AMR CD-777
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AMR CD-777

Hybride CD-player

AMR CD-777
AMR CD-777
AMR CD-777
3,800.00 Prices include 21% VAT
The CD-777 Compact Disk Processor upholds the AMR tradition of developing the most musically engaging components; by taking classic and modern audio approaches that are simple in concept, but challenging in execution. The CD-777 produces emotionally stirring music reminiscent of timeless, analogue replay. With an exclusive NOS Multibit chipset, bespoke transport and premium quality valves, backed with cherry-picked components, the CD-777’s atypical approach surpasses digital source machines costing several times more. Mainstream components usually see functionality compromised. With the CD-777, rather, functionality has been taken to the extreme. The CD-777 is the first type of what AMR’s refers to as a “music hub”. Using the absolute highest quality design and execution, the CD-777 is first, a high-end CD processor. Second, able to receive a digital signal in from a PC or transport either through USB or S/P-DIF without the usual increase in jitter, it can be used as an accomplished DAC. Third, able to send out a digital signal through S/P-DIF to an external DAC or computer, it can function as an exceptionally well-designed transport source.Able to play compact disks and computer audio to the highest level, without compromise and future-proofed for many years to come, the CD-777 can only be an AMR.

Press Release 19 November 2009
The Magic of the CD-777’s Philips “Son of TDA1541A” Multi-bit Chipset AMR’s musical goals are Analogue, Musicality and Realism. At the heart of the CD-777 is the final, true Multi-bit chipset designed by Philips. Being the last Philips Multi-bit chipset (not the TDA1543 nor TDA1545A) before moving away from the Multi-bit technology, the erudite Philips engineers endowed this final chipset with a startling analogue character that is the “magic” of this chipset. In terms of design, execution and sonic performance, this Multi-bit chipset is unmatched even by modern chipset designs and is second only to the original TDA1541A. Moreover, as this Philips chipset is rare and overlooked, it has not been used in a CD source until now.

Whether the CD-777 is used standalone or as a dedicated DAC (e.g. in conjunction with a computer or a CD transport), with the most organic, commanding musical performance, it remains the strongest digital source, on a par with the best vinyl sources.

1. Philips’s Last True Multi-bit DAC: this is the first time this New Old Stock true Multibit chipset has been used in a CD source and is worthy of the title “son” to the “King of Multibit” Philips TDA1541A chipset used in the multi-award winning CD-77. Producing visceral music, it is simply stunning. With AMR’s OptiSample, the CD-777 boasts full remote control of all sampling modes: Direct Mastering I&II (AMR’s custom Non-Oversampling modes), Oversampling (2X, 4X) and Upsampling (96kHz, 192kHz).

2. OptiUSB®: Fully Optimised USB Input: with the rapid rise of computer-based audio, AMR’s proprietary solution: OptiUSB® allows the CD-777 to become a dedicated CD-Transport or Digital-To-Analogue Converter through either USB or S/PDIF without a commensurate rise in jitter which is unusual. The result is external or computer-based audio at the level of direct CD playback.

3. OptiValve®: Having the ultimate in digital execution would count for little if the analogue section was not just as dedicated. The analogue section of the CD-777 utilises AMR’s OptiValve® analogue stage with zero negative feedback and NOS 6H1n-EV valves (the “EV” designation denotes the premium version). This is a major factor behind the CD-777’s organic and “vinyl-like" performance.

4. OptiTrans®: dedicated transformers. AMR has shunned the mainstream (and more cost-effective) approach to the use “off the shelf” transformers, preferring to specify dedicated, hand-made transformers. Power supply is an integral part of circuit design and AMR’s steadfast approach yields the highest quality of power supply.

5. OptiDrive®: The OptiDrive® transport mechanism is an in-house, ground-up design. The musical synergy was made possible through using the best genuine components - the high-precision, reliable Sony K-series laser pickup mated to the musical Phillips CD-18 servo system along with a proprietary high-torque direct-drive motor. The software is bespoke by AMR to extract the maximum performance.

Transport: Top-loading proprietary AMR transport mechanism

Operation modes:
- Direct Master I; no digital or analogue filter
- Direct Master II; no digital filter, anti-sin(x)/(x) analogue filter
- Oversampling 2x
- Oversampling 4x
- Upsampling 96 kHz
- Upsampling 192 kHz

Thermionic Electron Valves amplification stage:
- 6H1n-EV fitted
- ECC88, E88CC, 7308, Cca, 6DJ8, 6922,
- 6H23n-EV optional

Digital Audio Inputs: 1 x USB interface, 1 X S/P-DIF Interface (shared)
Analogue Outputs: 1 x RCA; 1 x XLR per channel
Digital Outputs: 1 X S/P-DIF Interface
Output voltage (Digital Full Scale): > 2V
Frequency Response: 20Hz to 20 kHz +0.0, -0.5dB
Signal-to-noise ratio “A” Weighted: > 100 dB
Total Harmonic Dist. + Noise (THD+N): < 0.3%
Dynamic range: > 90 dB
Channel separation: > 90 dB
Dimensions: 45 cm W by 12 cm H by 37 cm D
Weight: 11.5 kg