MC 811a Bedienungsanleitung
Dedication to Performance
ELECTRONIC
Reference Amplifier
Made in Germany
Owner’s Manual
Important Information!
Attention: Keep the unit away from high humidity, vibration, excessive dust and direct sunlight. Excessive
heat or cold will affect the unit´s functionality. The permitted operating temperature is 10°C up to 50°C.
Avoid extreme variations in temperature. Do not operate the unit near other electric appliances (for instance
neon light and motors). The unit should not be opened without the assistance of a qualified technician.
KETI, CE-
Marking
This product is in conformity with the EMC directive and low-voltage directive. Your MC component
complies with the household power and safety requirements in your area.
Warranty
MC affords a full warranty. Please pay attention to the details given in the warranty card which ac-
companies the unit. Warranty is only issued, if you send back the warranty card.
Contents
General
1
Contents
Page
2 A. General
2 1. Accessories
2 2. Placement
2 3. Maintenance
3 B. mc 811a / 833
3 1. mc 811a Views
3 1.2 Rear view
42. Connecting the power amplifier to speakers
5 3. Connection the power amplifier to pre-amplifier
6 C. mc 812s / 812
61. mc 812 Views
72. Connecting the power amplifier to speakers
83. Connection the power amplifier to pre-amplifier
9 D. Operating the remote control
91. Replacement of the batteries
9 2. CD player controls
10 3. Pre / Integrated amplifier controls
10 F. Troubleshooting
11 G. Specifications
11 mc 811a / 833 / 812s /812
12 mc 811.a Addendum Sheet
mc 701
2
A. General
1. Accessories
Your new MC Lines component comes with a multi-usable system remote control for your convenience. It can be used to
control any or all of the MC product range including the preamplifier, CD player, power amplifier and integrated amplifier
The system remote control is not included in the delivery of the MC power amplifier.
2. Placement
Please ensure that there is sufficient ventilation and flow of air on all sides of the unit. There must be a minimum space of
2 cm (approx. 1”) above all MC amplifiers to allow for excessive heat to escape.
In case you wish to operate two or more amps, you can stack them, place them on shelves, or fit them under a cabinet.
Notice: Never completely cover or operate the amp in a place with insufficient flow of air. If you do, the amp may
overheat.
3. Maintenance
Unplug the unit before cleaning!
To clean the exterior surfaces of your MC unit use a dry, soft cloth. To wipe off finger prints and other grease spots, use a
soft, wet cloth moistened with a mild detergent dissolved in water.
Caution: The cloth must never be dripping wet! If water or other fluids enter the cabinet, you risk to damage the unit.
Never use scouring pads, steel wool, scouring powders or harsh chemical agents, alcohol, thinners, benzine, insecticide or
other volatile substances, as these will destroy the finish of the cabinet.
mc 811a / 833
3
E. mc 811a / 833 Mono Power Amplifier
1.1 mc 811a / 833 front view
* made of 20 mm special material to absorb mechanical resonances and signal distortion.
1.2 mc 811a / 833 rear connection panel view
mc 811a / 833
4
2. Standard connecting the power amplifier to the speakers
There are two pairs of speaker terminals on the back of the amplifier. Two speakers can be connected to the amplifier.
To connect the speakers only use high quality cables. Especially recommended are coaxial cables with high copper quality.
Example for Connection:
Standard
Connection
Bi-Amplifier
mc 811a / 833
5
Bi-Wire
3. Connecting the power amplifier to the preamplifier
To connect the power amplifier to the preamplifier you can either use the XRL or the RCA input.
Notice: Remove all cables from inputs not in use. Never use both XLR and RCA inputs at the same time.
Pin assignment of XLR plug
1 = earth (0V)
2 2 = + in phase
3
1 3 = - counter phase
Balanced input (use XLR cables) Unbalanced input (use RCA cables)
OUT1 OUT2 BAL ANCED OUT OUTPUT
L R L
R
OUT1 OUT2 BAL ANCED OUT O UTPUT
L R L
R
R L R L
R INP UT INP UT LR INP UT INP UT L
mc 812s / 812
6
E. mc 812s / 812 Stereo Power Amplifier
1.1 mc 812s / 812 front view
* made of 15 mm special material to absorb mechanical resonances and signal distortion.
1.2 mc 812s / 812 rear view
mc 812s / 812
7
2. Connecting the power amplifier to the speakers
There are two pairs of speaker terminals on the back of the amplifier. Two speakers can be
connected to the amplifier.
To connect the speakers only use high quality cables. Especially recommended are coaxial cables
with high copper quality.
Example for Connection:
Stereo Connection
Bi - Amplifier
mc 812s / 812
8
3. Connecting the power amplifier to the preamplifier
To connect the power amplifier to the preamplifier you can either use the XRL or the RCA input.
Notice: Remove all cables from inputs not in use. Never use both XLR and RCA inputs at the same time.
Pin assignment of XLR plug
1 = earth (0V)
2 2 = + in phase
3
1 3 = - counter phase
Examples for Connection:
Balanced input (use XLR cables) Unbalanced input (use RCA cables)
OUT1 OUT2 BAL ANCED OUT OUTPUT
L R L
R
OUT1 OUT2 BAL ANCED OUT O UTPUT
L R L
R
R L R L
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