Here are some of the driver specs.
Shiva features:
- 650W power rating
- Dual 8 ohm voice coils, parameters in parallel
- 15.4mm linear magnetic excursion, one way (over 1.2" peak to peak, linear!)
- 22.3mm linear suspension travel, one way (over 1.75" peak to peak)
- 26mm maximum one-way excursion (over 2" peak to peak)
- Recommended enclosures start at 26 liters - less than 1 cubic foot
- Suited for sealed, vented, bandpass, and PR based systems
Re: 2.9 Ohms
Z: 4 Ohms
Le: 2.12 mH
Fs: 21 Hz
Qms: 6.50
Qes: 0.40
Qts: 0.38
Vas: 151 L
Sd: 481 sq. cm
Xmax: 16.6 mm
Pmax: 650 W
SPL: 87.3 1W, 1m
I have a PDF file from Adire Audio that has different enclosure designs specifically for the Shiva. The PDF has three different designs and the frequency responses of each. It is too big for me to post here, but if anyone wants it I can email it to you.