The drive units form the heart of any speaker system, and their quality is the key to its sonic capability. Over 75% of the drive units used in Castle speaker systems are designed, engineered and built in Skipton. They have been developed to the highest standards, often featuring innovative technology normally found only in the most expensive designs.
Most of the bass units in our range feature cones made from woven carbon fibre, a light yet exceptionally stiff material with good internal damping, properties which led Castle to pioneer its use in bass mid drivers. Likewise, we use Kapton for our voice coil formers because of its exceptional power handling ability. Now, for the first time, we have introduced two new elements to our drive unit design - the use of T-shaped poles in the magnet assembly and copper coated aluminium voice coil wire. The former allows a far more linear motion to be maintained, improving accuracy and dynamics while reducing distortion. The latter results in a reduction of the moving mass of the driver, a vital parameter in producing speakers capable of maximising the impact of modern source components and programme material.
We have designed our tweeters to match the sonic performance of our bass units and so to enhance the musical accuracy of all Castle speakers. They offer extended and substantially flat response characteristics with very low distortion and are married with bass units through crossovers built with the highest quality components. |
|
Howard S3 Crossover
|
|
|
Copper coated aluminium wire voice coil wound on a Kapton former
|
|
|
Drop forged shaped metal pole for improved magnetic linearity
|
|
|
28mm soft dome tweeter used in the Harlech S2 and Howard S3
|
|
|
Howard S3 bass mid unit featuring a cast chassis and woven carbon fibre coned diaphragm
|
|
|
