Manualshelf

Operation Manual

ManualsBrandsLab Gruppen ManualsPower Amplifiers4800W 4-Channel Amplifier with NomadLink Network Monitoring and Dedicated Control for Install Applications
11121314151617181920
5. Operation and performance
18
C SERIES Operation Manual rev 3.0.0
NOTE: When linking the same source signal to several input channels, be aware that there is a limit to
the number of channels an output source can “drive”. A typical output source (e.g. a DSP crossover
unit) can drive up to four amplier channels before external line-drivers might be required to buffer
the signal.
5.4.2. Output operation and connection
Screw-terminal connectors with + and – poles are provided at each channel output for connection of the speakers.
Make sure that the speaker cables are connected correctly and tightly, and that accurate polarity is maintained to
all speakers in the system.
As the amplier outputs produce high voltage, do not connect or disconnect speaker cables when the mains
power is on. Also, attach the safety cover on the speaker terminals for safe operation and to comply with electrical
product approvals.
5.4.3. Output bridge mode
It is possible to bridge channels in pairs of two (A+B and C+D for example). When bridged, the input source must
be connected to input A (A+B) or C (C+D) respectively. Output speaker cables must be connected to the plus pole
on channel A or C and the minus pole on B or D.
The main benet of bridging the output is a doubling of output voltage. Bridging can be used to turn the amplier
into a three-channel amplier with, for example, 2 x 1200 W and 1 x 2400 W at 4 ohms utilizing the C 48:4, or
simply to achieve an impressive 200 Vrms supply per channel.
Most power amplier designs, when bridged, automatically introduce a +6 dB input gain boost which can lead the
user to conclude that said amplier delivers “more than double the power” when in bridge mode. This is clearly not
the case, as the gain boost articially enhances perceived power at the cost of headroom. The C Series ampliers
work on globally set constant gain, and automatically compensate the input gain by -6 dB. For example, if the
amplier is congured in a three-channel mode, then the selected gain is maintained from input to output on all
channels.