Posted by Wayne Parham [ 64.149.54.113 ] on September 14, 2008 at 03:12:38:
In Reply to: 7 Pi woofers posted by jimbop on September 13, 2008 at 23:44:41:
The Altec 515G (8G, 16G) works well in the four π or seven π cabinets. Response is just what you want for home hifi, slightly overdamped, much like the curve that results from a JBL 2226.
The 515G is suitable for use in vented cabinets from 2.0ft3 to 5.0ft3 tuned to 40Hz to 50Hz. The lower tuning makes the cabinet slightly overdamped. A slightly higher tuning is best if the cabinet is used outdoors or in large spaces.
Note that not all 515 drivers have similar electro-mechanical specs. The 515B and 515C, for example, work best in larger boxes up to 15ft3.
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