13
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SPEAKER OUTPUTS
DMA amplifier speaker outputs allow either two channels for a low-impedance connection or a single 70 V line for speakers having
matching transformers.
Connector: EUROBLOCK (removable screw terminal block).
TWO CHANNELS (A, B) --- LOW IMPEDANCE CONNECTION (4 Ω)
Connect speakers as shown in the figure.
Minimum load impedance is 4 Ω per speaker output.
DELIVERED POWER
DMA 82:
2 x 80 W RMS @ 4 Ω
DMA 162:
2 x 160 W RMS @ 4 Ω
An impedance equal to 4 Ω allows to get the max. power (80 / 160 W).
A higher impedance leads to a reduction of the delivered power (e.g. 8 Ω: ca. 40
/ 80 W), an impedance lower than 4 Ω overloads the amplifier.
BRIDGE MODE OR HI IMPEDANCE 70 V
Connect speakers as shown in the figure.
BRIDGE MODE
Channels A, B are bridged by setting the BRIDGE MODE to ON
(see the
next manual sections ‘DMA 82 / DMA 162 operation modes’ and ‘DMA 82 / DMA
162 settings’) and can work both at low impedance speakers and hi impedance
(70 V).
Do NOT connect the other two contacts.
The overall speaker power shall not exceed 160 W (DMA 82) / 320 W (DMA 162).
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Power cord input.
Connect the power cord only to a mains socket outlet with a protective earthing connection.
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Power switch: push to turn on (I) / off (O) the amplifier.
DMA 82 / DMA 162 OPERATION MODES
After inserting the correct password (menu: SETTING > PASSWORD), it is possible to set the DMA operation among the three different
modes: mono, stereo, bridge. To activate the stereo mode, in the menu select the STEREO MODE parameter and turn it on. To activate
the bridge mode (single 70 V line output), in the menu select the BRIDGE MODE parameter and turn it on. The two parameters STEREO
MODE and BRIDGE MODE are mutually exclusive, when turning one on, the other automatically turns off. For the MONO mode, leave
both parameters set to OFF.
Summary of Contents for DMA 162
Page 2: ......
Page 29: ...29 DIAGRAMMA A BLOCCHI DEL SEGNALE AUDIO ...
Page 44: ...44 DIMENSIONS DMA 82 DMA 162 DMA 162P ...
Page 47: ...47 ...
