DLS PA4.6DA

The DLS Performance Advantage PA4.6DA is a compact 6-channel digital signal processor with an integrated Class AB amplifier, designed specifically for in-vehicle use. It combines signal processing and amplification in a single enclosure and is ideal for building a high-quality car audio system with precise sound tuning. The device embodies the signature DLS sound: a warm, natural sound with minimal listener fatigue.

At the heart of the signal processing is a Cirrus Logic DSP platform with 24-bit resolution and a sampling rate of 192 kHz. Each channel can be fine-tuned using a 31-band equalizer (graphic or parametric) with a control range of -18 to +12 dB in 0.1-dB steps. Flexible crossovers—including Bessel, Butterworth, and Linkwitz-Riley types—with slope rates ranging from 6 to 48 dB per octave, as well as time alignment in 0.021-ms increments (up to 15 ms or 519 cm) allow for precise adaptation to the acoustic conditions of the vehicle interior and the creation of a stable midrange soundstage at the listening position.

Integration into modern vehicles with factory-installed head units is hassle-free thanks to a 4-channel high-level input with Smart Load Circuitry, which provides a suitable load for factory radios with impedance monitoring. Additionally, a 2-channel RCA input, an optical digital input, and Bluetooth 5.1 are available. Six RCA DSP outputs allow for the control of external amplifiers. Configuration is performed via a Windows-based USB interface (compatible with Windows XP through Windows 11), and up to ten presets can be stored in the internal memory.

Performance:

• Amplifier class: AB
• RMS Power at 4 Ohms: 4 x 25 W
• RMS Power at 2 Ohms: 4 x 50 W
  
  

DSP & Features:

• DSP Platform: Cirrus Logic, 24-bit / 192 kHz
• Channels: 6 DSP channels, 4 amplifier channels
• Equalizer: 31-band GEQ or PEQ per channel, -18 to +12 dB in 0.1-dB steps
• Crossover Types: Bessel, Butterworth, Linkwitz-Riley
• Crossover slope: 6 to 48 dB per octave
• Runtime correction: 0 to 15 ms in 0.021-ms increments (0 to 519 cm)
• Number of presets that can be saved: 10
• Automatic Power-On: Yes
• PC Connection: USB 2.0, Windows XP through Windows 11
• Inputs: 4-channel high-level input with Smart Load Circuitry, 2-channel RCA (low-level), optical digital input, Bluetooth 5.1
• Outputs: 6-channel RCA DSP output, 4-channel high-level output
  
  

Technical Specifications:

• Frequency range: 20 – 20,000 Hz
• Signal-to-noise ratio (A-weighted): > 100 dB
• Dimensions (W x D x H): 116 x 199 x 48 mm
• Weight: 0.9 kg