Here is a picture of the real Grands in a room, so you can have a point of reference. The "little" amps between the speakers are actually the monstrous dual-chassis Krell Audio Standards. Each speaker is 88"H x 32"W x 39"D and 650lbs. They are BIG, but like the Von Schweikert VR-11 and Wilson X-2 they are a single piece per side full range system, unlike the flagships from Martin Logan, Infinity, Genesis, Nola, etc. which use separate main and subwoofer towers.

Here is a picture of the Studio Grands and Mini Grands side by side

The Studio Grand is 73"H x 28"W x 25"D and 180 lbs per side. The Mini Grand is 50" x 20" x 20". The top of the Mini Grand is the Stage. The depth of the Grand Series is from the subwoofer bases, the planars top sections are only about 3" deep. The planar portion of each fo these is a two way design, rather than the three way design used in the Diva, Scintilla, Grand, and the initial Full Range model.
For comparison, the Diva is 74"H x 32"W x 3"D and weighs about 150lbs each. Although a simplification, you can consider the Grand a Diva sitting atop subwoofer bases, with dual 12" drivers powered by a built in Krell amp. Strangely there was also a built-in Krell amp for the tweeters. The owner provided an amp for the midrange ribbon and planar bass panel.
The Scintilla is about the same width as the Diva but only about 58"H, yet it is heavier at about 180lbs each. I've moved or helped move several Divas and Scintillas, the Scintillas are very dense!
The Divas have been reincarnated as the "Definitive" by Perigee, an Australian company. Graz (the owner) has physically separated the bass section from the mid/treble section, and each fits into an extremely heavy base. This is very similar to the design of the Martin Logan Statement E2 mains. Unlike the original Apogees, which had sensitivities in the low-mid 80dB/w range, the Definitives are about 100dB per 1W! If the Definitves were priced less than a Mercedes-Benz SL55AMG I may have flown to Australia to audition and buy a pair ...
