AC Power Input, Power Switch Indicator | Rotel RMB-1076 instruction

RMB-1076Six Channel Power Ampliﬁer

AC Power and Control

AC Power Input -

The RMB-1076 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 RMB-1076.

Be sure the Power Switch on the front panel of the RMB-1076 is turned off. Then, plug one end of the cord into the AC power connector

-on the back panel of the ampliﬁer. Plug the other end into an appropriate AC outlet.

Your RMB-1076 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 RMB-1076 to another country, it is possible to conﬁg- ure your ampliﬁer for use on a different line voltage. Do not attempt to perform this conversion yourself. Opening the enclosure of the RMB-1076 exposes you to danger- ous 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 12

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 LED indicator above 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.

Auto Turn On/Off Mode Selector 9

The RMB-1076 provides three options for manual or automatic power on/off operation. These modes are selectable using a three-posi- tion slide switch on the back panel:

•With the switch in the OFF position, the ampliﬁer is turned on or off manually us- ing the front panel power switch. Use this mode if you are using a switched AC outlet to control power to the ampliﬁer.

•With the switch in the SIGNAL SENSING position, the ampliﬁer turns on automatically when a signal is sensed at the inputs. The ampliﬁer will go into standby mode with no signal. The front panel power switch overrides this function. It must be ON for the signal sensing to work. Turning the switch OFF cuts power to the ampliﬁer, regardless of whether or not a signal is present.

•With the switch in the 12V TRIG. position, the ampliﬁer is turned on automatically when a 12 volt trigger signal is applied to the 3.5mm jack to the left of the switch. The ampliﬁer will go into standby mode with no signal if the +12 volt signal is not present. The front panel POWER SWITCH overrides this function. It must be ON for the +12V trigger to work. Turning the switch OFF cuts power to the ampliﬁer, regardless of whether or not a trigger signal is present.

+12V Trigger Input

and Output 8

The jack labeled IN is for connecting the 3.5mm Plug/Cable carrying a +12 volt trigger signal to turn the ampliﬁer on and off. To use this feature the adjacent slide switch must be placed to the left position (see previous section). This input accepts any control signal (AC or DC) ranging from 3 volts to 30 volts.

The jack labeled OUT is for connecting another 3.5mm plug/cable to provide a 12V trigger signal to other components. The 12V output signal is available whenever a +12 volt trigger signal is applied to the IN connector.

Protection Indicator 3

Thermal and protection circuits protect the am- pliﬁer against potential damage in the event of extreme or faulty operating conditions. Unlike many designs, the RMB-1076’s protection cir- cuit 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 RMB-1076 includes over- current protection which operates only when load impedances drop too low. This protection is independent for each of the three pair of channels and is indicated by the front panel

PROTECTION LED.

Should a faulty condition arise, the ampliﬁer channel at fault will stop playing and the PRO- TECTION 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.

Stereo Mode Selection

It is useful to think of the RMB-1076 as three stereo ampliﬁers in a single chassis.

•Stereo mode: Conventional 2-channel stereo operation for a pair of ampliﬁer channels. Minimum speaker load: 4 ohms.

Input Select Switches 6

A rear panel switch adjacent to the inputs can select LINK to be On or Off for the ﬁrst pair of ampliﬁer channels.

For Stereo mode: Slide the switch as- sociated with the desired pair of ampliﬁer channels to the right or OFF position. Use both LEFT and RIGHT input connectors, and connect one speaker to each pair of speaker connectors.

NOTE: For groups “B” and/or “C”, you can also place the INPUT SELECT switch to the ON position for Stereo mode. This routes the input signals from the “A” group

RMB-1076 specifications

The Rotel RMB-1076 is a powerful and versatile multi-channel power amplifier designed for audiophiles seeking to elevate their home theater and music listening experiences. With its 7-channel configuration, it delivers robust performance, versatility, and a wealth of modern technologies that enhance its operation.

One of the standout features of the RMB-1076 is its impressive power output. Each channel is capable of delivering 75 watts per channel in 8 ohms, and a robust 120 watts per channel at 4 ohms. This ensures that it can drive a wide variety of speakers efficiently, providing plenty of headroom for dynamic audio content. The amplifier's design emphasizes stability and reliability, making it suitable for both high-impedance and low-impedance speaker configurations.

Rotel engineers have integrated proprietary Class AB amplification into the RMB-1076, which combines the efficiency of Class A with the power of Class B. This design approach minimizes distortion while ensuring that the amplifier produces an accurate and clean audio signal, allowing for a pure listening experience. The transformer-driven design also plays a crucial role, with a high-quality toroidal transformer providing excellent energy transfer and current delivery.

Another key characteristic of the RMB-1076 is its advanced input section, which accepts both balanced XLR and unbalanced RCA connections. This versatility ensures compatibility with a variety of audio sources while minimizing noise and preserving signal integrity. The amplifier also features a DC triggering system, allowing it to power on and off in conjunction with other devices in your home theater setup.

Thermal management is another vital aspect of the RMB-1076. It is equipped with large heat sinks and intelligent cooling technology that ensures the amplifier operates efficiently without overheating, even during extended use. This feature adds to its reliability and longevity, making it a solid investment for serious home theater enthusiasts.

The build quality of the Rotel RMB-1076 is exemplary, with a solid chassis designed to reduce vibration and maintain signal clarity. Its aesthetic appeal, combined with high-grade components, reflects Rotel’s commitment to quality and performance.

In summary, the Rotel RMB-1076 is a cutting-edge multi-channel power amplifier that combines robust power capabilities, advanced amplification technology, and thoughtful design elements. Whether for home theater use or high-fidelity music playback, it is engineered to deliver an unparalleled audio experience.