Questions & Answers

Eris E7 XT driver size ... smallish?

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asked Jul 31, 2020 in Sceptre, Eris, R-Series by jbrygider (130 points)

Can anyone tell me how speaker drivers are measured? I thought it was the size of the cone to the surround. Got a pair of Eris E7 XTs yesterday, which are supposed to have 6.5" drivers. Actual measurement of the cone is not even close to 6.5". What gives? Can anyone shed some light on this, or are the published specs misleading?


1 Answer

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answered Oct 23, 2021 by victordruslawski (220 points)
Speaker, in this case, woofer size is measured screw-to-screw of the speakers mounting ring, which we obviously don't see with these speakers as it is mounted from inside, so while, looking at your photo and considering some distortion of the camera, it looks like E7 XT has something like 5.5", which is just a dome, but if we measured screw-to-screw of the mounting frame it would be probably 6.5" size.

Still, there is no shame in creating a support ticket at https://my.presonus.com/support/ and asking their support team to validate it. It is true, though, E7 XT's woofer seems tiny, but that is because the cabinet is almost of the E8 XT's size (E8 is a couple of millimeters wider and deeper) and while we don't have 8" monster woofer, we still have that mighty waveguide.
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