Posted in the wrong section man... oh well... I pulled this off another forum
For the Lanzar DC12, Bass Box Pro recommends 1.61 cubic foot "net" sealed for the magical .707 Qtc and will give you a predicted F3 response of 56.48 Hz. Remember your subwoofer displaces .141 cubic feet of enclosure volume so you would have to build it approximately 1.8 cubic feet gross.
For the high output sealed option, Bass Box Pro recommends .783 cubic feet net sealed with a predicted F3 of 62.56 Hz.
For high output ported, it recommends 1.941 cubic feet net tuned to 43.23 Hz with a predicted F3 of 41.45 Hz. You don't want to know how big a high fidelity ported enclosure should be unless you have 7 cubic feet to spare.
Edit - Here are the TS parameters listed in the database:
Company: Lanzar Audio Inc.
Model: DC12
Available = No
Last update: 11-Feb-2001
Type: Standard one-way driver
Comment: DC series
Shape: Round
Piston Type: Cone
Piston: Kevlar, carbon & woven wood fiber cone.
Suspension: Multi-layer foam surround. Dual spider.
Dust cap: Paper dome.
Frame: Diecast alloy basket.
Voice Coil: 2.5 inch diameter. Kapton polyamid former.
Terminals: Spring loaded terminals.
Fs = 33.4 Hz
Qms = 5.25
Vas = 3.57 cu.ft
Xmax = 0.276 in
Qes = 0.62
Re = 3.4 ohms
Z = 4 ohms
Pe = 500 watts
Qts = 0.555
1-W SPL = 89.9 dB
MIGHT be what you're looking for... I'm not sure... "Characteristics" huh?
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