[Derockster]

Hi All, can I use Eminence Alpha 15 in my H Frames?


Regards


Cleaton

[SteveRB]

yes.

they will likely need their own amp.

[Derockster]

Can you give me dimensions for the H frame?

Cleaton

[scorpion]

Given this link: http://hi-fiworld.co.uk/index.php/loudspeakers/68-technology/138-open-baffle-loudspeaker-design-part-16.html I would recommend another speaker. Dimensions for a 15" I suppose could be 16 x 16 x 16 inches inner measure including or excluding baffle width. H-frames will be markedly less sensitive opposed to a flat baffle but in less need of EQ. What's the H complementing ?

/Erling

[MJK]

Hi All, can I use Eminence Alpha 15 in my H Frames?

Yes definitely. You can find the results of a trade-off study at the following link.

http://www.quarter-wave.com/OBs/U_and_H_Frames.pdf

Martin

[Poultrygeist]

16 inches is cutting it very close. Going with 17 inches for the internal dimensions barely gives you an inch of clearance between the Alpha's edge and the sides.

[Derockster]

Hi everyone, thanks very much for your responses. Earling the H's will be complimenting my Acoustat panels. Would you recommend a flat baffle as opposed to H frames?

Regards

Cleaton

[scorpion]

Cleaton, H-frames will be an excellent choice. Built the MJK-way and crossed 2nd order they will, as you learn on Martin's web, also be perfectly equalised for flat performance.
Just to choose crossover- frequency to mix with the other speaker. However  I would suggest that Beta15 might be better sonically than the Alpha15. The 1 watt sensitivity will be 86 dB for a Beta unit in the proposed H-frame and the bass wll go down to about 30 Hz no doubt.

/Erling

[Derockster]

Hi guys just thought I'd share a picture of the system which the H frames will be used in.