EAW SB730 - Manual (Page 9)

EAW KF730 & SB730 PRELIMINARY OWNER’S MANUAL Page 9 of 16
5.8.3 SB730 System Input Connections
The NL8MP connector on the SB730s can be used as the input for an entire array.
SYSTEM INPUT NL8MP
PIN 1- SB730 SUB 1-
PIN 1+ SB730 SUB 1+
PIN 2- SB730 SUB 2-
PIN 2+ SB730 SUB 2+
PIN 3- KF730 LF-
PIN 3+ KF730 LF+
PIN 4- KF730 MF/HF-
PIN 4+ KF730 MF/HF+
1. Connect the four different amplified signals needed to power a complete array of KF730s and SB730s.
2. Use the KF730 OUTPUT to loop the LF and MF/HF signals to the KF730s using NL4 cabling.
3. Use the SUB INPUT/OUTPUT to loop the Sub signals to the next SB730 using NL4 cabling.
4. Daisy-chain additional SB730s in a similar fashion.
NOTE: Using the SB730 SYSTEM INPUT on one SB730, an NL8 cable carries all amplified signals from
the array’s amplifiers to this SB730. Using NL4 cabling from this SB730, you can loop up to eight KF730s
and three additional SB730s. With the maximum combination, the nominal load for each of the four
amplified signals is 2 ohms.
KF730 OUTPUT NL4MP
PIN 1- KF730 LF-
PIN 1+ KF730 LF+
PIN 2- KF730 MF/HF-
PIN 2+ KF730 MF/HF+
1. Connect to a KF730 INPUT using NL4 cabling.
5.8.4 Wire
Gauge
The following are minimum recommended wire sizes for loudspeaker cabling. The wire sizes are based on
maintaining an acceptable damping factor and minimizing power loss. The table includes nominal load
impedances where the passbands in multiple enclosures are paralleled off one amplifier channel.
Maximum Cable Length Nominal Input Z Wire Gauge
50 ft / 15 m 16 ohm 16 AWG / 16 MWG
100 ft / 30 m 16 ohm 14 AWG / 16 MWG
200 ft / 60 m 16 ohm 12 AWG / 20 MWG
300 ft / 90 m 16 ohm 10 AWG / 25 MWG
>300 ft / >90 m 16 ohm Not recommended
50 ft / 15 m 8 ohm 14 AWG / 16 MWG
100 ft / 30 m 8 ohm 12 AWG / 20 MWG
200 ft / 60 m 8 ohm 10 AWG / 25 MWG
>200 ft / >60 m 8 ohm Not recommended
50 ft / 15 m 4 ohm 12 AWG / 20 MWG
100 ft / 30 m 4 ohm 10 AWG / 25 MWG
>100 ft / >30 m 4 ohm Not recommended
50 ft / 15 m 2 ohm 10 AWG / 25 MWG
> 50 ft / > 15 m 2 ohm Not recommended
(AWG = American Wire Gauge; MWG = Metric Wire Gauge)