Livrarea este gratuita in Bucuresti prin curier AVMall (daca comanda depaseste 299 ron), timpul de livrare este de 24-48 de ore, in cazul in care s-a facut confirmarea livrarii de catre AVmall.
Livrarea este gratuita pentru provincie prin Fan Curier (daca comanda depaseste 500 ron) timpul de livrare este de 24-48 de ore, in cazul in care s-a facut confirmarea livrarii de catre AVmall.
The RKB-850 and RKB-D850 are rated at 8 x 50 watts
RMS into 8 ohms all channels driven and can double
that output into 4 ohms as a result of their sophisticated,
efficient Class D design. The amplifiers are rugged and
extremely reliable. Yet, Rotel has gone further to maximize
long service life, utilizing dual thermostatically controlled
fans to exhaust heat away from the output modules
and power supply.
Both the RKB-850 and RKB-D850 feature input linking
through input A on the rear panel allowing the analog
or digital signal on input A to be routed to all three other
channels saving time and additional wiring. Analog input
A can also be summed to mono, allowing two channels
of summed stereo-to-mono output. If input A is set to
mono and the link through feature is used, all 8 channels
will share the same mono signal − ideal for covering larger areas where
normal stereo operation is not desired, for instance landscape audio or
A rear panel RS232 connection allows connection to
automation systems to provide control and feedback.
The RKB amplifiers also include 4 front panel trim pots
which allow easy level adjustment to balance zones.
Where the amplifiers differ is in the type of input options.
The RKB-850 is an analog input only amplifier with four
stereo pairs of RCA connectors. The RKB-D850 features
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.
The RKB-850 and RKB-D850 share many common
features including 12-volt triggers, 5-way speaker
binding posts, a buffered analog audio pre-output to
connect additional RKBs, and an IEC power receptacle
with detachable cord. Their 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
Specificatii Amplificator Putere Multicanal Rotel RKB-D850
Continuous Power Output
(20Hz-20kHz, <0.1% THD, 8 ohms) 50 watts / channel (8 ch driven)
Total Harmonic Distortion
(20Hz-20kHz, 8 ohms) < 0.08%
(60 Hz : 7 kHz, 4:1) < 0.08%
Damping Factor > 150
Input Impedance / Sensitivity 50k ohms / 0.6V
Amplifier Gain 30 dB
Frequency Response 20Hz - 20kHz +0dB/-1.4dB
Signal to Noise Ratio (IHF A) 108 dB
Crosstalk / Separation > 60 dB
Speaker Impedance 4 ohms minimum
Digital Section -
Signal to Noise Ratio (IHF A) 95 dB
Input Sensitivity -10 dBFS
Optical Digital Signals SPDIF LPCM (up to 192kHz 24bit)
EC: 120 Volts, 60 Hz
230 Volts, 50 Hz
Power Consumption 150 watts
Idle: 45 watts
Standby: < 0.5 watts
Dimensions (W x H x D) 430 x 97 x 424 mm
(17 x 3 7/8 x 16 3/4 ins)
Front Panel Height 2U (88.1mm, 3 1/2 ins)
Weight (net) 9.3 kg, 20.5 lbs.
Accessories Included Rack Mount Kit
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