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Old January 30th 12, 11:29 PM posted to rec.radio.amateur.boatanchors
Cadiscase Cadiscase is offline
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First recorded activity by RadioBanter: Oct 2011
Posts: 6
Default Speaker and DSP for boatanchor receivers

On Jan 30, 12:53*pm, Tim Wescott wrote:
On Sun, 29 Jan 2012 14:48:54 -0800, Cadiscase wrote:
If I wanted to buy a NEW 3.2 ohm speaker to use with a Hammarlund radio
is there one that anyone would recommended for listening to AM
broadcasts? Is there any recommended size speaker such as 6 inch or 8
inch, etc? Is there any loss in audio quality using a 4 ohm speaker? How
would two 8 ohm speaker in parallel work?


I suspect that a 4-ohm speaker, or two 8-ohm speakers in parallel, will
sound just fine.

Is anyone using a DSP unit with their boatanchor which they would
recommend? Most [All ?] DSP units distort the audio so there is probably
always some distortion, but some DSP units would be better than others.
I am thinking in term of AM signals broadcast band reception.


I have followed the price of the Hammarlund speakers on ebay and they
are a bit expensive. I assume they would be best, but a bit rich for me..


I don't know what you want the DSP unit to do, or what you're calling
"distortion", but just about any post-audio filtering unit is going to
work by "distorting" the signal -- the question isn't "does it distort?",
but "does it improve other things enough to make the distortion
worthwhile?".

Beyond that -- I dunno, I really got on to answer your speaker question.

--
My liberal friends think I'm a conservative kook.
My conservative friends think I'm a liberal kook.
Why am I not happy that they have found common ground?

Tim Wescott, Communications, Control, Circuits & Softwarehttp://www.wescottdesign.com


The noise I [most] want to eliminate is the HISS when you receive a
weaker signal.
The hetrodyne can also be a problem, but the slot can do some good,.
I got the Hammarlund because I wanted the full quality sound on AM.
I will have to except some distortion when I use a DSP unit.
The CLRSpkr DSP is a reasonable unit to use I think.
I would like to eliminate or decrease the fading effect by a better
AVC.
Well I cant have everything with a Hammarlund.Thanks to ALL for their
responses.
PS:: Is there a Service Bulletin to the HQ-145X ?