ELAN HOME SYSTEMS
Page 12 © ELAN Home Systems 2005 • All rights reserved.
A1240 INSTALLATION MANUAL
Mono Bussing
This example is a variation of the previous one. The first A1240’s Bus Loop Outputs
are 'Y’d' to create a summed L/R signal, allowing the addition of twelve monaurally-
wired speakers.
A/V Receiver
L R
Pre-Outs
X 6 Pair
A1240 #1
A1240 #2
BUS
BUS DIP Switch Settings for A1240 #2
CH 1, 3, 5, 7, 9, 11
CH 2, 4, 6, 8, 10, 12
RCA
‘Y’ Cable
2 3 4 5 6
2 3 4 5 6 7 8 9 10 11 12
X 12
BUS
BUS DIP Switch Settings for A1240 #1
CH 1, 3, 5, 7, 9, 11
CH 2, 4, 6, 8, 10, 12
Stand-Alone System w/ A/V Receiver (Mono)
• A1240 #1 Bussed Stereo
• A1240 #2 Bussed Mono
• A/V receiver to BUS INPUTS of A1240 #1
• LOOP OUTPUTS of A1240 #1to BUS INPUT R of A1240 #2
using RCA 'Y' Cable
All Speakers Volume Ramps Up & Down Together