Head to Cab Cable

[tube power]

I want to make a 20 foot speaker cable to go from my Blackheart Handsome Devil
to my 2x12 cab.

I keep the speakers jacked separate because I use it stereo once in a while.

So I connect the two 4 ohm outs to each 8 ohm speaker jack per Blackheart.

I would like to use a 12 or 14 gauge 3 wire extension cord and use the ground for both
jacks and black for one jack and white for the other.

That shouldn't be a problem, should it?
Same amp, same ground right?

[Chuck H]

I don't have a clear picture of what you propose. Could you draw it out schematically?

[nosaj]

i think the white(negative or neutral) is what he calling ground. The green or bare copper wire is unused. And it's not stereo just 2 mono outputs. I'd say wire your speakers back together and just use the single output jack instead of one wire per speaker since this isn't a stereo amplifier.
jason

[tube power]

Just want to share the neg so I only need one cable to connect two speakers.
I don't want to rewire the speaker jacks, I do use it stereo on occasion.

Any reason that this would be a problem?

[jamesmafyew]

You really don't even need 2 plugs at the amp end if I understand you correctly. Just wire one plug at the amp end, to plug into one 4-ohm jack, then wire two plugs at the other end, connected in parallel. Doesn't matter what you do with the 3rd conductor. Also, anything bigger than 16-gauge wire is probably overkill here. 14 at most... beyond that, it's expense with really no return.

[riz]

Or you could make yourself a little splitter box, to use at the cab end. It's more connectors, but handy to have around.

[tube power]

You really don't even need 2 plugs at the amp end if I understand you correctly. Just wire one plug at the amp end, to plug into one 4-ohm jack, then wire two plugs at the other end, connected in parallel. Doesn't matter what you do with the 3rd conductor. Also, anything bigger than 16-gauge wire is probably overkill here. 14 at most... beyond that, it's expense with really no return.

Cheaper too!
Thanks for the brain power.

Now how about this?

[jamesmafyew]

I've done something similar before, but when using two heads I do like to keep the grounds separate and use 4-conductor cable ("star-quad"). In theory what you've drawn works but it also creates a big ground loop and potentially other problems.

[nosaj]

[ATTACH=CONFIG]15306[/ATTACH]

Just want to share the neg so I only need one cable to connect two speakers.
I don't want to rewire the speaker jacks, I do use it stereo on occasion.

Your setup is definatly still mono just 2 directions. I have a HD and do what your doing also. If it had 2 channels and you could output a left/right then it would be stereo.

jason

Noun 1. stereo - reproducer in which two microphones feed two or more loudspeakers to give a three-dimensional effect to the sound
stereo system, stereophonic system, stereophony
amplifier - electronic equipment that increases strength of signals passing through it
boom box, ghetto blaster - a portable stereo
iPod - (trademark) a pocket-sized device used to play music files
quadraphonic system, quadraphony, quadriphonic system - a stereophonic sound recording or reproducing system using four separate channels
reproducer - an audio system that can reproduce and amplify signals to produce sound
Walkman - (trademark) a pocket-sized stereo system with light weight earphones
2. stereo - two photographs taken from slightly different angles that appear three-dimensional when viewed together
stereoscopic photograph, stereoscopic picture
anaglyph - moving or still pictures in contrasting colors that appear three-dimensional when superimposed
photo, photograph, pic, exposure, picture - a representation of a person or scene in the form of a print or transparent slide; recorded by a camera on light-sensitive material
Adj. 1. stereo - designating sound transmission from two sources through two channels
stereophonic, two-channel
electronics - the branch of physics that deals with the emission and effects of electrons and with the use of electronic devices
biaural, binaural - relating to or having or hearing with two ears; "binaural hearing"

[tube power]

[ATTACH=CONFIG]15306[/ATTACH]

Just want to share the neg so I only need one cable to connect two speakers.
I don't want to rewire the speaker jacks, I do use it stereo on occasion.

Your setup is definatly still mono just 2 directions. I have a HD and do what your doing also. If it had 2 channels and you could output a left/right then it would be stereo.

jason

Noun 1. stereo - reproducer in which two microphones feed two or more loudspeakers to give a three-dimensional effect to the sound
stereo system, stereophonic system, stereophony
amplifier - electronic equipment that increases strength of signals passing through it
boom box, ghetto blaster - a portable stereo
iPod - (trademark) a pocket-sized device used to play music files
quadraphonic system, quadraphony, quadriphonic system - a stereophonic sound recording or reproducing system using four separate channels
reproducer - an audio system that can reproduce and amplify signals to produce sound
Walkman - (trademark) a pocket-sized stereo system with light weight earphones
2. stereo - two photographs taken from slightly different angles that appear three-dimensional when viewed together
stereoscopic photograph, stereoscopic picture
anaglyph - moving or still pictures in contrasting colors that appear three-dimensional when superimposed
photo, photograph, pic, exposure, picture - a representation of a person or scene in the form of a print or transparent slide; recorded by a camera on light-sensitive material
Adj. 1. stereo - designating sound transmission from two sources through two channels
stereophonic, two-channel
electronics - the branch of physics that deals with the emission and effects of electrons and with the use of electronic devices
biaural, binaural - relating to or having or hearing with two ears; "binaural hearing"

The feed to the two amps is from a stereo delay (t.c. electronic Flashback)
I guess it's stereo, sounds like it especially on Ping Pong.

Granted, there's not much separation, 1 inch

P.S. Heck of an amp ain't it?

[tube power]

I'm going to cut this in half, and have two 25' lines I'll duct tape together...

Shop for Southwire 50 Ft. Black 14/2 Landscape Lighting Cable (214663) from The Home Depot

[nosaj]

Yea it freaking awesome I haven't heard a better sounding amp. I took 2 12's from and old 60 radio they're 20 watters and it sounds so awesome. Fixing to change the tubes on it, what do you use? I still have the chinese one so it should get even better. Most people here in the pensacola area never heard of them.

jason

[tube power]

Yea it freaking awesome I haven't heard a better sounding amp. I took 2 12's from and old 60 radio they're 20 watters and it sounds so awesome. Fixing to change the tubes on it, what do you use? I still have the chinese one so it should get even better. Most people here in the pensacola area never heard of them.

jason

One has Sovtek the other has JJ's
No matter what I've had in them they sound great.

[Enzo]

Instead of bothering with custom cables and such, why not just rewire the 2x12 cab jacks for stereo/mono instead of two mono one-speaker jacks? Many commercial cabs are wired this way. You plug into the mono jack, and it feeds both speakers. Plug into the stereo jack and it disconnects one of the speakers, leaving that only accessed by the mono jack.

Now one plain vanilla cord is all you need from this amp, and the cab can still be run stereo whenever you want.

[Chuck H]

So I connect the two 4 ohm outs to each 8 ohm speaker jack per Blackheart.

It might be worth mentioning...

Some Mesa products use switching jacks to select the OT secondary tap. In this case NOT using both jacks may not select the intended OT secondary and reflect the wrong impedance to the power tubes. By your statement above I think it's possible that Blackheart may be doing this. In other words, be sure your not using the wrong impedance setting by not using both jacks.

And I agree with Enzo that, in the event that you only need to use one jack, rewiring the cabinet is the most convenient thing to do.