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Already years Iam looking what is the right inductor value for two Alphas, but no get this info. The woofer has a high Q ts and works very well with open baffle speaker designs. Logged matevana Full Member Posts: Eminence AlphaA – 15″ Woofer. The Eminence AlphaA woofer driver comes neatly packaged in a split moulded styrofoam shell and snuggly inside a sturdy cardboard box. Note that because of the high Q ts , the AlphaA woofer can also work well with an open baffle speaker system.

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If you rminence generate an impulse response then you can find the delay of the impulse from each driver to the microphone, and figure out the difference.

The Eminence AlphaA woofer driver utilizes a black paper cone and a solid composition paper dust cap. Since you’re talking about modifying, then with the round frames of all drivers in yours, have you considered flush mounting them? The woofer has a high Q ts and works very well with open baffle speaker designs.

Logged Rudolf Full Member Posts: Rudolf Full Member Posts: The 15″ woofer is built around a black pressed steel basket. I’m thinking i may try a H-frame on the two 15s in the next couple weeks. I am running these with my old Eico HF The overall build quality of the AlphaA woofer drivers appears to be very good.


I apologize my late reply, I missing it for some reason, I ashamed for it, sorry. A simple, but elegant set-up. That would keep the front nice and clean. The Eminence AlphaA woofer has a small motor and a high Q ts which makes the driver well suited for use with open baffle speaker systems. The AlphaA voice coil diameter is 38 mm 1.

Eminence ALPHAA – 15″ Woofer

This is particularly effective when the HF source is directional, as widebanders are. The relative 2-dimentionalness of them keeps them ‘small’ in the room. Visaton B and 2x Eminence Alpha 15A. The official Eminence AlphaA datasheet is in the links below.

Eminence Alpha-15A 15″ Driver

I wonder what is the inductor value you are using in this set-up?? The Eminence AlphaA is a mm 15″ diameter paper cone woofer.

Kind of hard to drive but – a wee Virtue Aplha-15a 2. Let us know how you proceed and what your results are! That would make the front appear even cleaner to my eyes and help acoustically. The pair of Eminence AlphaA woofers were well matched to each other. Mono records sound amazing and wide when the baffles are square to alpha-155a room. On the streets pets live only two years average.


I plan 1 use at least a three ply 1″ material for rigidity, mass, and to separate the mounting of the Visaton from the Alphas.

Cool setup you have there.

This style of speaker suspension can have a very long service life. Created 27 February Guy 13 Logged aquapiranha Jr.

The woofer is an easy to drive 8 ohm load and will deliver tight bass provided the small motor is not over powered. It depends alpja-15a the crossover frequency between the two drivers.

An Eminence AlphaA sticker covers the small rear motor structure of the woofer which features a vented pole piece. Then you can calculate the distance.