BigBlindRay
154 posts
May 09, 2012
2:23 AM
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Hi MBHers!
I'm on the market for a good ABY signal splitter and need some advice on what works well with Harp, Seems you cant get Fat Dog splitters anymore so any recommendations would be appreciated!
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5F6H
1196 posts
May 09, 2012
2:37 AM
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Hi Ray,
Do you need the splitter to be switchable (e.g. mic into amp A, or amp B, or both)?
If you are going to use one mic into 2 amps simultaneously then a simply 1/4" Y splitter from your local electronics/hi fi store will do (mono or stereo, doesn't matter). Alternatively you can use the lo gain (#2) inputs on a Fender style amp to run a cable to the input of the next amp & split that way.
Boss pedals often have a "direct out" that will send a dry signal to another amp.
Morley do a well regarded ABY splitter box, but I have no personal experience.
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Stevelegh
496 posts
May 09, 2012
3:29 AM
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I was recommended the Radial Hot Shot.
I've never tried one as I'm yet to be in a situation where I play harp in a band, but the idea was so I could split the mic signal to an amp or to the PA.
http://www.radialeng.com/r2011/hotshotabo.php
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MrVerylongusername
2363 posts
May 09, 2012
3:35 AM
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A basic, passive A/B/Y box is a pretty easy build even for the electronically challenged like myself. The battery, resistor and LEDs can all be ommitted (and the input would then not need to be a TRS socket) but it can get confusing without the lights.
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mrdon46
81 posts
May 10, 2012
7:39 AM
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If you want to try a diy splitter that's a bit more involved but still quite doable, and has the added benefit of providing proper impedance buffering for most harp mics (esp crystal), you might consider making a jayphat (just google it for the schematic) and adding a second output jack. Because it's active (18v) your signal isn't attenuated by splitting it. I also incorporated a good quality Edcor 1:1 signal transformer into one of the outputs to prevent any possibility of ground loop hum, works like a charm.
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HarpNinja
2414 posts
May 10, 2012
7:42 AM
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Radial Twin City...but it really just depends on rig and application. The two most common issues associated with splitting your signal are tone suck and hum. The active splitters like the TC prevent both and off other benefits.
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Mike
VHT Special 6 Mods
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Ray
384 posts
May 10, 2012
1:55 PM
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I have a Radial HOT SHOT ABY splitter. I don't think you would be disappointed if you bought one. Like mine a lot.
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ElkRiverHarmonicas
972 posts
May 11, 2012
2:17 PM
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I'm having trouble reading the schematic. What happens to the yellow wires' circuit when they get to the board? I'm also curious why there's a resistor on the positive end, but no resistor on the ground. Just curious.
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David
Elk River Harmonicas
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isaacullah
1946 posts
May 11, 2012
3:08 PM
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@Dave: The resistor is there only to limit the current to the LED's. If you don't have it there, the LED's will fry right quick! It doesn't affect the signal path. As for the yellow wires, they are going into the 3PDT switch (3 pole, double throw) at the center lugs of two of the three individual switches of the 3PDT. In one orientation of the switch ("off"), they connect to the two green wires and the signal passes through the "Y" switch as if it wasn't there, and goes to the "A/B" switch. In the other orientation ("on"), the signal of both yellow wires is connected to the red wire, and thus it acts as a "Y" splitter. FYI, the "AB" 3PDT switch (on the left) is simply wired up exactly the same as a "true bypass" stomp switch in any pedal, except it shunts the signal to the "A" or "B" output depending upon the switch position, and not to "effect" or "bypass" as a real true bypass switch would do.
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isaacullah
1947 posts
May 11, 2012
3:10 PM
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Oh, and also FYI, it would also be possible to use a single tri-color LED instead of three different single color LED's. Tricolor LED's have three leads that operate them, so the wiring would be a tad more complex, but not that much more so.
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Greg Heumann
1604 posts
May 12, 2012
8:21 AM
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Here's mine. Pretty similar design. Left hand switch chooses A or B, right hand switch choses between "one or the other" and "both". Both LED's light in "both" position.
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/Greg
Last Edited by on May 12, 2012 8:23 AM
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