ID18-Pro Subwoofer Review

as printer in Home Theater Shack Forum

by Jim Wilson

Introduction
The subject of this review is the Bag End ID18-Pro, which is also referred to sometimes as Infrasub 18 PRO. As its name implies the ID18-Pro is a “professional” subwoofer, primarily used in studios for mastering movie soundtracks and music recording. It can be used in a HT environment as well, provided you’re willing to accept the less than standard way it goes about things. The ID18-Pro is an acoustic suspension subwoofer with a single front-firing 18″ driver. It measures 23.5″x21.5″x18″ (HWD, including grill), so it’s certainly not small. However, for a sub that contains an 18″ driver it’s not terribly large either. It weighs a rather substatial 92lbs, so it isn’t a lightweight. The amp is rated at 400 watts ‘continuous sine wave’, while the frequency response is listed as 8Hz-95Hz, +/-3dB. That’s not a typo either; it’s rated down to a bone-crunching 8Hz!

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