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Post by gbowman on Jan 19, 2018 9:21:19 GMT -7
Hi Folks - I read somewhere that by using a simple on/off footswitch plugged into either input, i can toggle between the hi and lo inputs, effectively having a boost or quiet setting. Does this actually work? I can imagine that the foot switch would need to use shielded cable. Any concerns? Anybody do this?
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Deleted
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Post by Deleted on Jan 19, 2018 9:29:39 GMT -7
Use a shielded on/off switch and plug it into the high input. If you plug your guitar into the high, well, you're always going to be on high.
Works like a charm! I do it with the DB4 all the time.
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Post by gbowman on Jan 19, 2018 10:11:55 GMT -7
So what is actually happening in the circuit when open/closed?
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Post by Deleted on Jan 19, 2018 10:28:38 GMT -7
You're getting about a 3dB boost in input gain, which equates to a little more volume and oomph.
I like to use it more for evening out low/high output pickups more than for the actual volume/gain boost. The higher the amp is turned up, the less of a difference it seems to make.
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Post by premiumplus (Dave) on Jan 19, 2018 10:36:56 GMT -7
Works great. Do what Frank says, though. Use a shielded cable.
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Post by gbowman on Jan 19, 2018 11:15:41 GMT -7
It seems a lot of the time the amp is a bit too low when comping and it would be nice to come up a bit for comping or just clean parts. (or the other scenario is I set the amp loud enough for comping and as soon as I hit a pedal to solo, it is way too much)
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Post by Jaguarguy (Mike) on Jan 19, 2018 12:41:24 GMT -7
Doc has the variable boost switch is a really neat idea - you can control how much extra boost you get from the pedal.
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Post by zpilot on Jan 19, 2018 23:06:48 GMT -7
The footswitch trick you are asking about doesn't really give you a boost. It only does what you are asking about. It switches between the two inputs. One is 3-6 dB louder than the other. If you are really interested in how those two input jacks differ, this is a pretty good video. The explanation is in the latter part of the video.
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Post by TNTall on Jan 20, 2018 5:49:52 GMT -7
I didn't have time to watch the video, but isn't the lo input just a resistor bleeding off some signal to make it less? I think that's how it was on Fender amps. I've been wondering why you couldn't do that with a footswitch. That could be useful to me when changing from a strat to Les Paul.
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Post by gbowman on Jan 26, 2018 9:47:01 GMT -7
So I tried using a latching foot switch (Boss something or other) into the high input / gtr low and it worked a treat. Thanks for everyone's comments. I can see it being most useful as a kind of boosted clean channel for bringing my comping up in the mix. Works great.
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