Functional overview

Amplifier series
QX4 DSP, Integrating efficient TD technology and modular design , can effectively reduce the fluctuation of output power supply, thus maintaining stable output, suitable for 230V、115V:170-265V/80-135V power supply voltage. , hot swappable, and with the protection of short circuit, DC fault, overheating, overload & over-limit, it is suitable for touring performance and fixed installation venues.

Material & Structure:

  • The brand and model names are engraved by laser technology for longlife usage
  • Stylish & tempered glass display
  • Extruded Aluminum front panel with special treatment, anti-scratch and avoid color fading
  • Easy removing the front panel for quick cleaning the dust filter (foam)
  • Hot swappable amplifier module
  • Neutrik connectors
  • Input voltage:230V or 110V 50/60HZ


  • 1. Core TD Technology Power Module
  • 2. Install/Remove dust filter quickly
  • 3. Stylish front panel and well-equipped LED indicating
  • 4. Multi-function selectable :sensitivities, powerout and modes
  • 5. All input/output connectors imported from original "Neutrik ® "
  • 6. Quick Install/Remove front panel
  • 7. Main switching power capability up to 10KW
  • 8. High efficient specified copper heat-sink
  • 9. Tiny power amplifier modules, special stacking up strucrure, to form the advanced and efficient cooling structural system
  • 10. Three high - speed inported fans, Fan speed varies according to complete machine temperature, extending the machine life and smaller noise of the fans
  • 11. Supporting hot swappable power amplifier module

Technical & Specification

  • DSP Resolution:54bit accumulation registers, 96 bit precision on intermediate processing data
  • Parametric Equalization:12 band parametric equatlization per input, 4 band parametric equalization per output
  • FIR for Phase Correction:512 Taps, with FIR phase coefficients
  • Filter Type:Bell, Shelving, HP/LP, Band Pass, Notch Filter, All Pass
  • Filter Gain:From -15dBu up to +15dBu by 0.5dBu resolution steps
  • Center Frequency: Selectable with a 1HZ resolution step from 20Hz up to 20kHz
  • Filter Q/BW: Bell: Q from 0.4 up to 128, steps: 100、Shelving: Q from 0.1 up to 5.1, steps: 100
  • Bandpass/Notch: Q from 4 up to 104, steps: 100
  • Input&Output Gain: -12dB ~ +12dB, resolution: 0.1dB
  • IIR Crossover section HPF/LPF:Butterworth 6/12/18/24/36/48dB per octave; Bessel 12/24dB per octave、Linkwitz-Riley 12/24/36/48dB per octave
  • Noise Generator:Type: White/Pink Noise; Level: -40dBu ~ 0dBu
  • Input RMS Compressor:Threshold from -16dBu up to +14dBu、Attack time from 5ms up to 200ms; Release time from 0.1sec up to 3sec、Ratio: 2:1~32:1; Knee: 0~100%
  • Internal Overflow Process:12dB
  • Routing:Full matrix mixing mode
  • Delay:Each input has up to 500.998ms delay, each output has up to 340.998ms delay
  • Input connectors(per ch.):3-pin XLR,electronically balanced
  • Output connectors(per ch.):speakON NL4MD-H
  • Operating voltage, 230V/115V rating:170-265V/80-135V
  • Minimum power supply starting voltage230V/115V:175V/85V
  • Power Average Limiter(PAL):Yes
  • Soft start / Inrush Current Draw:Yes / max. 5A
  • Mains connector:powerCON Plug 230V:16A,;115VETL:30A
  • Dimensions(W / H / D):W:445mm,H:88.8mm(2U)MountingD:425mm
  • Weight:13.5kg
  • Peak output voltage per channel:150 V
  • 8 ohms per ch.(all ch.s driven):1300 W
  • 4 ohms per ch.(all ch.s driven):2100 W
  • 2 ohms per ch.(all ch.s driven):2500 W
  • 8 ohms Bridged per ch.:4200 W
  • 4 ohms Bridged per ch.:5000 W
  • Input Common Mode Rejection,CMR:>54 dB
  • Output impedance@100Hz:32 mOhm