ADX-2400 AUDIO DISTRIBUTION SYSTEM
The Lance Design ADX-2400 series audio delay and distribution units are very powerful
tools for distributing multiple channels of high-quality audio throughout a fixed facility
or between mobile units, announce booths, and other location facilities. They've been called "the network audio
Swiss Army knife" by some of our customers.
The ADX-2400 also serves as the 'truck end' of the fiber/Ethernet announce booth system, using
the ADX-120 Announce Units. One ADX-2400 will support up to four ADX-120s, and provides remote control of
preamp gains, IFB configuratons and other functions, and status monitoring.
The ADX systems utilize the powerful Cobranet (tm) audio networking technology, developed by
Cirrus Logic. Cobranet is a well-proven industry standard method for
transmitting full-bandwidth, low-latency audio via standard Ethernet media. Numerous
other manufacturers also utilize the Cobranet technology, and the ADX-2400 systems are fully
compatible with any Cobranet hardware from any manufacturer.
A single ADX unit provides 24 channels of transmission in each direction in a compact 1
RU frame, with the audio transmission occuring over standard low-cost CAT5 cable. In addition, by
utilizing inexpensive off-the-shelf ethernet switches it's
possible to replace large numbers of audio distribution amplifiers, and heavy and
expensive multi-conductor cabling. The network provides the distribution. Fiber transmission is
also possible, using standard ethernet media converters or switches with fiber uplinks. By using gigabit Ethernet,
up to 800 channels of audio may be transmitted over a single fiber.
The audio transmitted on the Ethernet network is nothing like streaming audio over the
Web. It's full-bandwith professional audio, uncompressed, and transmitted with
very low latency and guaranteed delivery. The sample rate is 48KHz, and the
resolution is 20 bit.
In addition to the transmission functionality, the ADX units provide individually-adjustable delay
on each output; each ADX unit contains 48 channels of high-quality delay (24 on local outputs, 24 on network outputs),
which can be adjusted as needed to compensate for video processing delays, hall acoustics or other
requirements. The delay range is 0-680 milliseconds, or greater than 20 video frames
(at 30 fps).
There are two versions of the ADX-2400. The ADX-2400N has balanced analog inputs
and outputs, wired to industry-standard DB-25 female connectors. The pinout matches
standard Tascam DA-88 or Protools format. The ADX-2400D has AES digital inputs and outputs,
in the unbalanced 75-ohm BNC format. Audio placed on the network
by one type of unit may be received by either type, providing format conversion in the
process, if required.
A front panel VU meter and headphone jack provide convienent monitoring of all signals, and two built-in tone generators
make testing paths accurate and convienent.