Foreword - MSB Technology ADD-1 Owner's Manual

T
ROUBLESHOOTING
Symptom Solution
No LEDs Light Check power supply connection
Check voltage of power supply (120V-240V)
No Digital Output Digital output is present if optical output shows
red light
No lock from DAC Check Digital connections
Check operation of DAC or processor with
another source
Confirm lock on receiver
Check sample frequency capability of receiver
(44.1 kHz should always work)
No sound Check input source is active
Check proper input is selected
Check sample frequency capability of receiver
(44.1 kHz should always work)
Level too Low Input level is too low. Increase input gain.
Output is distorted Input level is too high. Reduce input gain.
Check input level specifications for each input
type.
Warranty
All MSB products carry a one year warranty. No returns accepted with out a
Return Authorization Number (RMA). Upon receipt, MSB will repair or replace
any defective product. All product shipped FOB La Honda. Shipping damage is
the responsibility of the consignee.
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F
OREWORD
The MSB Audio Director and Digitizer (ADD) is optimized in every way
for the very highest quality digital to analog conversion, and comprises the
latest 96k/24-bit A/D technology. The eight line-level analog inputs are
selected automatically on a priority basis. The highest priority input that is
active will be converted to digital and sent to the outputs. The phono input
is selected from the front panel for minimum cross talk and degradation.
Differential analog architecture is used with high-quality, high-speed op-
erational amplifiers for excellent noise rejection. DC servos carefully regu-
late any signal offset. Sampling frequency can also be selected from the
front panel, allowing optimum recording on a range of media.
The Crystal CS5396 is one of the finest professional A/D chips avail-
able. It uses a 7th order tri-level delta-sigma modulator followed by digital
filtering and decimation, for an unbelievable 120 dB signal-to-noise ratio.
24-bit resolution means that the ADD provides 256 times more resolution
than a 16 bit A/D.
Just as a transport sets the jitter performance for the entire playback sys-
tem, the A/D clock jitter during sampling defines the ultimate performance
of the recording. We generate each clock frequency with separate high
accuracy oscillators. The Crystal 96K digital output transmitter formats
both consumer and professional AES/EBU digital outputs, driven by low
skew, low impedance differential drivers. Coaxial, optical and balanced
XLR connectors are provided for your convenience.
The MSB ADD is upgradable for future digital formats. As copy protec-
tion and a plethora of new audio formats are being proposed, the MSB
ADD offers seamless upgradability with an upgrade header that allows a
new decoding card to be developed for each new format when it emerges.
The MSB Virtual surround processor can also be installed in this upgrade
slot. This will allow Prologic encoded audio to be digitally transformed into
virtual 3D surround. The virtual 3D encoded audio can then be played
back on any DAC and 2-channel setup, providing a "virtual surround" en-
vironment and a expanded soundstage of even normal stereo V3D en-
coded music.
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