|Marantz Project D-1
||* 500-set limited production
The digital analog converter developed combining the famous element "TDA1541AS2
(double crown)" of a multiple bit, and the newest circuitry technology
ÁÎ of multiple bit DAC IC and Philips "TDA1541AS2" (double crown) are
the real 16-bit dual DAC chips which guaranteed the 16-bit precision in the
large temperature span. In order to demonstrate the potential which this high
precision IC chip has to the maximum extent,The outstanding D-A conversion, such
as realizing a balance operation in one chip, is realized by developing advanced
original DSP and constituting 8fs digital filter, a demphasis, an invert
circuitry, and new feature "scaling."
The I/V converter part and the
balance amplifier part are constituted from a Non-NFB circuit, and the diving of
the digital noise is prevented by banishing the feedback loop. Moreover, the
sizable cut also of the internal transmit Jitter resulting from the RF property
of a power-source part and supplying speed is carried out by adoption of the
Non-NFB power supply with temperature compensation covering the audio frequency
band at large.
The scaling controller which uses original DSP is carried so that an operation
of a DA converter may become always proper.
type of the sub- excellent in a phase response and transient response nature is
used for an analog post light filter.
The power-source part has
composition which combined the mass low-impedance coil power transformer of
250VA classes, high-speed 10A first recovery diode, and the low scaling-factor
foil low-impedance chemicon that carried out parallel connection.
gilding double-sided printed circuit of 135 microns of single-sided totals
Copper-foil thickness is adopted as 35 microns of surface layers, the
four-layers substrate of 70 microns of internal-layers Copper foil, and an
analog / power supply system circuit substrate at the digital system circuit
The rigid structure vibration-proof chassis structure by the combination of the side panel, rear panel, and top panel using thickness aluminum is adopted very much with the 3.2mm thickness copper plating steel plate bottom chassis. Moreover, the leg has adopted the three-position shorted to ground by the weight insulator made from a sintered alloy.
(BNC), light, three kinds of seven digital inputs of a balance, and a coaxial
and the digital output of one light each are carried.
A digital output can
be turned on and off.
The sampling frequency serves as 32kHz, 44.1kHz, and a 48kHz automatic switch.
Analog output carries the XLR balance
output and the RCA imbalanced output of Normal (right phase)/invert (negative
||Digital analog converter
||5Hz-15kHz}0.5dB (fs = 32kHz)
5Hz-20kHz}0.5dB (fs = 44.1kHz)
5Hz-22kHz}0.5dB (fs = 48kHz)
||98dB or more
||Coaxial: 0.5 Vp-p/75ohm
Balanced: Three to 7 Vp-p/110ohm
||Coaxial: 0.5 Vp-p/75ohm
|The maximum Dimensions
||Width 440x height 134x depth of 364mm