Split signal and effects....

bluehevy75 · #1 09-11-2009, 06:47 AM

I am running a dirty rig and a clean rig...both old tube heads...
I am splitting my signal with a Lehle P-split...

http://www.lehle.com/

When I use pedals like my "boost" or my "fuzz" I lose signal from my clean rig...even though it is a different amp....pedals like "tremolo" have little or no effect on the clean rig...

What gives? I thought the P-Split was supposed to fix stuff like that.

Thanks for any help you can give.

RickenBoogie · #2 09-11-2009, 08:11 AM

Are you sure the clean amp is losing, or is the dirty amp gaining?

bluehevy75 · #3 09-11-2009, 08:21 AM

Quote:

Originally Posted by RickenBoogie

Are you sure the clean amp is losing, or is the dirty amp gaining?

the dirty amp is gaining depending on the volume of the pedal relative to the vol of the dirty amp...but the clean amp is definitetly loosing signal and (or) sound...

PBass101 · #4 09-11-2009, 08:22 AM

Email Lehle.

bluehevy75 · #5 09-11-2009, 11:13 AM

Really?! I was hoping there was some easy fix I was overlooking. I re-checked the manual at lunch and I was fed into the right inputs/outputs.

Jazz Ad · #6 09-11-2009, 12:53 PM

The Lehle is a passive split, therefore it will have impedance issues, especially with hi gain units such as fuzz.
You need an active split to fix this.

bluehevy75 · #7 09-11-2009, 01:32 PM

Quote:

Originally Posted by Jazz Ad

The Lehle is a passive split, therefore it will have impedance issues, especially with hi gain units such as fuzz.
You need an active split to fix this.

I guess I goofed up. I thought the P-Splitter would fix all of those kinds of problems. Any easy/cheap fix type recomendations or am I going to have to drop $$$ to fix this problem?

I'm worried active will color my sounds in ways that are out of my control. Any suggestions on good brands?

FeuerFrei · #8 09-11-2009, 01:40 PM

http://www.bosscorp.co.jp/products/en/LS-2/

bluehevy75 · #9 09-11-2009, 02:02 PM

Quote:

Originally Posted by FeuerFrei

http://www.bosscorp.co.jp/products/en/LS-2/

Okay, that seems pretty straight forward and affordable. I know that the Lehle reduced some phase and noise issues I had. I look at the Boss manual and it really didn't talk about phase or ground loops at all. I guess I need a box that is actually doing a few things. But I'm looking for something that doesn't have it's own tone. Maybe I'm asking too much.

Other ideas or do we think the boss could be the right product?

Thanks!!!

Jazz Ad · #10 09-11-2009, 02:26 PM

The LS-2 is indeed the cheapest reasonnable solution for this kind of use.

bluehevy75 · #11 09-12-2009, 07:39 AM

I'm thinking a little clearer now. I should use the Lehle to split the signal and take care of ground loops and phasing issues when splitting the signal and use the boss to loop on the effects chain and fix some of those impedence issues. Got it. Thanks guys.

KH

gillento · #12 09-12-2009, 11:08 PM

I noticed the same thing with my P-split.
But oddly, messing with the Ground button on one of the channels seemed to help.

But try to contact B. Lehle himself, he is very helpful.

bluehevy75 · #13 09-13-2009, 05:19 PM

Quote:

Originally Posted by gillento

I noticed the same thing with my P-split.
But oddly, messing with the Ground button on one of the channels seemed to help.

But try to contact B. Lehle himself, he is very helpful.

The ground button cut bad noise way way down but did nothing about the volume/signal cut on the clean amp when I turned on a boost or fuzz on the dirty side. I emailed Lehle a couple of days ago but haven't heard back yet.

bluehevy75 · #14 09-14-2009, 12:05 PM

I recieved a very helpful reply B. Lehle. He suggested a his Sunday Driver. (http://www.lehle.com/frameset.php?country=us&lang=en) If my understanding is correct it is essenially pre-amp/booster/buffer?.

My question is will my EHX Line Power Booster (LPB-1) do the same thing?

B. Lehle suggested putting the Sunday Driver before the P-Split which did not sound intuative to me at all. Will the LPB-1 serve the same function if I put it in the same place or are these two different machines?

I know I can just "try it" but I want to make sure I'm not messing anything up. I'm not super well-versed in the world of pedals.

I found some info here:

http://acapella.harmony-central.com/....php?t=2191269

but it made little sense to me. Sorry for including a link to Harmony Central.

Thanks,
KH

Jazz Ad · #15 09-14-2009, 12:31 PM

Yes the Sunday Driver (or any other preamp) would be able to fix this issue by preventing impedance mismatch. It's just becoming a very expensive and complicated rig for such a simple task.

bluehevy75 · #16 09-14-2009, 01:54 PM

Quote:

Originally Posted by Jazz Ad

Yes the Sunday Driver (or any other preamp) would be able to fix this issue by preventing impedance mismatch. It's just becoming a very expensive and complicated rig for such a simple task.

I agree. What about the LPB-1? I have one. Will that fix the issue if I put it in the right spot? I know the LPB-1 is a boost. I don't know if it is a pre-amp.

Thunderscreech · #17 09-14-2009, 03:03 PM

Quote:

Originally Posted by bluehevy75

I agree. What about the LPB-1? I have one. Will that fix the issue if I put it in the right spot? I know the LPB-1 is a boost. I don't know if it is a pre-amp.

It's not technically a preamp. It's a simple transistor based linear amplifier. So, in other words, no.

bluehevy75 · #18 09-14-2009, 03:25 PM

Quote:

Originally Posted by Thunderscreech

It's not technically a preamp. It's a simple transistor based linear amplifier. So, in other words, no.

Ok sounds like I'm going to have to get an LS-2. We're pretty sure that it will fix the problem though?

niftydog · #19 09-14-2009, 05:54 PM

Any buffer amp will help fix the problem. Put any non-true bypass pedal in the chain at the right spot and things should improve. Worth trying before you part with some hard-earned.

Two places I'd try - if you have a passive bass, but a buffer between the bass and the splitter. If you have an active bass you might instead try a buffer after the splitter but before the offending low-input-impedance fuzz pedal.

bluehevy75 · #20 09-15-2009, 11:03 AM

I'm not trying to beat a dead horse but I'm a little confused. I have a passive bass. Does that mean the buffer must go before the P-split? If so, my hopes of having a "pure" clean channel are out the window.

If I were to get an LZ-2 would I use that like I am currently using my pedal loop box on the signal going to the dirty rig? Or would the LZ-2 need to somehow go before the P-Split as well?

I'm going to have to buy or make something as I don't have any non-true-bypass pedals.

If anyone can't point me towards something I can make that would be cool too. I can use a solder gun and read basic schematics.