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803 Diamond

The 803 Diamond might look almost as imposing as the 802 Diamond, but thanks to its smaller footprint and more traditional cabinet design, it will fit more comfortably into a home environment.

803 Diamond

The 803 Diamond might look almost as imposing as the 802 Diamond, but thanks to its smaller footprint and more traditional cabinet design, it will fit more comfortably into a home environment. With three massive 7” Rohacell® bass drivers, it delivers almost as much bass as the 802 Diamond, filling even the largest of domestic rooms with rich, stunningly lifelike sound.

The design and proportions of the top two speakers in the range are derived at for sound acoustic reasons – but understandably, not everyone wants the visual disruption that such a radical piece of furniture can create in a home environment. The 803 Diamond takes up less space and is arguably easier on the eye – but thanks to its three bass drivers, it generates a sound that’s almost a match for its bigger brothers.

For the 800 Series Diamond range, we’ve refined the science of magnet motor design to a fine art. Each of the 803 Diamond’s three bass drivers are powered by a dual magnet motor system, creating a more symmetrical magnetic field and reducing harmonic distortion. Meanwhile a unique quad magnet design keeps the tweeter running cool and smooth, even at the highest frequencies.

803 Diamond
Woven Kevlar
Crossover Tuning
Nautilus Tapering Tube
Flowport
Mushrooms
FST
Tweeter on Top
Matrix
Rohacell
Diamond Tweeters
De-coupling
Quad Magnet Tweeter Motor
Dual Magnet Tweeter Motor
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

3x ø180mm (7 in) Rohacell® cone bass
Frequency range -6dB at 28Hz and 33kHz
Frequency response 35Hz – 28kHz ±3dB on reference axis
Dispersion Within 2dB of reference response
Horizontal: over 60º arc
Vertical: over 10º arc
Sensitivity 90dB spl (2.83V, 1m)
Harmonic distortion 2nd and 3rd harmonics (90dB, 1m)

<1% 50Hz – 100kHz

<0.5% 90Hz –100kHz
Nominal impedance 8Ω (minimum 3.0Ω)
Crossover frequencies 350Hz, 4kHz
Recommended amplifier power 50W – 500W into 8Ω on unclipped programme
Max. recommended cable impedance 0.1Ω
Height: 1164mm (45.8 in) (not including feet)
Width: 306mm (12 in)
Depth: 457mm (18 in)
Net weight 41kg (90 lb)
Cabinet: Cherrywood

Rosenut

Piano Black Gloss
Grille: Black cloth

Sound Stage Hi-Fi - February 2011
"..the 803 Diamonds will find homes in many fine music systems across the world, and rightly so."
Read the full review

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804 Diamond

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The 804 Diamond boasts a truly commanding acoustic performance, thanks to its three-way design incorporating two Rohacell® bass units, an FST™ midrange and a diamond dome tweeter.

HTM4 Diamond

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