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Topic: What does this mean and how does it work? |
Richard Shatz
From:
St. Louis
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Pete Burak
From:
Portland, OR USA
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Posted 18 Oct 2011 9:08 am |
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'Not sure about the "double your gain" thing, but in general I think this is the same as on a Fender Twin Reverb with two independant channels.
I think on this amp you would...
Plug your guitar into one guitar input.
Plug a regular guitar cord from guitar input two, to the microphone input.
Now you are using both channels.
They may be out of phase, although I doubt it because the amp doesn't have a reverb channel and a dry channel (like a Twin Reverb).
The way to tell is turn one volume knob up to a comfortable level.
Now bring the other volume knob up from zero to the same volume as the other one.
If all the Bass frequencies dissappear, then they are out of phase (which only affects things when they are at that same level). |
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Noah Miller
From:
Rocky Hill, CT
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Posted 18 Oct 2011 11:01 am
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| The two channels use two separate preamp tubes for the first stage of amplification. It's basically feeding two separate preamps into a single power amp. If you plug into both preamps, you're roughly doubling the signal that gets fed to the output tubes. You can do this by plugging your guitar into one of the instrument jacks, then taking another cable and plugging it into the two other input jacks. The result is a louder, beefier sound that distorts a little quicker. |
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John Billings
From:
Ohio, USA
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Posted 19 Oct 2011 8:25 am
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| I don't think you can do that with Fenders. I believe I read that the two preamp channels were out of phase with each other??????? |
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Larry Hamilton
From:
Amarillo,Tx
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Posted 19 Oct 2011 9:08 am
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Back in the early 70's when I was playing guitar, I spliced into my cord so that could use both channels of a Pro Reverb and later a Twin Reverb. Being young and dumb I just did it and it worked and sounded fine at all volumes. I remember running the lowes more on the normal channel. Sounded good and didn't blow anything up  . After reading on the Forum about using both inputs on the nashville 112, I now do that and it sounds great with no problems.
Just my experiences right or wrong
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Keep pickin', Larry |
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Pete Burak
From:
Portland, OR USA
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Posted 20 Oct 2011 6:40 am
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| John Billings wrote: |
| I don't think you can do that with Fenders. I believe I read that the two preamp channels were out of phase with each other??????? |
jftr, You CAN do this with Fenders.
The only time they are out of phase is when they are at the exact same volume. It's very sonic-ly obvious where that point is.
Other than that point, you can use both channels to get alot of different tonal settings out of your Twin using both channels.
There are internal mods and/or outboard effects that can also be used to flip the phase of one channel on a Twin Reverb, putting both channels in phase, allowng for futhur tonal tailoring to taste.
Although that ad says that this will double the gain, I don't think they meant to suggest that using both channels will double the volume (I could be wrong). |
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Dave Hopping
From:
Aurora, Colorado
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Posted 20 Oct 2011 8:17 am
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| Back in my misspent youth,I'd go into Normal 1 of my BF Concert,Normal 2 out to a Fender Tube Reverb,Reverb Out to Vibrato 1.Had the Normal channel all treble and half bass and the Vibrato channel all bass.Interesting mix of dry high end and wet low end,especially with vibrato. |
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Henry Matthews
From:
Texarkana, Ark USA
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Posted 25 Oct 2011 1:25 pm
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I'll tell you what it means. It means they don't have any idea what they are talking about. You could jumper the inputs but it's gonna be the same as plugging into the hottest input. I feel certain that this little amp only has one channel. I course, I have been wrong. 
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Henry Matthews
D-10 Magnum, 8 &5, dark rose color
D-10 1974 Emmons cut tail, fat back,rosewood, 8&5
Nashville 112 amp, Fishman Loudbox Performer amp, Hilton pedal, Goodrich pedal,BJS bar, Kyser picks, Live steel Strings. No effects, doodads or stomp boxes. |
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Peter Harris
From:
South Australia, Australia
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Posted 26 Oct 2011 3:33 am
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In my (also!) mis-spent youth in the 60s, we often did this with a wild assortment of the then-available amps...mostly Fender & Vox...
...and FWIW, and I don't know where it came from, my memory says we used to call it 'cross-channeling'... 
I remember the results DID vary... |
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