E92 Audio Upgrade Intro and Phase 1 - Vibe Litebox Stereo 4 Amplifier Install
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03-07-2011, 03:28 PM
Drives: F25 X3, 2.0T A4 S-Line Avant
Join Date: Apr 2006
Location: Norfolk, UK.
Did you seal the driver in the enclosure?? It needs to be air tight.
Without it being airtight they go down to around 50hz, with it airtight they go down to 30hz and gain around 6db, which is twice the volume.
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