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SPL Series Wiring Information 
Connecting Multiple SPL cabinets

 
Audio and AC Power link from one SPL to another

Audio In (Blue) from mixing console

Input (Red) from AC Power

Audio link (Blue) to another SPL

AC Power link (Red) to another SPL (Maximum 4)

The rear panel of the SPL series of cabinets have both audio and AC power loop out connectors.
This unique combination lets you set up the cabling in a serial fashion - from one cabinet to the next - rather than the traditional radial arrangement where all leads come from a central point.
In this way AC power can be supplied to a maximum of four cabinets. These can be configured as, say, 2 x SPL12 and 2 x SPL SUB18; or alternatively 4 x SPL 12 on one AC power feed, and 4 x SPL SUB18 on another.
For the Audio in and out, the standard female input and male output XLR conventions are observed.
For the AC power, we have used the Neutrik PowerCon connectors, for several reasons.

  1. They are a locking connector, that needs a positive twist to release it. A power cable vibrating out during a performance can be a real nuisance when the system is ground stacked, and a disaster when it is flown. Using these connectors removes this risk.
  2. They are designed in a similar fashion to the Speakon speaker connector, so are designed to cope with less than perfect conditions.
  3. All pins are fully recessed, on both the plug and socket, removing all risk of electrical shock.
  4. The connectors are fully approved by all electrical safety authorities.

The blue connector on the cabinet is the AC power Input, Part # NAC 3 MPA. This mates with the corresponding line connector # NAC 3 FCA.
The white connector on the cabinet is the AC power Output, Part # NAC 3 MPB. This mates with the corresponding line connector # NAC 3 FCB.
To loop from one cabinet to another will require a power cable with an NAC 3 FCA on one end and an NAC 3 FCB on the other.

Each SPL cabinet comes supplied with 1 x blue NAC 3 FCA line connector, which can be fitted to existing cabling to facilitate using the cabinet straight away. Further supplies of connectors can be obtained from your Neutrik distributor or your ARX dealer.
As a suitable cable for carrying both Audio and AC power, we recommend Eurocable DMX 1 or similar

Maximum Number of Cabinets
As mentioned previously, up to a maximum of 4 x SPL cabinets can be looped from a single AC power source.

These can be configured as 2 x SPL 12 and 2 x SPL SUB18; or alternatively 4 x SPL 12 on one source and 4 x SPL SUB18 on another.

SPL 8H || SPL 12|| SPL SUB18 || SPL SUB15
Open SPL Wiring Info in Adobe Acrobat PDF format


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