GoodSoundClub - Romy the Cat's Audio Site

In the Forum: Horn-Loaded Speakers
In the Thread: Problems with horns: upper bass

Post Subject: On Objective Of Mid/Upper Bass HornPosted by Dresden on: 11/12/2008

I concur the objective to acquire performance in the desired frequency range must predominate most other considerations of design.

My objective for the design of the mid/upper bass horn is to attain effortless, smooth, real-world horn-loaded response in the desired target range (40 Hz to 400 Hz). In a more practical approach, I would be satisfied with attaining accurate, smooth, full-bodied sound even in a limited range of 90 Hz to 400 Hz. (By accurate I mean linear [or as physically possible, near flat] response in the target range [-+3dB].) I don't like the idea of trying to convince myself that the lower frequencies of the target range are being reproduced in a proficient manner, though it is almost indiscernible when compared to the upper target range. (As an example, if the frequency reproduction in the target range vary by -+7dB, or worse, -+10dB in the constructed horn, the design was not effective and should be modified to correct this flaw. [Unfortunately, I see most people opt to 'correct' the response by implementing a curve via an electronic eq. I believe that approach is terribly flawed, given that the design of the horn itself has not been corrected. I believe if the design of the horn proves to be poorly implemented, the design--and hence, the horn--should be modified to achieve the target range acoustically.])

I'll consider your advice of subjective listening on the actual results of a horn when I make time to construct the prototype horn(s). Presently, my time is consumed by a few legal responsibilities, but I project beginning construction in late January or February 2009. Should I miraculously achieve desired results (after the due construction and modification Sleep

), I'll be sure to post it on your web site. Thank you for your sharing your valuable real-world experiences on how to approach horn design.

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