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Re: Oris 150 - Woofing the Edgarhorns

Posted by freddyi on January 20, 2001 at 15:17:56

In Reply to: Re: Oris 150 posted by Hermit on January 20, 2001 at 14:53:57:

John -

I can't drive anymore - too much problem with my balance- can hardly walk at times - the 40Hz 1/8 size Monolith would need some eq on the bottom - its up against the ususal limitations of a finite/truncated horn - is Bruce offering a larger horn?

You could build two Monolith cheaply from the plans in Speaker Builder (I could scan and email these) and try to keep them near corners and use cheap sub-woofer amps with a boost in the 35-50hz region - I'm not sure how a bank of reflex might work - I think you could use perhaps 2-4 pro 15 inch per side to augment the 100Hz horns - ask Mike Bates. I'm playing with a Peavey 1505 15" woofer - seems prety good but I've not tried to integrate it with a mid-bass horn.

I assume your 100Hz horns with EV15L are hyperbolic? - sensitiviy must be around 106-108dB - do you biamp to the D54 and tweeter? Also - I think hte 15L would have to be 'cleaner' than my 2220H - that has a 'cone cry' around 1khz. I've not listened to my system for a while but did run the whole mess on a parallel SE2A3 amp I built - not bad --my converted push-pull parallel 6BX7 Eico ST-70 has more 'punch'

I considered a straight 70Hz hyperbolic horn for the EV15L -only problem is the 4 foot depth and that's ok here. I designed and built a 55Hz folded horn using a 15L but am not satisfied. Cabinet is too resonant and throat could have been executed better - straight horns avoid these problems (if done right)

Before I leave - what is a B&C D32 tweeter?

best wishes

Freddy

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