Also worth checking out is the Blue Muse Unofficial Ampeg Page. For more Ampeg V4 information see the Ampeg V4 pages.
Cabinets using high frequency horns contain a variable level attenuator.
From ZZSounds.com: The world-renowned Classic Series Cabinets are synonymous with bass enclosures and the sound they are expected to produce.
From the undeniable tone of the SVT-810E to the unexpected low end of the extended range SVT-410HLF, Ampeg enclosures have set the standard for decades.
About this speaker cabinet: This Ampeg cabinet has been part of my bass recording rig for three years now.
That's why you'll find the SVT-810E on stage with such artists as Chris Squire (Yes), Geezer Butler (Black Sabbath), John Mc Vie (Fleetwood Mac), and far too many others to list here.
In the world of high performance bass cabs, the Ampeg SVT-810E stands tall and proud.