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Fusion-12 Tempest

Fusion-12: The Tempest

 By Jeff Bagby

The idea was to provide a medium sized two-way loudspeaker that yields higher sensitivity and near full-range response. This was not an easy goal to meet but the woofer selected made it all work out much better than I expected, and I came away very surprised by the sound of this speaker. I selected the Eminence Delta Pro12-A woofer due to its high sensitivity and very linear response.  The Tweeter is the Denovo DNA-360 compression driver mounted to the SEOS-12.

This combination yields some of the flattest response I have seen in a high efficiency design.  The speaker has an in-phase fourth order acoustic crossover set at 1.3kHz, yielding a sensitivity of 98dB/2.83V/Meter.  The Tempest is vented and provides bass extension to 40hz (-3db) with a little extra kick in the mid and upper bass range. On a lot of rock and full scale orchestra music the Tempest is a very satisfying and exciting loudspeaker.  When paired with high output subwoofers the Tempests are really hard to beat.

The Fusion-12 was designed to perform best when paired with a subwoofer that can handle the lower frequencies.

Click below to see build threads for this speaker:

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