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Author Topic: FX loop wierdness  (Read 15128 times)
nickm57
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« on: August 17, 2008, 02:37:19 AM »

Ok using a Chandler Echo in the Fx loop, I'm getting a volume drop and the master volume is ineffective above 3.
IS it Klein/Dumblator time?

Nick
« Last Edit: August 17, 2008, 12:07:11 PM by nickm57 » Logged
JD0x0
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« Reply #1 on: August 17, 2008, 03:30:48 AM »

i was having the same problem running a bbe sonic maximizer through the FX loop
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hywelg
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« Reply #2 on: August 17, 2008, 09:59:39 AM »

i was having the same problem running a bbe sonic maximizer through the FX loop

Was? did you cure it? I'm thinking of getting one of those myself.

Thanks

Hywel Harris
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bobgoblin
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« Reply #3 on: August 17, 2008, 10:33:10 AM »

From all I've read, yes, it IS time for a D-lator/Klein.
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nickm57
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« Reply #4 on: August 17, 2008, 12:26:29 PM »

seems allot of circuitry to get the fx loop working.  I was wondering if there was a quick hack.
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Pickmaster
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« Reply #5 on: August 17, 2008, 02:53:50 PM »

OTS’s pre out is hooked on master volume pot which is 1 Meg.
So PRE OUT’s resistance is high. If your echo’s (any loop device) input resistance is lower than 1 meg you will have mismatch and obvious volume drop.
After 7, 8 on the master out resistance drops dramatically to 50 – 26 K and volume increases.
So if your device’s input can take high signal without overloading and it also has output regulator you’ll be OK.

Actually good and cheapest processor you can use in OTS’s loop is DIGITECH RP 100. With this you can compensate everything – volume, tone and also you can use noise gate which works just great. You don’t need a Kleinul/Dumbleator. Grin
« Last Edit: August 17, 2008, 06:28:19 PM by Pickmaster » Logged

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JD0x0
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« Reply #6 on: August 17, 2008, 04:59:12 PM »

i was having the same problem running a bbe sonic maximizer through the FX loop

Was? did you cure it? I'm thinking of getting one of those myself.

Thanks

Hywel Harris

i didnt fix the problem yet i just run it infront of the amp instead of the FX loop for now. the sonic maximizer sounds really good on the clean channel but it changes your OD alot, you would have to see if you like it yourself
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nickm57
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« Reply #7 on: August 18, 2008, 02:53:45 AM »

Looks like i need a buffered  loop.
The chandler unit is a very good delay, comparable to an echoplex the delays are that smooth. The digitech units they are not up to the job for me.  The other things I need to run are a tremolo unit in the loop. The rest can go into the front end.
Thanks Nick
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hywelg
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« Reply #8 on: August 18, 2008, 08:34:13 AM »

Looks like i need a buffered  loop.
The chandler unit is a very good delay, comparable to an echoplex the delays are that smooth. The digitech units they are not up to the job for me.  The other things I need to run are a tremolo unit in the loop. The rest can go into the front end.
Thanks Nick

Other have reported here that the g-sharp works well in the loop without a Kleinulator. I hope thats true since I now have one on order, should be here this week sometime!. I was considering a BBE sonic maximiser but maybe not now, especially if its not so good on the OD channel and you can't footswitch it.
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nickm57
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« Reply #9 on: August 19, 2008, 07:07:36 AM »

further investigation

It looks like my options are.

Build a tube *umblator

Buy a prebuilt one $$$$$

Niks Klein unit

Ironsounds loop.

any onions/experience  on the ironsound loop? or Klein vs a tube unit.
before I plop the money down for a Klein

Nick
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Steven_nl
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« Reply #10 on: August 19, 2008, 07:26:25 AM »

I asked the same question on the amp garage site. Yoy might look there.

I have a Kleinulator. I just ordered the loose parts to stick them in a 19 inch rack. The stadard box is fairly big. If you use a rack anyway, it might be something to think about.
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hywelg
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« Reply #11 on: August 19, 2008, 07:50:49 AM »

I have a Kleinulator. I just ordered the loose parts to stick them in a 19 inch rack. The stadard box is fairly big. If you use a rack anyway, it might be something to think about.

Please post some pics when you've done it, if I end up going for a K then it will have to go into a rack mount unit.

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JohnE
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« Reply #12 on: August 20, 2008, 02:39:08 AM »

i was having the same problem running a bbe sonic maximizer through the FX loop

I am sorry to hear you are having that problem.
Sometimes I am really stumped by some of the experiences some of our fellow forum members have with their OTS. I have had mine for about 3 months. It has no mods (except the internal trimmer turned down to 9.5). It sounds great and really gets a wide variety of tones, including all the ones that people have downloaded for us. I am currently running the BBE 482i into a G Sharp in the effects loop (it doesn't work too good with the order reversed). With that set up, it is by far the best sounding amp I have ever heard and I have extensive experience with a wide variety of very good amps. I have not heard a  Two Rock CR Sig in person, but it is hard to imagine how it could sound any great degree better. The level control on the G Sharp acts like an attenuator. It  also acts as a boost and when it is at one or two o'clock the amp gets very loud. Very little tone is lost until it is turned down below a third. I have not used the amp with just the BBE so I don't know what it does by itself, but it should provide some boost on its own. I use good quality, short, TRS cables, but I don't think that would make a lot of difference in the volume. Based on my experience, there may be some other issue that is causing your signal loss. The only thing I don't like about my set-up is that I have to keep the effects turnd nearly all the way down to keep them form being over the top. However, they still sound very good and the net result is just a loss of useable range on those effects.

Good Luck with your tone quest!
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hywelg
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« Reply #13 on: August 20, 2008, 08:20:02 AM »

It sounds like the g-sharp is compensating for the loss of volume inherent in the BBE (due to impedance mismatches).

Do you find any inconsistency with the master volume with this setup, others have noted its ineffective past a certain point?
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Jimmyd
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« Reply #14 on: August 20, 2008, 04:44:32 PM »

I use good quality, short, TRS cables,

Hi John, just wondering why you use TRS cables with the G-sharp.  Does that mean the G-sharp is a stereo unit?  If so, the OTS only sees one side of the signal or what?

Jim
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