if i wanted to run 8 of these subs ( SI BM 10s (old models) and re-built them with several changes:
1) Slightly longer flat-wound coil (original was round wire) - USA made coils
2) Narrower / Taller Surround
3) Tied down tinsel leads
Measured T/S Specs (coils in series):
RE: 6.89 ohms
Z: 8 ohms
Fs: 27.2 Hz
Qes: 0.56
Qms: 3.32
Qts: 0.48
Le: 2.8 mH
Vas: 31.1 L
BL: 16.2 NA
Mms: 124 grams
Power: 400 watts RMS
0.95 ft^3 SEALED BOX - F3 of 41 Hz
1.5 ft^3 ported tuned to 30 - 35 Hz for high output )
on a sundown 3000d final ohm load would be 1. how small can i make the box i want a small ported box maybe 7 cu ft ported at 35 if you could i would really like some help with the box thank you box for back of 95 explorer. also do you think they would sound better than my 2 15" dc level 4s
