K3 speaker reflector

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K3 speaker reflector

Mike Maloney
We were at the plumbing supply today and picked up a 2 inch PVC 90 degree elbow
coupler. 

A disc was cut from some no skid shelf liner.  This and the PVC elbow was placed
over the top
speaker, thus deflecting the sound toward the operators ears.   The result was a
noticable improvement
in the sound output detected.   Next is to spray the coupler Rust-oleum
Semi-flat Black enamel to more
match the K3.  May even detail more with a grill cloth later.   Nice simple
sound improvement out of the stock speaker.
73, Mike, AC5P
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Re: K3 speaker reflector

Don Wilhelm-4
  Mike,

That is creative and very nice, but a pair of high efficiency
(unamplified) speakers will beat that "all hollow" while allowing the
use of AFX.  I use a pair of old RS Optimus speakers that I picked up at
a thrift shop for a bargain - they make the K3 sound sweet - YMMV.  
IMHO, the internal speaker "sucks", and is to be used only when there
are no other alternatives.

73,
Don W3FPR

On 3/17/2011 10:50 PM, [hidden email] wrote:

> We were at the plumbing supply today and picked up a 2 inch PVC 90 degree elbow
> coupler.
>
> A disc was cut from some no skid shelf liner.  This and the PVC elbow was placed
> over the top
> speaker, thus deflecting the sound toward the operators ears.   The result was a
> noticable improvement
> in the sound output detected.   Next is to spray the coupler Rust-oleum
> Semi-flat Black enamel to more
> match the K3.  May even detail more with a grill cloth later.   Nice simple
> sound improvement out of the stock speaker.
> 73, Mike, AC5P
>
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Re: K3 speaker reflector

David Cutter
External speakers are better, but a simple reflector makes a big difference:
I use a small cardboard box sitting just to the rear of the loudspeaker
aperture as a reflective surface.

David
G3UNA


>  Mike,
>
> That is creative and very nice, but a pair of high efficiency
> (unamplified) speakers will beat that "all hollow" while allowing the
> use of AFX.  I use a pair of old RS Optimus speakers that I picked up at
> a thrift shop for a bargain - they make the K3 sound sweet - YMMV.
> IMHO, the internal speaker "sucks", and is to be used only when there
> are no other alternatives.
>
> 73,
> Don W3FPR
>
> On 3/17/2011 10:50 PM, [hidden email] wrote:
>> We were at the plumbing supply today and picked up a 2 inch PVC 90 degree
>> elbow
>> coupler.
>>
>> A disc was cut from some no skid shelf liner.  This and the PVC elbow was
>> placed
>> over the top
>> speaker, thus deflecting the sound toward the operators ears.   The
>> result was a
>> noticable improvement
>> in the sound output detected.   Next is to spray the coupler Rust-oleum
>> Semi-flat Black enamel to more
>> match the K3.  May even detail more with a grill cloth later.   Nice
>> simple
>> sound improvement out of the stock speaker.
>> 73, Mike, AC5P
>>

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Re: K3 speaker reflector

John Lemay
In reply to this post by Don Wilhelm-4
I'd be interested in an efficient forward facing speaker in a matching
cabinet, say, P3 size. Or just a matching cabinet; I guess many of us could
do the rest !

John G4ZTR

www.aerial-parts.co.uk


-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Don Wilhelm
Sent: 18 March 2011 03:33
To: [hidden email]
Cc: [hidden email]
Subject: Re: [Elecraft] K3 speaker reflector

  Mike,

That is creative and very nice, but a pair of high efficiency
(unamplified) speakers will beat that "all hollow" while allowing the
use of AFX.  I use a pair of old RS Optimus speakers that I picked up at
a thrift shop for a bargain - they make the K3 sound sweet - YMMV.  
IMHO, the internal speaker "sucks", and is to be used only when there
are no other alternatives.

73,
Don W3FPR

On 3/17/2011 10:50 PM, [hidden email] wrote:
> We were at the plumbing supply today and picked up a 2 inch PVC 90 degree
elbow
> coupler.
>
> A disc was cut from some no skid shelf liner.  This and the PVC elbow was
placed
> over the top
> speaker, thus deflecting the sound toward the operators ears.   The result
was a
> noticable improvement
> in the sound output detected.   Next is to spray the coupler Rust-oleum
> Semi-flat Black enamel to more
> match the K3.  May even detail more with a grill cloth later.   Nice
simple
> sound improvement out of the stock speaker.
> 73, Mike, AC5P
>
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Re: K3 speaker reflector

Shel Radin KF0UR
Same for me.  I've inquired about it with the Elecraft folks, but haven't received a reply yet.  It would make a nice addition.