficult time understanding why it wouldn't work.

The impedance of the pre blender appears to be 1 megohm, which implies a high impedance of the pickup, so capacitive loading of the cable could be a factor that's causing signal loss.

Here's the cable Mogami recommended that I used...

http://www.markertek.com/product/279...black-per-foot

Mobilemike 10-18-2016 09:11 PM

Your cable should be fine - how did you solder the connectors?

Does the signal change when you wiggle the cable at either end?

-Mike

emmsone 10-19-2016 02:00 AM

By the way if this cable doesn't work out I found there are 10' and 15' TRS to TRS, one end right angle cables on the sweetwater website, both less than 30 bucks.

chitz 10-19-2016 04:17 AM

Quote:

Originally Posted by Mobilemike (Post 5101949)
Your cable should be fine - how did you solder the connectors? Proficient in soldering. Made wiring harnesses for aircraft in a previous life. ;)

Does the signal change when you wiggle the cable at either end? Nope. Connections tight.
-Mike

I'm pretty sure at this point, it's something with the cable choice itself.

chitz 10-19-2016 04:20 AM

Quote:

Originally Posted by emmsone (Post 5102024)
By the way if this cable doesn't work out I found there are 10' and 15' TRS to TRS, one end right angle cables on the sweetwater website, both less than 30 bucks.

Thanks! Vancebo is sending me some now! ;)

MarkF_48 10-19-2016 05:15 AM

Is the loss of signal an overall loss or more in the upper frequencies? Cable capacitance may tend to affect the top frequencies and it may not sound as bright as with a proper cable. Hopefully the different cables fix the issue.

chitz 10-19-2016 06:02 AM

Quote:

Originally Posted by MarkF_48 (Post 5102089)
Is the loss of signal an overall loss or more in the upper frequencies? Cable capacitance may tend to affect the top frequencies and it may not sound as bright as with a proper cable. Hopefully the different cables fix the issue.

It seems to be an overall loss of volume. We'll get these other cables and do more testing.

Thanks to all for the advice!

GW.

chitz 10-27-2016 03:32 PM

Update:
 
Okay, in case anyone was wondering...

I got a couple 15' TRS cables from Vancebo (Thanx Bro!) and did some more testing today.

The 6' cable still sounds best.

The 15' cables I got from Vancebo are much better than the one I made. Very usable. A very slight loss of treble is all.
I attribute that to the extra length.

The cable I made is still the worst of the lot. I contend it is because the cable itself is not suited for this application, and the extra length.

Bottom line is, I have 3 cables that will do a good job. I hope to research some more and re-make mine with something better.


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