Slightly taller than its Nautilus™ 801 predecessor and with a revised design for the plinth and underside of the cabinet, the 801D is easier on the eye despite its size. It has a larger volume than the 800D and a bass alignment suited to rooms with a more controlled, neutral acoustic.

Bass is provided by a substantial single Rohacell® sandwich cone driver, supported by a down-firing Flowport™. With the same midrange and tweeter arrangement as the 800D, the 801D also combines power with subtlety. The diamond dome tweeter is amazing in its ability to reproduce high frequencies in the most natural way – everything is there as it should be, without exaggeration.

As with all the 800 Series systems, the minimalist approach to crossover design and the use of the finest components ensures all the drivers combine to form a coherent whole.

Woven Kevlar
Crossover Tuning
Nautilus Tapering Tube
Flowport
Mushrooms
FST
Tweeter on Top
Matrix
Rohacell
Diamond Tweeters
Sphere / Tube Enclosure
De-Coupling
Nautilus
Technical features	Free-mounted diamond dome tweeter
	Kevlar® brand fibre cone FST™ midrange
	Rohacell® cone bass
	Nautilus™ head
	Matrix™ cabinet
	Flowport™
Description	3-way vented-box system
Drive units	1x ø25mm (1 in) diamond dome high-frequency
	1x ø150mm (6 in) woven Kevlar® cone FST™ midrange
	1x ø380mm (15 in) Rohacell® cone bass
Frequency range	-6dB at 23Hz and 33kHz
Frequency response	29Hz – 28kHz ±3dB on reference axis
Dispersion	Within 2dB of reference response
	Horizontal:
	Vertical:
Sensitivity	90dB spl (2.83V, 1m)
Harmonic distortion	2nd and 3rd harmonics (90dB, 1m)
	<1% 40Hz – 100kHz
	<0.5% 50Hz –100kHz
Nominal impedance	8Ω (minimum 3.5Ω)
Crossover frequencies	350Hz, 4kHz
Recommended amplifier power	50W – 1000W into 8Ω on unclipped programme
Max. recommended cable impedance	0.1Ω
Dimensions	Height:
	Width:
	Depth:
Net weight	118kg (260 lb)
Finishes	Cabinet
	Cherrywood
	Rosenut