MULTI-ROOM SYSTEM CONTROLLER RMZ-955

AC Power

Multiple controller systems require handling AC connections in a way that allows any zone to “power up” or “power down” the system. In other words, there must be a provision for zones con- nected to additional RMZ-955 controllers to control the system’s switched AC outlets.

A special feature of the RMZ-955, called “AC Link” simplifies the installation of multi-controller systems with a simple control line connection between units for AC control.

“power down” command is given from any zone, the RMZ-955 controllers go into Standby mode, the rear panel switched AC outlets are shut off, and this control signal goes to 0V.

This external trigger requires the same 3.5 mm stereo mini-jack as the “AC Link” connections. The “tip” of the connector carries the +5V DC control voltage.

Manual AC Override

There is a provision to manually override the “AC Link” control of the switched outlets. While not common, there may be custom system configurations where being able to manually power up all of the switched outlets and components connected to them.

AC Connections

Plug all RMZ-955 controllers into unswitched AC outlets, provid- ing a constant AC supply.

Plug all source components into the switched outlets located on the rear panels of the RMZ-955 controllers. As in a single-con- troller system, the recommended approach is to use a Rotel RLC- 900 power conditioner/switcher in conjunction with the first RMZ-955’s rear panel outlets. This allows the first RMZ-955 to handle all AC switching for the system.

With the “AC Linking” feature, it is also possible to plug source components into any switched outlet on the rear panel of any RMZ-955. All of these outlets are controlled in unison. When the system is “powered up” from any zone, the switched outlets on the first RMZ-955 and all other controllers are turned on. When a “power down” command is sent, all RMZ-955’s go into standby and their rear panel switched outlets are turned off.

AC Link

Unified AC control in multi-controller systems is achieved by a special “AC Link” connection from the first RMZ-955 to the sec- ond and so on down the line. This connection uses standard 3.5 mm stereo mini-jacks at both ends of a 3-conductor cable.

Note: It is essential to use a stereo mini-jack for the “AC Link” connection between controllers (such as Radio Shack #274-389). Do not substitute a mono 2-conductor cable.

To make the connection, plug one end of the 3.5 mm stereo cable into the 3.5 mm jack labeled “Link Out” on the first RMZ-955. Then plug the other end of the cable into the jack labeled “Link In” on the second RMZ-955. Then link the second RMZ-955 by connecting its “Link Out” to the third RMZ-955’s “Link In” jack with another cable. And, so on until there is an “AC Link” con- nection between all RMZ-955 controllers.

External 5V Trigger: Once you have completed all of the “AC Link” connections, the “Link Out” connector on the last RMZ-955 is still available. This jack can provide a +5V D.C. control voltage that could be used to activate external devices in an elaborate custom system. When the Rotel system is activated from any zone, this control signal goes to +5V. When the total system

To enable the manual override, connect Pin 1 and Pin 6 of the rear panel TX FORMAT jumper block with a jumper wire. As long as these two pins are connected, the switched AC outlets on all RMZ-955’s will be powered on. When the two pins are uncon- nected, control of the AC outlets will revert to standard control from the zones, depending on whether the system has been acti- vated from a zone or not.

In practice, the manual override jumper described above would be replaced with a simple single-pole switch connected be- tween Pin 1 and Pin 6 of the “TX-FORM” block. When the switch is closed, manual override is active. When the switch is open, activation of the AC outlets reverts to standard zone control.

TX-FORMAT

TX-FORMAT

1 2 3 4 5 6

 

1 2 3 4 5 6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

To manually turn on all

For automatic system

switched AC outlets, connect

control of switched AC

pins 1 & 6 with a jumper

outlets, remove jumper

or closed switch

or open switch

Note: In multi-controller systems, Pin 6 must be connected from the first controller to the Pin 6 on the next, and so on daisy- chainging all RMZ-955s to enable the manual override.

Source Connections

Multi-controller systems share the same four source compo- nents. Therefore, it is necessary to pass the signal from each source to all of the RMZ-955 controllers in a system.

Connect all sources to the first RMZ-955 per the instructions as shown Installation: RMZ-955 Controller on page 6.

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Rotel RMZ-955 operation manual AC Power, Manual AC Override, AC Connections, AC Link
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RMZ-955 specifications

The Rotel RMZ-955 is an advanced power amplifier designed to deliver high-quality audio performance and exceptional reliability for a variety of sound systems. As part of Rotel's distinguished lineup, this amplifier embodies the brand's commitment to engineering excellence and audio fidelity.

One of the standout features of the RMZ-955 is its robust power output. With a rating of 95 watts per channel into 8 ohms, the amplifier is capable of driving demanding speakers with ease, ensuring a dynamic listening experience. The amplifier employs Rotel’s proprietary Class AB design, which strikes a balance between the efficiency of Class D and the warmth of Class A amplifiers. This results in a rich, detailed sound reproduction while maintaining high levels of performance across a varied frequency range.

In terms of build quality, the RMZ-955 showcases Rotel's dedication to craftsmanship. The chassis is constructed from heavy-duty materials that provide both durability and vibration isolation, which can significantly influence audio clarity. Furthermore, the internal components are carefully selected to contribute to the amplifier's overall performance, ensuring that every sonic detail is preserved.

The RMZ-955 is equipped with advanced technologies to enhance user experience and versatility. It features a comprehensive array of inputs, including balanced XLR and unbalanced RCA connections, allowing for seamless integration into various sound systems. Additionally, the amplifier supports both stereo and bridged modes, offering flexibility for different setups, whether for home theater systems or dedicated audio environments.

Thermal management is another critical aspect of the RMZ-955's design. The amplifier includes a sophisticated heat dissipation system that ensures stable operation even during extended listening sessions. This is particularly beneficial for users who demand high performance from their audio equipment without compromising on reliability.

The Rotel RMZ-955 also comes equipped with protective circuitry, which safeguards the unit against overheating, short circuits, or overload conditions. This ensures longevity, allowing users to enjoy high-quality sound without worrying about potential damage to the amplifier or connected speakers.

In summary, the Rotel RMZ-955 stands out as a powerful, versatile, and reliable power amplifier designed for audiophiles and casual listeners alike. Its blend of advanced technologies, premium components, and thoughtful design elements makes it a worthy addition to any high-fidelity audio system, delivering an unparalleled listening experience that Rotel has been renowned for over the years.
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