Connecting the 2070Si
Multi-Channel AV System
Setting Up
Play some stereo music you are familiar with and experiment with the
Phase invert setting and level control until you hear a seamless blend
between the front speakers and the subwoofer. If you can hear the
subwoofer standing out it's too loud!
Always bear in mind that the human ear's sensitivity to bass varies
enormously with the volume level, hence the need for a wide range of
programme material and sound levels. Once you are happy with the
sound you can then fine tune the performance by using the included CD.
Many Home Theatre amplifiers have distance settings which build in a
time delay depending on the distance of the speaker from the optimum
listening position; the sweet spot. The location of the subwoofer is one of
the most important aspects of any Home Theatre system therefore
getting these settings correct will give a significant improvement to the
system's overall performance. Included with the 2070Si Subwoofer is a
CD designed to assist in the setup of the AV amplifiers distance/time
delay settings.
Set-Up Disc: The disc contains six tracks, each one plays pink noise (20
Hz to 1000Hz) through a combination of one speaker and the subwoofer.
Track one:
Subwoofer and Front Left speaker
Track two:
Subwoofer and Front Centre speaker
Track three:
Subwoofer and Front Right speaker
Track four:
Subwoofer and Rear Right speaker
Track Five:
Subwoofer and Rear Left speaker
Track six:
Subwoofer and all speakers
Choose whichever front speaker is closest to the subwoofer and play the
corresponding track. For instance if it is the front right speaker then play
track three. Adjust the amplifier distance/time delay settings for the
subwoofer by the smallest amount possible. This can be increased or
decreased, it's not important which. For instance if the distance is set to
4m then change it to 4.1m or 3.9m. Listen to see if the pink noise
becomes warmer and fuller or thinner in tone.
If you chose 4.1m and the sound became fuller in tone then change the
setting again to 4.2m and so on until the sound starts to become thinner
again. If however when you changed to 4.1m and the sound became
thinner try reducing the setting to 3.9m. In this way it should be possible
to find the optimum (warmest) setting.