CH M1.1, Руководство пользователя

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3 Installation
3.1 Unpacking
Unpack the M1.1 power amplifier and store the packaging for future use. At least two people are required to lift the M1.1 as it is
very heavy (over 75kg).
3.2 Positioning your unit
We recommend to locate the M1.1 close to the loudspeaker it drives, using short loudspeaker cables.
For best transmission and immunity to external noise, we recommend to connect the M1.1 input to the upstream unit
(preamplifier) using a balanced XLR cable.
When delivered from factory, the M1.1 amplifier's four feet sit on elastomer rings, ensuring both scratch-protection for the base on
which the unit sits, as well as safe anti-slipping unit positioning.
But a more advanced vibration-channeling mechanical coupling can be implemented, thanks to the steel spikes and the polymer
support discs provided with the M1.1. To use this optimal coupling, simply go through the following steps:
1.
Place the M1.1 unit on a stable base at its approximate final position, for instance in your preferred audio rack. Make
sure cooling air is able to freely flow around the unit.
2.
Gently lift the unit's corners and insert a support disc under each foot. The foot's elastomer ring should disappear in the
support disc's groove when properly placed. Carefully check all four feet perfectly fit in each support disc before pursuing
any further. The unit should stably rest on its feet at that point.
3.
Unscrew the four top covers from the M1.1's shafts with the provided suction cup. Be careful not to scratch their delicate
finish.
4.
Insert the adjustment spikes into each adjustment shaft.
5.
Softly screw clockwise each adjustment spikes into the shaft with the provided screwdriver, until any resistance is felt (just
before the unit's corner starts to lift).
6.
Then screw clockwise each spike by the same amount (for instance two full turns).
7.
If the base is flat, the unit should be stable and horizontal. If not, correct the unit's stability and horizontality by turning
clockwise or anti-clockwise the required spikes.
8.
If no CH Precision unit is to be stacked on top of the M1.1, screw the four top covers back. Otherwise, screw the four
polymer stacking caps instead, and gently lay down the unit to be stacked on top of it. Be very careful that both units are
perfectly aligned in order not to scratch the M1.1's top plate with the other unit's feet. Repeat steps 3 to 8.
Rev 3.0 M1.1 User Manual 15