Opus Audio - System Electronics
Integrated Studio Components

System
Electronics

The supporting electronics behind the Opus whole system approach featuring Studio-Grade dual mono amplification, system control and direct injection. Designed for signal integrity, stability and real-world professional use.

HD Series

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

XS-134

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

DI-1000

Direct active interfacing between Opus systems and instruments or mixers.

Opus Audio - HD500 Front and Rear
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

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.

  • 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

Dimensions: : 483mm × 44mm × 251mm

Weight: : 7Kg

Opus Audio - XS-134 Controller
Opus Audio - DI1000 Front and Rear
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
  • Ground Lift and Level Matching
  • 'Edge' tone shaping presence
  • Active parallel output
  • Phase Correction
  • 3 power options

Input Headroom: +9dBu (9v battery) +20dBu (24v external)

Configuration: Mono

Input impedance: 10k Ohms

Output: Balanced XLR (Mic or Line Level) - Unbalanced Mono TRS Jack

Signal to noise ratio: > 100dB

Construction: 2mm Aluminium / Steel Shell - Solid Aluminium Front Panel

Power Supply: 9v battery (24hrs continuous) - Phantom Power - External 9v to 24v

Dimensions - W: 105mm / H:61mm / D:112mm: W: 105mm / H:61mm / D:112mm

Opus Audio

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 be happy to provide specific requirements for your needs.