Induction Dynamics ID1.15 - Manual (Page 12)

12 Audio Perfection Realized
™
ID1.15 Main Speaker Connection
Remove the jumpers from the binding posts on the back of the ID1.15 and set the switch to
“Three-way + Subwoofer”. Connect the left and right amplifier channels to the top binding
posts on the ID1.15 using normal polarity (red to red and black to black).
Subwoofer Amplifier Interconnect
The ID1.15 is designed to be used with the A2 subwoofer amplifier (designed and built by
Induction Dynamics). The A2 subwoofer amplifier is designed to integrate with audio/video
pre-amplifiers and receivers that have their own built-in low-frequency crossover circuits,
typically containing optional crossover frequency settings. If the crossover frequency is
selectable, the recommended setting for the ID1.15 is 80 Hz with the subwoofer connected
in reverse polarity (see below under Subwoofer Connection).
Using high quality interconnect cables with RCA type terminations, connect “SUBWOOFER
OUT” on the audio/video pre-amplifier or receiver to “IN” on the A2.
You may adjust the subwoofer level using the control in the menu of the audio/video pre-
amplifier or receiver.
Subwoofer Connection
The jumpers should be removed and the switch set to “Three-way + Subwoofer”. Connect
the lower binding posts on the back of the ID1.15 to the A2 subwoofer amplifier in series
using reverse polarity (red to black and black to red).
On the opposite page are diagrams showing alternative methods of connecting the
subwoofers, to achieve the in-series, reverse-polarity connections.
Power Connection
Connect the A2 amplifier to a 120 volt, single phase, 60 Hz, grounded power supply using the
power cord provided. For best results, use a dedicated power circuit for your amplification
equipment.