7
Connecting Two Amplifiers - Bridge Mode
The XPR510D features an Amplifier Bridge mode, where two XPR510D amplifiers can be connected
together. When two XPR510D amplifiers are connected together, the power from both amplifiers is
combined.
Signal Connections
Speaker Connections
Power Connections
Remote Bass Control
• Connect RCA cables from the head unit to the LINE INPUTS of Amplifier #1.
• Connect a single RCA cable from the BRIDGE OUT of Amplifier #1 to the
BRIDGE IN of Amplifier #2.
• Connect one of the positive (+) speaker outputs from Amplifier #1 to the
positive speaker terminal of the subwoofer.
• Connect one of the positive (+) speaker outputs from Amplifer #2 to the
negative speaker terminal of the subwoofer.
• Connect a single speaker wire between the negative speaker terminals of
Amplifier #1 and Amplifier #2.
• Note
: When connecting one subwoofer, the load should not be lower than
2 ohms.
• Connect the power connections of both amplifiers normally, as described
on page 6. It is recommended to use 0 gauge (or larger) power and ground
wire, with distribution blocks to supply power for both amplifiers.
• To use the remote bass control when connecting two amplifiers together,
adjust the gain on both amplifiers to full maximum. Connect one remote
bass control to Amplifier #1.
Connecting Two or More Subwoofers
When connecting two subwoofers: (4 ohm minimum per sub)
• Connect the first subwoofer to the first set of positive speaker output
terminals.
• Connect the second subwoofer to the second set of positive speaker
output terminals.
• Connect speaker wire between the negative terminals of each
amplifier.
Polarity
: the positive speaker output of Amplifier #1 always should
always be connected to the positive terminal of the subwoofer.
When connecting more than two subwoofers, use parallel and series
connections to connect the subwoofers together and to the amplifiers.
Do not connect a load lower than 4 ohms per positive terminal on the
amplifier. Always measure the impedance using a multimeter.
(+)
(-)
(+)
(-)
4 OHM MINIMUM
4 OHM MINIMUM
(+)
(-)
2 OHM MINIMUM
Amplifier 1
Amplifier 1
Amplifier 2
Amplifier 2
Signal Connections
Speaker Connections
Amplifier 1
Amplifier 1
Amplifier 2
Amplifier 2
