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Quentin Jarrell

complete list of drivers currently being worked on

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I am going to try to put together the drivers I am working on here in this one topic. I'll try to give all the info that I have available including expected t/s parameters, price, ETA, ect.

This first one could cater to the SQ crowd. It's designed to work in pretty small sealed and ported enclosures. It will be available in 10, 12, and 15 inch models. Below is the expected 12 inch parameters.

Projected specs. 12'' sub

Re 2.06 (series)

Fo 32.82

Qts .4686

Qes .5022

Qms 7 (estimated)

Vas 23.01 liters

BL 17.19 T/M

xmax 22.5mm one way @ 82% BL or ~27.5mm @ 70% BL

Rms 10.29

Mms 346.1g

spl 89.8 @2.83 volts

750 watts rms

COIL

8 layer flat copper

ID 76.657mm

OD 85.83mm

20 gauge copper

30mm winding hgt

213.9 turns

AND A RECOMMENDED PORTED ENCLOSURE

1.5 cubic feet

Fb 29.6 hertz

F3 26 hertz

Pemax 1072 watts

ripple 0 DB

CUT VIEW OF MOTOR

This is a MMAG so you can see the two top plates. The silver are Faraday rings. As you can see the coil will be engulfed throughout its entire stroke.

MMAG220-225cutview.jpg

I have samples coming with the Ethos order in March. As long as everything comes as expected I will have a production order on this model for July. It should fall around the $350 price range. The faraday rings add about 40% to the manufacturing costs of the driver.

2ND MMAG DRIVER

This is a very very stout 270mm (11 inch) OD motor. It,ll offer a daily or SPL option. I also have a sample of this motor coming with the Ethos production.

mmagpic.png

Edited by Quentin Jarrell

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cool stuff brah!

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This is the final sample I have coming with the Ethos production order. It uses a 3 inch 100mm long 8 layer flat aluminum coil with an Re of 1.75 ohms. That gives this motor a BL of 34.8 and a motor force factor of ~692. To their knowledge this is the largest 3 inch coil that precission has ever made. the motor uses two 270mm OD x 25mm thick magnets and a 50mm thick top plate and bottom plate.

270mmmotor.jpg

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update sir?

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All these samples will be in shortly. They are being machined as of last week.

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Update?

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oh so now you're doing marine audio?  lol

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They should be on the boat on the 30th

Any progress on those shallow mounts ?

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The designing on them have been completed. The samples for them will come with my next production order.

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I can't wait.. 

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when is that?!!!!

As soon as you buy up all my Ethos wooferlers

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