Accuton Drive Units - All
Accuton Tweeters, Midranges and Woofers.
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All prices include VAT.
A brief history of Accuton drive units:
In 1984 whist working at audiophile component manufacturer Backes & Müller, Bernhard Thiel perfected a process to manufacture microscopic sheets of the extremely hard mineral corundum, an aluminium oxide (α-Al2O3), this is of course more commonly known as the gemstone Sapphire. This patented procedure enabled the manufacture of extremely rigid, light weight and highly damped transducer diaphragms resulting in loudspeaker drivers with a broader bandwith, lower distortion and a purer sound than previously possible.
Ceramic drivers set new standard:
At first, these novel ceramic drivers were produced exclusively for new Backes & Müller products, but after a few years Bernhard Thiel decided to found his own company. Bernhard's sonically pure loudspeaker units (initially only tweeters and midranges) - were rapidly accepted to high acclaim within the audiophile industry. Since those early days, Accuton has experienced continuous growth, expansion and is a major innovator within loudspeaker design.
Diamond domes - the pinnacle of high - end:
Accuton have also developed a range of extreme high end tweeters featuring CVD diamond domes for commercial customers:
CVD is an acronym for Chemical Vapour Deposition, a very complex process whereby a diamond is synthesized by deposition from a mixed gas (usually hydrogen and methane) onto a substrate at a temperature of around 800°C. As the diamond dome is incredibly hard, the breakup frequency is at an astonishing 40+ kHz and is way outside the audible spectrum, therefore no damping is required. CVD diamond is the hardest known material and offers unsurpassed rigidity as a domed diaphragm. The electrical energy to transient sound conversion is the most accurate offering a new level transparency and resolution.
Accuton drive units from Willys Hifi Ltd:
We are an authorised Accuton dealer and supply the full range of currently available drive units:
- Ceramic Tweeters, Midrange and Bass
- Diamond** Tweeters and Midrange
- Sandwich Bass Midrange and Passives
- Aluminium Passive Radiators
Many of these exquisite drive units are hand built to order - please contact us for more details.
Here are some interesting Accuton datasheets for download:
Mounting Cell Drivers: 
Diamond Booklet:
Accuton Measurement: 
High End Audio:
** Diamond domes: BD20-6-031, BD25-6-034, BD30-6-036, BD50-6-039 are available for commercial customers, please contact us .
Accuton C158-6-851 Ceramic Bass / Midrange
£210.39
Long Throw Ceramic Bass - Midrange. 6.25 inch / 158mm chassis. The Accuton C158-6-851 Bass / Midrange drive unit features an ultra hard ceramic (Sapphire) 120mm cone inside a 158mm...
Accuton C158-8-085 Ceramic Bass / Midrange
£196.89
6.25 inch / 158mm Ceramic Bass - Midrange. High midrange resolution design. The Accuton C158-8-085 Bass / Midrange driver is a development of the C158-6-851 with a slightly different design...
Accuton C173-6-090 Ceramic Midrange
£580.89
Audiophile midrange driver with Sapphire diaphragm. The C173-6-090 is a midrange drive unit featuring an ultra hard ceramic (Sapphire) 120mm cone in a 173mm diameter chassis. Precision cut apertures in...
Accuton C173-6-096 Ceramic Bass / Midrange
£549.40
7 inch 6 ohm Ceramic Bass - Midrange. The Accuton C173-6-096 Bass / Midrange is an esoteric 7 inch unit primarily intended for high end 3 way designs. This state...
Accuton C173-6-096E Ceramic Bass / Midrange
£583.54
7 inch Ceramic Bass / Midrange driver with damped cone. The Accuton C173-6-096E Bass / Midrange is an esoteric 7 inch unit primarily intended for high end 3 way designs....
Accuton C173-6-191 Ceramic Bass / Midrange
£218.33
7 inch Ceramic Bass / Midrange drive unit for compact enclosures. The Accuton C173-6-191 Bass / Midrange is an esoteric 7 inch drive unit primarily intended for high end compact...
Accuton C173-6-191E Ceramic Bass / Midrange
£265.17
7 inch Ceramic Bass / Midrange driver with damped cone. The Accuton C173-6-191E Bass / Midrange is an esoteric 7 inch unit primarily intended for small floorstanders and bookshelf monitors....
Accuton C173-6-197 Ceramic Bass / Midrange
£396.96
7 inch 6 ohm Ceramic Bass - Midrange driver. Neodymium magnet, high efficiency. The Accuton C173-6-197 Bass / Midrange is an esoteric 7 inch unit primarily intended for high end...
Accuton C220-11-221 Ceramic Bass / Midrange
£372.35
8.5 inch 11 ohm Ceramic Bass / Midrange driver. For valve amps or parallel array. The Accuton C220-11-221 Bass / Midrange is an esoteric 8.5 inch drive unit primarily intended...
Accuton C220-6-221 Ceramic Bass / Midrange
£359.65
8.5 inch 6 ohm Ceramic Bass / Midrange. The Accuton C220-6-221 Bass / Midrange is an esoteric 8.5 inch drive unit primarily intended for 2 and 3 way floor standing...
Accuton C220-6-222 Ceramic Bass / Midrange
£672.46
8.5 inch 6 ohm Ceramic Bass / Midrange. Neodymium magnet, high efficiency. The Accuton C220-6-222 Bass / Midrange is an esoteric 8.5 inch drive unit primarily intended for 2 and...
Accuton C25-6-012 Ceramic Dome Tweeter
£144.50
1 inch (25mm) 6 ohm tweeter - ceramic dome. Precision cut and filled apertures in the Sapphire diaphragm provide critical damping of the 37 kHz dome resonance. The overhung motor...
Accuton C25-6-013 Ceramic Dome Tweeter
£200.07
1 inch (25mm) tweeter - ultra hard ceramic dome, high efficiency. This tweeter is a higher efficiency version of C25-6-012 and features a Neodymium magnet. There are some sonic differences,...
Accuton C25-6-158 Ceramic Dome Tweeter
£268.35
1 inch ultra hard ceramic dome tweeter - Cell Concept Driver. The C25-6-158 is a 1 inch tweeter with an ultra hard (Sapphire) ceramic dome in a 58 mm cylindrical...
Accuton C30-6-023 Ceramic Dome Tweeter
£210.39
30mm tweeter with ultra hard ceramic dome. This item has been discontinued - special order only. Audiophile quality tweeter with Sapphire dome. Precision cut and filled apertures in the inverted...
Accuton C30-6-024 Ceramic Dome Tweeter
£231.03
30mm tweeter with ultra hard Sapphire dome. Neodymium magnet. High efficiency version of the C30-6-23 featuring a double neodymium magnet assembly and Sapphire dome. Precision cut and filled apertures in...
Accuton C30-6-358 Ceramic Dome Tweeter
£300.11
30mm Sapphire dome tweeter - Cell Concept Driver. The C30-6-358 is a 30mm tweeter with an ultra hard (Sapphire) ceramic dome in a 58 mm cylindrical body. This tweeter is...
Accuton C50-8-044 Ceramic Dome Tweeter
£232.62
50mm tweeter with inverted Sapphire dome. This item has been discontinued - special order only. The C50-8-044 is a mid-treble drive unit featuring an ultra hard ceramic (Sapphire) 50mm inverted...
Accuton C51-6-286 Ceramic Dome Midrange
£339.51
Accuton C51-6-286 Ceramic Dome Midrange - Cell Concept. Features include: ultra hard 51mm ceramic dome, 86mm Cell Concept body, discrete clamping system for secure mounting to baffles. The dome breakup...
Accuton C90-6-078 Ceramic Midrange
£284.23
Esoteric midrange driver with 90mm Sapphire diaphragm. This item has been discontinued - special order only. The C90-6-078 is a midrange drive unit featuring an ultra hard ceramic (Sapphire) 90mm diaphragm...
Accuton C90-6-079 Ceramic Midrange
£279.46
Esoteric midrange driver with 90mm Sapphire diaphragm. Ferrofluid cooled. This item has been discontinued - special order only. The C90-6-079 is a midrange drive unit featuring an ultra hard ceramic (Sapphire)...
Accuton C90-6-724 Ceramic Mid / Bass
£389.03
Esoteric Ceramic Midrange / Bass unit with 124mm chassis. Cell Concept Driver. The C90-6-724 is a 5 inch chassis (124mm) Midrange / Bass drive unit with an ultra hard ceramic...
Accuton P173 Passive Radiator
£60.34
7 inch Aluminium mass adjustable passive radiator. The Accuton P173 is an adjustable high end passive radiator and is an ideal partner for the C173 range of drive units. Features...
Accuton P220 Passive Radiator
£77.81
8.5 inch Aluminium mass adjustable passive radiator. The Accuton P220 is an adjustable high end passive radiator and is an ideal partner for the C220 range of drive units. Features...
Accuton P280 Passive Bass Radiator
£197.69
11 inch Ceramic sandwich mass adjustable passive radiator. The Accuton P280 is a high end passive radiator designed to complement the S280 range of drive units and features the same...
Accuton S220-6-221 Sandwich Bass Unit
£341.39
8.5 inch 6 ohm Ceramic Sandwich Bass Unit. The Accuton S220-6-221 is an esoteric 8.5 inch (220mm) bass drive unit primarily intended for medium to large 3 way floor standing...
Accuton S220-6-222 Sandwich Bass Unit
£672.46
8.5 inch 6 ohm Ceramic Sandwich Bass Unit. Neodymium magnet. The Accuton S220-6-222 is an esoteric 8.5 inch (220mm) bass drive unit primarily intended for medium size 3 way floor...
Accuton S280-18-282 Sandwich Bass Unit
£996.38
11 inch 18 ohm Ceramic Sandwich Bass Unit. Neodymium magnet. The Accuton S280-18-282 is an esoteric 11 inch (280mm) bass drive unit primarily intended for large 3 way floor standing...
Accuton S280-18-282N Sandwich Bass Unit
£1,067.83
11 inch 18 ohm Ceramic Sandwich Bass Unit. Optimised for smaller cabinets. The Accuton S280-18-282N is an esoteric 11 inch (280mm) bass drive unit primarily intended for medium sized 3...
Accuton S280-6-282 Sandwich Bass Unit
£983.38
11 inch 6 ohm Ceramic Sandwich Bass Unit. High efficiency 93 dB. The Accuton S280-6-282 is an esoteric 11 inch (280mm) bass drive unit primarily intended for medium to large...
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