Martin Audio XE300, Руководство пользователя

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XE300/XE500 User Guide V1.0
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XE300/XE500
USER GUIDE
Amplifier Output Connections
The iK42 amplifier is fitted with one Speakon™ connector per amplifier channel. The appropriate
conductor terminations are shown below and on the rear panel of the unit.
Additionally, the channel 2 output is duplicated on the Speakon™ connector for amplifier channel
1 for Bi-Amp wiring. Similarly, the channel 4 output is duplicated on the Speakon™ connector
for amplifier channel 3. This can be useful for making a connection to two loudspeakers with
one 4-core cable (i.e., Bi-Amp).
On the iK81 model, all outputs are Bi-Amp; each Speakon™ connector carries two amplifier
outputs – Channels 1 & 2, Channels 3 & 4, Channels 5 & 6 and Channels 7 & 8.
In addition, the channel 1 or channel 3 connector (all the Speakon™ connectors on the iK81
model) can also be used if the pair of amplifier channels is being operated in bridged mode.
More than one speaker can be connected to each channel provided the total impedance per
channel is not less than
2 ohms. In bridged mode the minimum total impedance should not be
less than
4 ohms.
Load Matching
Each output of the device can be optimised to drive either a low impedance load (e.g., 2, 4 or
8 ohms), or a Constant Voltage (C.V.) using the Load parameter in the Output menu. There are
several C.V. settings (25 V, 70 V and 100 V Line) which determine the maximum RMS voltage
that the amplifier will produce. Select the one which is appropriate for the installation. A number
of low impedance settings (depending on the model) are also available. Although it is not critical
that this setting matches the impedance of the connected load, this will maximise the power
that is available for the load.