Page 1
RKB-850, RKB-D850, RKB-8100 and RKB-D8100
The amplifiers come in two eight-channel configurations
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,
efficient Class D design. The amplifiers 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 configuration is required. Each digital input
supports up to 24 Bit/192 kHz LPCM audio.
All RKB amplifiers 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 amplifiers are not only improved in general
functionality and flexibility, more importantly, they can now
be tied into Sonos based systems seamlessly. A 3-way
switch located on the rear of the amplifiers 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 amplifier 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 Amplifiers
Rotel has been designing and manufacturing
award-winning power amplifiers for over 50
years.That considerable expertise has now
been applied to a new generation of rack-
mount custom installation amplifiers that
are sure to set standards for performance,
reliability, and ease of installation.
Page 2
Additional features:
- A rear panel RS232 connection allows automation
systems to provide control and feedback. The RKB
amplifiers also include four front panel trim pots,
which allow easy level adjustment to balance zones.
- Never Turn Off - The RKB will always be on, never
go into standby. (Obviously the amplifier can be turned off completely using the on/off button on the front panel).
- Trigger on/off -“ when the RKB receives
a 12 volt trigger, it will turn on.
- NOTE - RS232 On/Off -“ Can also be turned
on or off via RS232 command.
- As a safety feature and regardless of mode the
amplifier will monitor its temperature. If it rises above
a determined level the fans will come on until the unit
has cooled down then return to standby operation.
- 5-way speaker binding posts
- Buffered analog audio pre-output to connect
additional RKBs,
- IEC power receptacle with detachable cord.
- 2U height takes up a minimal amount of rack space
and the RKBs can be stacked together without the
need for rack spacers to maximize rack efficiency.
RKB-850 RKB-D850
&