Thiel CS2.3 loudspeakers

 

The Thiel CS2.3 reflects our highest standards for sonic reproduction, regardless of price or class.

 

The 3-way CS2.3 incorporates many of the advanced driver, enclosure, and crossover design principles used in larger and more expensive Thiel models, but does so at a lower price and in a moderately sized cabinet. The CS2.3 employs a 1-inch metal dome tweeter coaxially mounted with a 3.5-inch midrange driver, and an 8-inch metal diaphragm woofer, with a passive radiator. Thiel’s unique  Coherent Source design provides greater realism The CS2.3’s outstanding performance is achieved in part by Thiel’s Coherent Source design technology which preserves the music’s time and phase information for much greater realism. Phase correct crossover design and time correct driver mounting provide natural three-dimensional imaging and greater clarity. The CS2.3’s high performance also results from our extremely thorough engineering, rugged construction, and use of unusually high quality components.

 

Features

A 3-inch thick baffle, 1-inch thick cabinet walls, and internal bracing greatly increase cabinet stiffness. By reducing unwanted vibration, both clarity and imaging performance are improved.

The baffle’s rounded edges contribute to very open sound by significantly reducing edge diffraction.

Thiel-designed and built drivers incorporate several innovative design techniques to reduce diaphragm resonances, increase output levels, and lower distortion.

 

 

Specifications

Bandwidth (-3 dB):  35 Hz - 23 kHz

Amplitude Response:  37 Hz - 20 KHz ±2 dB

Phase Response:  minimum ±5°

Sensitivity:  87 dB at 2.8 v-1m

Impedance:  4Ω, 3Ω minimum

Recommended Power:  100-400 watts

Driver Complement:

Woofer :  8" (6.4" radiating area) with anodized aluminum cone, cast frame, 1.7" dia. voice coil. Underhung coil (short coil/ long gap) motor system. Linear travel 0.4" pk-pk, 13 in3 linear displacement. 2.5 lb. magnet, 6 lb. total magnet structure. Copper pole sleeve, copper magnet ring. Made by THIEL.

Midrange :  4.5" (2.7" radiating area) with anodized aluminum diaphragm, cast frame, 1" dia. voice coil. Underhung coil (short coil/long gap) motor system. Linear travel 1/8" pk-pk. Magnet weight of .8 lb. powers midrange and tweeter. Copper pole sleeve. Ferrofluid. Made by THIEL.

Tweeter :  1" (1.2" radiating area) with anodized aluminum dome. Powered by midrange motor. Coincident with midrange.

Dimensions (W x D x H):  11 x 15 x 41.5 inches

Weight:  70 lb

Thiel CS1.6 loudspeakers

Coherent Source ® Loudspeaker

 

The CS1.6 is a 2-way floor-standing model incorporating several new innovative design techniques that greatly improve performance in a small, floorstanding loudspeaker. The 36-inch tall CS1.6 delivers a much purer and more open upper midrange response coupled with a sweeter and smoother high frequency performance than conventional two-way models. The new CS1.6 also offers a very high 90 dB efficiency to work well with lower amounts of amplifier power.

Completely Time and Phase Coherent

As with all THIEL loudspeakers, the CS1.6 is completely time and phase coherent for much greater sonic realism. THIEL’s Coherent Source® technology achieves the elimination of both time and phase distortions that cause alterations in the reproduced musical waveforms of most loudspeakers. Eliminating these distortions results in enhanced realism, clarity, transparency and immediacy as well as improved imaging and soundstaging in both the lateral and depth perspectives. Phase coherence is achieved by utilizing a sophisticated first-order electrical crossover system in conjunction with unusually wide bandwidth drivers. Time coherence is achieved by placement of the drivers on a baffle that is sloped at the correct angle to cause the sound energy from each to reach the listener at the same time.

 

Innovative Woofer and Tweeter Design

Much of the CS1.6’s outstanding performance is the result of its new high output, high efficiency aluminum dome, 1-inch tweeter and the innovative woofer diaphragm/voice coil design. Both drivers incorporate short coil/long gap, copper stabilized motor systems to greatly reduce distortion, employ metal diaphragms for very uniform Frequency response and clarity, and use Long Excursion Motor Systems for high Output capability.

 

High performance from a small, floor-standing loudspeaker

The CS1.6 is a two-way, floor-standing speaker system that incorporates THIEL’s latest innovative driver technology, rugged cabinet construction, and phase/time correct Coherent Source® design. Allmetal diaphragm, low-distortion drivers are used for outstanding tonal response and the advanced phase correct crossover design greatly improves spatial fidelity and clarity.

 

High output, high efficiency tweeter

The CS1.6 tweeter is a high output, high efficiency aluminum dome unit with long excursion abilities that reduce distortion and increase output capability. The new high frequency driver uses a short coil/long gap motor system design for low distortion, a copper sleeve to stabilize the strength of the magnetic field for reduced distortion, and practically unbreakable lead wires for increased reliability—features all shared with THIEL’s more expensive models’ tweeters.

 

Metal diaphragm, low distortion woofer

The CS1.6’s 6.5-inch woofer uses a much larger than normal diameter voice coil to greatly extend the woofer’s bandwidth for improved upper midrange performance. The large diameter coil distributes its driving force over a large area of the cone rather than concentrating it at the center. This coil design coupled with the woofer’s metal diaphragm increases the cone’s stiffness and frequency of unwanted resonances for very clear and open reproduction. The short coil/long gap, copper-stabilized motor system dramatically reduces distortion. Equally innovative is the woofer’s centrally located neodymium magnet that is placed inside the coil, rather than outside, creating an inherently shielded speaker to prevent picture distortion when placed near video displays.

 

Cabinet construction

The compact cabinet is built with a 2-inch thick front baffle and 1-inch thick cabinet walls for extreme rigidity to reduce unwanted vibration, improving clarity and spatial performance. The baffle’s rounded edges reduce diffraction effects for improved tonal, spatial, and transient performance, and its sloped front correctly time aligns the tweeter with the woofer. The unique slotted bass reflex system reduces unwanted port noise and grille loading effects.

 

Finished in the world’s finest woods

The CS1.6 is available in a wide variety of exquisite, real-wood, laminate, and painted cabinet finishes, finely crafted to enhance any home environment.

 

Specifications:

Bandwidth (–3dB):  48 Hz - 20 kHz

Amplitude Response:  50 Hz - 20 kHz ±2 dB

Phase Response:  Minimum ±10°

Sensitivity: 90 dB at 2.8 V-1m

Impedance:  4 Ω   (3.0 Ω   minimum)

Recommended Power:  50 - 300 watts

Dimensions (W x D x H):  9" x 11.5" x 35.5"

Weight:  38 pounds

 

Thiel CS.5 speakers

The CS.5 is a Two-way ported, floor-standing loudspeaker offering high performance in a compact, easy-to-place cabinet and at an entry-level price. Completely time and phase coherent, the CS.5 provides a dimension of clarity and realism that conventional speakers in its price class cannot achieve, making it ideal for both music and video sound.

The CS.5 incorporates many of the same design techniques used in other Thiel, speakers to achieve our goal of accurate musical reproduction in all areas of performance. The drivers are positioned along a sloping front baffle for correct time alignment, and the crossover is designed to provide phase accurate transitions between the drivers. These two design features alone result in an unusually high level of spatial and transient fidelity for a speaker of this price. A specially shaped grillboard decreases diffraction for more open sound, and the heavy cabinet construction reduces unwanted vibration to improve clarity and imaging.

Quality construction and materials.

The CS.5 uses the same quality materials as the more expensive Thiel models - a die cast magnesium woofer chassis, polypropylene or polystyrene capacitors, and rigid 1-inch thick cabinet walls.

Tweeter

The 1-inch metal dome tweeter uses a large magnet, vented pole, and reinforced rear chamber to allow a low resonance frequency and a wide bandwidth. The result is high frequency reproduction of great clarity and realism.

Woofer

The Thiel-designed 6,5-inch, treated paper cone woofer incorporates the same short coil/long gap motor design as other Thiel woofers for low distortion, very good midrange performance, and clean bass response. The woofer is magnetically shielded to prevent video image distortion.

Specifications

Recommended Power Amplifier:  30 - 150 watts

Driver Complement:

Woofer ;  6,5 " (5" radiating area) with treated paper cone, cast frame, 1" diameter voice coil. Underhung coil (short coil/ long gap) motor system. Linear travel 1,4" pk-pk. Two magnets with total weight of 1,4 lb. Copper pole sleeve

Tweeter :  1" aluminum dome with short coil, ferrofluid, vented pole to rear chamber, reinforced chamber cup.

Bandwidth:  55 Hz - 20 kHz (-3 dB)

Amplitude Response:  55 Hz - 20 kHz ±3 dB

Phase Response:  ±10° minimum

Sensitivity:  87 dB at 2,8 V/ 1m

Impedance:  4 Ω, (3,2 Ω minimum)

Dimensions (W x H x D):  8" x 31" x 11"

Weight:  35 pounds

THIEL Model 02 (1976)

THIEL Audio approaches speaker system design with the intention of providing the discriminating listener with musically accurate loudspeakers that incorporate a broad range of important performance characteristics. Our emphasis on total performance requires attention not only to musical qualities, but also to such characteristics as high efficiency, rellabillity and cost-effectiveness. The Thiel model 02 loudspeaker is a two way ported design that provides smooth, natural reproduction and good bass response in an efficient bookshelf system.

PERFORMANCE FEATURES

Smoothness and balance are the most critical factors for natural sounding reproduction of music. The Model 02 has a smooth response and is accurately balanced, resulting in very detailed and natural sound. Accurate bass response is an important musical characteristic that is often not achieved in speakers in this price class. The bass response of the Model 02 is clean and tight, extending flat to 45 Hz without boom or distortion.

Efficiency,although not directly audible, is very important for realistic reproduction of the dynamic range of music. Dynamic range capability without amplifier overload is facilitated by the high efficiency of the Model 02. The combination of natural reproduction, good bass response and high efficiency distinguishes the Model 02 as an exceptional value in its price class.

TECHNIQUES

Relatively small diameter drivers are employed for excellent transient response, very broad dispersion and uniform power response. The woofer is a 6½ inch unit for accurate reproduction of midrange musical detail. A high crossover is thus permitted, which is above the ear's most critical range. The bass frequencies are produced by a ported system with a fourth order Butterworth tuning to 45 Hz. The extended bass response is the result of the small woofer with a long throw voice coil in conjunction with the port loading. The tweeter is a one inch cloth dome exhibiting excellent transient and dispersion characteristic extending to 20,000 Hz.

The cabinet is hand-crafted with geniune hardwood venners with a natural, lacquered finish. This finish is designed to show off the inherent beauty of the specially selected cabined woods; Black Walnut, Brazilian Rosewood or White Oak.

Quality is carefully maintained throughout manufacture. Each driver and crossover is individually tested before final installation. After completion the system is carefully inspected and again tested to asure that it is performing to specifications. The confidence that we have in its quality and dependability is reflected in our 5 year warranty.

SPECIFICATIONS

Frequency response: flat ± 2dB 45 - 20,000 Hz

Sensitivity: 90 dB/watt-meter

Crossover frequency: 60 Hz accoustical, 2000 Hz

Recommended power: 10 - 100 watts

Enclosure type: tuned port

Size: 19 x 11 9,5 inches

Weight: 22 pounds

Cabinet options: Walnut, Rosewood, Oak

Grille: black doubleknit polyester

Warranty: 5 year limited