Axiom LFR1100, Manual, Page: 5 / 8

5
Suggestions and Steps for Setting up the LFR1100 Actives
With significantly more connections than a conventional pair of stereo loudspeakers, we highly recom-
mend taking your time and working though each set of connections section by section, double-checking
as you progress. If possible, we recommend using XLR connections between the DSP and power ampli-
fier(s) if your amplifier(s) support XLR connections. Likewise, if your pre-amp/processor has XLR outputs
they should be used for connection to the DSP inputs.
In order to avoid crossing DSP or speaker connections and ending up with unsatisfactory performance,
it’s advisable to make a single RCA or XLR connection from the output of the DSP to the corresponding
input on your power amplifier (FRONT TW, for example). Then proceed to make the connection for that
section from the amplifier speaker output to the corresponding loudspeaker input. Pay close attention
to speaker cable polarity on each end. Ideally you will have enough space around the speakers to place
them in their approximate locations and then make the connections. If you have purchased the optional
LFR1100 Active wiring kit, each cable will be color-coded and each speaker cable will have pre-installed
dual banana plugs, simplifying the installation process significantly. For other types of speaker wire con-
nections, please refer to page 7.
The LFR1100 Actives come with a separate DSP chassis for each channel. When selecting partnering
amplification, it’s best to dedicate a single 5-channel amplifier (or a combination of amplifiers to make up
five channels) to ONE speaker channel. That means one DSP to one amplifier. Combining connections
from two DSPs to a single amplifier can sometimes result in signal ground loops that cause buzzing or
hum. Ideally you would also not share the LFR amplifiers with other speaker channels in your system for
the same reasons (like using a 6-channel amplifier for one LFR and your centre channel).
For the electronic components, it’s best to have each chassis on a dedicated shelf with adequate air
space above the amplifiers. If you need to stack components, it’s best to have the DSP under the ampli-
fier for proper ventilation. Cables should be routed in such a way to keep low-level interconnects togeth-
er and away from AC cables. It’s also a good idea to have all of your components on the same AC circuit
as it will minimize the chance of ground loops.