Si Bm 10s (re-coned With New Parts)

[sundownz]

I bought out all of the QC failed 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

I have about 40 of these...

$125 shipped in the continental USA for one

$240 shipped in the continental USA for two

$440 shipped in the continental USA for four

Ask about more than that!

These are blow-out items and sold with no warranty beyond a no DOA guarantee. I can built re-cones for them for a while as I did get about 25 sets of extra parts! They are pretty tough with a 2.5" diameter flat coil, though

Nice sounding drivers.

[Loudcav]

too baqd I couldnt get one to work with my SAX-100.4 bridged on the rear channels

[sundownz]

Still have plenty to go around.

These were $240 drivers when they were current models being sold by SI

[Torres]

that's a hell of a deal! i like the huge dust cap on them

[sundownz]

that's a hell of a deal! i like the huge dust cap on them

It is a blank Nightshade dust cap

[Torres]

ah nice! makes em look a lil beefier imo

[sundownz]

SOLD OUT.