Features

Thank you for purchasing an Integra MZA-4.7 Multi-Zone Ampliﬁer.

Please read this manual thoroughly before making connections and plugging in the unit.

Following the instructions in this manual will enable you to obtain optimum performance and listening enjoyment from your new Multi-Zone Ampliﬁer.

Please retain this manual for future reference.

Multi-Zone, Multi-Source, Video Switching

The MZA-4.7 has four separate preampliﬁers and ampli- ﬁers, providing 4 zones of independent yet integrated control.

There are seven stereo sources (S1 - S7) and an eighth mono source (S8) typically used for paging applications. Each zone has an eight-source composite video switcher, so monitor screen’s in four different rooms may display any of the eight sources (S1 - S8).

Preampliﬁers and Outputs

Each zone has bass, treble, balance and loudness control. These are accessed either from the front panel or IMC (Integra Music Center) program.

The preampliﬁer output volume may be independent of the ampliﬁer volume, or made to track the ampliﬁer with an adjustable offset (± 20dB). The tracking feature is ideal for passive subwoofer control, while the indepen- dent volume feature is useful for limited control in closecoupled rooms.

A useful protection feature is “Maximum Volume limit- ing.” This limits the maximum volume of either the ampliﬁer or preampliﬁer.

A MZA-4.7 may receive IR directly from the front panel receiver or via the two “Controller Interface” connec- tions.

There are zone speciﬁc IR commands and also a set of global IR commands.

The commands are: ON, OFF, Standby (toggling), Mute, Amp Volume Up, Amp Volume Down, Pre Volume Up, Pre Volume Down, Source Selects, On with Source Spe- ciﬁc commands.

The Global commands also include PRESET1 - PRE- SET 6, Alarm Enable, Alarm OFF, and 5 minute Sleep.

Real Time Clock

The MZA-4.7 is equipped with a real time clock. The ampliﬁer may be set up to function as an alarm clock, so that at 6.30am in the morning 5 days a week, the master bedroom zone could be made to turn on, select tuner, and go to a speciﬁc volume. Multiple Alarms are feasible (max of 6) However the Alarm Enable & OFF commands act upon all programmed Alarms.

The clock continues to operate typically > 48 hours with- out power – more than enough to keep the time current during lengthy power outages.

Ampliﬁer Power, Protection, and Clipping Indicators

50 Watts RMS per channel into 8 ohms, capable of driv- ing into 6 ohms.

The ampliﬁers are protected against short-term output shorts.

The front panel zone indicators will ﬂash red when the zone ampliﬁers are overdriven into clipping.

Thermal Control

There are three progressive levels of thermal control:

•An internal fan is turned on to aid cooling.

•The ampliﬁer volume is reduced 20dB.

•The ampliﬁers are shutdown until the temperature reduces below the ﬁrst level.

Care should be taken to ensure adequate ventilation – see “Important Safety Instructions” on page 2.

USB, RS232 and IR Control

The MZA-4.7 may be controlled and monitored via either the front Panel USB or rear panel RS232 serial interface.

In multi ampliﬁer installations where the ampliﬁers are interconnected using an expansion bus cable, only one USB or RS232 connection is required to control the stack of ampliﬁers.

IR Emitter Ports

There are 4 Buffered IR emitter Ports.

Two IR ports have routing, and are linked to their respec- tive “Controller Interface” ports. These ports control zone speciﬁc source components. Two IR ports are the sum of both IR sources; these control the All zone source components.

Presets and Paging

There are six ampliﬁer presets and a page preset. Presets 1 - 6 are momentary and cause the ampliﬁer to go to a predetermined setup, i.e. standby, volume & source selection.

The presets may also be programmed with event sched- uling, and are used by the alarm clock.

The “Page Preset” mode is for paging applications and is invoked by a contact closure between the “0V” and the “PG” terminals. When the contact closure is released the ampliﬁer zones return to their previous states.

Zone Linking

A zone may be programmed to link one other zone. Zone linking ties the source selection together. It may also tie the volume, and standby.

This is useful for closely coupled audio areas where it is

MZA-4.7 specifications

The Integra MZA-4.7 is a sophisticated audio amplifier designed to deliver exceptional sound performance while providing versatile functionality for audiophiles and casual listeners alike. Engineered by Integra, a brand known for its commitment to high-quality audio technology, the MZA-4.7 integrates a range of cutting-edge features that make it a standout choice for home theater enthusiasts and music lovers.

One of the key features of the Integra MZA-4.7 is its multi-zone capability, allowing users to distribute audio across different rooms or areas of their home. This includes independent volume control and source selection for each zone, enabling seamless entertainment throughout the living space. This flexibility makes it suitable for larger homes or venues where tailored audio experiences are essential.

The MZA-4.7 is equipped with advanced amplification technologies, including high-current amplification that ensures precise sound reproduction across various frequency ranges. With a power output of 100 watts per channel, it provides ample power to drive a wide range of speakers, ensuring a dynamic listening experience. The amplifier supports multiple speaker configurations, accommodating both stereo and multi-channel setups.

In terms of connectivity, the Integra MZA-4.7 features a full suite of inputs and outputs, including HDMI, RCA, and balanced XLR connections. This ensures compatibility with various audio sources, such as televisions, streaming devices, and traditional media players. Additionally, the amplifier supports high-resolution audio formats, enabling users to enjoy their favorite tracks in the best possible quality.

The device also incorporates advanced digital signal processing (DSP) technology, allowing for customizable audio settings and room calibration. This feature ensures optimized sound delivery based on the unique characteristics of the listening environment, providing an immersive audio experience tailored to individual preferences.

Moreover, the MZA-4.7 supports modern streaming protocols, making it easy to access online music services and integrated home automation systems. With smartphone control capabilities and support for voice assistants, users can enjoy convenient operation from anywhere in their home.

In summary, the Integra MZA-4.7 is a high-performance audio amplifier that combines multi-zone functionality, powerful amplification, versatile connectivity, and advanced audio processing technologies. Its thoughtful design and robust features make it an ideal choice for anyone looking to elevate their audio experience, whether at home or in a professional setting.