Getting Started, AC Power and Control | Rotel RB-1572 specification

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Getting Started

Thank you for purchasing the Rotel RB-1562 or RB-1572 Stereo Power Ampliﬁer. When used in a high-quality music or home theater system, your Rotel ampliﬁer will provide years of musical enjoyment.

The RB-1562 and RB-1572 are sophisticated two-channel power ampliﬁers. Their Class D ampliﬁer circuitry, switching power supply, premium components, and Rotel’s Balanced Design ensure superb sound quality. High current capability allows the RB-1562 and RB- 1572 to drive difﬁcult speaker loads with ease.

The RB-1562 and RB-1572 are essentially identical units. They differ only in power output. In this manual the RB-1562 is most often depicted, but the RB-1572 operates in the same way.

Operating Features

•Two amplifier channels.

•User selectable power on/off configuration: manual or controlled by remote 12 volt trigger signal.

•Protection circuitry with front panel indicators.

•Dual binding post speaker outputs.

A Few Precautions

Please read this manual carefully. In addition to installation and operating instructions, it provides information on various system conﬁgurations. Please contact your authorized Rotel dealer for answers to any questions you might have. In addition, all of us at Rotel welcome your questions and comments.

Save the ampliﬁer shipping carton and packing material for future use. Shipping or moving the ampliﬁer in anything other than the original packing material may result in severe damage to your ampliﬁer.

Be sure to keep the original sales receipt. It is your best record of the date of purchase, which you will need in the event warranty service is ever required.

Placement

The ampliﬁer generates heat as part of its normal operation. The heat sinks and ventilation openings in the ampliﬁer are designed to disperse this heat. The ventilation slots in the top cover must be unobstructed. There should be 10 cm (4 inches) of clearance around the chassis, and reasonable airﬂow through the installation location, to prevent the ampliﬁer from overheating. Likewise, remember the weight of the ampliﬁer when you select an installation location. Make sure that the shelf or cabinet can support its weight.

AC Power and Control

AC Power Input 7

The ampliﬁer is supplied with the proper AC power cord. Use only this cord or an exact equivalent. Do not use an extension cord. A heavy duty multi-tap power outlet strip may be used, but only if it is rated to handle the current demand of the ampliﬁer.

Be sure the Power Switch 1 on the front panel of the ampliﬁer is turned off. Then, plug one end of the cord into the AC power connector 7 on the back panel of the ampliﬁer. Plug the other end into an appropriate AC outlet.

Your ampliﬁer is conﬁgured at the factory for the proper AC line voltage in the country where you purchased it (USA: 120 volts/60 Hz, Europe: 230 volts/50 Hz). The AC line conﬁguration is noted on a label on the back panel.

Note: Should you move your amplifier to another country, it is possible to configure your amplifier for use on a different line voltage. Do not attempt to perform this conversion yourself. Opening the enclosure of the amplifier exposes you to dangerous voltages. Consult a qualified technician or the Rotel factory service department for information.

If you are going to be away from home for an extended period of time, it is a sensible precaution to unplug your ampliﬁer.

Power Switch and Indicator 1

The Power Switch is located on the front panel. To turn the ampliﬁer on (or to activate either of the optional automatic power-on modes), push the switch in. The ring around the switch will light, indicating that the ampliﬁer is turned on. To turn the ampliﬁer off, push the button again and return it to the out position.

Protection Indicator 2

Thermal protection circuits protect the ampliﬁer against potential damage in the event of extreme or faulty operating conditions. Unlike many designs, the protection circuit of the RB-1562 and RB-1572

is independent of the audio signal and has no impact on sonic performance. Instead, the protection circuit monitors the temperature of the output devices and shuts down the ampliﬁer if safe limits are exceeded.

In addition, the ampliﬁers includes over-current protection which operates only when load impedances drop too low. This protection is independent for each channel and is indicated by the front panel Protection LED.

Should a faulty condition arise, the ampliﬁer channel at fault will stop playing and the Protection LED on the front panel will light.

If this happens, turn the ampliﬁer off, let it cool down for several minutes, and attempt to identify and correct the problem. When you turn the ampliﬁer back on, the protection circuit will automatically reset and the PROTECTION LED should go out.

In most cases, the protection circuitry activates because of a fault condition such as shorted speaker wires, or inadequate ventilation leading to an overheating condition. In very rare cases, highly reactive or extremely low impedance speaker loads could cause the protection circuit to engage.

Note: The Protection Mode LED also lights when the 12V Trigger system is being used and the amplifier is in Standby mode.

RB-1572 specifications

The Rotel RB-1572 is a high-performance stereo power amplifier, designed to meet the needs of audiophiles seeking superior sound quality in their music playback systems. This amplifier embodies Rotel's commitment to crafting high-fidelity audio equipment with a focus on performance and value.

One of the key features of the RB-1572 is its robust power output. With 120 watts per channel into 8 ohms and 200 watts per channel into 4 ohms, this amplifier is designed to drive a wide range of speakers with ease. This level of power ensures an immersive listening experience, ample enough to fill large rooms with dynamic and detailed sound.

The RB-1572 utilizes Rotel's proprietary Class AB amplification technology. This technology combines the benefits of both Class A and Class B operation, allowing for high efficiency and low distortion. The result is a smooth and warm sound that preserves the nuances and intricacies of the original recording. Additionally, the amp features a high-capacity power supply, which contributes to its dynamic performance by providing the necessary headroom for transient peaks in music.

Constructed with quality components, the RB-1572 features a toroidal transformer, ensuring low noise and high stability during operation. The amplifier also employs high-grade capacitors for improved power delivery and overall sound quality. The chassis is designed for optimal heat dissipation, ensuring long-term reliability without compromising audio performance.

Connectivity options abound with the RB-1572, including both XLR balanced and RCA unbalanced inputs, allowing for flexible integration into various audio systems. The linkage capability via trigger input and output ensures synchronization with other Rotel components, making it easy to build a cohesive audio setup.

User-friendly features such as a front-panel power button and an LED status indicator enhance the overall usability of the amplifier. Its sleek and elegant design makes it a visually appealing addition to any audio system, fitting seamlessly into modern home entertainment setups.

In conclusion, the Rotel RB-1572 is a well-engineered power amplifier, combining exceptional sound quality with high-performance specifications. Its cutting-edge technologies and robust build make it an attractive option for audio enthusiasts desiring a refined listening experience while maintaining value and reliability in their audio equipment.