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8. INPUTS AND CONTROLS
(MPS-5310 SHOWN AND SHOULD BE USED FOR REFERENCE ONLY, CONTROLS MAY NOT APPLY TO ALL MODELS)
A) Mono Balanced Input - 61K Ohms balanced input connector - 200mv in produces 90dB of output
(Reference/THX input sensitivity mode).
Pin Polarity: 1. Ground
2. Plus
3. Minus
B) Variable Low-Pass Filter - 50Hz to 125Hz, 36dB per octave low-pass filter. This optional adjustment is activated by
setting the 3-way toggle switch located to the right of this knob to the center position.
C) 3-way Low-Pass Filter Toggle Switch - In the THX position of the switch the low-pass filter of the subwoofer is bypassed.
This mode should be used when operating the subwoofer with an external bass-management box or consumer Dolby
Digital/THX receiver/decoder. In the center position, this switch activates the variable low-pass filter (B). The bottom
position of this switch activates an 80Hz, 24dB per octave filter. This mode should not be used when the subwoofer is
being connected to an external bass management box.
D) Phase Switch - Allows the subs phase to be changed between 0 degrees and 180 degree out of phase so as to best
accommodate subwoofer location and crossover performance with regards to the main speakers.
E) Standard IEC Power Cord Receptacle
F) Fuse Holder
110 Volt (US) External Fuse 6.0 Amp 3AG - 1/4" x 1 1/4" Slow-Blow
220 Volt (US) External Fuse 3.0 Amp 3AG - 1/4" x 1 1/4" Slow-Blow
220 Volt (IEC 127-2III) External Fuse T 3.15 A 5 x 20 mm Time-Lag
Internal Fuse (all versions) 7.0 Amp 3AG - 1/4" x 1 1/4" Fast-Blow
G) Bass EQ Switch -
THX Position -3dB at 35Hz (anechoic)
+/-1dB pass band (40Hz to 150Hz)
-3dB at 200Hz
Rooms that are below 6,000 Cubic feet in volume typically have a rising characteristic below 35Hz. When the subwoofer
is used in rooms of this size or smaller, the subwoofer should be set in the THX position for flat in-room response.
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