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  #1  
Old 04-13-2011, 06:47 AM
Slaine01's Avatar
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Speakon adapter advice

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Looking to make a speakon adapter to run from my TC Electronic RH450 into 2 x Eden EX112 cabs.
Eden Bass Cabinets - EX112

Both cabs only have 1/4 inch inputs ( single input only so no linking available) and are 8 ohm.

Can I make a speakon to 2 x 1/4 inch with the speakon being only 2 pole ( I think that is the way the RH450 output is set - but I could be wrong)

Could rip out the 1/4 inch inputs and replace with speakons but this could be an easier way just to make an adapter.
Or does anyone know where I could get one of these cables if they are available?
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  #2  
Old 04-13-2011, 07:29 AM
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Musiciansfriend has speakon to 1/4 cables and speakon to 1/4 adapters (here is one at samash http://www.samash.com/p/Neutrik_NA4L...male_-49991519). You can also buy a 2 pole or 4 pole speakon end and replace the 1/4 end of a speaker cable. Wire it 1+ to where the tip was and 1- to the sleeve.

Last edited by NoGraveConcern : 04-13-2011 at 07:31 AM.
  #3  
Old 04-13-2011, 10:47 AM
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Just replace the jack on the cab with a speakon jack and be done with it.

I got an EX112 last month, and it took me all but 5 minutes to remove the old jack and install one of these:

Neutrik NL4MPR Speakon 4 Pole Round Chassis Mount

Less than $3.00 and its a permanent solution.
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  #4  
Old 04-13-2011, 10:51 AM
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Get yourself one of these, then just daisy chain the cabs with quarter-inch cables.

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  #5  
Old 04-13-2011, 02:27 PM
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Quote:
Originally Posted by Eric Moesle View Post
Just replace the jack on the cab with a speakon jack and be done with it.

I got an EX112 last month, and it took me all but 5 minutes to remove the old jack and install one of these:

Neutrik NL4MPR Speakon 4 Pole Round Chassis Mount

Less than $3.00 and its a permanent solution.
Thought about it but as I will be running 2 cabs I would need to install two speakons on one cab (as the RH450 has only one output) to link and I didnt want to route a 2nd hole into the cab.
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  #6  
Old 04-13-2011, 02:41 PM
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You have a couple of options, you could either go to www.greatcables.us, and have them make you one.

Or you could go to Redco Audio - Redco Audio Home Page and get some bulk speaker cable, a speakon end, and a couple of 1/4 ends, and make your own.

Or you could build a parallel box and use three separate speaker cables.



Here's a thread with a similar problem

Ampeg 810 with Single 1/4 Input Question
  #7  
Old 04-13-2011, 03:33 PM
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If you don't want to modify the cabs I think it's best to build a neat little splitter box like Mjury02's above. The next simplest would be to buy a Speakon panel-mount socket and a one inch hole cutter - take the socket plate out of one of the cabs and parallel the Speakon to the jack socket with tip to +1 and shaft to -1. Link the cabs with the 1/4" jacks.
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  #8  
Old 04-14-2011, 04:01 AM
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Thanks guys,
If I was to make a male speakon to 2 x male 1/4 inch connectors - how would I wire it up?
I think the output on the RH450 is probably an NL2 type speakon (+1 and -1)

Could I do it this way or would I need an NL4 and run +1 and -2 to one 1/4 inch and then the +2 and -2 to the 2nd 1/4 inch?
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  #9  
Old 04-14-2011, 06:19 AM
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You would wire them both to the +1 and -1 so that they would be in parallel and wired to the proper leads on the speakon connector.

What happened to buying a single cable with a speakon on one end and 1/4 on the other? Seems like the easiest way if you don't want to modify the cabs.

If you want to get the benefits of speakon, still have the option of 1/4 inputs, and be able to piggy back your cabs in parallel then you need to install these in you cabs: Jacks and Jack Plates, Jack Plate Kit 2 Speakon 2 1/4" | Speaker Hardware
  #10  
Old 04-14-2011, 10:28 AM
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Quote:
Originally Posted by Slaine01 View Post
Thanks guys,
If I was to make a male speakon to 2 x male 1/4 inch connectors - how would I wire it up?
I think the output on the RH450 is probably an NL2 type speakon (+1 and -1)

Could I do it this way or would I need an NL4 and run +1 and -2 to one 1/4 inch and then the +2 and -2 to the 2nd 1/4 inch?
The RH450 is more likely to have the four pole version wired +1 and -1. All the equipment I have purchased have been so equipped.

If you make the Y cable remember that if you only use one cabinet the other cable is still live.

Wire both tips to +1 and both sleeves to -1. Ignore the second pair and leave them blank.
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  #11  
Old 04-14-2011, 10:36 AM
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Quote:
Originally Posted by Mjury02 View Post
You have a couple of options, you could either go to www.greatcables.us, and have them make you one.

Or you could go to Redco Audio - Redco Audio Home Page and get some bulk speaker cable, a speakon end, and a couple of 1/4 ends, and make your own.

Or you could build a parallel box and use three separate speaker cables.



Here's a thread with a similar problem

Ampeg 810 with Single 1/4 Input Question
Are those insulated 1/4" jacks? If not, the box may carry live voltage.
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  #12  
Old 04-14-2011, 11:06 AM
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I didn't make the box, I found a picture of it on another thread. I plan to build something like this, but I'm gonna use only speakons, and a plastic box.

But it does look like there are rubber spacers in front of the 1/4'' jacks.
  #13  
Old 04-14-2011, 04:32 PM
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Quote:
Originally Posted by BassmanPaul View Post
The RH450 is more likely to have the four pole version wired +1 and -1. All the equipment I have purchased have been so equipped.

If you make the Y cable remember that if you only use one cabinet the other cable is still live.

Wire both tips to +1 and both sleeves to -1. Ignore the second pair and leave them blank.
If the cable is "live" if one of the splits isnt plugged in - and it is just hanging there not touching anything - will it damage the amp?
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  #14  
Old 04-14-2011, 04:34 PM
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Just bought this - sweeet...

Power Y Adapter III w/2 male legs
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  #15  
Old 04-14-2011, 05:58 PM
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Quote:
Originally Posted by Slaine01 View Post
Just bought this - sweeet...

Power Y Adapter III w/2 male legs
For $40 ?????

Ouch . . . .

You could have made your own Speakon Y cable for about $15, and it would have been easy to do.
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  #16  
Old 04-14-2011, 08:32 PM
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Nothing over 40hz - it just stings a little.
 
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Quote:
Originally Posted by Eric Moesle View Post
For $40 ?????

Ouch . . . .

You could have made your own Speakon Y cable for about $15, and it would have been easy to do.
Dude, you SERIOUSLY havent seen me try to solder!!!!!!!
$40 well spent...
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  #17  
Old 04-14-2011, 08:36 PM
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But that's the thing about Speakons . . . no soldering. You stick the wire in a hole and tighten a screw. Pretty much idiot-proof.

But if purchasing that cable is in your comfort zone, more power to you . . . and I'm glad you found a solution!
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  #18  
Old 04-14-2011, 09:37 PM
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Quote:
Originally Posted by Slaine01 View Post
Just bought this - sweeet...

Power Y Adapter III w/2 male legs
So where's the speakon connector? See post #4 for the easiest solution.
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  #19  
Old 04-14-2011, 09:56 PM
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Originally Posted by Munjibunga View Post
So where's the speakon connector? See post #4 for the easiest solution.
The copy says it also comes in Speakon flavour -- hopefully that's the one the OP got.
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  #20  
Old 04-14-2011, 10:22 PM
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Originally Posted by Bob Lee (QSC) View Post
Are those insulated 1/4" jacks? If not, the box may carry live voltage.
If I'm not mistaken it shouldn't matter. It would be no different than touching the sleeve on a 1/4" speaker cable.
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