DK digital ls-400 User Guide
Connecting the Loudspeakers to the Amplifier
In order to avoid damage of the speakers or other connected devices, please establish all
connections while the amplifier is switched off.
connections while the amplifier is switched off.
Bi-Wiring Connection
On the back of the front speaker, there are 2 groups of connection terminals, whose + and –
poles are connected with one another. This means you can connect the speakers using
bi-wiring. The following consideration is behind the “bi-wiring” procedure:
All frequencies are broadcast together in the speaker cable in conventional connections.
However, this means that the low frequencies are broadcast with considerably higher
performance than the high frequencies. This can lead to loss of sound. Separate power
supply through two cables (one for the high frequency and one for the low frequency) can
lead to a noticeably improvement of tone.
On the back of the front speaker, there are 2 groups of connection terminals, whose + and –
poles are connected with one another. This means you can connect the speakers using
bi-wiring. The following consideration is behind the “bi-wiring” procedure:
All frequencies are broadcast together in the speaker cable in conventional connections.
However, this means that the low frequencies are broadcast with considerably higher
performance than the high frequencies. This can lead to loss of sound. Separate power
supply through two cables (one for the high frequency and one for the low frequency) can
lead to a noticeably improvement of tone.
If desired, you can control the mid-range/high-range systems and the low tones
separately. For this reason there are four spring clips on the connection terminal. With the
two upper ones, the mid-range/high-range systems are controlled and the lower spring
clips control the lower tones. In the factory, we electrically connected the + and – poles of
the upper and lower spring clips together with bridges. Through these bridges, the speaker
works in the conventional way, i.e. it is connected with the amplifier in a completely normal
way. It is irrelevant whether you use the upper or lower spring clips for this.
separately. For this reason there are four spring clips on the connection terminal. With the
two upper ones, the mid-range/high-range systems are controlled and the lower spring
clips control the lower tones. In the factory, we electrically connected the + and – poles of
the upper and lower spring clips together with bridges. Through these bridges, the speaker
works in the conventional way, i.e. it is connected with the amplifier in a completely normal
way. It is irrelevant whether you use the upper or lower spring clips for this.
If you want to use the bi-wiring procedure, firstly please remove both bridges, with which
the + and – poles of the upper and lower connector groups are connected together. You
then need either 2 speaker cables or a special bi-wiring cable. On the amplifier, connect
both cables to the output of the appropriate channel. Connect the upper connections for the
mid-range/high-range systems with one cable and the lower connections with another
cable for the lower tones.
the + and – poles of the upper and lower connector groups are connected together. You
then need either 2 speaker cables or a special bi-wiring cable. On the amplifier, connect
both cables to the output of the appropriate channel. Connect the upper connections for the
mid-range/high-range systems with one cable and the lower connections with another
cable for the lower tones.
In phase connection
For optimum sound quality it is inevitable to connect speakers and amplifier in phase. I. e.,
within the respective channel (front right / left, centre, rear right / left)
- the „+ terminal” of the amplifier must be connected to the „+ terminal” of the box, and
- the „— terminal” of the amplifier must be connect to the „— terminal” of the box.
For optimum sound quality it is inevitable to connect speakers and amplifier in phase. I. e.,
within the respective channel (front right / left, centre, rear right / left)
- the „+ terminal” of the amplifier must be connected to the „+ terminal” of the box, and
- the „— terminal” of the amplifier must be connect to the „— terminal” of the box.
5