RTI Control AMP-8-125 8 Channel DSP Matrix Amplifier – 125W / 70V-100V Commercial Audio Amplifier

The RTI AMP-8-125 DSP Matrix Amplifier is a high-performance commercial and hospitality audio amplifier engineered for flexible low-impedance and high-impedance speaker applications.

Featuring advanced DSP processing, configurable matrix routing, and ultra-efficient Cool Power® Class D amplification, the AMP-8-125 delivers powerful and reliable audio distribution for retail spaces, hospitality venues, offices, restaurants, conference facilities, and commercial AV environments.

Its compact 1U rack-mount design supports both traditional low-impedance loudspeakers and 70V/100V distributed audio systems, making it ideal for scalable professional audio installations.

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Professional Commercial Audio Amplification

The RTI AMP-8-125 is designed to provide exceptional flexibility for commercial and hospitality audio systems requiring multiple audio zones and advanced DSP optimisation.

The amplifier supports:

• Low impedance loudspeaker systems
• 70V/100V distributed audio systems
• Multi-zone commercial audio
• Hospitality AV environments
• Retail background music systems
• Restaurants and lounges
• Conference and meeting spaces
• Paging and announcement systems

Its advanced matrix routing allows effortless distribution of multiple audio sources to different audio zones throughout the property.

Flexible Multi-Zone Audio Distribution

The AMP-8-125 features a fully configurable DSP matrix architecture capable of routing multiple audio sources across independent zones.

Supported Configurations

• Four stereo low-impedance zones
• Eight mono low-impedance channels
• Four 70V/100V mono zones
• Mixed low-Z and high-Z installations

Multiple amplifiers can also be daisy-chained for expanded zone capability across larger commercial projects.

Powerful Class D Amplification

Built using advanced Cool Power® Class D amplifier technology, the AMP-8-125 delivers powerful audio performance with excellent energy efficiency and thermal management.

Amplifier Performance

• 125W per channel @ 4Ω / 8Ω
• 250W per channel @ 70V/100V
• Efficient low-heat operation
• Reliable continuous commercial performance

Its high power output ensures clear and dynamic sound reproduction even in demanding environments.

Advanced Built-In DSP Processing

The integrated DSP engine provides extensive audio tuning and configuration capabilities directly through the intuitive web-based interface.

DSP Features Include

• Multi-zone configuration
• Input mixing
• Priority and auto-ducking
• Input and output EQ
• High-pass filtering
• Speaker presets
• Delay configuration
• Volume restrictions
• Sine wave generator
• Wall-S1 controller configuration
• S/PDIF routing

This allows integrators to optimise audio performance for each installation environment.

Easy Configuration & Control

The RTI AMP-8-125 is designed for straightforward deployment and flexible control integration.

Control Options

• IP control via RJ45
• GPIO control functionality
• RTI integration support
• Third-party control system compatibility
• Browser-based web GUI setup
• LAN or Wi-Fi configuration access

GPIO controls support functions such as:

• Volume adjustment
• Standby mode
• Mute operation
• Trigger functions

Key Features

• 8-channel DSP matrix amplifier
• 125W per channel low-Z output
• 250W per channel 70V/100V output
• 1U rack-mount design
• Class D Cool Power® amplification
• Configurable low-Z and high-Z outputs
• Built-in DSP audio optimisation
• Web-based configuration interface
• Analog and digital audio source support
• Daisy-chain expansion capability
• IP and GPIO control options
• Rack mount and free-standing installation

Technical Specifications

Audio Inputs

Analog Inputs

• 8 RCA unbalanced stereo inputs
• 8 Phoenix balanced stereo inputs

Digital Inputs

• 1 Coaxial S/PDIF input

Audio Outputs

Output Configurations

• 4 stereo low-Z zones
• 8 mono low-Z channels
• 4 high-Z mono zones
• Mixed output configurations supported

Amplifier Specifications

Amplifier Type

• Class D Cool Power®

Output Power

Low Impedance Output

• 8 x 125W @ 4Ω / 8Ω

High Impedance Output

• 4 x 250W @ 70V / 100V

Power Sharing

• Up to 2 x 250W across each channel pair

Output Voltage

• 45 Vrms (Low-Z)
• 70V / 100V (High-Z)

Audio Performance

Signal-to-Noise Ratio

• 106dB A-weighted

• 20Hz–20kHz, 8Ω load

THD+N

• <0.05%
• 20Hz–20kHz
• 3dB below rated power

Frequency Response

• 20Hz–20kHz ±0.5dB
• 8Ω load

Protection Circuits

The AMP-8-125 includes comprehensive protection systems for long-term reliability.

Protection Features

• Short circuit protection
• DC protection
• Undervoltage protection
• Temperature protection
• Overload protection

Control & Connectivity

RTI & Third-Party Control

• IP (RJ45)
• GPIO (Phoenix connector)

Power Specifications

Power Supply

• UREC™ universal switch mode power supply
• Power Factor Correction (PFC)
• Standby converter

AC Input Voltage

• 100–240V~
• 50/60Hz

Power Consumption

• 150W

Standby Consumption

• <0.5W

Physical Specifications

Dimensions (W x D x H)

• 17.35” x 12.6” x 1.75”
• 440mm x 320mm x 44.5mm

Rack Size

• 1U rack height

Weight

• 8.4 lb (3.8kg)

Installation Options

• Rack mount installation
• Free-standing placement
• Rack-mount kit included
• Adhesive rubber feet included

Environmental Specifications

Operating Temperature

• +32°F to +104°F
• 0°C to +40°C

Warranty

• Three-Year Manufacturer Warranty (Parts & Labour)

Included in the Box

The RTI AMP-8-125 package includes:

• AMP-8-125 DSP Matrix Amplifier
• Power cord
• 6-pin Phoenix input connectors (4)
• 4-pin Phoenix output connectors (4)
• 8-pin Phoenix GPIO socket connector
• Rack-mount kit
• Adhesive rubber feet

Why Choose the RTI AMP-8-125?

Flexible Commercial Audio Deployment

Supports both low-impedance and 70V/100V loudspeaker systems within a single amplifier platform.

Advanced DSP Audio Optimisation

Comprehensive DSP controls allow precise tuning for commercial and hospitality environments.

Compact High-Power Design

Delivers exceptional audio performance within a compact 1U rack-mount chassis.

Scalable Multi-Zone Audio

Daisy-chain multiple units for larger installations with expanded zone capability.

Professional Integration Flexibility

Supports RTI and third-party control systems with IP and GPIO integration options.

Ideal Applications

The RTI AMP-8-125 is ideal for:

• Hotels and hospitality venues
• Restaurants and bars
• Retail environments
• Commercial offices
• Conference rooms
• Background music systems
• Paging and announcement systems
• Multi-zone AV installations

Request Trade Pricing

For professional installation support, trade pricing, or commercial audio project enquiries:

REQUEST TRADE QUOTE