Opus Audio System Electronics
Integrated Studio Components

System
Electronics

The supporting electronics behind the Opus system approach — from direct injection and system control to studio-grade dual mono amplification. Designed for signal integrity, stability and real-world professional use.

Products 3 core components
Focus Control, drive, interfacing
Application Studio & integrated systems
At a glance

DI-1000 direct active interfacing

HD Series dual mono studio amplification

XS-134 modular system control and metering

Designed for integrated professional monitoring systems

01

DI-1000

Direct active interfacing between Opus systems and instruments or mixers.

02

HD Series

Dual mono Class A/B studio amplification with a long professional heritage.

03

XS-134

Modular active systems control with metering, protection and long-run drive capability.

01
Direct Injection

DI-1000 Direct Injection Processor

The DI-1000 is designed to provide direct active interfacing between Opus systems and instruments or mixers without sacrificing sound quality. It also incorporates the renowned Edge tone shaping facility, adding presence when required.

With comprehensive input and output level matching, plus phase and earth correction, it can drive long cable runs with negligible loss while remaining practical in real-world use.

  • Transformerless design
  • Level matching
  • Edge tone shaping
  • Phase correction
  • Active parallel output
  • Ground lift
  • 3 power options

Configuration: Mono

Input impedance: 10k Ohms

Signal to noise ratio: > 100dB

Power options: Internal battery / mixer phantom power / external DC

Battery life: > 24 hours continuous

DI100 Direct Injection Processor front and rear
HD Series Studio Power Amplifier front and rear
02
Studio Amplification

HD Series Studio Power Amplifier

The Opus High Definition Series are dual mono Class A/B topology studio amplifiers with a 40-year heritage, developed and refined in real-world professional applications.

Used with high quality professional loudspeakers, the HD Series is designed to enhance performance and reliability. Within the wider Opus integrated studio monitoring approach, these amplifiers are intended to reveal intimacy, precision and dynamic control.

The design is directly coupled to the loudspeaker terminals with no relays or inductors in the signal path, helping deliver a very high damping factor across the full audio spectrum.

HD 500 Dual Mono: 500W ~ 4Ω / 350W ~ 8Ω

HD 1250 Dual Mono: 1250W ~ 2Ω / 900W ~ 4Ω / 625W ~ 8Ω

Format: 2U × 510mm depth

Weight: 30–35kg

Warranty: 6 years

03
System Control

XS-134 Controller

The XS-134 is a modular active systems controller for stereo 2-way or mono 3/4-way use. It combines high headroom, RF suppression and a microprocessor-controlled auto-unmute facility to protect the system during power-on.

Easily changed filter cards employ proprietary asymmetric filter circuits, while perfect phase coherence and low distortion help define the wider Opus system character. Each input and output has a bar graph meter calibrated to correspond with the associated HD amplifier.

XS-134 Controller product sheet
  • 2-Way Stereo
  • 3/4-Way Mono
  • All-pass for mixing
  • Power-up auto on unmute option
  • Meters on all inputs and outputs
  • Optional full range outputs

Configuration: Stereo 2-Way / Mono 4-Way

Input impedance: 10k Ohms

Input headroom: +29dBu

Signal to noise ratio: > 100dB

Dimensions: 483mm × 44mm × 251mm

Weight: 7kg

Opus Audio Studio

Signal integrity, system control, dependable drive.

If you’d like help choosing the right combination of Opus electronics for your setup, get in touch and we’ll point you in the right direction.