Phoenix Gold ZDA4.8 4-Channel DSP Amplifier

The ZDA4.8 is a 4x70W high-performance amplifier and Digital Sound Processor (DSP) that offers great audio quality and adjustability with its easy-to-use software.

The ZDA4.8 amplifier delivers exceptional sound quality with a powerful 4x70W RMS Class A/B amplifier, providing warm, natural sound for your vehicle.

Made for Plug and Play

Designed for easy plug-and-play installation, the ZDA4.8 features a 20-pin Molex connector compatible with ZDC-ISO and ZDT- harnesses, ensuring a seamless setup without modifying your car’s original wiring.

The ZDA4.8 DSP Amplifier redefines in-car sound quality at this price point, outshining the standard factory-installed amplifiers. Unlike the typical Class D technology found in similar products, the ZDA4.8 employs Class A/B technology, delivering a warmer, more natural sound that brings your music to life. Even without DSP adjustments, the sound quality is significantly enhanced. However, the built-in DSP takes it further, allowing you to fine-tune your vehicle’s audio system to suit your preferences, no matter your music taste.

OIS – OEM Impedance Simulation

The ZDA4.8 is equipped with OEM Impedance Simulation (OIS), ensuring compatibility with modern head units and amplifiers. By simulating speaker impedance, it maintains the functionality of your vehicle’s OEM head unit, preventing potential issues with plug-and-play installations.

Input Priority

The Input Priority feature ensures effortless integration with your vehicle’s OEM head unit. You can use low-level inputs or digital sources such as Bluetooth, Optical, or Coaxial, without losing vital system sounds like parking sensors, alerts, and radio signals. For instance, if your vehicle has a high-pass filter that limits bass output, you can bypass this limitation by streaming audio directly to the DSP via Bluetooth while maintaining full OEM functionality.

DSP Outputs

The ZDA4.8 doesn’t stop at upgrading your system—it also enables expansion. With four free DSP-configurable RCA outputs (Channels 5-8), you can connect additional amplifiers, such as a subwoofer amp, and fully optimize them using the DSP software. Delay settings, filters, and equalization options ensure top-tier performance for your additional components.

Software

Take control of your sound system with the free, user-friendly PC software (compatible with Windows 10 and 11). Connect via the included USB-B cable and unlock a suite of powerful tuning tools:

• 31-Band Parametric EQ (PEQ) for precise frequency adjustments
• Choose filter types (Bessel, Butterworth, Linkwitz-Riley) with adjustable slopes from -6dB to -48dB.
• Time alignment with a built-in delay calculator
• Fully custom channel routing
• Custom link options (Copy or Relate) With these advanced features, you can tune your sound system to your preferences.

Key Features

Every detail of the ZDA Series amplifiers is engineered for excellence:

• Burr Brown OPs – Leveraging the same renowned technology as our ZQ series for superior audio precision.
• Burr DAC PCM1681 – Delivering premium digital-to-analogue conversion for crystal-clear sound.
• Bluetooth 5.0 – Seamless wireless connectivity with cutting-edge stability and performance.
• Toshiba TDA Transistor Package – Power and efficiency perfectly combined.
• Die-Cast Heatsink – Advanced cooling design for peak performance under pressure.
• 48kHz DSP Sampling Rate – Ensuring unmatched clarity and processing accuracy.
• Gold PCB Design – A mark of Phoenix Gold’s commitment to quality and durability.
• Molex Connectors – Reliable connections for a worry-free setup.
• 8-Channel DSP (All Models) – Unlock unlimited possibilities for customization.
• Class A/B Design – Delivering natural, uncompromised sound without noisy fans.

Hardware Specifications

• Type: DSP Amplifier
• Amplifier Class: A/B
• Amplified Channels: 4
• DSP Channels: 8
• Frequency Response (-3dB): 15Hz ~ 23kHz
• MAX Power Rating: 560W
• RMS Power Rating (2Ω): N/A
• RMS Power Rating (4Ω): 4 x 70W
• RCA Voltage Output: 4V
• DAC: Burr Brown PCM1681
• DSP Resolution: 24 Bit
• Sampling Rate: 48kHz
• SNR (Analogue/Digital Input): -90dB
• THD: 0.1%
• Crosstalk: -60dB
• Damping Factor: 120
• High-Level Input
• Auto Turn-On
• Input Sensitivity (High-Level): 0.2V – 20V
• Input Sensitivity (Low-Level): 0.2V – 5V
• Operating Voltage: 9V – 16V
• Start-Stop Compatible
• Idle Current: 1.5A
• Current Draw (MAX): 30A
• Total Efficiency (4Ω): 60%
• Power Terminal: 10mm²
• Remote (Optional): ZDAWCT
• Low-Level Outputs (RCA): 8
• Analogue Inputs: 6 x High-Level / 2 x Low-Level
• Digital Inputs: Bluetooth / Coaxial / USB / SPDIF
• Remote Input
• Remote Output
• PC Connection Input: USB-B
• APP Control (Coming Soon)

Software Specifications

• PC Software: (Windows 10, Windows 11)
• Equalizer: 31-Band
• Phase Adjustments: 0 or 180 degree
• Filters: High-Pass & Low-Pass
• Filter Types: Bessel, Butterworth, Linkwitz-Riley
• Filter Slopes (Bessel/Butterworth): Off, -6dB, -12dB, -18dB, -24dB, -36dB, -42dB, -48dB
• Filter Slopes (Linkwitz-Riley): Off, -12dB, -24dB, -48dB
• Time Alignment: 0 – 48ms (0 – 1632cm)
• Bypass EQ: (Individual channels & ALL channels)
• Mute: (Individual channels & ALL channels)
• Input Priority: (2 Sources)
• Turn-On Delay: (5 – 30sec)
• Custom Signal Routing
• EQ Settings: Graphic EQ / Parametric EQ
• Delay Calculator: (cm and inches)
• Delay Unit: Centimeters / Inches / Milliseconds
• Custom Link Settings: Copy & Relate (Delay/EQ/Filters/Volume)
• Input Setting (Input Sensitivity): -6dB, -3dB, 0dB, +3dB, +6dB
• Preset Password Protection:
• Full Screen Mode:
• EQ Band Gain: (Each EQ Band) -12dB to +12dB
• Adjustable Q Value: 0.1 to 12
• Languages: English, German, Spanish & Chinese
• EQ Adjustable Frequency Range: 20Hz – 20kHz
• Individual Channel Gain: 0dB to -59dB
• Global Volume Gain: 0dB to -28dB
• Selectable Channel Names:, for each channel