Epos M Series User Manual

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GETTING STARTED
OVERVIEW
The Epos M Subwoofer is an active loudspeaker.  In other words, it has an built-in power
amplifier to boost the signal level. Therefore, there is no need for an external power amplifier to
drive it. In addition, the M Subwoofer has a complex filter circuit which boosts sub-sonic
frequencies and is adjustable to allow it to be matched to different room sizes, shapes and user
requirements.  The rear panel controls provide a range of adjustments for this purpose.
The M Subwoofer is designed to extend the low frequency response of both 2 channel and multi-
channel systems, which each demand a very different tonal balance. This is described later, but
control adjustment and placement in the listening room is important, so please read these
instructions carefully for best results.
QUALITY
The M Subwoofer has a powerful 10" (254mm) loudspeaker driver, with enough magnet strength
and voice coil size to handle very high power levels for long periods without distress.  Its cone
diaphragm is very stiff to keep distortion and colouration to a minimum. The rubber suspension
surround is smaller than normal and quite stiff, which also helps to reduce  distortion and low
frequency over-hang.  In short it has been designed to be more appropriate for a two channel bass
unit than a conventional subwoofer.  
To further boost the fidelity of the M subwoofer, it has a very stiff cabinet with extensive internal
bracing, which is rarely found in conventional subwoofers. It has a completely separate section at
the back of the cabinet to house the amplifier, which would normally be found in professional
speakers and not in conventional subwoofers at any price. To further improve the sound quality
Epos does not use port tuning to achieve boost bass extension, which avoids 'chuffing' air
turbulence noises interfering with the fidelity of the speaker. 
In short, the M subwoofer is very unusual and can be used to good effect to extend the
frequency response of a stereo system of any quality or price.
INSTALLATION AND SETUP
Having established which power cord to use, select the correct mains voltage for your region with
the selector switch on the back panel. (If in doubt, please read Page 1 again or ask your
supplying dealer for advice). If neither of the two cords supplied are correct for your mains supply
socket, do not proceed until you have contacted your dealer for advice or assistance. 
Positioning the subwoofer is important if the best results are to be achieved. Place the subwoofer
where it can be connected easily to the mains power supply and to the output of the receiver or
stereo amplifier used for the rest of your system. Whilst this would normally be close to the
system, be prepared to move it around the room to gain the best results.  
The Epos M Subwoofer is a ‘down-firing’ speaker that has four purpose made legs that hold it
50mm above the floor.  It also has a plinth that fixes to the ends of the feet with long bolts and
covers the entire bottom of the speaker. Make sure the plinth is bolted to the cabinet with the Epos
badge at the front. The plinth helps to prevent accidental damage to the exposed driver and also
provides a stable platform for the speaker to stand on.  
The mains supply can be left connected as it has a low current standby condition which is enabled
when no signal is present for a short while.
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