Info Sheet

RKB-850, RKB-D850, RKB-8100 and RKB-D8100
The ampliers come in two eight-channel congurations
at 8 x 50 watts and 8 x 100 watts RMS per channel into
8 ohms, all channels driven. All RKBs can double that
output into 4 ohms as a result of their sophisticated,
efcient Class D design. The ampliers are rugged and
extremely reliable, but Rotel has taken additional further
precautions to maximize service life by utilizing dual
thermostatically controlled fans to exhaust heat away
from the output modules and power supply.
The Digital versions (Designated by a “D” in the
nomenclature) feature four TOSlink digital inputs with
individual stereo DACS for each pair of channels in
addition to the four analog inputs. When a digital audio
source is detected on the TOSlink input the unit will
automatically switch to the digital input. If an analog
input is connected, that source similarly will be detected.
No user conguration is required. Each digital input
supports up to 24 Bit/192 kHz LPCM audio.
All RKB ampliers share common features such as:
Improved input linking. In the previous units, zones could
only be linked from A. Now, a second input can source
from any ‘upstream’ input - so B can source from A, C
can source from B and D can source from C. You can
create four individual stereo zones, two dual zones or
three common zones plus an individual zone. In other
words, two Sonos Connects (for instance) might be
divided between kitchen and patio (A+B zones) and
Master Bedroom and Bath (C+D).
Ideal for use with Sonos Connect.
The new RKB ampliers are not only improved in general
functionality and exibility, more importantly, they can now
be tied into Sonos based systems seamlessly. A 3-way
switch located on the rear of the ampliers controls and
operates Signal Sensing for both analog and digital inputs
(on the “D” versions). In the case of the “D” versions, the
signal sense is applied to the circuit post-DAC so it is not
fooled by a clock signal. The amplier stages and certain
other circuits are shut down, but the DAC circuit needs
to remain on for signal sensing.
RKB-850 RKB-D850
RKB Series Eight Channel Power Ampliers
Rotel has been designing and manufacturing
award-winning power ampliers for over 50
years.That considerable expertise has now
been applied to a new generation of rack-
mount custom installation ampliers that
are sure to set standards for performance,
reliability, and ease of installation.