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Goldhorn P3 DSPA Plus DSD player and DSP amplifier
Goldhorn P3 DSPA Plus DSD player and DSP amplifier front
Goldhorn P3 DSPA Plus DSD player and DSP amplifier top view
Goldhorn P3 DSPA Plus DSD player and DSP amplifier back
Goldhorn P3 DSPA Plus DSD player and DSP amplifier angled view

Vendor:Goldhorn

Goldhorn P3 DSPA Plus — 20-Channel Hi-Res DSD Player & DSP Amplifier

$2,960.00

Goldhorn P3 DSPA Plus is an all-in-one digital player with a DSP amplifier designed for 20-channel car audio systems. It includes a 10-channel Class D amplifier (8 × 80 W + 2 × 150 W max), professional DSP tuning with 31-band output EQ and 5-band input EQ/delay adjustment, plus high-level and RCA connectivity for multi-speaker upgrades.

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Product details

Advanced Specifications
  • DSP processor: Analog Devices ADAU1463 (32-bit floating-point), 192 kHz sampling
  • Output EQ: 31-band parametric per channel (±15 dB, 0.1 dB steps)
  • Time alignment: 0–20 ms per channel (0.02 ms steps)
  • Crossovers: Butterworth/Bessel (up to 48 dB/oct) and Linkwitz-Riley (up to 36 dB/oct), 20 Hz–20 kHz range
  • Presets: 8 user presets
  • Amplifier: 10-channel Class D — 8 × 80 W @ 4Ω + 2 × 150 W @ 4Ω
  • Total power: 940 W RMS @ 4Ω (as provided)
  • Inputs: 12-channel high-level (24 V max, 6-ohm impedance, EPS protection) + 2 × stereo RCA
  • Outputs: RCA pre-outs (12 × RCA @ 6 Vrms) + 10 amplified speaker outputs
  • Player: DSD256 support + USB-DAC (phone OTG)
  • Bluetooth: 5.0 (aptX / AAC / SBC)
  • USB: 3 × USB host inputs
  • Power: 11–16 V, start-stop ready, 60 A fuse
  • Dimensions: 296 × 217 × 43 mm
Key Features
  • 20-channel DSP/Player/Amp platform designed for complex multi-speaker systems
  • 10-channel onboard Class D amplification plus high-voltage RCA pre-outs for external expansion
  • Per-channel processing with independent EQ, crossovers, time alignment, phase and polarity control
  • Built-in player supports DSD256 and multiple file formats, with USB storage and phone OTG via USB-DAC
  • Multiple control paths: WiFi app, Bluetooth remote, optional wired controller, and PC software
Best Suited For
  • Vehicles with factory multi-speaker layouts where a 20-channel upgrade plan is required
  • Systems using a mix of onboard amplification and RCA outputs to external amplifiers
  • Builds that need high-level integration plus DSP tuning control in one unit
  • Users who want to feed the system from a phone via OTG, alongside other sources
Why OSCA Backs This Product

When a build needs genuine channel capacity without turning the install into a multi-box project, the P3 DSPA Plus makes sense. The 20-channel layout, combined with onboard amplification (including the two higher-power channels), and the inclusion of a high-resolution DSD player, gives you a practical way to structure a complex system while keeping routing and tuning in one place. It’s the kind of unit we’d use when the plan is multi-speaker, OEM-integrated, and you want the flexibility of high-level integration plus RCA expansion without reworking the whole system later.
Goldhorn P3 DSPA Plus Tech Specs P3 DSPA Plus Owners Manual (PDF)

Multi-Channel Architecture, Refined

The P3 DSPA Plus is built for vehicles that demand more from every part of the system. Combining advanced processing, onboard power, and high channel count flexibility in a single chassis, it creates a cleaner, more capable foundation for complex builds where control, integration, and performance all matter.

More than just an upgrade, the P3 DSPA Plus opens the door to a new level of system design. It gives you the freedom to manage sophisticated multi-speaker layouts with greater precision and less compromise, delivering a more seamless, immersive, and refined listening experience throughout the entire cabin.

The Gold Standard in Car Audio

Since its establishment in 2004, Goldhorn Electronics has risen to the forefront of China’s high-end car audio market. Drawing on decades of experience in high-fidelity sound and automotive electronics, Goldhorn engineers develop products designed to resolve musical nuance and accuracy inside the acoustically complex vehicle environment. With in-house research, manufacturing, and technical support, the brand has earned recognition both domestically and internationally for its refined, performance-driven solutions.

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