Acoustic Energy Aego-T Manuel du propriétaire - Page 6

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6. Controls and System Setup

Subwoofer Controls

Accompanying the mains and signal input sockets on the subwoofer

connection panel are a level control, an auto power switch and a phase

reversal switch. Their function and use is described in the following

paragraphs.

Subwoofer Level

The level control adjusts the volume of the subwoofer relative to the satellites.

Begin with the level control set to around 50%. Detailed subwoofer level

adjustment guidelines can be found below.

Subwoofer Phase

The phase switch reverses the subwoofer acoustic polarity. With the switch

set to 0° the subwoofer output is in phase with the satellites. With the switch

set to 180° the subwoofer output is out of phase with the satellites. Reversing

the subwoofer phase can help optimise the sound of Aego-T satellite and

subwoofer systems. Further subwoofer phase advice can be found below.

Subwoofer Auto Power

The subwoofer mains power switch incorporates an automatic switch-on/

off function. With the switch set to "Auto" the subwoofer will switch on

automatically when an audio signal is present. It will switch off again when

no signal has been present for around 10 minutes. With "on" selected the

subwoofer remains switched-on permanently.

System Setup

Before listening to your Aego-T system make one final check of the cables and

connections. If all appears well begin listening at a relatively low volume to

confirm that the system is operating as expected. Only increase the volume

if you are happy that the sound at low volume is fundamentally as expected.

If you are unhappy, turn the system off and re-check all the cables and

connections.

Aego-T systems may take a little time to reach normal operating temperatures

and to "run-in". Your ears too will take some time to adjust to the new sound,

so it is unwise therefore to make rapid judgements about the performance of

the system.

The most important aspect of Aego-T system setup is the integration of the

satellites and subwoofer. Assuming the locations chosen for the satellites are

satisfactory, adjusting the subwoofer's location in the room, its volume level

and phase, and the subwoofer filter frequency selected on the audio-visual

processor should enable a good end result to be achieved.

Select a few short examples of familiar programme material - both movie and

music - to use while adjusting the setup. Listen also from a variety of different

positions in the room. Check for balance and consistency of sound - neither

too much nor too little bass across the range of programme material and

listening positions. Experimentation and careful listening is the key to finding

a good subwoofer setup.

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AE12 Rev I

Subwoofer Filter Frequency

The Aego-T satellite and subwoofer are designed to

work together with a crossover frequency of 80Hz

so the first setup parameter to adjust is to set the

audio-visual processor's subwoofer filter frequency

to this value. As you adjust other parameters you

may find that moving the filter frequency a little,

say 10Hz either way, is beneficial. Adjust other

aspects of the setup, particularly subwoofer phase,

before selecting a filter frequency higher than 90Hz

or lower than 70Hz.

Note: Despite their small size, Aego-T satellites

can handle and reproduce full range audio, so the

audio-visual processor should be set to treat them

as "large" speakers.

Sub-woofer Volume

Setting the subwoofer volume is important in terms

of both overall system balance and the demands

of different types of programme material. You

may find that material with an emphasis on music

works better with a lower subwoofer volume than

movie material with an emphasis on "effects".

Finding a compromise between the two is a matter

of subwoofer volume adjustment in parallel with

adjusting its position in the room.

Sub-woofer Location

Broadly speaking, the closer a subwoofer is to the

walls of the room (assuming they are solid brick

walls) the more bass it will generate in the room

(and the lower its volume need be set). Moving

the subwoofer closer to the walls however will also

tend to reduce the consistency subwoofer volume

over the listening room (a corner location being

the worst in this respect). Positions closer to the

wall with also tend to change the character of the

bass produced by the subwoofer - it will emphasise

the very lowest signals more. This change in bass

character with location is the variable that enables

a good compromise position for the subwoofer to

be found.

Sub-woofer Phase

Switching the subwoofer phase should be left to

last. If a good subwoofer position is proving difficult

to find, try again with the phase reversed.

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