User Guide

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Sample Output Configurations for Different Loudspeaker Loads

This table should help you select the appropriate output mode for a given loudspeaker load.

Figure 14. Loudspeaker load output configurations

Power Rating (20 - 20 kHz)

2 Ω

4 Ω

8 Ω

70 V

100 V

 

 

 

 

 

 

THD For Power Rating

 

<0.1% THD

 

1% THD

 

 

 

 

 

 

Mono Mode: 8 channels (per channel)

500 W

500 W

300 W

not available

not available

 

 

 

 

 

 

V-Bridge Mode: 4 channels (per channel)

500 W (1)

1000 W

1000 W

800 W

1000 W

 

 

 

 

 

 

I-Share Mode: 4 channels (per channel)

1000 W

500 W (1)

300 W (1)

not available

not available

 

 

 

 

 

 

Quad Mode: 2 channels (per channel)

1000 W (1)

2000 W

1000 W (1)

1600 W

2000 W

 

 

 

 

 

 

Maximum Rated Power, Total All Channels

 

 

4000 W

 

 

 

 

 

 

 

 

Peak Output Voltage (Mono/V-Bridge/Quad modes)

 

 

71 / 142 / 142 V

 

 

 

 

 

 

 

 

Voltage Gain (Mono/V-bridge/I-Share/Quad modes)

 

 

33 / 36 / 33 / 36 dB

 

 

 

 

 

 

Notes for Power Ratings

(1) Configuration not optimal/not recommended

 

 

 

 

 

 

 

 

For reference, the following two examples illustrate two different output configurations using RoomMatch™ array module loudspeakers. Front panel configuration settings are provided. While not covered in this documentation, ControlSpace® Designer™ software provides additional configurability to these examples. Further information on this software can be found on pro.Bose.com.

Configuration of a RoomMatch™ Four-Module Array (Example 1)

In this example, four full-range RoomMatch array modules are connected to one PowerMatch™ amplifier, arranged as follows:

(2)Bose® RoomMatch 7010 array module loudspeakers (70° H x 10° V)

(2)Bose RoomMatch 12020 array module loudspeakers (120° H x 20° V)

(1)Bose PowerMatch PM8500 configurable professional power amplifier

Figure 15. RoomMatch four-module array configuration

Note: All RoomMatch loudspeaker connections use Neutrik NL4 speakON-type cable connectors. Please refer to RoomMatch loudspeaker documentation for further details.

Front Panel Configuration Menu Settings:

1.MAIN MENU < CONFIG < Output Config

Set the output configuration for channels 1-8 to MONO mode.

2.MAIN MENU < DSP < Speaker Presets

For channels 1, 3, 5, and 7 set SERIES to “RoomMatch” and MODEL to “RM_Array LF.” For channels 2, 4, 6, and 8 set SERIES to “RoomMatch” and MODEL to “RM_Array HF.”

3.MAIN MENU < DSP < Array EQ

For each input channel (A-H) that is routed to an output channel, set the MODULES value to 4 and the V-Angle parameter to 60 degrees, which is the total vertical angle of the four shown modules. Ensure that the state of the Array EQ is toggled to ON.

Page 34  User Guide

English

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Image 34
Bose PM8500N manual Configuration of a RoomMatch Four-Module Array Example, Main Menu Config Output Config

PM8500N, PM8500 specifications

The Bose PM8500 and PM8500N are high-performance amplifiers designed for professional audio applications. They are part of Bose's renowned line of amplification products that combine cutting-edge technology with user-friendly operation, making them ideal for venues like auditoriums, conference centers, and houses of worship.

One of the standout features of the PM8500 is its power output capabilities. The PM8500 delivers an impressive 850 watts per channel at 4 ohms, providing robust sound reproduction for large spaces. Its efficient Class D amplification ensures high performance with low distortion, allowing audio professionals to achieve crystal-clear sound even at high volume levels.

The PM8500N model enhances these features with advanced network control and monitoring capabilities. Integrated with Bose's proprietary AmpLink technology, the PM8500N allows for seamless integration within a digital audio network. This enables users to manage multiple units from a central location, making it easier to adjust settings, monitor performance, and troubleshoot potential issues in real-time.

Both models come equipped with a DSP (Digital Signal Processing) that includes various EQ presets and advanced audio tuning options. This feature allows users to optimize sound for specific environments or applications, ensuring the best audio experience possible. The built-in protection circuitry safeguards against overheating, short circuits, and overloading, ensuring reliable operation during demanding performances.

In terms of connectivity, the PM8500 and PM8500N models offer multiple input options, including balanced XLR and 1/4-inch TRS inputs, making them versatile for various audio sources. Additionally, they come with power-saving features, such as auto power down, further increasing their efficiency in energy consumption.

In summary, the Bose PM8500 and PM8500N amplifiers represent the pinnacle of professional audio amplification technology. With their powerful output, comprehensive connectivity options, advanced DSP features, and robust build quality, they are well-suited for any high-demand sound reinforcement application. Whether in a concert hall or a corporate setting, these amplifiers deliver reliable performance and superior sound quality, solidifying Bose's reputation as a leader in the audio industry.