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In Reply to: RE: Front horns: FR cone vs. comp driver posted by Don Reid on June 02, 2020 at 08:26:49
Dan, if I recall correctly you have been using this system for quite a long time. That says something.
Do you hear any horn coloration with the Aer drivers? I definitely hear some cupped hands type coloration with my new Oris 150 horns and Fostex drivers. It's most notable, of course, on vocals.
I owned Aer drivers in some back horns - lamhorns - long ago, they were very good in that set up.
I agree with you that stock klipschhorns sound quite terrible.
Follow Ups:
The selection of diffuser and probably horn type plays a role in that cupped hands effect you are hearing from the Oris Horns. My Lowthers were mounted in conical horns and employed large mushroom shaped diffusers, like those used with the Beauhorn Virtuoso speakers. This improves the power response in the higher frequencies, and I suspect that it is the beaming in the higher frequencies which leads to that cupped hands effect.
The directivity of the high frequencies is determined by the throat of the horn, while the directivity of midrange is determined further down the horn towards the horn mouth. This is why a conical horn can provide better power response than the narrow throat Oris horns.
Retsel
A couple things:
- I discovered that tonality is more natural (LESS "cupped hands" sound) with the xover *lower* - I moved it from 380 to 250 (24 dB/octave) and it got better.
- I just snagged a pr of AER BD1s. I'll order the BD phase plugs for them too.
Hi Paul,
I noticed you have listed the AER drivers for sale on audiogon.
Would like to ask if they were not to your liking in the Oris horn, and which direction you ended up heading in.
Also, was this the pair from audiomart which shipped from MD, USA?.
Cheers,
Shane.
I don't know what the BD1 phase plugs are. For front horns (i.e., tractrix), Lowther users (and maybe Lowther too) recommends light bulb diffusers. I don't have a pair of these, but I intend on purchasing a pair before too long. I think that the large mushroom diffusers work for conical horns, although I will try both of these diffuser types to see which works better for me.
Retsel
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