Einstein serial Loop

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reckon86

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Hi there!

I noticed that I have to turn up the channel volumes pretty loud to get 0dB on my TC G-Major.
The G-Major has an input impedance of 13k, does anybody know what the Loop in the Einstein has? Maybe I'm loading the loop too much??
Thanks,
Andi!
 
13k is a joke. They never heard about high Z inputs.
Every cheap pedal works better.

The send of Diezel loops is maximim 10k. So the
unit should have minimum 47k. That´s a rule.
But it seems not for TC.
 
Hi!
Ok, that bothers me.
The G-Force has 1M impedance...
The unit does sound good to my ears, though...
Any G-Major user out there?
Does it work out for you?

Thanks for the info, Peter!

Greets,
Andy
 
Try switching the Input range to "consumer". You can find this option in the I/O menu.
 
I'm using a Major and never go as high as 0dB - running in the "pro" level position. If you play clean (no compressor) you'll easily get them (0dB) - the input then overloads/clips way too fast. Set the meter to a max of -3dB or so (again, no compressor) - thats the way I'm using my stuff with Diezels for ages.
 
. . . and check if the outout level of the patch (!) is really set to 0dB - some are set pretty low if I remember correctly.
 
Hi!

Thanks for your advice!

Try switching the Input range to "consumer". You can find this option in the I/O menu.
Click to expand...
Yes, I switched to consumer to get levels right, so getting 0dB is not so much of a problem.
I'm just not so happy with the sound of the unit in bypass compared to the "pure" Diezel. The sound, even if the unit is set to unity gain, is somewhat compressed for lack of better words. Playing some distorted lines the level goes up and down to about -3db, playing some chords on the same settings I get -6dB reading. It really sounds like there is a compressor in the path.
I didn't have this phenomena with my friend's G-Force. Now I assumed that could be due to the low impedance of the unit compared to the 1M of the G-Force...

Loading a 10k source with a 13k load doesn't seem to be optimal...

I'll write TC about that problem, I'm interested in their point of view...

I wasn't so picky about effects before using a Diezel, but now, I really want to preserve this awesome sound.
I could play in channel 2 for days, I simply don't want to put my guitar down!

This is close to addiction, but no rehab for me;-)))
 
reckon86":1m4knj2l said:
I'm just not so happy with the sound of the unit in bypass compared to the "pure" Diezel. The sound, even if the unit is set to unity gain, is somewhat compressed for lack of better words.
Click to expand...

Well, that's from my experience somewhat normal for the G-Major. I found the unit extremely tone sucking when used in the serial loop and always used a looper to take it out of the loop when I didn't use it.
I now have a Rocktron Intellifex in the parallel loop and I'm very happy. I don't use many effects so it doesn't bother me that I can't use some effect in this configuration.
 
I simply don't understand, why TC uses 13K impedance...
I had the G-Force (1M imp) in the serial loop in bypass, and it didn't seem to suck tone.

I will open up the G-Major and increase its impedance, lets see, if it works better with 50k.

I'll post the results!

Regards,
Andy
 
I don't no much about the electronics but I'm really interested in hearing if your plan will work out the way you hope :)
 
I hope so, too.
I did some measurements yesterday. Response is pretty flat from 20-20k.
The input topology is standard, based around some NE5532(not that bad, I was surprised;-).Increasing input impedance should be just a matter of increasing some resitor values, no big deal.

I'll measure the range after the change and post results. I hope to get better level and overall a less compressed sound when the unit is in the loop.
Greets,
Andy
 
Ok, I did the mod!

First of all:
Opening the G-Major wasn't a delusion. The components are good, nice PCB work and nice (ALPS) pots. Everything is clean.
On first sight, the quality is very good.

Problem was the low inpedance input (13k) compared to the 10k serial output of my Einstein. I had to turn up the input knob to get goog levels and with the unit in the serial loop, the tone was somehow compressed.

I traced the input circuit and draw a schematic.
I decided to increase the input impedance of the unit to about 50k. I didn't want to go higher, as I would have had to change other things, too.
What I actually changed were 8 resistors, 2 in every signal path. (If anybody is interested, I could show exactly how to do it).

I put it back on yesterday and did some testing. Everything fine.
The I put it back into the Einstein loop and immediately noticed that I had to turn down the input know, as I was overdriving it. (Same settings as before the mod) So that worked out just fine.
Now the sound check.
I set the G-Major in bypass mode and adjusted it that the volume without it matches the volume with the unit in the loop.

The compression is gone, I really can't hear a difference in sound, maybe slightly, but could be imagination.
MUCH better than before!!
I'm happy with the rig now :rock:

Cheers,
Andy
 
That is interesting to hear. I found the G-Major I once had was quite tone sucking but you seem to have solved this. If I ever buy another G-Major I will gladly come back at you and ask you the details about the mod :D
 
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