Marantz UD9004 Universal Disc Player/SACD/Blue-Ray

The UD9004 will play the following formats: SACD (Stereo/Multi), BD-Video (Profile 2.0) /-ROM/-RE/BD-R, DVD-Audio/-Video/-R/-R DL/-RW/+R/+R DL/+RW, CD, HDCD, CD-R/RW and MP3 / WMA / DivX (ver.6) / AVCHD / JPEG / Kodak Picture CD. If that is not enough, the UD9004 also has a SD card slot on the front panel and can read SD data cards with MP3, WMA, AAC, WAV, JPEG, DivX, and HD/AVCHD files. The discs are handled by a transport that was custom designed by D&M for its premier players. This proprietary mechanism is exceptionally rigid, anti-magnetic, and vibration dampening and provides both noise and dust isolation from outside sources with its die-cast metal enclosure. This heavy enclosure also minimizes resonances with a double-layer top cover. All of these features help to ensure that data recovery can proceed with any disc in a stable manner with minimal interference. The better the data is to start with, the better the sound and picture can be. Even though this transport is shared with Marantz's sister companies, Denon and McIntosh, the Marantz UD9004 implements it in a different manner which sets this player apart.
Even before you touch the unit, its large seven inch wide, six and a half inches high and 16 inches deep chassis screams something special. When you pick up its 42-pound weight, the image of solidity is only further reinforced. There is much about the construction of the UD9004 that sets it apart from other disc players. Start with something as simple as the feet: the lacquered machine-milled solid copper feet were designed not only to provide a stable, non-resonant platform but also to lower the unit's center of gravity to further reduce vibration that could degrade data recovery or performance. A copper plated thick steel bottom plate forms the foundation of the Tri-box design chassis. Looking from the front, the chassis is made of three boxes: the left being the power supply box, the center for the mechanism and digital circuits and the right for analog. Each box is made of copper plated thick steel. Heavy reinforcing bars add rigidity and reduce resonances. A copper shielded power supply derived from the $7,000 SA-7S1 SACD player feeds the audio section with a separate power supply being used for video; both feed from a heavy, custom built transformer.
On the audio side of things, inside the isolated chassis compartment you will find four separate circuit boards: the first board handles the single-ended left and right front channels with signals from DAC 1. This board also has the power supply components. The second board handles the center, surround left and right channels with signals from DACs 2 and 3. The third board handles the subwoofer and surround back left and right channels and is fed by DACs 4 and 5. The last board handles the front left and right balanced outputs and is fed from DAC 6. The DACs themselves are 192 kHz/32 bit AKM model 4399s. Signal processing is performed by Analog Devices SHARC 32-bit processor which can either output the new high bit rate audio signals in their native bitstream format or can decode them internally and output them as a PCM signal. The stage-to-stage transfer of audio signals is handled by Marantz's proprietary HDAM (Hyper Dynamic Amplifier Module) and HDAM-SA2 modules, which are said to combine the benefits of integrated and discrete circuits into one module. The UD9004 truly benefits from "trickle down" technology as designers of the UD9004 looked to Marantz's reference line of products and utilized some of the components and designs from the reference line. The care taken in the selection of parts and their implementation leads to an audio signal that boasts a reported 125dB signal to noise ratio, dynamic range of 112dB and total harmonic distortion of less than .0008 percent at 1 kHz.
The UD9004's video credentials are equally impressive. The UD9004 can output 1080p, 24 frames per second, 36-bit Deep Color signals. Silicon Optix "Realta HQV" processor provides all scaling for the HDMI output. This well respected processor can upscale any HD or SD source to 1080p. Video and audio signals can be routed through separate HDMI cables to minimize any potential interference. Analog video outputs have their own processors: Anchor Bay Technologies 2010 for component signals and Anchor Bay Technologies 1012 for composite and S-video. Video DACs are Analog Devices 297 MHz units, 14 bit for component video and 12 bit for composite and S-video. A plethora of adjustments allows the picture to be tweaked to your heart's content.

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