d&b D80 User Manual
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The amplifier enables up to four input channels, which may be four
analog inputs, two analog and two AES channels or four AES
channels. Each input channel can be routed to any of the output
channels A to D. XLR connectors 2 and 4 of the D80 can be used
as either digital or analog inputs, connectors 1 and 3 are analog
inputs. Link outputs are supplied for all inputs. This 1:1 ratio of
inputs to amplifier output channels increases flexibility of
application, particularly for use as monitor, frontfill or effect
channels.
The D80 amplifier outputs are optionally NL4 or EP5 connectors
plus one centered NL8 connector with all pins driven. The latter
serves as an interface to a rack panel or to loudspeaker multicores
and breakout adapters. To simplify configuration, the output mode
of the amplifier can be configured like a set of two dual channel
amplifiers providing Dual Channel, Mix TOP/SUB or 2-Way Active
modes for the left and the right channels A/B and C/D,
respectively.
For applicable loudspeakers, d&b LoadMatch enables the D80
amplifier to electrically compensate for the properties of the cable
used to connect the loudspeakers to the amplifier output. This
function which covers a bandwidth of up to 20 kHz preserves the
tonal balance when cable lengths of up to 70 m (230 ft) are used.
Due to its design LoadMatch does not require additional wires and
is therefore applicable with any connector type used.
To provide optimum compensation, cable length and cross-
sectional data as well as the number of loudspeakers connected to
the amplifier channel can be entered on the amplifier.
The D80 utilizes a switch mode power supply with active Power
Factor Correction (PFC) to produce a clean current draw and
ensure stable and efficient performance under adverse mains
conditions. The high power capabilities provide increased power
to fully drive all applicable d&b loudspeaker cabinets and
sufficient headroom for any future systems.
Remote control and full system integration are realized using the
d&b ArrayCalc simulation software and R1 Remote control
software V2. The D80 amplifier includes two Ethernet ports on
etherCON connectors to enable daisy chaining. Both Ethernet and
dbCAN protocols are incorporated. The Ethernet protocol
implemented in the d&b R1 Remote control software V2 and the
D80 amplifier is a protocol developed by the OCA Alliance (Open
Control Architecture Alliance), of which d&b is a founding member.
For further details, please refer to the OCA website:
D80 Rear view
d&b D80 Manual 1.9 en
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