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{ "id":823408361514, "title":"Rotel RKB850 8 Channel Power Amplifier","handle":"rotel-rkb850-8-channel-power-amplifier", "description":"\u003ch1\u003eRotel RKB850 8 Channel Power Amplifier\u003c\/h1\u003e\n\u003cp\u003e\u003cspan style=\"font-size: small;\"\u003eThe 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.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: small;\"\u003eBoth 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 commercial applications. 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.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: small;\"\u003eWhere 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 rack efficiency.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: small;\"\u003eSpecifications\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 100%;\" border=\"0\" cellspacing=\"0\" cellpadding=\"3\"\u003e\n\u003ctbody\u003e\n\u003ctr align=\"left\"\u003e\n\u003ctd class=\"desc\" valign=\"top\" width=\"50%\"\u003eModel\u003c\/td\u003e\n\u003ctd class=\"spec\" valign=\"top\" width=\"50%\"\u003eRKB-850\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"left\" bgcolor=\"#DFE4EC\"\u003e\n\u003ctd class=\"spec-box\" valign=\"top\" width=\"50%\"\u003eContinuous Power Output\u003cbr\u003e(20Hz-20kHz, \u0026lt;0.1% THD, 8 ohms)\u003c\/td\u003e\n\u003ctd class=\"spec-box\" valign=\"top\" width=\"50%\"\u003e50 watts \/ channel (8 ch driven)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"left\"\u003e\n\u003ctd class=\"sm-copy\" valign=\"top\" width=\"50%\"\u003eTotal Harmonic Distortion\u003cbr\u003e(20Hz-20kHz, 8 ohms)\u003c\/td\u003e\n\u003ctd class=\"sm-copy\" valign=\"top\" width=\"50%\"\u003e\u0026lt; 0.08%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"left\" bgcolor=\"#DFE4EC\"\u003e\n\u003ctd class=\"spec-box\" valign=\"top\" width=\"50%\"\u003eIntermodulation Distortion\u003cbr\u003e(60 Hz : 7 kHz, 4:1)\u003c\/td\u003e\n\u003ctd class=\"spec-box\" valign=\"top\" width=\"50%\"\u003e\u0026lt; 0.08%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"left\"\u003e\n\u003ctd class=\"sm-copy\" valign=\"top\" width=\"50%\"\u003eDamping Factor\u003c\/td\u003e\n\u003ctd class=\"sm-copy\" valign=\"top\" width=\"50%\"\u003e\u0026gt; 150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"left\" bgcolor=\"#DFE4EC\"\u003e\n\u003ctd class=\"spec-box\" valign=\"top\" width=\"50%\"\u003eInput Impedance \/ Sensitivity\u003c\/td\u003e\n\u003ctd class=\"spec-box\" valign=\"top\" width=\"50%\"\u003e100k ohms \/ 0.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"left\"\u003e\n\u003ctd class=\"sm-copy\" valign=\"top\" width=\"50%\"\u003eAmplifier Gain\u003c\/td\u003e\n\u003ctd class=\"sm-copy\" valign=\"top\" width=\"50%\"\u003e30 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"left\" bgcolor=\"#DFE4EC\"\u003e\n\u003ctd class=\"spec-box\" valign=\"top\" width=\"50%\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd class=\"spec-box\" valign=\"top\" width=\"50%\"\u003e20Hz - 20kHz, +0dB\/-1.4dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"left\"\u003e\n\u003ctd class=\"sm-copy\" valign=\"top\" width=\"50%\"\u003eSignal to Noise Ratio (IHF A)\u003c\/td\u003e\n\u003ctd class=\"sm-copy\" valign=\"top\" width=\"50%\"\u003e108 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"left\" bgcolor=\"#DFE4EC\"\u003e\n\u003ctd class=\"spec-box\" valign=\"top\" width=\"50%\"\u003eCrosstalk \/ Separation\u003c\/td\u003e\n\u003ctd class=\"spec-box\" valign=\"top\" width=\"50%\"\u003e\u0026gt; 60 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"left\"\u003e\n\u003ctd class=\"sm-copy\" valign=\"top\" width=\"50%\"\u003eSpeaker Impedance\u003c\/td\u003e\n\u003ctd class=\"sm-copy\" valign=\"top\" width=\"50%\"\u003e4 ohms minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"left\" bgcolor=\"#DFE4EC\"\u003e\n\u003ctd class=\"spec-box\" valign=\"top\" width=\"50%\"\u003ePower Requirements:\u003cbr\u003eUSA:\u003cbr\u003eEC:\u003c\/td\u003e\n\u003ctd class=\"spec-box\" valign=\"top\" width=\"50%\"\u003e120 Volts, 60 Hz\u003cbr\u003e230 Volts, 50 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"left\"\u003e\n\u003ctd class=\"sm-copy\" valign=\"top\" width=\"50%\"\u003ePower Consumption\u003c\/td\u003e\n\u003ctd class=\"sm-copy\" valign=\"top\" width=\"50%\"\u003e150 watts\u003cbr\u003eIdle: 40 watts\u003cbr\u003eStandby: \u0026lt; 0.5 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"left\" bgcolor=\"#DFE4EC\"\u003e\n\u003ctd class=\"spec-box\" valign=\"top\" width=\"50%\"\u003eDimensions (W x H x D)\u003c\/td\u003e\n\u003ctd class=\"spec-box\" valign=\"top\" width=\"50%\"\u003e430 x 97 x 424 mm\u003cbr\u003e(17 x 3 7\/8 x 16 3\/4 ins)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"left\"\u003e\n\u003ctd class=\"sm-copy\" valign=\"top\" width=\"50%\"\u003eFront Panel Height\u003c\/td\u003e\n\u003ctd class=\"sm-copy\" valign=\"top\" width=\"50%\"\u003e2U (88.1mm, 3 1\/2 ins)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"left\" bgcolor=\"#DFE4EC\"\u003e\n\u003ctd class=\"spec-box\" valign=\"top\" width=\"50%\"\u003eWeight (net)\u003c\/td\u003e\n\u003ctd class=\"spec-box\" valign=\"top\" width=\"50%\"\u003e9.3 kg, 20.5 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"left\"\u003e\n\u003ctd class=\"sm-copy\" valign=\"top\" width=\"50%\"\u003eAccessories Included\u003c\/td\u003e\n\u003ctd class=\"sm-copy\" valign=\"top\" width=\"50%\"\u003eRack Mount Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan style=\"font-size: small;\"\u003e \u003c\/span\u003e\u003c\/p\u003e", "published_at":"2018-04-06T09:33:40", "created_at":"2018-01-22T18:57:08", "vendor":"Rotel", "type":"Power Amplifier", "tags":["HiFi Separates","Power Amplifiers","Rotel","Stereo Power Amplifiers"], "price":3319000, "price_min":3319000, "price_max":3319000, "price_varies":false, "compare_at_price":null, "compare_at_price_min":0, "compare_at_price_max":0, "compare_at_price_varies":true, "all_variant_ids":[10128372006954], "variants":[{ "id":10128372006954, "product_id":823408361514, "product_handle":"rotel-rkb850-8-channel-power-amplifier", "title":"Default Title", "option1":"Default Title", "option2":null, "option3":null, "sku":"rotel-rkb-850", "requires_shipping":true, "taxable":true, "featured_image":null,"image_id":null, "available":true, "name":"Rotel RKB850 8 Channel Power Amplifier - Default Title", "options":["Default Title"], "price":3319000, "weight":0, "compare_at_price":null, "inventory_quantity":5, "inventory_management":null, "inventory_policy":"deny", "inventory_in_cart":0, "inventory_remaining":5, "incoming":false, "next_incoming_date":null, "taxable":true, "barcode":""}], "available":true,"images":["\/\/cdn.shopify.com\/s\/files\/1\/2577\/1494\/products\/rotel-rkb850-8-channel-power-amplifier-power-amplifier-2836073676842.jpg?v=1550656648"],"featured_image":"\/\/cdn.shopify.com\/s\/files\/1\/2577\/1494\/products\/rotel-rkb850-8-channel-power-amplifier-power-amplifier-2836073676842.jpg?v=1550656648", "options":["Title"], "url":"\/products\/rotel-rkb850-8-channel-power-amplifier"}

Rotel RKB850 8 Channel Power Amplifier

Product Description
R 33,190.00
Maximum quantity available reached.

Rotel RKB850 8 Channel Power Amplifier

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 commercial applications. 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 rack efficiency.

Specifications

 

Model RKB-850
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%
Intermodulation Distortion
(60 Hz : 7 kHz, 4:1)
< 0.08%
Damping Factor > 150
Input Impedance / Sensitivity 100k 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
Power Requirements:
USA:
EC:
120 Volts, 60 Hz
230 Volts, 50 Hz
Power Consumption 150 watts
Idle: 40 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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