ATC C1C
Centre speaker
Entry Series
Manufactured in house to exacting tolerances, ATC’s drive units are legendary for their many design innovations.
For example, all voice coils are edge-wise wound ribbon, OFHC (oxygen free high conductivity), copper wire operating in a precision machined magnetic gap.
The magnet assembly also has a hole through the pole allowing air to be vented from under the dust cap reducing air flow noise at low frequencies and at the same time increasing power handling and reliability.
Colouration is minimised by ensuring that the diaphragm assembly and drive system are extremely well damped therefore eliminating unwanted resonances.
The unique Soft Dome technology that features in the midrange driver of the SCM40 floor-standing monitor was developed by ATC in 1976.
Its arrival revolutionised professional studio monitoring.
Remarkably today, as then, it remains the only midrange device capable of giving ultimate performance.
The Super Linear Technology found in the SCM19 model is equally ground-breaking.
It has long been recognised that the detrimental effects of magnetic hysteresis is a significant factor in the production of distortion in loudspeaker drive units.
With the clever use of revolutionary materials developed for the communications industry the problem has been solved for all time in the form of ATC’s SL drive units.
They are unique not only in their ability to accurately reproduce piano but also in the precise manner they articulate the human voice.
This is hardly surprising given the reduction in third harmonic distortion by 10-15dB between 100Hz and 3KHz.
Multichannel Entry Series
The perfect upgrade path to outstanding surround sound
Centre speakers and sub designed to perfectly compliment Entry Series stereo speakers
High dynamic range enhances the excitement and impact of modern film soundtracks
Centre speakers offer outstanding vocal clarity and definition
Excellent efficiency and 8 ohm nominal impedance offer an easy amplifier load
Discrete, compact design for easy integration into a wide range of listening environments
ATC C1C Overview
- Compatible ATC products for surround sound system: SCM 7, SCM 11.
- New ATC designed and built 25mm soft dome HF unit with precision alloy wave guide.
- Twin 125mm ATC mid/bass unit with integral soft dome.
- Massive FEA optimised motor assemblies.
- In-house, hand wound precision flat wire coils.
- Flat impedance curve allowing easy load for amplifiers.
- 6 year warranty.
Specification: ATC C1C
Drivers: HF ATC 25mm Neodymium, Mid/LF 125mm
Matched Response: +/- 0.5dB
Frequency Response (-6dB): 57Hz–22kHz
Sensitivity: 86dB @ 1W @ 1metre
Max SPL: 103dB
Nominal Impedance: 8 Ohm
Recommended Power Amplifier: 75 to 300 Watts
Crossover Frequency: 2.5kHz
Cabinet Dimensions (HxWxD): 161 x 410 x 280mm / 6.34 x 16.14 x 11.02″ (grill adds 28mm depth)
Weight: 12.7kg
Brand
ATC
ATC - Loudspeakers
Formed in 1974 by Billy Woodman to manufacture custom drive units for the professional sound industry.
ATC quickly made its mark with the 12″ PA75-314 driver, a design capable of handling more power and producing less distortion at a higher sound pressure level than any other unit on the market.
1976 saw the first production of the ground-breaking SM 75-150s soft dome midrange driver, a technical tour-de-force, whose innovative up-scaled design reproduced a more uniform dispersion, wider bandwidth and much lower distortion than was thought possible at the time.
It revolutionised studio monitoring and has since become recognised as the ultimate mid-range transducer for both domestic and professional applications.
Utilising exotic materials and precision tolerances, the latest version of the SM 75-150s represents the apex of drive unit technology. It is often copied but never equalled.
The next decade witnessed the introduction of complete speaker systems and further versions of the high power PA drive units used in OEM form by many leading manufacturers and performers – Pink Floyd and Supertramp were early customers.
During this period ATC researched and developed the first active system elements, introducing the EC23 Active Crossover with built in phase correction.
A contract with Danish Radio for an active portable monitor provided the opportunity to integrate the new SCM50 and SCM100 speakers with a Tri-amp pack and electronic crossover to create the industry standard SCM50A and SCM100A, the first reliable and accurate active systems. With regular fine tuning they remain as popular today in both professional and hi-fi applications.
With regular fine tuning they remain as popular today in both professional and hi-fi applications.
Having established a market for reference quality precision-made monitors, a succession of smaller ATC speakers then evolved, ranging from SCM7s through 10s and 20s. Available in both active and passive versions, they offered elite ATC performance and reliability to many new customers.
1996 welcomed the launch of ATC’s first stand alone audiophile electronics. Both SCA2 pre-amplifier, SPA2-150 power amplifier and later the SIA2-150 were built according to ATC’s no compromise philosophy, achieving performance figures that still rank as among the best available. In their latest versions they continue to offer unrivalled precision and performance.
In the same year Billy Woodman and his research team developed an innovative new driver topology designed to eliminate the effects of magnetic hysteresis as a significant source of distortion in loudspeaker drive units. Utilising a new material from the communications industry, ATC’s Super Linear (SL) driver reduced third harmonic distortion by 10-15dB between 100Hz and 3kHz. Arguably the most significant development in transducer design in the last 15 years, SL technology epitomises ATC’s commitment to sound quality.
The SL drivers’ accuracy in reproducing piano and male vocals remains unique.
Through ATC’s commitment to multi-channel mastering and its direct involvement with leading players in the professional audio industry including Sony Music and Telarc, ATC’s products are installed at some of the world’s most prestigious multi-channel studios and auditoria.
Where ever the best is required you will find ATC.
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