[Boatanchors] Audio Quality Comparison

[Al Klase]

Bob,

The radios are quite similar. The design goes back to the HQ-120. I 
doubt you'll hear any significant differences in audio.

That said, the grid coupling caps on the first and second audio amps are 
sized for "communications quality" audio, that is response rolls off 
below 200 Hz. If you're looking for "hi-fi" audio increase these caps by 
a factor of ten. Lack of iron in the output transformer may be a 
limiting factor for really deep bass.

Al

On 2/3/2014 2:54 PM, Bob Jackson wrote:
> Looking to an un-scientific opinion/comparison of the audio quality between an HQ-140, a -150 and a -160. Thanks.
>
>
> Bob  AG5X
> Whitehouse, TX
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-- 
Al Klase – N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/