Marantz CD-63 KI cd63 CD Player REFERENCE ONE Upgrade

The auction is for the modification only and does not include the Marantz CD63 KI (CD67 & CD6000) CD player which must be purchased separately.

This is a service for modifying Marantz CD players (please ask for other manufacturers & models)

What modifications we haven’t done to the CD63 over the last 10+ years have not been worth doing, ranging from costing £300 to £3000. Considering all of the upgrades we have installed nothing has impressed us more than the transformer coupled output stage (CD-OPT’s). No matter what other elaborate upgrades you throw at the CD63; such as multiple regulated supplies, multiple clock systems, the CD-OPTS’s attain a sonic performance that cannot be equalled. How does this work? The transformers eliminate the analogue output stage, HDAM’s, and all analogue power supplies. The transformers are coupled to the post DAC filter directly to a pair of WBT NextGen RCA phono sockets. The Audio Consulting coupling transformers deliver all the stunning vitality, clarity, natural warmth, of tubed output CD players, with the superb dynamic contrasts and drive of solid state.

Our new line-up of upgrades for the CD63, CD67 & CD6000 start with the coupling transformers and add additional upgrades to various performance levels and price points. The Reference One upgrade available here installs a pair of Audio Consulting Copper signal coupling transformers, replaces the OEM clock with our ultra-low phase noise clock ‘Superclock 4-S’, improves digital & analogue power supplies, installs a specially selected low noise regulator for the main 5V supply, “Super-regulators” for analogue supply, upgrades regulation bypassing for digital & analogue power supplies, upgrades the post DAC filter op-amps to LME49720, adds a pair of WBT NextGen cu RCA phono sockets. The finished upgrades costs £799.00 inclusive and delivers a performance on par with modern players costing £2.5K upwards.

The Reference One upgrade is designed with future upgrades in mind, and can be upgraded to Reference two, Reference Three models at any future point. It also provides for emerging new technologies, up-to-date performance and preservation of investment.

Top Features:-

■ Audio Consulting 99.99% OFC Signal Coupling Transformers – High-end transformers made in Switzerland, these are the best transformers we have auditioned, costly, but worth their premium over other types.

■ Superclock 4-S Ultra-low Phase Noise Clock – The finest aftermarket clock in its class! Discrete, pure sine-wave analogue oscillator, multiple regulated power supplies with MAX6126 voltage reference for lowest noise at the critical 0.1 – 10 Hz, dual screened RF stage to eliminate RFI/EMI noise.

■ Super-regulators for +/- analogue stage (op-amps) – This version 3 op-amp is the quietest regulator available in a 3-pin package and packs 23 discrete components on to a 4-layer Gold plated PCB.

■ LME49720 Post DAC Filter – The optimum operational amplifier for filtering SM5872 DAC. The LME49720 has extremely low noise, low distortion and high speed and provide stellar filtering for the DAC output. 

■ WBT NextGen cu RCA Phono Plugs – These RCA’s give deliver the best sound we have heard from any RCA connector and provide a vast improvement on the cheap plastic OEM phono’s.

Digital Metamorphisis

If you are thinking that these upgrades result in a few subtle enhancements then think again, the audible gains with our Reference One upgrade rewrites the book on what a sub £1K CD player is capable of.  Where the modified CD63 really scores is in its ability to deliver a lifelike uncompressed sound that sounds like matches a good vinyl set-up. The music is accurate, detailed, controlled with a natural flow and free of digital glare, edginess and upper mid-band hardness. The sound-stage gives a true sense of acoustic space, both its elements of depth, width and height, with precise placement. Our modified CD-63 is highly addictive and continues to impress the more you listen. If you own a CD-63 KI and are on the path the upgrade than this modification is fiercely recommended.

How to Order

The Marantz CD-63 (CD-67 & CD-6000) Reference One upgrade is supplied & installed by Audiocom for £799.00 inclusive (excludes carriage). Once you have purchased the upgrade please contact us to schedule and book your CD63 for the installation.