Eventec
QI-125.4 - 4-Channel Fixed Installation Amplifier
QI-125.4 - 4-Channel Fixed Installation Amplifier
The QI-125.4 is the engine room of the Quad Industrial system. It’s a smart, compact 4-channel amp that can switch between low-impedance (Lo-Z) and high-impedance (Hi-Z/100V) systems, which is a huge deal for versatile installs.
Here is the Shopify description, formatted with AU spelling:
Product Title: QI-125.4 - 4-Channel Fixed Installation Amplifier
Product Description:
The Foundation of Modern Fixed Installation Audio Systems
The Quad Industrial QI-125.4 is a high-performance, 4-channel Class D power amplifier designed specifically for the rigorous demands of professional permanent installations. Housed in a compact 1U half-rack chassis, it offers a small physical footprint without compromising on power, flexibility, or control, making it easy to deploy in equipment racks, cupboards, or even wall-mounted via optional brackets.
This amplifier is exceptionally versatile, capable of driving four channels of low-impedance (4Ω/8Ω) loudspeakers or two channels of high-impedance (70V/100V) distributed systems. Its intelligent Automatic Power Sharing technology reallocates power between channel pairs to meet dynamic demands, ensuring consistent headroom across different zones.
Controlled via the browser-based QI CORE software, the QI-125.4 allows for fast and efficient configuration of routing, DSP, and power management. With built-in presets for all Quad Industrial loudspeakers, you can achieve optimised, predictable performance in minutes.
Key Features:
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Flexible Output: Supports 4 x 125W Lo-Z (4Ω/8Ω) or 2 x 250W Hi-Z (70V/100V) configurations.
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Automatic Power Sharing: Intelligently reallocates power between channels to ensure consistent performance in multi-zone systems.
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Compact 1U Half-Rack Design: Saves space in equipment racks and allows for flexible mounting in tight locations.
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QI CORE Software Control: Intuitive, browser-based interface for remote DSP tuning, routing, and system monitoring.
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Integrated Loudspeaker Presets: Quick-access presets for all Quad Industrial speakers for instant, expert tuning.
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Universal Power Supply: UREC™ universal mains with Power Factor Correction (PFC) for stable operation on any power grid.
Technical Specifications:
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Channels: 4 (Lo-Z) / 2 (Hi-Z)
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Topology: Class D
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Output Power (All Channels Driven): 125W Lo-Z / 250W Hi-Z
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Signal-to-Noise Ratio: >106 dB (A-weighted)
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Frequency Response: 20 Hz - 20 kHz (+0/-0.25 dB)
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Input Connectors: Euroblock (Phoenix-style)
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Control: RJ45 (Ethernet) for QI CORE Software
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Protection: Short circuit, DC, Undervoltage, Temperature, and Overload protection
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Weight: 2.8kg (Net)
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