GoodSoundClub - Romy the Cat's Audio Site

In the Forum: Horn-Loaded Speakers
In the Thread: Midbass Horns and Real Estate.

Post Subject: CH Audio DesignPosted by skushino on: 8/29/2009

From a company called CH Audio Design in Florida:

http://chaudioroom.com/Sculpture.html

CH Audio Design Sculptures Loudspeakers, with Altec 288 high frequency and 515 low frequency drivers.
A fully horn loaded two way system.

Using the ceiling and adjacent walls as extensions of the horn together with an anti-resonant all cork padded chamber,
and special calculated shaped conical horn we achieved a very low frequency response in a relatively small enclosure,
Same experience with the high frequency multicellulars " hear things that were not there before"! in the bass region !

Main body

Astraight horn with compounded smooth curves and no bends, parallel walls, or flat surfaces that causes reflexions and resonance. Carefully handcrafted to the smallest detail, cork covered inside, suppressing resonance, clearly seen through the opening of the 515 driver. Also shown the mounting fixture for the 288 Driver / CH1505BW wood horns. .

My comments:
Focus on the bass horn concept. Ignore the multi-cell and the fact the bass horn is rear-loaded. Ignore the company's claim of using the ceiling and adjacent walls as extensions of the horn flare.

Considered as a solution for fitting a large bass horn in a normal-size living space, this approach has some benefits - extremely small footprint, adequate length to support true mid-bass, 'near' time-alignment if located directly behind the MF and HF horn. The mouth exhausts near the ceiling resulting in good coupling if your ceilings are the appropriate height. I would locate the driver inside the horn at the bottom pointing upwards, with a backchamber on the very bottom of the structure. Something like this might be a solution for covering ~60 - 300 Hz.

How would it sound? I wonder if pointing straight up towards the ceiling would obfuscate spatial information if used up to 300 Hz, spreading the output all around the ceiling. I wonder if listening to this would feel like you are seated in the basement, with the sound appearing to come from up above. Maybe a 90 degree bend on top of the horn would compensate for this.

But so far this is one of the most elgant and aesthetic solutions I have seen for a long bass horn in a home.

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