Sold Prototype sale

[Electrodynamic 10+ year member]

Ok guys, it's time to clear out a few prototypes. First, these are fully working prototypes that have had nothing but slight listening and break-in testing. I didn't go with these drivers for various reasons, but they are still very nice drivers.

First up is the prototype 12" BM. Dual 4 Ohm coils, 6" mounting depth, paper pulp cone, foam surround, copper2.5" voice coil, it will work in 1.3 cubes sealed and 2 cubes ported to 34 Hz. and here are the rest of the parameters:

Coils in series.

Fs = 23 Hz

Qms = 7.8

Qes = .388

Qts = .37

Vas = 93.79 liters

Cms = 0.26 mm/N

Re = 7.29 ohms

BL = 21.9 N/A

Sd = 500 cm^2

Mms = 175 g

Le = 6.83 mH

SPL = 86.9 dB/1w/1m

SOLD!

Next up is a 15" Mag prototype. This driver features a paper pulp cone, foam surround, dual 2 Ohm voice coils, 3" voice coil, woven-on tinsel leads. Here are the parameters:

BL = 21 TM

Le = 4.6 mH

Cms = 93.9 uM/N

Fs = 29 Hz

Qms = 4.78

Qes = .43

Qts = .40

Mms = 228 g

Sd = 0.0855 sqM

SPL = 89.5 dB

SOLD!

You can email me (the best way) at nick@stereointegrity.com or PM me here on the forum.

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[Electrodynamic 10+ year member]

Jake, I was wondering about the 10" model. I think I might list that little guy too...man does that 10" BM proto sound sweet.

Anyway, the Mag 15 proto listed will handle 1000 watts all day long. It, along with the BM listed, is the only one I have.

The triple stacked 12" proto didn't stack up at all so I blew it up. I think it might have been sent back. It's not for sale though. I wouldn't even let that thing go for sale as a prototype it was so bad (by my standards).

 

[SPY 5,000+ posts]

If you decide to sell the 10 let me know, I'd be very interested.

 

[JL Audio 5,000+ posts]

shipped price on the 15" mag proto to 40962. Thanks.

 

[bigbirney420 10+ year member]

what can the BM handle daily, specs similar to the old one? It might not be enough for Sundown 1500 @ 2 ohms unless gain is all the way down

 

[Electrodynamic 10+ year member]

what can the BM handle daily, specs similar to the old one? It might not be enough for Sundown 1500 @ 2 ohms unless gain is all the way down

The BM can take around 500 watts daily.

 

[Electrodynamic 10+ year member]

So far the BM is sold and the Mag is pending payment.

*Edit* Both drivers are sold!