RKB-2100Power Amplifier

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Troubleshooting

Most difficulties in audio systems are the result of poor or wrong connections, or improper control settings. If you encounter problems, isolate the area of the difficulty, check the control settings, determine the cause of the fault and make the necessary changes. If you are unable to get sound from the RKB-2100, refer to the suggestions for the following conditions:

Front Panel Power Indicator Is Not Lit

No main power to the RKB-2100. Check AC power connections at the amplifier and the AC outlet. Check the front panel power switch. Make sure that it is set to the ON position. If using signal sensing auto power-on, make sure that a signal is present at the inputs. If using 12V trigger power-on, make sure that a trigger signal is present at rear panel +12V TRIGGER connector.

No Sound

If the amp is getting AC power, but is pro- ducing no sound, check the PROTECTION INDICATOR on the front panel. If lit, see be- low. If not, check all of your connections and control settings on associated components. Make sure that your input connections and speaker connections match your selected stereo/mono configuration.

Protection Indicator Is Lit

The front panel PROTECTION INDICATOR lights when the RKB-2100 protection circuits have shut off the amplifier. Typically, this oc- curs only when the ventilation openings are blocked, when there is faulty speaker wiring, or after a period of extreme use. Turn off the system and wait for the amp to cool. Then push the front panel power switch in and out to reset the protection devices. If the problem is not corrected or reoccurs, there is a problem with the system or the amplifier itself.

Specifications

Continuous Power Output into 8 ohms (20-20k Hz, < 0.03% THD)

100 watts/ch into 8 ohms, all channels driven

Continuous Power Output into 4 ohms (DIN 1 kHz,1.0% THD)

170 watts/ch into 4 ohms, all channels driven

Total Harmonic Distortion (20Hz-20kHz, 8 ohms) Continuous rated power: < 0.03% One-half rated power: < 0.03% 1 watt power: < 0.03%

Intermodulation Distortion (60 Hz : 7 kHz, 4:1)

< 0.03%

Damping Factor

(20-20,000 Hz, 8 ohms)

>200

Input Impedance

20 k Ohms

Input Sensitivity

1.0 volt

Amplifier Gain:

29 dB

Input Overload Level 5.0 volt

Peak Current

> 60 A

Frequency Response (±1 dB)

4Hz-100kHz

S/N Ratio (IHF A)

120 dB

Crosstalk/Separation

> 70 dB

Speaker Impedance

4 ohms minimum

Auto Turn On Level (with all inputs) 3 mV input signal

Power Requirements

USA: 120 Volts, 60 Hz

Europe: 230 Volts, 50 Hz

Power Consumption

450Watts Idle: 40 Watts Standby: 2.3 Watts

Dimensions (W x H x D)

(not including rack adaptors) 430 x 144 x 328 mm

16.9 x 5.7 x 12.9 in

Weight (net)

11.2 kg, 25 lb.

Panel Height

3U, 132.6 mm/5.2 in

When sizing openings in custom cabinets, mea- sure the unit to be installed and/or allow at least 1 mm clearance on all sides for unit to unit toler- ances.

All specifications are accurate at the time of print- ing. Rotel reserves the right to make improve- ments without notice.

Rotel and the Rotel HiFi logo are registered trade- marks of The Rotel Co, Ltd., Tokyo, Japan.

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Rotel RKB-2100 owner manual Troubleshooting, Specifications, Front Panel Power Indicator Is Not Lit, No Sound

RKB-2100 specifications

The Rotel RKB-2100 is a powerful two-channel amplifier designed for serious audio enthusiasts who demand uncompromised sound quality from their home theater or audio systems. Rotel, a name synonymous with high-fidelity audio equipment, has crafted the RKB-2100 to blend innovative technology with outstanding performance, making it a standout choice in the amplifier market.

At the heart of the RKB-2100 is its robust Class AB amplifier design, which delivers an impressive 100 watts per channel into 8 ohms. This power ensures that even the most demanding speakers can be driven with authority and finesse, providing a dynamic listening experience across a wide range of music genres and movie soundtracks. The amplifier's ability to maintain clarity and detail at high volumes sets it apart from many competitors, making it an ideal choice for both critical listening and everyday use.

One of the defining features of the RKB-2100 is its advanced power supply system, which includes a custom-designed toroidal transformer. This transformer minimizes hum and noise while providing stable power to the amplifier's output stage, ensuring consistent performance even during peak demands. Additionally, Rotel employs high-quality capacitors and tightly regulated power circuits, which further enhance the amplifier's efficiency and fidelity.

Another noteworthy characteristic of the RKB-2100 is its versatility. It boasts a variety of inputs, including both balanced (XLR) and unbalanced (RCA) connections, allowing it to integrate seamlessly into diverse audio setups. This ensures that whether you're connecting it to a high-end preamplifier or using it as part of an expansive home theater system, the RKB-2100 can accommodate your needs.

The RKB-2100 also features Rotel's proprietary technology, known as the "balanced circuit design," which helps to reduce noise and interference while preserving the integrity of the audio signal. This design is particularly beneficial in settings where long cable runs are inevitable, as it ensures that the audio quality remains pristine regardless of distance.

In conclusion, the Rotel RKB-2100 is a high-performance amplifier that embodies the brand’s commitment to excellence in sound reproduction. With its powerful output, sophisticated power supply, versatile connectivity options, and advanced noise-reduction technologies, the RKB-2100 stands out as an exceptional choice for audiophiles and home theater enthusiasts alike, promising an exhilarating listening experience that brings music and movies to life.