Radial Engineering Ltd.
ChainDrive™ Distribution Amplifi er
True to the Music
®
3
GETTING STARTED
Although the ChainDrive is extremely easy to use, we suggest you follow these simple
instructions before getting started. As with all audio equipment, always ensure all levels are
turned down and equipment is turned off before making any connections or inserting the
ChainDrive into a 500 series power rack. This common practice ensures turn-on transients
will not damage more sensitive components such as tweeters. Secure the module in the 500
rack using the supplied machine screws to ensure it does not accidentally become dislodged.
To prevent damage to the rack frame do not over-tighten the mounting screws.
Most 500 series racks are equipped with balanced XLR connectors. This is augmented with
¼” TRS and D-sub connectors if using the ChainDrive in a Radial Workhorse series rack.
When you insert the ChainDrive into your 500 series rack, it will automatically route the rear
panel XLR connections to the module’s input and output. The ChainDrive follows the AES
standard with pin-2 hot (+), pin-3 cold (-). Most devices are wired this way but older vintage
equipment should be checked to confi rm compatibility with AES standards.
Connecting balanced sources
Connect a balanced line-level audio signal to the ChainDrive input using a standard XLR
patch cable. The signal is distributed to the balanced TRS ¼” outputs. The ChainDrive’s
output on the rear panel of your 500 rack is identical to output-1 on the front. The level for
both outputs is set using the level-1 volume control. All outputs are variable from infi nity to a
maximum of +24dBu.
FRONT CH.1
SAME AS REAR OUT
Made in
Canada
2
3
4
1
2
3
4
BALANCED LINE LEVEL
OUTPUTS
POWER
OMNIPORT - UNBALANCED INPUT
1
CHAIN
DRIVE
REAR OUTPUT
SAME AS FRONT CH.1
INPUT
OMNIPORT
FEED
LINK
1
OFF
OFF
CARD SLOT 1
OUTPUT
OUTPUT
INPUT
2
1
BALANCED
AUDIO SOURCE
Connect the ChainDrive’s front panel outputs to your audio devices using ¼” TRS type
cables for balanced gear or standard instrument ¼” TS cables for unbalanced, hi-impedance
audio devices. You may need to use an adapter to connect to the input of your audio devices
depending on what type of input jacks it uses. Because each output is individually buffered, it
is possible to connect to balanced and unbalanced audio devices at the same time.
Made in
Canada
2
3
4
1
2
3
4
BALANCED LINE LEVEL
OUTPUTS
POWER
OMNIPORT - UNBALANCED INPUT
1
CHAIN
DRIVE
BALANCED
¼” TRS
UNBALANCED
¼” TS
UNBALANCED
ANALOG ECHO
BALANCED
EFFECT
