HarpNinja
1319 posts
Apr 11, 2011
8:14 AM
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Is there a way to run the VHT Special 6 with the INTERNAL speaker and an EXTERNAL speaker at the same time?
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Mike
Quicksilver Custom Harmonicas
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5F6H
603 posts
Apr 11, 2011
8:49 AM
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I would avoid doing so, but yes there are ways in which this could work, but there are many more permutations that will result in blown tubes or worse.
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joshnat
126 posts
Apr 11, 2011
10:59 AM
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I've done this. The internal speaker gets switched off when you use one of the speaker out jacks in the back of the combo. The stock speaker is 16 ohms. I now have an 8 ohm Ragin Cajun in there, so I had already rewired the internal to the 8 ohm jack. Sounds good by the way.
To run both the internal and another 8 ohm Ragin Cajun, I added an input jack to the combo that just runs to the speaker. Then I run a parallel speaker line from the 4 ohm output on the combo, back into the speaker jack in the combo (to drive the internal speaker) and back out to a second speaker cab that used to be a Fender champ. By plugging into the 4 ohm jack on the combo, it switches off the 8 ohm signal to the speaker, so my second speaker jack can power it.
It works. Sort of. I never got around to troubleshooting, but the sound is pretty thin in both speakers at 4 ohms, and at 16 ohms. It sounds best at 8 ohms, which is the impedance of just one of the speakers. It's probably something as simple as a bad connection in the parallel speaker cable I made, but I don't know. From what I understand, you can probably run the amp from the 8 ohm tap with a 4 ohm load without too much trouble, but I wouldn't gig it all night without really figuring out what's going on!
If none of this makes sense, let me know and I can sketch a diagram.
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bluzlvr
424 posts
Apr 11, 2011
1:46 PM
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Has anybody tried using the Special 6 (non combo) head with different speaker configurations such as a 4x10 or a 1x12 etc.
I'm assuming the Special 6 head is the same as the combo only without the speaker...
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myspace
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jimr
7 posts
Apr 11, 2011
6:06 PM
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You could run two 8 ohm speakers without altering the amp by making a custom parallel wired cable. Here is how. Assume your speaker cable has one gold and one silver colored wire. You connect two cables to a mono phone plug. Gold wires to tip and silver wires to sleeve. Make one cable 6 in long and connect it to an in-line female mono phone jack with gold to tip and silver to sleeve. This is for the internal speaker cable. Make the other cable the length needed to go to the extension speaker and connect to a mono phono plug with gold to tip and silver to sleeve. Power off 4 ohm tap.
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joshnat
130 posts
Apr 12, 2011
7:44 AM
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Good point from Jim, and undoubtedly easier than my solution. But it means you have to unplug the speaker from the internal jack when you want to run it with the external cab. I took the mesh off the back of my SP6 but found that the hole was too deep to be able to carry anything back there without it falling out, even the power cable! So I stapled the mesh back on and tried to make all the functions accessible from the outside.
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