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O‐Line
10 System wiring
10.1 General
Your O‐Line
is delivered in blocks of 4 modules ready wired in parallel. These four‐module blocks may be separated into smaller
blocks or individual modules, linked and paralleled to other blocks or modules using short link wires ‐ or series connected to
other blocks or modules using the series Connector pcb supplied with each four‐module block (see illustration below).
The Series Connector pcb also provides an input termination.
Route the connection cables under the orange safety clips to avoid crushing them when replacing the covers
This allows the installer to build an array of appropriate length (we recommend 6% of each plane to be covered for good spectral
balance) with electrical characteristics best suited to the Martin Audio power amplifier chosen.
10.2 Amplifier choices and limiter settings
The following chart shows Martin Audio power amplifier choices (indicated by dots) and Martin Audio DX1.5 or DX2 limiter
settings (in red) to obtain optimal performance from the wide range of O‐Line array sizes and patch configurations possible.
Single channels, two channel and four channel configurations are shown. Multi‐channel configurations are useful where zone
control may be required.
To avoid amplifier clipping (which dumps excessive power into the HF arrays in the form of odd‐order harmonics) it is best to
choose the highest power amplifier in the range indicated. Note that power amplifiers must be set to the industry standard
maximum voltage gain of 32dB (x40) with a correctly limited DX1.5 or DX2 system controller to comply with warranty conditions.
O‐Line User Guide V3.0
USER GUIDE
Note: White = negative, red = positive
Connections to upper and lower blocks are indicated on the circuit board
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