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Post subject: Channel "jumping" / "piggybacking"? what
Posted: Mon Jan 07, 2008 10:58 am
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Can anyone shed some light for me? I'm talking about connecting a cable from channel 1 to channel 2 and then plugging in your guitar into say the 2nd input of channel 2. Is there a sonic benefit to be had? Is it safe for say a deluxe reverb? I tried it and it seemed that I could use both sets of eq,etc but is that all I can do? On most fenders, it seems channel 2 is the favorite child (reverb,trem,etc) but channel 1 usually gets the basic treble,mid,bass. What is the reason for doing this and can a regular guitar cable be used or is a speaker cable (can't think why) required? Thanks so much. I'm sure the answer is simple and out there but I just can't find anyone who knows. You guys are the BEST resource out there.


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Posted: Mon Jan 07, 2008 1:06 pm
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if you piggyback teh channels, iwould set the main channel you play through exactly the way you want it tehn and your chain. you will find that the amp breaks up more quiockly and is lounder based on your volume setings. i used this frrequently on a silver face bassman i use to have. worked real well for that amp should work good on a deluxe


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Post subject: thanks
Posted: Mon Jan 07, 2008 2:39 pm
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dear flamekaster- thanks very much for the input. maybe the "gain" from channel 1 is dumped into channel 2 so there is an additive effect? you think this is what is reffered "cascading" ala mesa? anyway- i'll try it again. i do have an attenuator (badcat leash) which really provides max grind (at any volume) so that's cool but these amps are so outwardly "simple", maybe even a bit antiquated when compared to the new, modern products out there but that's whi it's cool to know all the ins and outs of these bad boys. there's a reason we are still lusting over these amps that were "a hit before your mother was born". thanks very much and if you have any other advice i'd love to hear it. what do you call it anyway? is it "jumping" or "piggybacking"?


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Posted: Thu Jan 10, 2008 12:24 pm
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Channel jumping is "safe" per say, but the results would maybe not suit for a Deluxe Reverb because the two channels are out of phase with one another. This has to do with the reverb circuit (technical mumbo jumbo skipped) but the bottom line is that this causes the sound to be thin do to a phase cancellation effect.

On the other hand, I have my Bassman LTD jumped from Bright 2 to Normal 1 at all times and I plug into Bright 1. The other way works just as well, that is Normal 2 to Bright 1 and plug into Normal 1. The advantage to this is that you can use both the normal and bright volume knobs to mix your sound as another (sort of) tone control. I find that some stuff sounds better with the Normal volume set a bit higher and other stuff sounds better with the Bright volume set higher. Plus, you can defeat either volume by turning it all the way down and you are already plugged in the other channel. The Bassman amp has no reverb so both channels are in phase with one another.

Hope that helped. :wink:


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Posted: Thu Jan 10, 2008 3:11 pm
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i get it now. thanks for the info. the out of phase bit seems like the most important deal especially w/a DR and my twin. i do appreciate all the useful stuff you guys put out there and find this forum to be a great resource unlike some of the shop guys who clearly don't have a clue. just say you don't know! that's what the live chat guy (of a popular web based music shop)said when i asked him the same question. at least he didn't waste me time!


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