„Pioneer
• A Pioneer termékek között rengeteg újdonság fedezhető fel, melyek között igazi csemege az ultra lapos mélysugárzó (TS-SW124D), vagy az új digitális monoblock erősítő (GM-D515), illetve az új belépőszintű multicsatornás erősítő család.”

„Alpine SPE-17SF Autóhifi Hangszóró Szett
Features
Extrem shallow mounting depth”

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Note added at 31 perc (2009-02-27 11:51:35 GMT)
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Az 1. példában szereplő mélysugárzó:
„Pioneer TS-SW124D Shallow-Mount Subwoofer
...
The problem is simple: There’s little room for a subwoofer in a pickup truck. With the undeniable popularity of pickups and SUVs these days, something had to be done. We live and play everyday with our trucks and suffering through a bland sound system at a tailgate party is no way to have a good time.
Solution: Introducing the Premier® TS-SW124D shallow subwoofer from Pioneer, featuring a revolutionary design with just 4" total depth (just 3-1/4" mounting depth!). This revolutionary new subwoofer provides the body-rumbling bass of a fullsize 12-inch sub in a package that fits almost anywhere, especially behind a seat!”
http://www.generalmanual.com/Speaker/Pioneer-TS-SW124D-Shall...