A real surprise.
Bought mine used off ebay as I didn't have high expections. I'd previously had a Kenwood KSC-SW11, which, despite all the praise it gets, I thought it was a box of underpowered, gutless rot.
I've had the Vibe Optisound under my seat for just a few days but it is far more powerful than the Kenwood, despite still tweaking the settings on my stereo, it seems to reach lower frequencies than the Kenwood and gives the audio some real depth. I've only got a run of the mill JVC with bluetooth, USB, etc., some really old Kenwood dual mags in the rear and set of Hertz components up front. I was pretty content with the way the mids and highs were and thought this little sub would just mush it up. Not the case. Highly recommended sub - especially for the prices on ebay. I'd avoid the Kenwood though.
Verified purchase: YesCondition: Pre-owned