THIEL designed the CS3.7 with one idea in mind — to provide the listener with the most realistic and musical sound reproduction possible. To achieve this goal, THIEL loaded the CS3.7 with cutting-edge technologies while paying careful attention to each and every detail of design and construction. These speakers won the Consumer Electronics Show's 2007 Innovations Design and Engineering Award — THIEL's 22nd such award in their 31-year history. With the CS3.7, THIEL took everything they've learned over the past 31 years to create one of the finest speakers available today.
Unsurpassed sound with impressive midrange clarity
An aluminum woofer delivers deep, punchy bass.
The secret to the CS3.7's incredibly lifelike sound starts with a newly designed midrange driver. The aluminum diaphragm features ridges extending from the center to the outer edge. These ridges add strength to the driver, giving it far greater stiffness than typical diaphragms, or even those made from exotic materials. This design achieves such great stiffness that the midrange continues to operate perfectly all the way up to 20 kHz. The result? An open, transparent sound that includes every nuance of the original source material.
Remarkably clear highs
A high-output aluminum tweeter produces crisp highs, thanks in part to a unique motor structure that includes a total of five neodymium magnets. The CS3.7 houses the tweeter inside the midrange to maintain the proper time alignment, for unparalleled accuracy and realism. You'll enjoy crystal-clear sound with pinpoint imaging and an exceptionally wide, deep soundstage.
Richly detailed, musical bass
Bass comes courtesy of an aluminum woofer and passive radiator, each with a die-cast chassis. A motor structure consisting of a short, 3" diameter voice coil sitting inside a large magnet effortlessly drives the woofer. Unlike the voice coils found in most speakers that extend outside the magnet, the deliberately short voice coil always "sees" the optimum magnetic field as it travels back and forth. This eliminates distortion caused by variances in magnetic strength. The passive radiator increases the speaker's output. It all adds up to accurate, musical bass that perfectly complements the treble without being "boomy" or overbearing.
The advanced crossover ensures that your music is faithful to the original signal.
The "unsung hero" of any speaker is the crossover — it directs the right frequencies to the right drivers so you don't have a tweeter trying to reproduce bass and a woofer trying to reproduce highs. THIEL meticulously engineered their first-order crossover to achieve tonal neutrality. The advanced crossover ensures that musical information such as amplitude, phase, and time remain faithful to the original signal.
An exquisitely crafted cabinet
The super-strong cabinet features 15 layers of hardwood, laminated together under high pressure. Curved edges reduce unwanted diffraction while creating non-parallel surfaces to minimize sound-muddying internal resonance. The formed aluminum cabinet top provides enormous strength, virtually eliminating unwanted vibration. Its rounded shape around the midrange eliminates diffraction of energy from the mid and tweeter, and helps minimize resonances within the cabinet.
The machined aluminum front baffle is more than 30 times as strong as the usual MDF to provide an incredibly rigid mounting surface for the drivers. The sloping angle of the baffle also positions the voice coils of all three drivers on the same plane. This allows all the frequencies to reach your ears at the same time, giving you the most complete and accurate sound reproduction possible.
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