Apogee Introduces the PSX-100 2-Channel
Combination 24/96 A/D-D/A
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January 28, 1999Apogee is following its highly successful 8-channel AD8000 with a 2-channel
conversion system in a compact 1U rack-mount package: the PSX-100. It
is also the first Apogee converter to offer 88.2/96kHz sampling at 24-bit
resolution.
The PSX-100 offers many of the features of the AD-8000, with built-in
ADAT, TDIF, S/PDIF coax and optical, plus multiple AES interfaces. Other
features include Apogee's proprietary UV22 word-length reduction system
(which can be applied to either the A/D or the D/A) and SoftLimit for
maximum level without overs. An auxiliary output allows a full-resolution
output to be derived even when UV22 is in use on the main interfaces.
The wide range of standard interfaces provided and the multiple AES I/O
ports allow the unit to be used for signal distribution and format conversion
as well as for A/D and D/A applications.
Built-in Apogee Bit-Splitting (ABS) modes allow the two-channel 24-bit
signal to be recorded/replayed using multiple tracks of a 16-bit 44.1/48kHz
sampling recorder, via ADAT, TDIF or AES/EBIJ. You can even record stereo
at 96kHz sampling on your existing 16-bit 8-track! An optional video sync
card allows the PSX to lock to NTSC/PAL color and monochrome video.
The unit matches the AD-8000 in appearance, with a distinctive purple
front panel and large silver buttons. A multi-voltage linear power supply
is incorporated and virtually the entire rear panel is occupied by interface
connectors including two 2-ch AES inputs and outputs. Both connectors
are used for 96kHz operation; at 44.1/48 kHz, they operate independently.
The PSX-100 includes completely separate A/D and D/A sections which may
be clocked separately and can be configured to work together in different
ways. The digital inputs and the A/D output are fed into a routing section
which sends signals to the D/A and Aux output or to the main digital outputs,
according to which of the three basic operating modes is selected.
The default is Confidence Monitor mode, in which the A/D and D/A are
independently clocked (and can even run at different sample rates). The
output of the A/D is available at all the digital outputs, and the D/A
can receive its signal from any of the available digital inputs. The bargraph
metering can be switched between A/D and D/A. In this mode, there are
two separate signal paths through the unit, while the other modes utilize
a single path.
Digital Copy mode takes the selected digital input and provides it to
all the PSX-100's outputs, digital and analog. Both clocks in this mode
are synchronized to the digital input. This mode is ideal for format conversion
as well as offering the maximum D/A flexibility.
In Analog Monitor mode, the A/D is fed to all the system outputs and
to the D/A. The main clock is used as the reference (locked to crystal
or an external digital source), while the auxiliary clock is slaved to
it.
The PSX-100 will be available at the end of January 1999 and has a list
price of $2995. For more information, visit Apogee at www.apogeedigital.com. | 
