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Product details

Advanced Specifications
  • DAC: ES 9028 Pro (32bit/768kHz)
  • Op Amp: 3 × OPA1612 Op Amp
  • Ext. Control: GH GHA1000
  • Gen Processing: 4 × ARM Cortex A7
  • Ext. Clocking: 2 × Femtosecond Clocks
  • Pwr&Filtering: Elna High Temp (105°C) Electrolytic Caps and WIMA film filtering caps
  • Music Formats (File types): HiRes DSD: DFF / DSF / DSD up to 256 Hi Res; Hi Res Uncompressed: WAV / FLAC / APE / AIFF / AIF; Compressed: MP3/AAC/OGG/WMA/MV
  • Music inputs: 3 × USB 2.0 Host; BT 5.0 aptX-LL/AptX; 2 × AUX RCA; 4 × High level
  • Control Inputs: BT Wireless Player Remote; Optional Wired Panel controller w/IPS Display Screen; Wi-Fi Mobile App control
  • Outputs: 2 × RCA; 1 × Optical (to 192kHz/24bit); 1 × Coaxial (to 192kHz/24bit); 1 × Video output
  • Operating Voltage: 11V ~ 16V
  • Max Low input: 4V
  • Max High input: 24V
  • RCA output: 2 × 6V
  • DIM (mm): 217 × 170 × 43
  • DIM (In): 8.6 × 6.7 × 1.7
  • Controllers available: Wireless BT Controller; Mobile App Control; Optional Wired Controller w/IPS Display
  • Fuse Rating: 10A
Key Features
  • High-end source components for external DSP systems
  • ESS (ES9028Pro) DAC achieves SNR of 135dB, with THD+N reaching -120dB
  • Goldhorn GHA1000 proprietary processing chip
  • Dual femtosecond clock generators for DAC timing reference
  • 4-channel high-level inputs for OEM head unit integration
  • 2-channel RCA outputs for system connectivity (including subwoofer connection use case as stated)
  • Bluetooth 5.0 streaming with aptX HD support
  • External storage playback support (SSD up to 512 GB; HDD up to 3 TB)
  • Multiple control options: remote, panel, app, steering wheel (limited compatibility)
  • Compact format intended for flexible in-vehicle mounting
Best Suited For
  • High-end DSP-based systems where the source unit is a key signal-path component
  • OEM head unit vehicles requiring 4-channel high-level input integration
  • Builds using external DSP processing feeding multiple amplifiers
  • Multi-way active front stage systems (tweeter / midrange / woofer layouts) as shown in the integration example
  • Users running local high-resolution libraries from external SSD/HDD
  • Systems requiring Bluetooth 5.0 wireless playback with aptX HD support
Why OSCA Backs This Product

In DSP-based builds, the source unit can determine how cleanly the system can be integrated and tuned. The P3 Plus is presented as a purpose-built DSP companion: OEM-friendly high-level inputs, a dedicated DAC stage with published performance figures, and a design focus on low noise and low distortion. For systems where the source is expected to be more than a convenience feature, and where the DSP is the central tuning tool, the P3 Plus is aligned with that approach based on the features and design elements provided.

Reference-Grade Source Architecture for DSP-Based Systems

The P3 Plus is designed for systems where source quality matters from the very beginning, delivering a cleaner, more stable signal for the rest of the system to build on. Created to partner with serious DSP-based setups, it focuses on purity, refinement, and control, helping unlock greater clarity, realism, and overall system performance.

Built for high-end integration, the P3 Plus works seamlessly with factory head units while giving premium systems the quality signal they need to perform at their best. It is a component for builders who understand that exceptional sound starts at the source, and that every great system depends on what you feed into it.

REAL CAR AUDIO

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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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