Content | Tweeter 1¨Silk/Polymer Dynamic Balance x1
Mid/Woofer 6 ½¨Dynamic Balance x 2
Bass Radiator 6 ½¨Dynamic x 2
Frequency Response 38Hz - 24kHz
Nominal Impedance 6 Ohms
Rec. Amplifier Power 20-100 Watts/Channel
Power Handling 150 Watts
Sensitivity 90dB
Dimensions (cm) 92.75 x 22.22 x 19.68
Key Features:
- The speaker is finished in a furniture-grade black oak finish that settles nicely into existing decor.
- The high sensitivity of the unit allows for maximum amplifier efficiency.
- The 1 - 1 ratio of the silk dome Dynamic Balance™ wave guide tweeter provides transparent, crystal-clear treble.
- 6.5" extended throw composite Dynamic Balance drivers create the open, uncoloured midrange and punchy, dynamic bass you crave.
- Get powerful output bass at the lowest frequencies from the two 6.5" mass-loaded composite sub bass radiators.
- The acoustically insert MDF cabinet construction with internal bracing
- 5-Way binding posts provide a stable base for these speakers.
- The base is integrated—no assembly required.
Detailed Specifications
Driver Complement:
- Mid/Woofer - Diameter: 6.5“; 2–6.5" Bass Radiator
- Mid/Woofer - Quantity: 1
- Tweeter - Diameter: 1“
- Tweeter - Quantity: 1
- Tweeter - Type: Wave Guide
Electrical:
- Efficiency: 90 dB
- Inputs: 5-Way Binding Posts
- Lower -3dB Limit: 40Hz
- Nominal Impedance: 6 ohms
- Recommended Amplifier Power: 20 – 100 W/Channel
- Total Frequency Response: 38Hz – 24kHz
- Upper -3dB Limit: 20kHz
- Crossover Frequency: 2-way
- Power Handling Peak: 150W
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Room-filling sound without a room-filling speaker cabinet. Slimmer than ever before, the 684 S2 offers an amazing combination of floorstander power, audio performance and unbeatable value.
Switching to 5-inch bass/midrange drivers from the previous 6.5-inch cones, means the 684 S2 is now significantly slimmer than its predecessor, with simultaneously improved audio performance, thanks to Bowers & Wilkins innovation. The two Kevlar cone drivers benefit from smaller voice coils to increase sensitivity.
The 5-inch drivers now also feature Anti-Resonance Plug dustcaps, technology taken from our high-end PM1 speakers, that improve pistonic movement inside the voice coil. This helps to deliver amazingly distortion-free midrange performance, all in a smaller space.
As well as slimmer, improved driver performance, the 684 S2 also features a Decoupled Double Dome tweeter. Double dome technology, brought across from the CM10, increases tweeter rigidity for a more precise sound, while the tweeter sits in a gel-filled cavity, decoupled from the surrounding cabinet - which removes resonances and vibrations, for a more natural, spacious sound.
Woven Kevlar | Yes | Crossover Tuning | Yes | Nautilus Tapering Tube | Yes | Flowport | Yes | Technical features | Decoupled Double Dome aluminium tweeter with NautilusTM tube loading
Kevlar® brand fibre cone bass/midrange drivers
FlowportTM | Description | 2-way vented-box system | Drive units | 1x ø25mm (1 in) aluminium dome high-frequency
2x ø130mm (5 in) woven Kevlar® cone bass/
midrange | Frequency range | -6dB at 45Hz and 50kHz | Frequency response | 72Hz - 22kHz ±3dB on reference axis | Dispersion | Within 2dB of reference response
Horizontal: over 60º arc
Vertical: over 10º arc | Sensitivity | 87dB spl (2.83V, 1m) | Harmonic distortion | 2nd and 3rd harmonics (90dB, 1m)
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System Format: 3 Way Frequency Response: 32Hz - 35kHz Sensitivity (1W@1M): 90dB Nominal Impedance: 4 Ohms Maximum SPL (dBA): 116.2 Power Handling (RMS): 175W Recommended Amplifier Requirements (RMS): 50 - 175W Bass Alignment: Bass reflex. Twin HiVe®II port System Tweeter Crossover Frequency: LF/MF: 300Hz MF/HF: 2.2 kHz Drive Unit Complement: 2 x 6" RST® Bass drivers. 1 x 6" RST® Bass/Mid driver. 1 x 1" (25mm) C-CAM® gold dome tweeter Product External Dimensions: (H x W x D) inc. plinth & feet 960 x 275 x 388 mm (37 13/16 x 10 13/16 x 15 1/4 inch) Individual Weight: 21.76 Kg (47.88 lb) User's Manual
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If itʼs hard to put the sound of the CM9 into words, thatʼs just as well. This top-of-the-range floorstanding speaker will fill even the largest domestic spaces with music so richly detailed, and so startlingly lifelike, that it will leave you speechless.
The three-way CM9 delivers truly commanding bass with the aid of twin 165mm paper/Kevlar® cone drive units. An FST® driver, with its characteristic compression surround supporting the outer edge of the distinctive Kevlar® cone, is specially developed for outstanding midrange performance. The CM9ʼs Nautilus™ tube-loaded aluminium dome tweeter keeps high frequencies crisp and sharp all the way up to 50kHz and beyond.
The quality of CM Series drive units has made it possible to use minimalist crossovers throughout the whole range. The resulting gentle transition between drivers avoids the unnaturally rapid changes in dispersion that bedevil more complex designs, while the high quality components, carefully chosen after exhaustive listening tests, ensure that as little as possible gets between you and the sound of the original recording.
All CM Series speakers come with aluminium driver trims. Grilles attach magnetically, so there are no unsightly grille-mounting features to spoil the clean lines of the speakerʼs façade. For the finish, you can choose either one of two real-wood veneers in Rosenut or Wengé, or a highly polished gloss black.
Technical features
Nautilus™ tube loaded aluminium dome tweeter
Kevlar® brand fibre cone FST midrange
Flowport™
Description 3-way vented-box system
Drive units 1x ø25mm (1 in) aluminium dome high-frequency
1x ø150mm (6 in) woven Kevlar® cone FST midrange
2x ø165mm (6.5 in) paper/Kevlar® cone bass
Frequency range -6dB at 30Hz and 50kHz
Frequency response 56Hz - 22kHz ±3dB on reference axis
Dispersion Within 2dB of reference response
Horizontal: over 60º arc
Vertical: over 10º arc
Sensitivity 89dB spl (2.83V, 1m)
Harmonic distortion 2nd and 3rd harmonics (90dB, 1m)
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Three way, bass-reflex
Sub-woofer 200 mm.
coated paper
Mid-woofer 130 mm. paper
Tweeter 28 mm. soft dome
coated silky fabric
Impedance: 6 Ohm (min. 4)
RMS Power: 120 W
MAX Power: 200 W
Efficiency: 90 dB/W/1 m
Dimensions: 325x385x1130 mm.
Net weight: 26 Kg.
Finish:
cherrywood, metallized mat grey
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Room-filling sound without a room-filling speaker cabinet. Slimmer than ever before, the 684 S2 offers an amazing combination of floorstander power, audio performance and unbeatable value.
Switching to 5-inch bass/midrange drivers from the previous 6.5-inch cones, means the 684 S2 is now significantly slimmer than its predecessor, with simultaneously improved audio performance, thanks to Bowers & Wilkins innovation. The two Kevlar cone drivers benefit from smaller voice coils to increase sensitivity.
The 5-inch drivers now also feature Anti-Resonance Plug dustcaps, technology taken from our high-end PM1 speakers, that improve pistonic movement inside the voice coil. This helps to deliver amazingly distortion-free midrange performance, all in a smaller space.
As well as slimmer, improved driver performance, the 684 S2 also features a Decoupled Double Dome tweeter. Double dome technology, brought across from the CM10, increases tweeter rigidity for a more precise sound, while the tweeter sits in a gel-filled cavity, decoupled from the surrounding cabinet - which removes resonances and vibrations, for a more natural, spacious sound.
Woven Kevlar | Yes | Crossover Tuning | Yes | Nautilus Tapering Tube | Yes | Flowport | Yes | Technical features | Decoupled Double Dome aluminium tweeter with NautilusTM tube loading
Kevlar® brand fibre cone bass/midrange drivers
FlowportTM | Description | 2-way vented-box system | Drive units | 1x ø25mm (1 in) aluminium dome high-frequency
2x ø130mm (5 in) woven Kevlar® cone bass/
midrange | Frequency range | -6dB at 45Hz and 50kHz | Frequency response | 72Hz - 22kHz ±3dB on reference axis | Dispersion | Within 2dB of reference response
Horizontal: over 60º arc
Vertical: over 10º arc | Sensitivity | 87dB spl (2.83V, 1m) | Harmonic distortion | 2nd and 3rd harmonics (90dB, 1m)
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