Elecraft SP3 External Speaker details

[William Lagerberg]

Hi all,

I like the Speaker its looks far better then the SP8 from Yaesu i am using now….., it’s for what it is a little bit expensive including tax and transport to get it to holland, it will be i think around 260 dollars, but i assume the quality wil make that right. And when the USB interface for the K3 is available it’s two for one freight costs.

But my comments:

First I would have liked a 3,5 mm headphone plug at the front. Some body mentioned it and it is really a good idea.  

Next i have seen on question about room in the case for a power supply, i do really like to investigate if it is possible to put a 25 / 30A power supply into that empty housing. Perhaps even the one that Elecraft comments and sells on it’s site SS30DV.


Is it possible somebody send a picture of the unit open.. perhaps the guys at Elecraft…



------------------------------------------------------------------------------------------------------------------
Pe1bsb
William lagerberg

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[Eric Swartz - WA6HHQ]

Hi William,

The enclosure was designed as an integral part of the acoustic system to generate a desired SP3 response. Placing additional items inside the case will distort this response.

Also, The case is totally filled with speaker 'filler' material to properly acoustic load the driver. This will negatively impact P.S. cooling. Also there is no venting in the box for heat removal.

73,

Eric
elecraft.com
_..._

> On Sep 15, 2015, at 9:39 AM, William Lagerberg PE1BSB <[hidden email]> wrote:
>
> Hi all,
>
> I like the Speaker its looks far better then the SP8 from Yaesu i am using now….., it’s for what it is a little bit expensive including tax and transport to get it to holland, it will be i think around 260 dollars, but i assume the quality wil make that right. And when the USB interface for the K3 is available it’s two for one freight costs.
>
> But my comments:
>
> First I would have liked a 3,5 mm headphone plug at the front. Some body mentioned it and it is really a good idea.  
>
> Next i have seen on question about room in the case for a power supply, i do really like to investigate if it is possible to put a 25 / 30A power supply into that empty housing. Perhaps even the one that Elecraft comments and sells on it’s site SS30DV.
>
> Is it possible somebody send a picture of the unit open.. perhaps the guys at Elecraft…
> -----------------------------------------------------------------------------------------------------------------
> Pe1bsb
> William lagerberg
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

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[Bill-3]

I bite my tongue on this, but I wanted a matching speaker for my K3-Line
back when I first go it. So - to my shop I went. The box was a size
match for the P3 with a PHONE plug installed. I used 1/8 and 1/4
plywoods for some of it and 1" pine for the bottom. I installed a Bose
speaker found on eBay (very heavy magnet). The box was not filled with
any deadening material, as it was constructed of wood. The back was
sealed - with a single 1" hole on the rear.  Carefully finished (lots of
hand sanding, filling, and several coats of black stain and flat
varnish) and carefully labeled, the design looked perfect on the desk
with the K3-Line. Performance was great - best sounding external speaker
I ever used. Didn't cost much either - but, many many hours invested in
building it. Kind of makes the new speaker from Elecraft look much
better than building one.

Do I use my speaker now? No. I gave it away and now use Behringer MS40
powered speakers. No design match, much bigger and heavier, two stereo
inputs, built-in equalizer, and better sounding. Cost is comparable with
the new Elecraft speaker. AFX rag chew sounds super on them.

It is all about choices.
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