When a pair of the XD700/5’s main channels are bridged, they will deliver 200W x 1 into a 4 ohm load or 150W x 1 into an 8 ohm load. Operating a pair of bridged channels into a load lower than 4 ohms is not recommended.
A bridged pair of channels requires that both channels in the pair receive input. You must connect the mono or stereo source signal to both the left and right inputs the bridged channel pair. Connection of only one input will result in reduced power output, increased distortion and can cause the amplifier to overheat. Do not do this!
When a pair of the XD700/5’s main channels are operating in bridged mode, the output will be in mono (only one channel). This mono channel can contain only right channel information, only left channel information, or the sum of the signals from right and left input channels. In order to achieve one of these options, configure the inputs to that pair of channels in one of these two ways:
1)Left Channel Only or Right Channel Only Information: If you wish to send a
2)Left + Right Channel Information: When bridged and fed by a stereo source signal, a bridged pair of the XD700/5’s channels will automatically combine the left and right input signals into a summed mono (left + right) input signal.
SUBWOOFER OUTPUTS
The XD700/5’s single subwoofer channel is designed to deliver power into subwoofer loads equal to or greater than 2 ohms. It is rated for 300W into 2 ohms, 250W into 3 ohms and 200W into 4 ohms (Continuous Power, RMS Method).
Subwoofer loads below 2 ohms nominal are not recommended and may cause the amplifier
to initiate a protection mode which reduces power output.
The XD700/5’s subwoofer outputs are designed to accept 16 AWG - 8 AWG wire. To connect the subwoofer wires to the amplifier, first back out the set screws on the top of the terminal block, using the supplied 2.5 mm hex wrench. Strip 1/2 inch (12 mm) of insulation from the end of each wire and insert the bare wire into the terminal block, seating it firmly so that no bare wire is exposed. While holding the wire in place, tighten the set screw firmly, taking care not to strip the head of the screw.
You will notice that there are two “+” positive connections and two
The two positive and two negative connections are connected in parallel inside the amplifier They are not stereo outputs. Connecting two subwoofers, each to one set of positive and negative terminals, will result in a parallel subwoofer connection. If only connecting one pair of subwoofer wires, it is not necessary to use both sets of connections.
10 JL Audio - XD700/5 Owner’s Manual
