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Solder a 1/4" jack input to driver help

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duppy conqueror View Drop Down
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    Posted: 10 August 2016 at 5:33pm
This is my first time that Im going to solder
I think I bought a stereo input when I should have bought a mono. Could I use it anyway or do I need to buy a new mono input?

and now please help me with how I should solder the cables.  I dont know where the cables should go

Heres some pics ( marked them with numbers )
Thanks for help




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Post Options Post Options   Thanks (0) Thanks(0)   Quote fatfreddiescat Quote  Post ReplyReply Direct Link To This Post Posted: 10 August 2016 at 5:46pm
I would avoid using jack plugs, take a look at Neutrik speakon connectors, also the jack plug looks like the type that is molded to signal cable, which is far to thin to use for speaker cable.
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Post Options Post Options   Thanks (1) Thanks(1)   Quote GAZ. Quote  Post ReplyReply Direct Link To This Post Posted: 10 August 2016 at 7:09pm
Ideally you don't want to be using jacks for speakers, if the jack plug ends up getting pulled halfway out you get a short circuit which will result in damage to your amplifier. Speakons are far superior and I would advise using those instead.

However should you wish to proceed anyway you need to connect "left" to 1 and "right" to 2. Then join 1 and 3 on the jack socket. Be sure to use speaker cable and not input cable for you speaker leads.
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duppy conqueror View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote duppy conqueror Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2016 at 9:30am
hmm I already have jack on the other bass bin so was thinking of doing the same on the other.
what could go so wrong with the amp?
but this is the right way? :

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Post Options Post Options   Thanks (1) Thanks(1)   Quote APW Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2016 at 10:37am
Originally posted by duppy conqueror duppy conqueror wrote:

what could go so wrong with the amp?

you can blow the output stage, this can be expensive...... possiably rendering the amp as scrap!!

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Post Options Post Options   Thanks (1) Thanks(1)   Quote TMH Music Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2016 at 12:38pm
Originally posted by fatfreddiescat fatfreddiescat wrote:

I would avoid using jack plugs, take a look at Neutrik speakon connectors, also the jack plug looks like the type that is molded to signal cable, which is far to thin to use for speaker cable.


This is the way to go. Use jacks at your peril.
Nothing is foolproof because fools are so ingenious
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Post Options Post Options   Thanks (1) Thanks(1)   Quote GAZ. Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2016 at 12:42pm
I once lent an old amplifier to a mate of mine that had jack speaker outputs. At some point one of the jacks got pulled out slightly creating a short circuit. This blew the amp channel into next week, and it had a high DC voltage on the output that once reconnected properly, burned out the speaker that was connected to it.
I also remember an incident from when I was as school, involving an amplifier with jack inputs and outputs, and a microphone and speakers that someone plugged in the wrong way round! The result was a microphone that pretty much caught fire!

Jacks were used as speaker connectors on old 70's and 80's equipment as that's all there
Was back then. Plus amplifier power was much less. You wouldn't be able to put the power of a modern day amplifier through a jack, especially on bass duty. On slightly later equipment XLR was used as the speaker connector. They latch so cannot be pulled out by accident easily, could not create a short circuit and had much higher current rating. This was still only as there was no dedicated speaker connector.

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Post Options Post Options   Thanks (1) Thanks(1)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2016 at 1:59pm
Jacks are definitely a bad choice, although most guitar cabs, etc. still have them.   Confused

In your case why not just use one of these:

http://www.ebay.com/itm/2-Way-Recessed-Sub-Speaker-Box-Terminal-Binding-Post-Cup-Round-Spring-Clip-Plate-/361385693492?hash=item5424441134:g:098AAOSwgNRV8k47

"also the jack plug looks like the type that is molded to signal cable, which is far to thin to use for speaker cable. "

+100







Earplugs Are For Wimps!
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Dub Specialist Sound Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2016 at 6:01pm
buitifull Fane Cresendo driver there Big smile

Edited by Dub Specialist Sound - 11 August 2016 at 6:01pm
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Post Options Post Options   Thanks (1) Thanks(1)   Quote jammin75 Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2016 at 6:36pm
Originally posted by Earplug Earplug wrote:

Jacks are definitely a bad choice, although most guitar cabs, etc. still have them.   Confused












i know sum one who uses jack plugs to his scoops LOL
feel the vibes !!!   "Who Feels it Knows it"            Strong like Lion              
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duppy conqueror View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote duppy conqueror Quote  Post ReplyReply Direct Link To This Post Posted: 12 August 2016 at 1:34pm
If I change it to the neutrik speakon should I have a 2 pole neutrik like this:

and Im going to link my two boxes so what I need is two neutrik jacks in one box and one in the other.

today the link connecting looks like this now:



Edited by duppy conqueror - 12 August 2016 at 1:35pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GAZ. Quote  Post ReplyReply Direct Link To This Post Posted: 12 August 2016 at 2:42pm
Use the neutrik NL4MP or if you prefer, neutrik NL4MPR. You don't need to use the type with jack in the middle.
Connect you speaker to the 1+ and 1- terminals on the speakon. The + going to the right hand terminal on the speaker where the red spot is. You can pick up all kinds of different lengths of speakon cables ready made from Thomann or eBay etc.
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