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Re-Coned SI BM 10s Blowout - $60 + Shipping Each


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$60 + shipping each regardless of quantity

Need to make room in the warehouse so price is 1/2 what I was originally asking.

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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

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I have about 40 of these...

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.

- Jacob Fuller

- Owner, Sundown Audio

- Sundown Audio on FACEBOOK

- Please DO NOT PM ME -- use my email address -- [email protected]

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does the "z-8ohms" mean these are 8 ohm woofers? if not what impedance will they go to?

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Measured T/S Specs (coils in series):

Z: 8 ohms

so they are D4

Edited by Stephen
you can cook bacon shirtless if you're not a pussy...lol

not hatin, but am i wrong here it looks as if the amp is not grounded its hooked directly to the battery. it that the way it should be.

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DC.jpgDC POWER

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damn i might have to see about a pair of these.

might try them out sealed on about 500rms a piece.

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