eight π

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Posted by Wayne Parham [ 66.137.59.19 ] on April 12, 2004 at 02:04:38:

In Reply to: Midrange Horn posted by Wayne Parham on April 12, 2004 at 02:00:52:

eight π Loudspeaker

An interesting application of this midrange horn is to make a mini-VOTT, which I'm calling the eight π loudspeaker. Since the rear chamber is made arbitrarily large, it occured to me that it could be ported, made 5.5ft3 or so and house an Alpha 10.

Conceptualized eight π Loudspeaker

It's intended to be used in corners, but can just as well be put against a single wall. Placement isn't quite as critical as a cornerhorn because it isn't a cornerhorn. The tweeter would be a PSD2002 on a 1kHz horn, and it would be mounted with the mouth edge flush with the midhorn. If you have the means, the wood horn is nice but on a budget, the H290 would work perfectly and could be housed in a nice small subenclosure that would look really nice. There's lots of ways to make this work well and look good too.

I haven't done any testing of this yet, but I did bolt the midhorns up to a pair of tower two π speakers. It was really impressive. The bass is incredible, and the midrange is nice too.

I like the midrange from the Alpha 10's in the two π, but their weakness is in the 2kHz to 4kHz overtone region. The coil in the two π's reduces some of the Alpha 10's harshness there, but the eight π configuration really makes 'em sing. It's amazing what this little forty dollar midwoofer will do.

I'm really excited about this new little speaker. It isn't intended to outperform the higher-priced cornerhorns or anything like that, but it does have a place in the lineup somewhere near the Thermionic and Theater Series cornerhorns. It should be a good performer with classic looks. The cabinetmakers can have a field day with two-tone and forties style finishes.


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