• 4CH x 5400W at 4 ohms
• 4CH x 3000W at 8 ohms
• 8ohms stereo(per channel): 4X3000W
• 4ohms stereo (per channel): 4X5400W
• 8ohms bridge mono: 2X9000W
• Frequency response (1W): 20hz-20kHz,+0/-1dB
• (THD): <0.5%,20Hz-20kHz
• Damping coefficient (8 ohms), 10Hz-400Hz: >500
• SNR(take the rated power output as a reference 20Hz to 20 kHz: >100dB
• Crosstalk(take the rated power output as a reference) 
• At 1kHz At 20 kHz: -75dB, -59dB
• Input sensitivity(rated power 8ohms): 0.77V or 1.4V or 32dB
• Input impedance (rated): 20k ohms
• balance, Unbalance: 10k ohms
• Input connector: Each channel one balance XLR and one unbalance RCA
• Output connector: Each channel 4-pole speakon and
• Front panel control key: Power switch channal gain control switch
• Back panel control key: 0.755V1.4V32dB
• Power LED: Each channel one green LED
• Signal LED: Each channel one green LED
• Cliping LED: Each channel one yellow LED
• Fault LED: Each channel red LED, indicate channel is closed.
• Protect: Protect short circuit, no-load, turn on/off noise, radio interference protection circuit
• Ventilate: Air convection from front to back
• Cooling: Internal air strong exhaust heat dissipation, fan cooling, quick adjustment, temperature protector
• Size (WxHxD): 483mmx470mmx88mm
• Net weight: 16.5kg

DigiSounds 54X4D 
Professional Power Amplifier with Marani DSP