User Manual

25
3 Once each sub has been carefully tuned, aach the cables for both subs. At this point, the output
achieved will be too loud and will require re-seng the volume/gain control of each No.25 lower. This is
normal as the combined output is likely to be at least 3 db louder with both subs now being used. Using
the supplied remote, carefully turn down each sub unl perfect balance is achieved. While turning the
le or right sub gain down, it is helpful to turn slightly and even lean slightly toward the side that is being
adjusted to beer achieve focus and a balanced sound level more quickly.
No.25 is designed to allow mulple units to be used in conjuncon either as stereo pairs, or the ulmate:
vercal tower stacks of stereo subs. Stacked towers extend and strengthen the performance.
Connecvity for Towers of No.25, Mulple Sub-Bass Systems
To render connecvity simple, No.25 provides both inputs and outputs for all connecons. Thus, a stack
of No.25 can be connected using only one high-level main cable from power amp to REL stack. In a .1 lm
sound conguraon each channel will require a single main.1 cable as well, but addional units’ .1/LFE
connecons in a tower may be daisy chained to minimize cluer. Stacked No.25 subs have the ability to
eortlessly energize even the largest of salons with huge wavefronts of air, from the most delicate cello
pizzicato to the most crushing of pipe organs played at triple forte, No.25 possesses the ability to convey
the musical event or lm sound spectacularly and with ease.
This connecvity allows for the same amplier output signal to easily feed mulple sub-bass systems.
Simply use the oponal cable (Speakon-to-Speakon) to connect from the “HIGH LEVEL OUTPUT” of the rst
sub-bass system to the “HIGH LEVEL INPUT” of the second unit.
When “daisy chained” each sub-bass system retains its autonomy and each will need to have its output
level, crossover point, phase, etc. adjusted individually.
For mul-channel home cinema systems, the same procedure is followed except a RCA-to-RCA cable is also
used to connect the rst sub-bass system “.1/LFE OUTPUT” to the “.1/LFE INPUT” of the second unit. As is
typical for REL, both high-level and .1/LFE inputs can be used together and adjusted independently oering
the ability to blend both signals to your taste.