PLENA matrix - Surprisingly flexible. Powerful control.


PLENA matrix - Surprisingly flexible. Powerful control.

Flexible and powerful, the PLENA matrix is all about superior audio performance in an easy-to-use contemporary package.




Flexibility meets performance

The advanced features of the PLENA matrix Digital Sound System enable users to achieve superb audio performance with wireless control across up to eight output zones. With audio quality tailored for a wide range of applications — including live music, business music, high-demand speech environments and zone announcement — the PLENA matrix System delivers full featured digital audio control, with maximum flexibility and reliability.

Wireless control across multiple zones

Specially designed for versatility and ease of use, the PLENA matrix System enables users to control the audio settings and adjust volume levels wirelessly via an iPad or iPhone app.

The PLM 8M8 PLENA matrix 8-channel DSP Matrix Processor, the heart and soul of the PLENA matrix System, provides complete control over the audio configuration and signal processing. Users can simply walk into a particular zone and confidently match the audio quality to specific requirements — from live and background music to high demand speech environments.

Proven, future-proof innovation for cost savings

Innovative design and economical advantages go hand in hand in the PLENA matrix System. The PLENA matrix Class D Power Amplifiers feature an Auto Standby mode that — when activated by Bosch motion sensors in output zones that are unoccupied — helps to generate cost savings of up to 80% as compared with standard amplifiers. And by reducing overall power consumption, the environmental impact is significantly reduced.




Straightforward setup and configuration

With its single-cable approach, PLENA matrix enables efficient and quick system setup. The ‘Amp link’ feature and daisy chaining of call stations and wall panels, dramatically reduces installation costs.

Wireless control via IOS mobile devices

Wireless control via the iOS app on an iPad, iPod or iPhone is integrated for both the DSP processor and amplifiers. The user need simply select a particular zone or channel to adjust the mix levels and master volume. The app provides freedom of movement for the operator and flexibility when choosing operating panel location during installation.

Powerful digital signal processing

A PC software graphic user interface that is designed around the needs of the installer and end-user. Although straightforward and easy to understand, the amplifier and processor DSP feature set is more powerful than competing alternative solutions. The software allows for the easy upload of pre-stored scene settings and can also be password protected.

Superior sound quality

Maximum audio control ensures premium sound. Input controls include multi-band equalizing, gain control, and dynamic range compression on each input. Output control includes multi-band equalizing, filtering, dynamic range compression, delay, and limiting, plus the ability to mix several inputs for up to eight outputs in real time.

Intelligent energy management

Intelligent and environmentally friendly, Bosch motion detectors enhance amplifiers with a smart “Auto-Standby” mode when zones are inactive. This reduces both power consumption and operating expenses while increasing amplifier life.




Versatile capabilities at your fingertips:

Full-featured DSP capabilities

The PLENA matrix System brings the benefits of the latest DSP technology to the fore. All DSP features of the PLENA matrix System can be accessed easily through a user-friendly user-friendly Windows GUI that searches the network automatically so there is no need to remember IP addresses. The Windows GUI is designed to give installers maximum control over the setup, while the iPad/iPhone GUI is designed for simplicity and ease of use for the end user. Both give end users the ability to select their own background music source and mix any microphone/line input without affecting other zones in the system.

Quality sound system solution for all types of applications

Bosch’s dedication to excellence and focus on quality is evident throughout the PLENA matrix System — from intuitive configuration interfaces and streamlined installation through simplicity of cabling, to its power-packed acoustic capabilities.

The advanced capabilities of the PLENA matrix system include:

  • Input mixing and zone level control
  • Selection of background music source
  • Phantom power
  • HPF, Pad
  • Input Dynamic Range Compression
  • Input (5 bands) and output (7 Bands) parametric EQ
  • Bosch speaker library
  • Output assignment
  • Output dynamic range compressor
  • Crossover, delay, limiter
  • Zone output level controller, priority
  • Call station zone groups and announcement priorities
  • Chimes
  • Ducking levels
  • Override and tone set up
  • Password protection, tailored user and zone set up
  • Fault and thermal monitorin
  • Channel mute and system mute
  • Dynamic bass enhancement
  • Auto and manual standby mode



Users will appreciate the powerful, wireless control capabilities of the PLENA matrix System, and be surprised at its flexibility across vertical applications such as gyms, small hotels, restaurants, retail spaces, bars, cafés, schools, recreational and sports facilities, churches, warehouses, office buildings, boardrooms, meeting rooms, conference facilities, small theme parks, and museums… Whether it is background or foreground music or clear voice announcement services, the PLENA matrix has every angle covered. A few examples:


There is a lot going on in your average gym these days. A yoga class in one studio, a squash game in another, a Zumba class upstairs and people hanging out in the restaurant and café. The PLENA matrix can handle it all with superbly tailored voice announcements and professional-level audio sound per zone.

With its stylish design and convenient iPad control, the PLENA matrix is all about the user experience: control a source selection from your iPad during the yoga class; page some extra help for the front desk or tap the wall station to start up the pre-game soundtrack. And the best part? Thanks to its prime energy-saving features, it pays for itself in the long run.

Small Hotel

Small hotels must provide the same service level as larger chains – just on a different scale. In this case, the highly flexible PLENA matrix is an ideal option for audio control. With sound, live speech, voice announcements and mixing in up to 8 zones, you can manage all your audio requirements in one easy-to-use package. Besides superb background and foreground music throughout the hotel, you can make announcements, use the system for small conferences, meetings or parties, and customize the sound in the restaurant, bar and lounge.


The right type of background or live music can make or break a dining experience. In popular spots, a quality audio and voice announcement system that can be heard loud and clear in noisy bars, dining areas and waiting areas is essential to set the right mood as well to get the guests to their tables and keep the waiting list short. In a busy restaurant with different sections and dining rooms, this can be challenging. But not for the PLENA matrix. This stylish system packs enough powerful audio quality to hit exactly the right notes for the perfect dining experience.