ZDAP-QL1 Plug & Play DSP Kit ISO 1998-2020

Transform your vehicle’s audio experience with the ZDAP-QL1 DSP Power Up Kit, engineered to deliver exceptional sound quality. This plug-and-play kit includes a powerful 4x70W RMS Class A/B DSP Amplifier and all the necessary premium-quality harnesses for seamless installation and maximum performance. No vehicle modifications are required – plug it in and enjoy an elevated listening experience.

ZDA4.8 – DSP Amplifier

The ZDA4.8 DSP amplifier sets a new standard for in-car audio, surpassing standard factory-installed amplifiers. Unlike the typical Class D amplifiers found in similar products, the ZDA4.8 uses Class A/B technology to deliver a warmer, more natural sound. Sound quality is significantly enhanced even without DSP adjustments, but the built-in DSP functionality allows you to fine-tune your vehicle’s audio system to match your preferences, no matter your music style.

ZDC- and ZDT-Harness Benefits

The ZDT harness connects seamlessly behind the OEM head unit without cutting any wires, providing reliable power, clear signal transfer, and reduced noise thanks to its twisted cables and oversized power and ground wires.

The ZDC harness extends this connection to the ZDA4.8 DSP amplifier under the front seat, ensuring a clean installation and enhanced audio performance. Together, they enable efficient integration and exceptional sound quality.

Fitment

The ZDAP-QL1 is specifically designed for BMW, Mercedes, Renault, Skoda, and Volkswagen from 2004 onward. For a detailed list of compatible models, refer to our Vehicle Application List.

Technical Specifications and Features

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, OEM functionality is maintained, preventing potential issues with plug-and-play installations.

Input Priority – Prioritization of Audio Inputs

This feature ensures seamless integration with your vehicle’s existing system. You can use low-level inputs or digital sources such as Bluetooth, Optical, or Coaxial, without losing essential system sounds like parking sensors, alerts, and radio signals.
If your vehicle’s audio system has a high-pass filter that limits bass output, this limitation can be bypassed by streaming audio directly to the DSP via Bluetooth, while maintaining full OEM functionality.

DSP Outputs

The ZDA4.8 DSP amplifier allows for system expansion:

• Four DSP-configurable RCA outputs (Channels 5-8)
• Ability to connect additional amplifiers, such as a subwoofer amplifier
• Full optimization via DSP software
• Delay settings, filters, and equalizer adjustments for optimal performance

Advanced DSP Software

Take full control of your audio system with the free, user-friendly PC software (Windows 10 & 11). Connect via the included USB-B cable and gain access to advanced audio tuning options:

• 31-band Parametric EQ (PEQ) for precise frequency adjustments
• Selectable filter types (Bessel, Butterworth, Linkwitz-Riley) with adjustable slopes from -6dB to -48dB
• Time alignment with a built-in delay calculator
• Fully customizable channel routing
• Advanced linking options for copying or relating channels

With these advanced features, you can fine-tune your audio system to your preferences.