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Sonic Electronix

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Posted

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

Posted

if you wanna use the recommended box size for these, and you want to have it ported than you will need to have a bigger box than 7 cu ft... 8x1.5=12

idk if im right or wrong but thats what im saying.

Posted

Could go small if you made a huge port like what you see in T-Line setups... and flare the end like a horn ;)

MickyMcD - "Capable of making some serious trouser flapping volumes at where's-my-testicles frequencies, the Servo-Drives used to be fairly jaw dropping..."

Any time you have have a power wire next to your frame put some rubber hosing (or cut up an innertube) around it. The wire is bound to wiggle (due to driving or flex) and the casing will eventually wear through.

Hammerdown... 1%

no links to outside websites, business related FB/YT pages allowed.

Posted
i thought the smaller the better power handleing

to an extent. you just cant make the box as small as you can or want. the subs still need air to breathe

 

 

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