Linn ISOBARIK AKTIV, Руководство пользователя

Страница: 7 / 9

7
3.
Signal Interconnections
Take time to label all cables prior to installation. This will save time and potential errors if the
system is ever moved or disconnected. We provide labels to identify each cable.
The XLR leads supplied with the AKTIV are suitable for installations where the crossover is up to
1.2 metres away from the preamplifier. The leads from the crossover to the power amplifiers
allow for the crossover to be within one metre of the power amplifiers. If you wish to have the
crossover remote from the preamplifier, your dealer/distributor can supply the necessary length
of cable. The loudspeakers should be connected to the power amplifiers using Linn K20 cable.
When connecting the system to the LK2 power amplifiers we recommend that you connect LEFT
BASS and RIGHT MIDDLE to one LK2, LEFT' MIDDLE and RIGHT BASS to the second LK2 and
LEFT and RIGHT TREBLE to the third LK2.
Three LK2s can be stacked on top of each other but ensure there is adequate ventilation. The
treble amplifier should be on top of the stack. Powering up for the first time should be done after
double checking all connections especially speaker connection phase.
IMPORTANT:
1. When using a Linn LK1 preamp the +ve of the power amplifier output should be
connected to the -ve speaker terminal, and the -ve of the amplifier to the +ve of the
speaker. This is because the LK1 inverts signal phase to the main output.
2. The AKTIV contains de-thump circuitry to protect your speakers but a slight noise may
be heard on power down.
3. First, play music through the system at very low level and listen to each drive unit,
ensuring that appropriate sounds are coming out of each unit.
4. Check for hum in the system. If there is a problem, this can be cured by repositioning
either the turntable, preamplifier or crossover. If hum persists, check earthing.
4.
Adjustment
The AKTIV Isobarik system is preset at the factory for an acoustically correct on-axis frequency
response, and we recommend that you listen to the AKTIV in this configuration for some time. In
general you will find that no adjustment will be necessary on the mid-range or treble. The bass
level may require adjustment to suit some rooms. (See following section for full details).