Description
A compact 6 channel digital signal processor designed to act as the central control unit in systems where amplification is chosen separately. PA4.6D focuses on precise tuning, predictable behaviour and the warm, natural DLS sound in the car.
The DSP is based on a 24 bit / 192 kHz Cirrus Logic platform. Each channel can be adjusted using a 31 band equaliser, flexible crossover filters and time alignment in fine steps. This provides the tools needed to correct speaker response, manage cabin acoustics and establish a stable, well balanced sound stage at the listening position.
PA4.6D is built to integrate cleanly with modern OEM systems. A 4 channel high level input with Smart Load Circuitry ensures stable operation with factory head units that monitor impedance. Additional inputs include RCA, optical digital and Bluetooth 5.1, while six RCA DSP outputs allow easy connection to external amplifiers. Configuration is handled via a Windows based USB interface, with up to ten presets stored in the internal memory.
Key specifications
- Type: 6 channel digital signal processor
- DSP: Cirrus Logic 24 bit, 192 kHz
- Frequency response: 20 to 20 000 Hz
- Signal to noise ratio (A weighted): > 100 dB
- EQ: 31 band GEQ or PEQ per channel, -18 to +12 dB in 0.1 dB steps
- Crossover types: Bessel, Butterworth, Linkwitz Riley
- Crossover slopes: 6 to 48 dB per octave
- Time alignment: 0 to 15 ms in 0.021 ms steps (0 to 519 cm)
- Inputs: 4 ch high level with Smart Load Circuitry, 2 ch RCA low level, optical digital, Bluetooth 5.1
- Outputs: 6 ch RCA DSP output
- Memory presets: 10
- Auto turn on: Yes
- PC connection: USB 2.0, Windows XP to Windows 11
