ChainDrive™ Distribution Amplifi er
True to the Music
®
Radial Engineering Ltd.
4
Connecting unbalanced sources
The ChainDrive can distribute unbalanced line-level signals from electronic instruments like
keyboards and samplers. To interface an unbalanced audio device to the ChainDrive’s input
an adapter cable is needed that terminates in a 3-pin male XLR connector where pin-1 is
ground, pin-2 is hot, and pin-3 is left open.
1
2
3
TIP
SLEEVE
SHIELD
UNBALANCED SOURCE
TIP= +SIGNAL
SLEEVE= GROUND
CHAINDRIVE INPUT
PIN2= +SIGNAL
PIN3= - (OPEN)
PIN1= GROUND
Once connected, the ChainDrive distributes unbalanced signals via the four front panel
¼” outputs. Connect the outputs using standard ¼” instrument cables. The output level is
variable from infi nity to +18dBu with an unbalanced input.
Connecting stereo sources
The ChainDrive can also be used to distribute an unbalanced stereo signal to the four stereo
outputs. To interface an unbalanced stereo device to the ChainDrive’s input an adapter cable
is needed that terminates in a 3-pin male XLR connector where pin-1 is ground, pin-2 is the
left channel, and pin-3 is right channel.
1
2
3
SHIELD
RING
TIP
SLEEVE
STEREO SOURCE DEVICE
TIP= LEFT CHANNEL
RING= RIGHT CHANNEL
SLEEVE= GROUND
CHAINDRIVE INPUT
PIN2= LEFT CHANNEL
PIN3= RIGHT CHANNEL
PIN1= GROUND
1
2
3
TIP
SLEEVE
TIP
SLEEVE
SHIELD
STEREO SOURCE DEVICE
LEFT CHANNEL
STEREO SOURCE DEVICE
RIGHT CHANNEL
CHAINDRIVE INPUT
PIN2= LEFT CHANNEL
PIN3= RIGHT CHANNEL
PIN1= GROUND
Connecting stereo outputs
A stereo adapter cable is used to interface the ChainDrive’s front panel ¼” TRS outputs
to the inputs of your unbalanced stereo devices. Here, the ChainDrive’s ¼” TRS outputs
are confi gured like stereo headphones where the tip is the left channel, the ring is the right
channel, and the sleeve is a common ground.
RING
TIP
SLEEVE
RING
TIP
SLEEVE
TIP
SLEEVE
TIP
SLEEVE
SHIELD
RING
TIP
SLEEVE
SHIELD
LEFT CHANNEL
RIGHT CHANNEL
CHAINDRIVE OUTPUT
TIP= LEFT CHANNEL
RING= RIGHT CHANNEL
SLEEVE= GROUND
CHAINDRIVE OUTPUT
TIP= LEFT CHANNEL
RING= RIGHT CHANNEL
SLEEVE= GROUND
STEREO
TIP= LEFT CHANNEL
RING= RIGHT CHANNEL
SLEEVE= GROUND
