[Elecraft] Elecraft SP3 External Speaker details

[Eric Swartz - WA6HHQ, Elecraft]

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 <pe1bsb at zendamateur.nl> 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
> 
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