Amphion Impact 400 Owner's Manual - Page 4

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Connecting your subwoofer

Subwoofer can be connected to either a hi-fi or home theater system in various ways depending on usage

and listening habits.

NOTE! When connecting the subwoofer all the power must be turned off both from the subwoofer

and the equipment to which the subwoofer is being connected to.

1. Moderate listening levels, best sound quality

(Picture 1)

When optimum sound quality especially with mu-

sic is required the subwoofer will be collected as

follows:

• Connect the speaker from the amplifier to the

speakers (L and R). Use another pair of speaker

wires to extend the wires from the speaker

terminals to the subwoofer's SPEAKER LEVEL INPUT

(L and R).

• Place INTERNAL X-OVER/DIRECT-switch to position

"internal x-over".

This position does not limit the signal in any way, so

it is possible that small main speakers with limited

power handling can become strained with high liste-

ning levels. The possibility of this occuring is reduced

when larger speakers are used.

2. High listening levels, good sound quality

(Picture 2)

When high listening levels are used the subwoofer

should be connected as follows

• Connect the speaker from the amplifier to the

subwoofer's SPEAKER LEVEL INPUT (L and R).

Use another pair of speaker cables from the

subwoofer's SPEAKER LEVEL INPUT (L and R) to the

speaker's left and right terminals.

• Place the INTERNAL X-OVER/DIRECT switch to

position "internal x-over".

This connection method filters out the lowest bass

frequencies, so that the main speakers do not be-

come strained.

impact 400

3. Connecting between the pre- and power

amplifiers (Picture 3)

In some systems it is possible to connect the sub-

woofer between pre- and power amplifiers, when

the filtering of bass frequencies works better than

when connected to speaker signal (connection met-

hod 2). The connection takes place as follows:

• Connect "preamplifier out" with RCA equipped

interconnects to the subwoofer LINE LEVEL INPUT

incoming connectors (L and R) and connect the

subwoofer's LINE LEVEL OUTPUT outgoing connector

RCA inter-connects

• Place INTERNAL X-OVER/DIRECT switch to position

"internal x-over"

4. Connecting to home theater amplifiers LFE

output (Picture 4)

When the subwoofer is used with small satellite

speakers in a home theater setup, one recommen-

ded way is to the connect the subwoofer to the

surround amplifier´s LFE output as follows:

• Connect an RCA-signal cable from the home

theater amplifier's LFE output to the subwoofer's

LINE LEVEL INPUT

• Place the INTERNAL X-OVER/DIRECT switch to the

'direct' position

In all scenarios also experiment by blocking the bass

reflex tubes, which allows the speakers to integrate

with the subwoofer in the best possible manner.