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In the Forum: Horn-Loaded Speakers
In the Thread: Good midbass is complicated, if not unobtainable.
Post Subject: Organizing Bass PlaybackPosted by skushino on: 9/27/2013
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I'm also of the opinion that the bass is one of the most critical and most challenging parts of playback. Not talking about quantity, but rather the quality of bass reproduction. My approach has been to split the bass in two parts - Low and mid bass covered by Danley's SPUD tapped horn (< 90 Hz), and upper bass / lower mid served by a 140 Hz tractrix horn (between 100 Hz - 800 Hz). This approach is satisfactory, but I believe there's room for improvement by adding a dedicated mid bass channel to cover ~ 50 Hz - 250 Hz.

I'm finally starting on a pair of mid bass horns. Why tackle the effort of building a huge pair of horns rather than a different solution? I chose horn loading to match the sensitivity of the other channels. But most significantly, bass reproduced by an 'adequately large' horn is unique compared to other solutions. Listen to cellos, standup bass, tenor / barry sax, or piano on a big horn like Tannoy Autographs or Klipschorns horns and you might agree. One of many challenges is making a horn work in an average-sized residential listening room. A straight horn is not an option due to size considerations (short of heroic built-in solutions like Romy's). BLHs can sound fine but have freq response irregularities. I've decided to build a folded horn based on the University Dean. The drivers are C-15W dual-impedance woofers with huge alnico motors and paper cones. I hope to have them finished in time for the holidays.

 

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