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FRANZONI
Double Platinum Member
Ireland
3543 Posts |
 Posted - 06/17/2007 : 11:40:05
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hi all...i was wondering if its possible to add another input to the dd3 to go to the direct out on the pedal so i could run it in stereo with the ch1 before it in stereo as well...i think i read on one of the other posts in the forum that (i think) it was Dr Bob who said the way boss wired their inputs to the board makes it hard to do any mods with them....thanks...... |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 06/17/2007 : 15:17:56
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Hi FRANZONI
I hope I didn't miss the point you were trying to make, but what about
using a simple Y splitter cable
............/ DD-3
Guitar-Y
............\ CH-1
(Hard to draw in text!)
Or what about, a 1 in 2 out splitter box, like some guys use to run one guitar into 2 amps.
WARNING TECHNICAL STUFF FOLLOWS, Put on thinking caps now  .
Technically it will lower the input impedance's of the pedals, because they are now in parallel.
Like when you put two 8 ohm speakers in parallel, you will get 4 ohms - half the impedance.
But of course we are talking about values of around 500K Ohms to 1M ohms.
If the impedance gets too low - you will hear a loss in your treble register.
If it's too much treble loss, you could run the guitar into a small buffer, first & then into the Y splitter cable.
If the pedals are both 500K then they would be about 250K,
it's the same when you have very long guitar cable runs, you also get high freq. loss in the cables.
Which is exacerbated, even more by using cables that aren't low capacitance.
In case you guys have never thought about it, the coax in your guitar cables is actually a very small capacitor, between the inner core, & the outer woven shield, with the plastic on the inner wire being the insulator;
And the wires have resistance, albeit small.
The two, effectively form a low pass RC (Resistor, Capacitor) filter.
Shunting high frequencies to ground.
Sorry FRANZONI, if it was a bit too much, and I didn't really answer your question.
At least you now have one more brain cell, or a few hundred extra synaptic junctions.
Sorry if I made your brain hurt guys. 
Regards Dr. Bob  |
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FRANZONI
Double Platinum Member
Ireland
3543 Posts |
Posted - 06/18/2007 : 03:58:36
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Dr Bob..thank for all the trouble you went too,i'm sorry i didn't explain myself better...what i want to do is use the dd3 in stereo... the dry signal to one amp,the delayed signal to the other... but i want to use the ch1 in stereo as well..ie...the left and right inputs feeding into a left and right input on the dd3 so that one chorus effect goes to the dry side of the dd3 and one goes to the wet side..i saw a clip on you tube with joe bonemassa and he uses his dd3 to feed two amps one with the delayed signal,and one dry with a bit of reverb at the amp and he gets a huge sound..so i was wondering as i like to use my chorus in stereo...how hard would it be to wire a second input to the dd3 to go direct to the dry output so i could feed my ch1 in stereo into it....
p.s.... i had a gig tonight so i've already fried my brain with yeagermiester(a little shot we import from germany in our pubs here) all the reading and growth of tissue in my skull and brain regions has been nullified by this....... ..... |
Edited by - FRANZONI on 06/18/2007 04:03:37 |
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Erik dP
Silver Member
Sweden
150 Posts |
Posted - 06/18/2007 : 09:56:43
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I have the impression of that true chorus should be:
Dry signal in one channel + Total chorus in the other channel.
In fact (to what I read) a lot of old amp and stompboxes are made that way. Some users also prefer this. I have also read that one reason to have chorus in both channels were because of users that complained (without knowing) that their stereo devices (amps, boxes) worked this way. I also sent in some questions regarding my Gallien Krueger stereo amp. They showed me (in the blueprints) that exactly the same chorus signal went to both channels but with a slight different mix (dry + chorus). I think it was 4 times more chorus compared to dry in one channel and the oposite relation to the other. It DID sound like stereo anyway when I used two speakers, but not too good through my 4*12.
Therefore, I would try using "mono"-chorus with the direct output of the DD-3. Use 100% effect level (and maybe also depth).
Or maybe use a small mono mixer to mix one of the chorus outputs with the delay output of the DD-3. |
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FRANZONI
Double Platinum Member
Ireland
3543 Posts |
Posted - 06/18/2007 : 18:24:37
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| Thanks for the replies...i think i understand what your suggesting with running the ch1 off the dry output of the dd3,but as far as i can make out when running the ch1 in stereo the signal modulates between the two outputs to create the effect...i don't think there is a 'dry' output with the ch1..... does the dd6 have stereo inputs...?? |
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starr36
Platinum Member
Canada
1172 Posts |
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FRANZONI
Double Platinum Member
Ireland
3543 Posts |
Posted - 06/18/2007 : 21:20:44
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Could the dd3 be modded to the same input/output spec as the dd6..?? i know the easy thing to do would be just to get a dd6 but i like my dd3's and their sound...their simple layout appeals to me,i don't need huge delay times and reverse warp modes.. .... and if the dry output was a straight through signal from the input of the pedal could i just disconnect it and rewire a input/output straight through..??..... |
Edited by - FRANZONI on 06/18/2007 21:28:32 |
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stinkfoot
Silver Member
Sweden
181 Posts |
Posted - 06/19/2007 : 15:05:23
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If you want to run the chorus in stereo, and then add a delay to just one of the channels, don't bother modding the DD-3. Just hook the delay pedal up to one of the channels coming from the chorus, and be done with it. Adding a second input, tied directly to a dry output, would essentially be the same as running a cable around the delay pedal...
CH-1 output A -> amp A
CH-1 output B -> DD-3 -> amp B
/Andreas |
Edited by - stinkfoot on 06/19/2007 15:08:01 |
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FRANZONI
Double Platinum Member
Ireland
3543 Posts |
Posted - 06/19/2007 : 22:03:03
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yes i could do that....i was thinking of the layout of my pedalboard and i have the ch1 at the end at the moment because the outputs are laid out on the left side of the pedal for easy plugging in on a gig....thats something else i was wondering ..why is the direct out on a dd3 the same side as the input...??..do boss seriously think that most players have the room on a gig to stand in the middle with an amp either side of the stage...?? most times both amps are behind me or stacked on top of each other...some gigs the second amp has to stay in the van...!! and a lot of players who use pedal boards would find it hard to get a lead into the direct out for a stereo effect without the lead falling on top of the rest of the pedals..i know i would.....this is a quote from boss that i found in the compact pedal section of the forum about the dd6.......
"The DD-6's stereo input makes it possible to achieve true stereo delay and panning effects. It also lets guitarists and bassists connect the stereo output of BOSS' BF-3 Flanger right into the DD-6 - keeping a true stereo signal path..."
to me this is a more logical layout for a stereo setup and i think their half rack systems had it as well.... |
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ChristoMephisto
Platinum Member
Canada
1288 Posts |
Posted - 06/20/2007 : 02:03:11
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| Instead of modding a dd-3, could the dd-6 be modded to make the A output the Direct Out and the B output the delayed sound a la dd-3? |
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Erik dP
Silver Member
Sweden
150 Posts |
Posted - 06/21/2007 : 10:43:07
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Stinkfoot suggests adding the dd-3 to one of the outputs. Then I see two options in his suggestion for the delayed channel:
1. Using the normal output giving dry+delay.
2. Using the normal output with a cable plug in the dry output giving only delay.
My concern with option 2 is if the spaciness will be ruined or different due to the delayed sound getting modulated with the chorus in a different way than it is disigned for (if the delay time is close to 180 degrees of the chorus modulation you might get mono chorus as a result). It looks attractive but at least compare it with my soulution to use 100% chorus on one of the dd-3s output to get air-mixed chorus. |
Edited by - Erik dP on 06/21/2007 10:45:49 |
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stereo inputs for the dd3.....
