Goldhorn P3 DSPA Plus | 20 Channel DSP/DSD Player with 8x80w + 150w x 2 Amplifier

Goldhorn P3 DSPA Plus

20 Channel DSP/DSD Player with 10-Channel Amplifier

8x 80W + 2x 150W | 940W Total Power

Professional All-in-One Integration

$1,999.99

20-Channel DSP + DSD256 Player + 940W Amplifier | Factory-Fresh Condition

The Flagship 20-Channel Integration Solution

The Goldhorn P3 DSPA Plus represents the pinnacle of automotive audio integration: a 20-channel digital signal processor, DSD256 hi-resolution music player, and 10-channel Class D amplifier (8x 80W + 2x 150W = 940W total) in a single, professionally-engineered chassis. This isn't incremental improvement—it's a fundamental reimagining of what's possible in car audio system architecture.

Built around the Analog Devices ADAU1463 DSP processor (the industry's reference-grade chip for competition-level systems), the TI PCM1690 24-bit/192kHz DAC, and a sophisticated Class D amplifier section, the P3 DSPA Plus delivers 20 total output channels: 10 amplified speaker outputs (8x 80W + 2x 150W) plus 12 RCA pre-outs (6Vrms) for external amplification. This dual-output architecture enables unprecedented system configurations—from complex multi-way active systems to high-power bi-amped setups with subwoofer arrays.

What truly distinguishes the P3 DSPA Plus is its integration depth: 12 high-level inputs (tap any factory system without cutting wires), 3 USB Host inputs (connect multiple music libraries simultaneously), native DSD256 playback (audiophile-grade resolution), and 31-band parametric EQ per channel (620 total EQ bands across 20 channels). This is professional installation equipment designed for the most demanding applications—competition Sound Quality builds, ultra-luxury vehicle upgrades, and reference-grade home-to-car audio transfers.

At $1,999.99, the P3 DSPA Plus costs less than competing 16-channel DSP processors alone (Zapco ADSP-Z16 IV: $1,499 without amp/player), while delivering 4 additional channels, superior amplification, and unique DSD playback. The distinctive red anodized aluminum chassis (296x217x43mm) fits under most seats or in trunk installations, with built-in WiFi control and optional wired dashboard controller.

Three Professional Components, One Chassis

Competitive Analysis: 20-Channel Systems

Competitive Advantage: The P3 DSPA Plus delivers 4 additional DSP channels vs. Zapco (20 vs. 16), unique DSD256 player functionality that no competitor offers, and higher RCA voltage (6Vrms vs. 4Vrms) for superior external amplifier control—all for $500 more. Compared to Audison BitOne.1 ($1,200) + separate 12-channel amp ($1,200+), the P3 DSPA Plus saves $400-600 while adding DSD playback and 7 additional DSP channels.

🏆 Unique Differentiators: What Makes P3 DSPA Plus Special

Target Market & Applications

Complete Technical Specifications

📦 What's Included in the Box

Optional Accessories Available Separately: Wired panel controller with IPS display screen ($249.99), additional Bluetooth remotes, extended USB cables for dash-mounted USB ports, custom mounting brackets.

Warranty & Support

Scenario 1: Competition SQ Build - 5-Way Active Front Stage

Vehicle: 2021 Audi A6 (factory Bang & Olufsen system)
Goal: IASCA/MECA competition-level Sound Quality build
Budget: $8,500 total

Component Selection:

• DSP/Amp/Player: Goldhorn P3 DSPA Plus @ $1,999
• Super Tweeters: Hybrid Audio L1 Pro R2 @ $350/pair
• Tweeters: Scan-Speak D2606/920000 (Illuminator) @ $400/pair
• Midrange: Scan-Speak 12MU/4731T00 (4" Silver Cone) @ $300/pair
• Upper Midbass: Scan-Speak 15W/8530K01 (6" Revelator) @ $400/pair
• Lower Midbass: Scan-Speak 18W/8531G00 (7" Revelator) @ $500/pair
• Subwoofers: 2x JL Audio 10W7AE-3 @ $1,200/pair
• Subwoofer Amplifier: Arc Audio X2 1100.1 @ $800
• Sound Deadening: 150 sq ft Noico 80mil @ $450
• Custom Fabrication: A-pillar pods, door pods, kick panels, sub enclosure @ $1,500
• Installation Labor: $1,600 (50 hours @ $32/hr shop rate)
• Total System Cost: $8,499

Channel Allocation (20 Channels Used):

Internal Amplification (10 channels):
• Ch 1-2: Super Tweeters (L/R) - 80W each
• Ch 3-4: Tweeters (L/R) - 80W each
• Ch 5-6: Midrange (L/R) - 80W each
• Ch 7-8: Upper Midbass (L/R) - 80W each
• Ch 9-10: Lower Midbass (L/R) - 150W each (requires higher power for excursion)

RCA Pre-Outs (External Amplification):
• Ch 11-12: Subwoofers (L/R) via Arc Audio amp (600W each)
• Ch 13-20: Reserved for future expansion (rear fill, center channel, additional subs)

Why This Works: 20-channel processing enables true 5-way active front stage—impossible with 16-channel competitors. The P3 DSPA Plus's internal amplification handles all 10 front-stage drivers (super tweeters down to lower midbass), eliminating need for external 10-channel amplifier ($1,200-1,500 savings). DSD256 playback for competition demo tracks (Reference Recordings, Chesky Records) gives judges immediate "wow factor." ADAU1463 DSP provides competition-grade tuning precision. Total savings vs. separate components: $1,000-1,200.

Scenario 2: Mercedes S-Class Ultra-Luxury OEM Integration

Vehicle: 2023 Mercedes-Benz S580 4MATIC (factory Burmester 4D High-End surround system - 31 speakers)
Goal: Enhance factory system with DSD hi-res playback, preserve all OEM functionality/warranty
Budget: $3,500 total

Component Selection:

• DSP/Amp/Player: Goldhorn P3 DSPA Plus @ $1,999
• Installation: Under-seat DSP mount, high-level input from factory Burmester amp outputs @ $1,500 (professional integration specialist required)
• Total System Cost: $3,499

Integration Strategy:

Mercedes S-Class Burmester 4D system uses 31 speakers with factory external amplifiers. The factory head unit (MBUX) sends pre-amp signals to Burmester amps, which drive speakers. Challenge: How to add DSD playback + DSP processing without cutting ANY factory wiring or compromising warranty?

Solution: Install P3 DSPA Plus between factory head unit and Burmester amplifiers. Use 12 high-level inputs to tap factory head unit outputs (no cutting - use parallel taps). P3 DSPA Pro processes signals with 31-band EQ and time alignment correction, then outputs via 12 RCA pre-outs @ 6Vrms to Burmester factory amplifiers. The 10 internal amplifier channels remain unused—this installation uses P3 DSPA Plus purely as DSP processor + DSD player.

Result: Factory Burmester system remains 100% functional. MBUX infotainment controls work normally. When Hi-Res DSD music library is desired, switch to P3 DSPA Plus via USB input (3 USB drives with 6TB total capacity). Cabin tuning is corrected with 31-band EQ per channel—addressing Mercedes S-Class's known cabin acoustic challenges (leather seats, laminated glass create uneven frequency response). Factory warranty unaffected (zero OEM wiring modifications).

Why S-Class Owners Choose This: $150,000+ Mercedes buyers expect perfection. Factory Burmester 4D ($6,400 option) sounds impressive but lacks Hi-Res source capability (MBUX tops out at 320kbps MP3). At $3,500, adding P3 DSPA Plus provides DSD256 playback (audiophile-grade) + professional DSP tuning + zero visible modifications. Competitors (Audison BitOne.1, Helix DSP Pro Mk2) cost $1,200-1,500 WITHOUT amp/player—and lack 20-channel processing for 31-speaker factory systems. P3 DSPA Plus is the only solution under $5,000 that can properly address ultra-luxury OEM integration challenges.

Scenario 3: Home Theater Audiophile-to-Car Transfer

Vehicle: 2022 Porsche Cayenne Turbo
Goal: Replicate home theater reference system in vehicle (audiophile prioritizes DSD library playback)
Budget: $12,000 total

User Background:

Owner has $40,000 home theater system with Marantz AV8805 processor (13.2 channels), Anthem amplifiers, and extensive DSD music library (2TB+ SACD rips from 2L Records, Blue Coast Records, Channel Classics). Wants comparable experience in Cayenne for long commutes.

Component Selection:

• DSP/Amp/Player: Goldhorn P3 DSPA Plus @ $1,999 (20-channel processing, DSD256 playback)
• Front Tweeters: Scan-Speak D3004/662000 (Illuminator) @ $500/pair
• Front Midrange: Scan-Speak 15WU/4741T00 (Discovery) @ $350/pair
• Front Midbass: Scan-Speak 22W/4534G00 (Revelator 8") @ $600/pair
• Rear Fill: Morel Supremo 602 MKII @ $800/pair
• Center Channel: Scan-Speak 10F/4424G00 @ $300
• Subwoofers: 2x JL Audio 13W7AE-D1.5 @ $2,000/pair
• Front Amplifier: Arc Audio X2 600.6 (6-channel) @ $1,000
• Rear Amplifier: Arc Audio X2 400.4 (4-channel) @ $600
• Subwoofer Amplifier: Arc Audio X2 1500.1 @ $900
• Sound Treatment: 200 sq ft Noico 80mil + acoustic foam @ $600
• Custom Fabrication: Complete interior build (A-pillars, kick panels, dash pods, floor-mounted center, custom sub enclosure) @ $1,800
• Installation Labor: $1,551 (70 hours @ $22.16/hr shop rate - high-end specialist)
• Total System Cost: $12,000

System Architecture (20 Channels):

Internal Amplification (10 channels) - Rear Fill + Center:
• Ch 1-2: Rear Fill Tweeters (L/R) - 80W each
• Ch 3-4: Rear Fill Midbass (L/R) - 80W each
• Ch 5-6: Rear Fill Midrange (L/R) - 80W each
• Ch 7: Center Channel Tweeter - 80W
• Ch 8: Center Channel Midbass - 80W
• Ch 9-10: Reserved / Bi-amped center option - 150W each

RCA Pre-Outs (External Amplification):
• Ch 11-12: Front Tweeters via Arc Audio X2 600.6
• Ch 13-14: Front Midrange via Arc Audio X2 600.6
• Ch 15-16: Front Midbass via Arc Audio X2 600.6
• Ch 17-18: Subwoofers (L/R) via Arc Audio X2 1500.1 (750W each)
• Ch 19-20: Reserved for future expansion

Why Home Theater Audiophiles Choose P3 DSPA Plus: Home AV processors (Marantz AV8805, Anthem AVM 90) cost $4,000-6,000 and support 13-16 channels. P3 DSPA Plus provides 20-channel processing for $1,999—with integrated DSD256 player (home processors require separate SACD player). The 3x USB inputs accommodate entire DSD library (6TB total capacity). Audiophiles immediately recognize ADAU1463 DSP (same processor family as high-end home theater gear) and TI PCM1690 DAC (professional studio-grade). Result: Car audio system that matches home theater sonic characteristics—same tuning philosophy, same file formats, same reference-level expectations.