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Blue Aran - Pre-assembled twin NL4MP speakon dish

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levyte357- View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357- Quote  Post ReplyReply Direct Link To This Post Topic: Blue Aran - Pre-assembled twin NL4MP speakon dish
    Posted: 09 January 2017 at 5:52pm


Great idea, anyone know of NL8 equivalent?
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Andy Kos View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Andy Kos Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2017 at 12:27am
Next on the list.

just a guy with a warehouse and a few speakers... www.bluearan.co.uk
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cookie-dj Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2017 at 5:29am
ordering 4 of these when my speakers come back from the paint shop!

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Post Options Post Options   Thanks (0) Thanks(0)   Quote midas Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2017 at 8:15am
Already got some on the way....
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jacethebase Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2017 at 8:16am
Why would you not just solder them? The less connections in a van to go wrong the better.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TRE4U2NV Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2017 at 8:43am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote concept-10 Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2017 at 9:34am
Originally posted by jacethebase jacethebase wrote:

Why would you not just solder them? The less connections in a van to go wrong the better.

Have to agree, connections like this are ok if you are regularly taking things apart but surely a soldered joint is better in every way.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote nickyburnell Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2017 at 9:40am
I have similar from NJD cabs. Has the board but then you solder on wires.
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Andy Kos View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Andy Kos Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2017 at 9:51am
The speakons are soldered in - the idea of the links on the PCB is to save the 'hassle' of soldering in 4 short links and trying to solder two wires onto one speakon pin.

If you're good at soldering, I guess its not so bad, but I have seen some proper messy soldering jobs with people trying to do this, and failing, with straggly strands of copper shorting across pins and the insulation creeping back from too much heat exposing excess copper.

The idea was just a quick, easy way of linking across all 4 pins of the speakon without the mess and hassle.

The APEM connectors are rated at 24A, and they are the clamp up type, so the U clamp is pulled up to tightly clamp the wire in a similar fashion to many mains connections. This connector was selected as it has proven to be reliable. There is also a notch on the PCB so you can attach a cable tie for strain relief.

The screw terminals are optional - if you dont used the terminals, there are 4 large solder pads that will accept 2.5mm wire (possibly just 4mm if you're clever) and you can just solder on the wires you need. I agree, unless you are changing regularly you dont need screw terminals - this is why these are also available as separate parts and you can just make them without screw terminals if you want. 

Let's suppose you have a sub on pins 1+/1- and you want pass through on pins 2+/2- you can solder 2 speakons on to the board to make your links, and then just solder 2 wires in for pins 1+/1- to go to your bass driver.

It makes the soldering much, much easier, and gets the whole job done quicker.  If you're a pro solderer, this may not benefit you much - it's aimed more at the amateur who has trouble with soldering speakons and wants an easy option.

If I was knocking our a production run of say 20 boxes, I would also welcome being able to get the tedious task of soldering speakon dishes done quickly without losing too much time on it. Time = Money

I estimate you could solder the speakons on in about 30 seconds once you have a hot iron - you'll probably spend longer waiting for the iron to heat up.

These only arrived Friday - we'll get some soldering speed tests done and see how quick they can be assembled.

just a guy with a warehouse and a few speakers... www.bluearan.co.uk
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cravings Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2017 at 10:23am
how much power would you draw through the circuit board?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Andy Kos Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2017 at 10:27am
We calculated the tracks can safely take 25A - we used a standard online calculator which takes into consideration copper CSA and surface area. Where the tracks are wide (12mm) the surface area is large which keeps temperature rise down.

The tracks are only 55mm long, and at 12mm wide, probably wider than the tracks on many amplifier PCBs.

Calculated resistance pin to pin through the copper is 0.001 ohms, and at full 25A,  power dissipation through the tracks would max out at a whopping 0.5W.




Edited by Andy Kos - 10 January 2017 at 10:28am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jacethebase Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2017 at 10:50am
Time wise realistically to terminate 2 x speakons in to a cab linked with all 4 pins heatshrinked done in a way its going to be the same in 10 years is easily 15-20 mins. By the time you have prepped the cable Tinned it, cut heat shrink to fit etc.

So if speed is what your after these would be great. But in terms of Longevity soldering is key.

Also as Andy says if your a Billy Crack hands with a soldering iron these would suit ;)
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