Paul J. Cox Systems Introduces Active DI Units
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| 8-Channel Active DI |
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| Three 24-Channel Active DIs |
June 17, 2003Paul J. Cox Systems has launched a range
of electronically balanced active Direct Inject systems. Previously
manufactured as integrated components of custom studio build or retrofit
projects over the last five years, the DI systems are now being made
generally available.
Owner and chief design engineer Paul J. Cox explains, "We began building and
installing these units into our studio systems many years ago. The demand
from numerous artists, producers and engineers who had used our studios and
loved the sound of the DI units prompted us to make them available as user
equipment." Paul J. Cox Active DI Systems are installed at Westlake Audio,
Mike Post Productions, Frontpage Recorders, the Mix Room, Firehouse and many
other prestigious recording and post production facilities.
The active DI systems may be used to transform low-level, noisy, unbalanced
audio signals such as keyboard, midi module, drum machine or sequencer
outputs into much more desirable clean balanced +4dB signals, with
improvements to the sonic quality. Offering a frequency response that is
flat from 10Hz to 60kHz (+/-0.1dB) and an average -85dBu noise floor, Paul
J. Cox Active DI Systems feature 12dB of additional gain (and may be
specified with up to 20dB), and provide 28dB of headroom.
The DI systems are available in a variety of configurations to suit all
applications, from standalone 8-channel to customized rack-mounting
multi-channel units with integrated patching capabilities, front or rear
panel connectors, ground lift switching and custom pinout wiring. Units can
be supplied with balanced inputs and outputs for integration with balanced
buffer or distribution systems.
The standard 24-channel DI unit occupies a single rack space and is 8 inches
deep. Front panel 1/4-inch unbalanced inputs, ground lift switches and rear
panel 90-pin Elco balanced outputs wired to European/Amek, Harp or custom
pinout requirements are included.
For permanent installation with consoles intolerant to unbalanced inputs,
rear panel unbalanced inputs and balanced outputs on Tascam standard D-sub
or 56- or 90-pin Elco connectors can be supplied. That allows the direct
connection of unbalanced external equipment with balanced outputs to console
user patchpoints, line or mic level inputs. All rack-mount DI systems are
supplied with an outboard +/- 18.65v linear power supply module that can run
up to five 24-channel DI units.
Eight-channel systems are available either as standalone floor or
counter-top units with top-mounted 1/4-inch inputs, ground lift switches and
multipin outputs, or as a wall-mount or permanently installed unit
incorporating multipin connectors for inputs and outputs. Standalone
8-channel DI units include an integral power supply.
About Paul J. Cox Systems
Established in 1986, Paul J. Cox Systems offers studio technical design
consultation, studio construction technical project management and equipment
integration and on-site installation services. Among the custom services
available is studio system cable, panel metalwork and patchbay system
fabrication. Studio technical servicing, recording console installation and
commissioning, and console upgrades and modifications are also offered by
the Solid State Logic-approved company.
For more information, visit their web site at www.pauljcox.com. | 
