[Elecraft] Elecraft SP3 External Speaker: built-in power supply?

Wayne Burdick n6kr at elecraft.com
Sat Sep 12 13:45:43 EDT 2015


"Fred Townsend" <fptownsend at earthlink.net> wrote:

> Will the speaker housing have a place to slide the Powerwerx supply into the back?

Hi Fred,

The SP3 has a lot of room inside and is very solidly constructed, so it's a great platform for a DIY add-in like a power supply. You would only have to modify one piece of sheet metal -- the bottom cover -- since that is also the mounting point for the A/B switch in front and jacks in back. 

Available interior space is approximately 3.3"H x 5.9"W x 7.3"D. Audio jacks are arranged vertically along one edge of the rear panel, leaving several inches of space for additional connectors, possibly even a small fan.

Of course you'd have to remove some of the acoustic baffle material, altering the AF response curve in an unpredictable manner. Just thinking out loud, here, but I wouldn't use it as a hiding place for your collection of rare idiophones. 

73,
Wayne
N6KR








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