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ST-4X DSP III 4-CHANNEL Class AB Amplifier with DSP

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Product details

Management number 238326940 Release Date 2026/07/11 List Price $230.40 Model Number 238326940
Category

The Zapco ST-4X DSP III 4-Channel Class AB Amplifier with DSP is a powerful and versatile audio solution for your vehicle. Featuring 4 channels of Class A/B amplification, delivering up to 65 watts per channel at 4 ohms, this amplifier offers exceptional sound quality with low distortion and a high signal-to-noise ratio. The built-in 8-channel digital signal processing provides advanced audio tuning capabilities, including high-pass and low-pass filters, phase control, signal delay, and 15 channels of parametric equalization per channel. With an optical digital input and optional Bluetooth streaming, this amplifier offers flexible connectivity options to seamlessly integrate with your audio system.

  • 4-Channel, Full Range, Class A/B amplifier
  • On-Board, Full Function, 8-channel Digital Signal Processing (DSP)
  • Includes high-pass and low-pass filters, phase control, signal delay, and 15 channels of parametric equalization on each channel
  • Optical Digital Input for high-quality audio
  • Bluetooth Port for external APTX HD Module (optional) for wireless streaming
  • Analog input gain controls for easy adjustment
  • Delivers 4 x 65 watts of power at 4 ohms
  • Maintains low Total Harmonic Distortion (THD) of less than 0.5% at rated power
  • Provides 4 x 90 watts of power at 2 ohms
  • Offers 2 x 180 watts of bridged power at 4 ohms
  • Boasts a Signal to Noise Ratio greater than 90dB
  • Achieves THD + Noise less than 0.2%
  • Maintains Channel Separation greater than 60dB
  • Delivers a Frequency Response of 15Hz to 30KHz ±1dB
  • Dimensions: 160(W) x 57(H) x 284(L) mm, Overall: 160(W) x 57(H) x 309(L) mm
Brand Zapco
Rms power rating 65 W
Channels 4
Impedance 4 ohm
Features Bluetooth Technology
Peak audio power handling 90 W
Rec. use Car Audio
Rec location Vehicle
Audio output 65 W
Total harmonic distortion 0.5 %
Signal-to-noise ratio 90
Inputs/Outputs Optical Digital Input, Bluetooth Port, Analog input
Input/output direction Input
Model ST-4X DSP III
Vehicle type Car
Vehicle fitment type Universal
Has nrtl listing certification N

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