User Manual
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REL products are not tradional subwoofers, but true Sub-Bass Systems. A REL is designed to augment the
performance of “full range” speaker systems in order to provide, in certain cases, linear response below 15Hz.
Therefore, for the moment, please set aside everything you’ve been taught about subwoofers and how
they are integrated into a stereo or home cinema system. REL Sub-Bass Systems set-up and posioning
diers from convenonal subwoofers. A REL will take advantage of physics and room acouscs to provide
deep pressurizaon as no tradional subwoofer can. It is important that you bring to the set-up process a
willingness to do things a lile dierently in order to obtain these superior results. The end result of your
labors will be an uerly seamless integraon of true deep bass to a sound system, regardless of the main
speakers’ low bass capability.
Basic set-up should take no more than ten to een minutes to accomplish once connected.
Two Things Before You Begin
1 It is helpful to know that you will almost always connect the REL to the input on the rear panel labeled
“HIGH-LEVEL INPUT.” This connecon is made using the supplied 33’ 6” (10 meters) cable, the bare leads
of which connect to the speaker output terminals of the power amplier. The easy and foolproof connecon
at the REL is done with a Neutrik® Speakon® connector. The purpose of connecng to the speaker output
terminals is one of the unique secrets of REL’s success. By connecng to the High Level input on the REL
from the amplier, you build forward the sonic signature of your main system, including the tonal balance
and ming cues of the enre electronics chain. In this way, the REL is fed the exact signal that is fed to the
main speakers.
2 When possible, the REL should be placed in one of the corners behind the speakers. Remember, we are
dealing with true LOW bass pressurizaon with RELs. Low bass pressurizaon below 40Hz is best derived
from corner placement, where the most linear and ecient low bass can be produced because the
subwoofer is able to take advantage of the tangenal (corner-to-corner) axis which is typically the
longest axis in a room.
REL Set-Up Made Simple