[Premium-Rx] The "Sound" Of Receiver IF Amplifiers

[Bob Milne]

Hi Gary,

I'm somewhat surprised to hear this. Although I've never had a chance
to play with a TR7, I was always under the impression (maybe
mistakenly) that the R7/R7A was based on the receive portion of the
TR7 (same IF filters, ec.). Maybe someone on the list can clear that
up? 

And the R7A sure sounds good to me. The best way to describe it is
that the IF section/filters sound "tight." In other words, what you
hear is basically an audio spectrum totally governed by the bandwith
of the filters--even when there's just noise present. No
high-frequency hiss, etc. On SSB it just sounds like it's just passing
the audio frequencies required for clear, intelligent speech
recognition---and nothing else whatsoever. And the passband tuning
lets you shape that spectrum to exactly suit your ears, the
characteristics of the particular voice you're listening to, and the
band conditions. that's a combination that's hard to beat.

I haven't dug into the R8 circuitry yet to connect the SE-3, but I
have a feeling it's going to perform very similiar to the R7A.

Regards....
....Bob

On Tue, 07 Oct 2003 07:48:06 -0500, you wrote:

>I too have noticed that many otherwise excellent receivers have really 
>annoying received audio quality. The most notable of these (for me) is 
>the Drake TR7. 
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