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10" Woofer/200W Amp: The Infinity Reference series SUB R10 powered sub
features a 10" fiber composite woofer with rubber surround and a 200W RMS/400W
Peak amplifier for dynamic bass response. There is one rear-firing bass port
that allows deeper bass with high acoustic efficiency and low distortion.
Controls: All of the powered sub's controls are located on the
back-panel. There is a Subwoofer Level control for adjusting the level of the
bass to match the output of your front speakers. There is also a continuously
variable (50-150Hz, 24dB/octave) Low-Pass Crossover which determines the highest
frequency at which the subwoofer reproduces sound. The crossover is bypassed
when the crossover is set to the "LFE" position. The powered sub's Phase
Switch (Normal/Reverse) allows you to control the phase of the subwoofer's
output relative to the front speakers; if the bass sounds muddy or unclear,
toggling the phase control can sometimes strengthen the bass "attack".
In addition there is a LF Trim switch which boosts the powered sub's bass level
(0, +2dB, or +4dB) in comparison with the rest of your system.
Line-level Inputs: Two gold-plated RCA jacks are provided
for connecting the powered sub to your AV receiver. You can use a single RCA
cable to connect the Subwoofer or LFE (low frequency effects) Output on your
receiver to the powered sub's L/LFE line-level (RCA) input. Since most
subwoofer/LFE outputs are filtered by most receivers/processors, the subwoofer's
variable low-pass filter is usually not required and should be bypassed; this is
done by placing the sub's crossover to the "LFE" position. If your receiver has
preamp outputs, or if you are using a receiver without a designated
subwoofer/LFE output, the preferred connection is to use a stereo RCA cable
plugged into both left and right line-level RCA inputs. If the preamp outputs
are unfiltered, the subwoofer's internal crossover should be used placed in the
Auto On/Off Circuit: The auto on/off circuit turns the power
amp on when a signal is sensed and turns the amplifier off and into standby mode
approximately 10 minutes after a signal is no longer received. An LED indicator
on the rear panel glows green when the amplifier is on and red when the amp is
Mounting Feet: The Infinity Reference series SUB R10 powered sub
features integrated rubber feet to prevent against unwanted vibration and
protect your hardwood or tile flooring. The powered sub also comes with four
spiked feet which screw into the integrated rubber feet, ideal for carpeted
flooring. The spiked feet add approximately 0.4375" of height to subwoofer.