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고객분이 사용중이시던 제품으로
오르페우스 헤리티지 CDT + DAC 로 업그레이드하시면서 저희에게 판매대행으로 들어온 제품입니다..
외관 기스하나없이 상태양호하며 픽업상태도 양호합니다. 단 리모컨은 969 순정리모컨은 아니나 사용하는데 불편함은 없습니다..
벨트드라이브방식의 CDT제품이며 그시대 최고의 소스기라 불리던 제품입니다.
제품문의 02-499-3627
Our world-renowned 969 Reference Belt-Drive CD Transport in combination with the Reference D/A Converter 970 represents the top of the line in our digital playback systems. With state of the art technology, Burmester Audiosysteme has built a CD-transport which is cutting edge in musicality and natural sound reproduction from CD. The 969 was awarded as simply the best CD-transport from various magazines all around the world.
Burmester Audiosysteme is the high-end company that conceived the world's first belt-drive CD transport (the Burmester 916) and introduced it during the Berlin Consumer Electronics Show 1991. It now presents its masterpiece, the Reference CD Transport 969. It is based on the Philips CDM-9 PRO laser technology and manufactured in Berlin. For the first time, the 969 completely eliminates all weaknesses of digital pickup systems which, up to now, audiophiles had to work around with expensive aftermarket add-ons.
By using a belt drive and triple mechanical de-coupling of the drive unit, the 969 insulates the sampling process from all external interferences. Furthermore, a newly developed high-precision oscillator with minimal phase noise and high thermal stability provides a digital output signal with extremely low jitter. The oscillator functions as the system clock and also as the low-jitter synchronous clock. The result is a perfect digital replication of the analog waveshape. Any remaining differences between analog and digital sound reproduction are beyond human hearing capabilities. Audio reviewers in Germany, America and Asia concluded that, for the first time, the best digital playback system sounds as musically involving and convincing as the best analog system! Sound quality is increased further with the use of the Burmester Reference D/A Converter 970 which clock-links the 969 to the master clock of the 970.
Why a belt-drive system?
Almost all available CD transports on the world market use direct-drive systems, i.e. CD platter, spindle and motor are a firmly fixed unit. Furthermore, most motors are cheesy little things running on cheap bearings and cannot guarantee a smooth rotation. Motor cogging as well as vibrations and mechanical resonance are transmitted directly to the platter and, hence, to the CD. This renders a faultless sampling by the laser pickup impossible. As a result, small parts of the signal are lost. These are the parts that the human ear translates as spatial image, focus and musical accuracy. Therefore, digital playback was criticized as "two-dimensional" and "synthetic." Until now!
Since, for obvious reasons, direct-drive systems never made it in analog turntables. Dieter Burmester developed in 1990 the belt-drive principle for CD transports and designed in cooperation with CEC of Japan the first belt-driven CD-transport in 1991 (1989-1992 CEC was the japanese distributor for Burmester). The latest belt-drive mechanisms of the Reference 969 and Top-Line 979 are now produced in house by Burmester Audiosysteme.
The advantages of a belt-driven transport are, on the one hand, that the digital pickup is completely de-coupled from interferences from the motor drive. On the other hand, it also promotes the use of beefier motors and spindles as well as heavy stabilizers for fly-wheel effect. The CD platter of the 969 sits on a 4 mm-thick spindle which rotates in a precision bearing with no more than three thousandths of a millimeter play (the bearing in the CD platter shows the same play as the spindle). This guarantees an absolutely smooth rotation without cogging, bearing play or vibrations and resonance. Hence, the sampling process is not subject to any mechanical jitter.
Why a triple-chamber housing system?
The drive unit floats insulated in a triple-chamber housing system to further de-couple it from mechanical and acoustical interferences such as footfall and sound waves from the speakers. The innerhousing of the drive unit is made of 10 mm-thick aluminum plates and weighs 5.6 lbs (!). It floats within a second soundproof chamber made also of 10 mm aluminum plates on a special foam rubber suspension with high internal damping properties. To further increase the 969's interference immunity, the spike feet of the outer housing rest on a carbon fiber suspension as part of its own base. Overall, the 969 weighs app. 58.5 lbs.
Is changing rotational speed compatible with belt drive?
In contrast to analog LPs which rotate during playback in constant angular velocity, the CD must rotate in constant line velocity. That means that in order to obtain a steady data stream during the sampling process, the rotational speed of the CD must be continually reduced since the circumference of the 'grooves' that the pickup traces increases from the inside to the outside.
Ensuring the correct rotational speed at any point of the sampling process has been the greatest challenge in designing a belt-driven CD transport. It was met by developing a highly sophisticated microprocessor-based control unit. Its calculations take into account all variables of the drive unit such as motor, belt, precision spindle and stabilizer and guarantees the absolutely smooth rotation of the CD. Besides the low torque motor, a top Swiss product manufactured to our specifications, the precision spindle and bearing are of a level of quality that no other standard CD transport approaches.
The 969's features in brief:
The modular design of the 969 makes it futureproof for new digital formats to come (who can predict which format will arrive and if it will stay?)
Burmester Reference Belt-drive CD transport is based on the legendary Phillips CDM-9 PRO laser technology (Yes, we do have sufficient stock!)
Mechanical belt-drive drive unit is hand-crafted by Burmester Audiosysteme in Berlin.
Microprocessor-controlled drive unit consisting of a highest-quality Swiss-made low-torque DC motor, CD platter assembled on a 4 mm thick spindle rotating on a precision bearing plus a stabilizer for fly-wheel effect. It guarantees smooth rotation at any point of the sampling process.
Total interference immunity through heavy triple-chamber design and a special housing base for additional mechanical de-coupling.
Almost air-tight and sound-proof closure of the top-loading CD chamber by a precision sliding cover plate.
Proprietary oscillator with minimal phase noise and a high thermal stability is located next to the digital output circuitry. This oscillator provides the system clock of the 969 and generates the low-jitter clock pulse synchronous to the digital output. This oscillator is by-passed when the 969 is clock-linked to the master clock of the 970 Reference D/A Converter.
To generate an output signal with minimal jitter, each slope of the output signal is stored and then released in synch with the low-jitter clock after a delay of 20 nano seconds.
Eight digital outputs, three of which sport ultra-fast line drivers (slew rate > 6000 volts/µsec.) which control the digital cable directly without customary capacitors and transformers. Forgoing the 75 ohms source resistance provides a low-resistance digital signal at these outputs.
Power supply with an integrated AC filter through a low-leakage 50 watts torodial transformer. Power for the various components is supplied by a central distribution system that sports a special DC filter for mutual de-coupling. These filters have minimal insertion resistance and reach 70 dB damping already at 5 MHz.
Overall filter capacitance of the power supply is 60,000µF.
EMI (Electro Magnetic Interference)-suppression filters in every stage.
An additional clock input for the latest 970 or 980 D/A Converters from Burmester which have their own clock directly at the converter module.
Housing available in silver or black anodized. Plaques and screws available in gold-plated.
Remote control supplied as standard.
Chrome front plate available in 17.7 or 19 in. width.
Spiked feet may be set directly on the base or rest on supplied carbon-fiber suspension plates for extra mechanical de-coupling on a proprietary aluminum base.
Gross weight incl. packaging app. 89 lbs.
Outputs:
Unbalanced digital RCA output with ultra-low impedance.
2 Unbalanced digital RCA output with 75 ohms impedance.
AES-EBU standard balanced digital XLR output with 110 ohms impedance.
(Polarity: 1=Ground (shield); 2=Positive, 3=Negative)
Balanced digital RCA output with 75 ohms impedance, transformer-coupled.
Optical digital output for broadband glasfiber cables with ST standard plugs (AT&T).
2 Optical digital output for glasfiber cables with Tos-Link plugs.
All outputs have their own driver stages. They may all be used simultaneously without any loss of quality.
Digital Input:
BNC terminal for the clock pulse input of Burmester D/A converters 970 or 980 designed for the purpose of exactly synchronising the clock pulse rate between CD-transport and D/A converter.
Initial reviewers had this to say:
"?reminds us very much of the sound of vinyl records played back on one of these ultimate turntables."
"AUDIO has been totally convinced by the Burmester 969 Transport. The 969 will be the international breakthrough for the Berlin manufacturer, our word on it," says the leading german High-End magazine AUDIO's Joachim Pfeiffer.
Weight: 28.5 kg (approx. 58 lbs.)
Dimensions (W x H x D):
450 x 170 x 340 mm
17.7 x 6.7 x 13.4 inches |
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