The history of the NHT's is linked to AR in the "Glory Days".
The NHT side firing woofers saw their beginning in the AR9's
which had 2 x 12" per cabinet. Killer New England sound for the period. Played them many years. Many amps, Coda 10, Aragon 4004 MKII, Clayton Audio M70 Mono's, Audion Tube, Alan Kimmel OTL's, Audio Valve Challenger's and Mac MC240's. Killer Rock and Roll and Classical music.
Owned the VR4's till present great sound Jazz and Female vocals non box sound, incredible bass for 2 x 8 per cabinet.
Those Class A Coda's in vertical Bi-Amp provided the deepest, snappiest and tightest bass I've heard and the AR9's driven to ear damaging volumes.
The NHT 3.3 was a consideration before I bought the VR4's.
Many good reviews on them both.
I discovered Custom Burgess/Kimmel modded DHT SET's
#10, 801A, 45,46, 2A3, 300B and 845 on my Altec modded A7 500 VOTT's and Valencias with Zu Method sub and Altec Rear Loaded Corner Horn 604D (center channel) active
x-over and never looked back.
Gave my son the VR4's and an 845 amp, my grandson now has my aging '79 AR9's(modded and new surrounds).