Studiomaster QX4-4000 4-Channel 1U Digital Power Amplifier (4 x 1700W @ 4 Ohms)
DETAILS
The Studiomaster QX4-4000 is a high-power, four-channel digital amplifier engineered for professional installations, line array systems, and demanding rental or touring applications.
Compact Design with Massive Output
The QX4-4000 combines a sleek 1U form factor with remarkable power, delivering 4x1700 watts into 4 ohms. Lightweight at just 12kg, it’s easy to rack, transport, and deploy in a wide variety of audio setups, from multi-zone installations to high-output concert systems. Its advanced amplifier adjustment technology provides over 95% efficiency and stable performance at high current, low impedance conditions.
Flexible Configuration for Professional Use
This four-channel amplifier offers stereo, parallel, and bridged modes, providing full flexibility to adapt to a variety of system designs. With both 2 and 4 channel options available in the QX series, the QX4-4000 can be integrated into large-scale installations or used as a standalone powerhouse. Its internally modular design simplifies maintenance, making it ideal for rental companies and touring professionals.
Reliable Power and Protection
Featuring active power factor correction (PFC) and a soft-switching universal power supply (90–250VAC), the QX4-4000 ensures reliable operation worldwide. Comprehensive protection includes thermal, overload, DC, and low-voltage safeguards. Variable speed fans efficiently cool the amplifier, while fault, thermal, and limiter indicators provide clear, real-time status updates.
High Current, Low Impedance Capability
Capable of stable performance down to 2 ohms, the QX4-4000 is engineered for demanding line array systems or high-current speaker configurations. Its precise circuitry maintains audio clarity and consistent power, even under extreme loads, delivering professional-grade sound for installations, events, and touring applications.
Studiomaster QX4-4000 Key Features:
- Ultra high-power 4-channel digital amplifier: 4x1700W at 4 ohms for demanding audio systems
- Efficient design: Over 95% efficiency reduces heat and power consumption
- Power factor correction (PFC): Ensures stable, reliable operation
- Universal 90–250V soft-switching supply: Compatible worldwide
- Stereo, parallel, and bridge modes: Adaptable to multiple system configurations
- Modular internal design: Simplifies maintenance
- Variable speed fan cooling: Efficient and quiet
- Comprehensive protection: Thermal, overload, DC, and low-voltage protection
- Clear status indicators: Thermal, fault, and limiter indicators for real-time monitoring
- Balanced XLR inputs: Professional connectivity
- 32A mains input: Suitable for high-power applications
SPECS & DOWNLOADS
Studiomaster QX4-4000 Specifications:
Stereo Mode:
- 8Ω: 4 x 1000W
- 4Ω: 4 x 1700W
- 2Ω: 4 x 2890W
Bridged Mode:
- 16Ω: 2 x 2000W
- 8Ω: 2 x 3400W
- 4Ω: 2 x 5780W
Technical Specifications:
- Number of Channels: 4
- Input Impedance: 20kΩ (balanced), 10kΩ (unbalanced)
- Protection: Low voltage, overload, thermal, DC output protection
- Net Weight: 12kg
- Dimensions (W×H×D): 483 x 44 x 462mm
- Operating Voltage: 90–250VAC, 50/60Hz
- AC Mains Connector: 32A
- S/N Ratio (20Hz–20kHz @ 8Ω): >105–112dB
- Damping Factor (8Ω, 20Hz–200Hz): 5000
- Input Sensitivity: Selectable 41dB, 38dB, 35dB, 32dB

