CEC was established in 1954 and was the first company to produce analog turntables in Japan. The first CEC CD player was introduced in 1983. In 1991, CEC introduced the first belt drive CD transport, the TL1. A technology for which CEC holds worldwide patent rights. CEC’s philosophy is to create high performance audio products of high quality and reliability. CEC is an international company with offices in Japan and Germany.
Table of contents
Reading the Data on a CD
The music data on a CD is recorded at a Constant Linear Velocity (CLV). In order to read signals from a music CD at a constant linear velocity, the rotation speed must be gradually reduced as the laser pickup moves to the outer edge of the CD. This change in rotation speed of the CD turntable is controlled by the drive motor. Ordinary CD players and transports employ a direct drive system in which a motor is placed directly below the disc turntable. The turntable is directly driven by the motor shaft. However, in order to obtain controlled and stable rotation, it is necessary to use a relatively large motor. The large motor makes it impossible to avoid signal distortion caused by vibration and electromagnetic noise generated by the motor.
CEC Single Belt Drive CD Turntable Mechanism
The single belt drive CD mechanism reduces the effects of vibration and electromagnetic noise by moving the motor away from the disc rotation axis and connecting it with a belt. The CEC single belt drive mechanism employs a groundbreaking design that allows the condition of the disc drive rubber belt to be visually checked at any time. The belt can be replaced by the owner as needed, just like many record players. You can fully enjoy your favorite CDs without worrying about changing belts.
CEC uses a low torque motor which drives the spindle of the CD turntable. A stabilizer secures the CD disc to the turntable. The spindle motor is isolated mechanically from the spindle. The spindle is coupled only by a precision rubber belt to the motor. The spindle bearing centers the disc providing excellent vibration absorption characteristics. The drive mechanism is isolated on a dual suspension system with high noise and vibration absorption. The result is a more musical experience.
CEC Dual Belt Drive Mechanism
Music reproduction of compact disc reached a new summit with the CEC TL2N dual belt CD transport. The dual belt drive system minimizes the effects of mechanical vibration and electromagnetic noise from the motors. The dual belt drive design allows the motor driving the spindle and the laser pickup feed motor to be located away from the spindle and the laser pickup. This minimizes mechanical noise and electrical interference.
In the picture you can see the motors are mounted on a different plate from the turntable and the laser pickup. You can see the turntable and the laser pickup plate is mounted with rubber suspension parts. The rubber belts are the only direct connection to the turntable and laser pickup drive. The CEC TL0 3.0 uses the dual belt drive concept.
CEC Difference Conclusion
With each innovation the mechanical and electromagnetic noise which effects the quality and accuracy of the data read there is an increase in the quality of the music reproduction. This is easily noticed by more defined bass, clear highs, and a more musical mid-range. With each step distortion is lower, mechanical and electromagnetic noise is lower, jitter is lower than the direct drive competition. There is more, SUPPERLINK.
The SUPERLINK Difference
The SPDIF (Sony Philips Digital Inter Face) and AES/EBU(Audio Engineering Society/European Broadcasting Union) systems are commonly used in coaxial digital outputs and optical outputs. SPDIF and AES/EBU both transmit the music and clock signals through the same cable, and thus are prone to jitter effects caused by the signals interfering with each other.
SUPPERLINK is CEC’s proprietary signal interconnection solution. It uses four 75 Ohm BNC cables to make the connection between transports and D/A converters. The four signal are left/right clock data, bit clock data, digital audio music and master clock. The master clock signal is generated inside the DAC and sent to the CD-transport. Combining this digital data transfer technique with our belt-drive system, we have created audio reproduction free from motor noise.
CEC’s SUPERLINK system transmits these signals separately with multiple cables, requiring no encoding/decoding process for data transmission. The clock signals from the D/A converter’s master clock generator are used to achieve synchronization of the transport and the D/A converter. This It minimizes deterioration of the music signal during transmission. SUPERLINK is on TL 2N, TL0 3.0, DA0 3.0, and the new DA SL. An external master clock input is available to further enhance the performance.
MCK(Master Clock): The CD transport receives the master clock signal from the D/A converter through this line, and functions as a slave to the DA converter. This enables complete synchronization of transport of audio data.
BCK(Bit Clock): Sends bitclock signals, required for digital data bit identification(e.g. sampling frequency) or signal readout, from the CD transport to the D/A converter.
LRCK(L/R Clock): Sends left/right identification clock signals from the CD transport to the D/A converter.
DATA: Sends audio data from the CD transport to the DA converter.
Warranty for CEC New Products
The CEC warranty is 2 years parts and labor. CEC reserves the right to repair or replace a product and only new products are covered by warranty. Warranty is not transferable. Warranty does not cover damage caused by the user. In the America’s warranty service is provided by Audio Union. For warranty service contact email@example.com or use the contact form.
Service or Repair
CEC products are serviced by Audio Union in the America’s. Audio Union only distributes and services 120 Volt CEC products, see table below. For more information contact firstname.lastname@example.org or use the contact form. Belts and service parts can be ordered using the contact form. Please note: 100 volt products are not for export from Japan.
Table of EAN/JAN codes
|CD5||Silver||100 V||49 92287 81900 9|
|120 V||49 92287 81930 6|
|230 V||49 92287 81940 5|
|Black||100 V||49 92287 81901 6|
|120 V||49 92287 81931 3|
|230 V||49 92287 81941 2|
|TL5||Silver||100 V||49 92287 82000 5|
|120 V||49 92287 82030 2|
|230 V||49 92287 82040 1|
|Black||100 V||49 92287 82001 2|
|120 V||49 92287 82031 9|
|230 V||49 92287 82041 8|
|TL3 3.0||Silver||100 V||49 92287 82100 2|
|Black||100 V||49 92287 82101 9|
|Tl2N||Silver||120 V||49 92287 82130 9|
|230 V||49 92287 82140 8|
|Black||120 V||49 92287 82131 6|
|230 V||49 92287 82141 5|
|DA5||Silver||100 V||49 92287 15500 8|
|120 V||49 92287 15530 5|
|230 V||49 92287 15540 4|
|Black||100 V||49 92287 15501 5|
|120 V||49 92287 15531 2|
|230 V||49 92287 15541 1|
|DA3EX||Silver||100 V||49 92287 10200 2|
|Black||100 V||49 92287 10201 9|
|DA SL||Silver||120 V||49 92287 10230 9|
|230 V||49 92287 10240 8|
|Black||120 V||49 92287 10231 6|
|230 V||49 92287 10241 5|