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Re: Topband: Tuned speaker revisited

To: n4is@comcast.net, jim@audiosystemsgroup.com, topband@contesting.com
Subject: Re: Topband: Tuned speaker revisited
From: Rick Kunath via Topband <topband@contesting.com>
Reply-to: Rick Kunath <k9ao@yahoo.com>
Date: Tue, 10 Feb 2026 15:08:59 -0500
List-post: <mailto:topband@contesting.com>
Does anyone know if any of the tuned CW speakers are still commercially available?

I remember years ago seeing ads for these in the various ham magazines, but I haven't seen anything lately.

I am assuming that there is something superior (lack of phase shift over the passband or something) with the tuned audio approach over the other technique that was around back then like the Autek QF1 for less ringing?

My senior ears are interested ;)

Rick Kunath, K9AO

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