Description
Included in this kit
This bundle includes an ARC Audio NIGHTHAWK 2-Channel Class-D amplifier (Same Chassis as Blackbird), No Built-in DSP 250X2 AT 4OHM, 800X1 BRIDGED @ 4 OR 2OHM, and an Arc Audio X2 800.8 DSP Multi-Channel DSP Amplifier (Eight Channels).
1x ARC Audio NIGHTHAWK 2-Channel Class-D amplifier (Same Chassis as Blackbird), No Built-in DSP 250X2 AT 4OHM, 800X1 BRIDGED @ 4 OR 2OHM (NIGHTHAWK)
The Nighthawk isn't just another amp—it’s built premium from the ground up. Every detail has been carefully engineered, with countless hours spent refining its design to deliver the kind of sound that hits hard and stays sharp, no matter the conditions.
Powered by a cutting-edge Class D driver and Infineon output stages, the Nighthawk brings serious performance to your setup. It’s built specifically as a bass amplifier and crushes power ratings at 40Hz—built to keep up with long rides and loud roads without missing a beat.
Whether you're a weekend cruiser or drive every day, the Nighthawk is made to deliver. Professional-grade sound, rugged design, and all the power you need to fuel your ride—this is the real deal.
Features
DC Auto Detect Turn On
Speaker Connection by High Current Plug
Selectable Ohm Load Stability
Stereo/Mono Switch allows single input operation.
Start Stop compatible.
Compatible with charging systems up to 17 Volts.
Variable Speed Ball Bearing Fan Cooling
Stereo Power @ 14.4V-1% THD All Channels Driven
4 Ohm = 250 Watts x 2
2 Ohm = 400 Watts x 2
1 Ohm = 400 Watts x 2
Bridged
4 Ohm = 800 Watts x 1
2 Ohm = 800 Watts x 1
Distortion
Below 0.02% THD from 100mW to 200 Watts
Best THD 0.005% 2 Watts to 20 Watts
THD 20Hz to 20KHz (1 Watt) .009%
Signal to Noise Ratio
-88dB Referenced to 1 Watt (2V)
-113dB Reference to Full Power (31.5V)
Crossover
55Hz -500Hz 12dB Per Octave
Highpass, Lowpass Full Range
State variable filters
Linkwitz Riley
Bandwidth
10Hz to 20KHz (-1dB)
10Hz to 32KHz (-3dB)
Operating Voltage
10.5VDC – 17.1VDC
Low voltage warning light
11.4VDC
Start Stop Voltage
4.6VDC
Gain Range
150mV – 5.25V
Input Type
Balanced
Operating Temperature
-4F – 180F (-20C -- 82C)
Fuses
3 x 30A
Type Mini ATM
Dimensions
10.35”(L) x 6”(W) x 2”(H)
260mm(L) x 152mm(W) x 51mm(H)
1x Arc Audio X2 800.8 DSP Multi-Channel DSP Amplifier (Eight Channels) (X2-800.8-DSP)
ARC Audio X2800.8 DSP – 8-Channel Class-D Amplifier with 12-Channel DSP
The ARC Audio X2800.8 DSP is an integrated 8-channel Class-D amplifier and 12-channel DSP designed for modern vehicles where space, control, and clean OEM integration matter. Built around an Analog Devices ADAU1462 32-bit processor with AKM Velvet Sound converters, it provides precise tuning tools, flexible routing, and stable multi-channel power for active front stages, subwoofer systems, and complete OEM replacement installations.
Purpose-built for Real-World System Design
With eight bridgeable Class-D channels and twelve DSP channels, the X2800.8 DSP is capable of driving front stages, rear fill, and subwoofers from a single compact chassis while still providing processed outputs for external amplification. Power is rated at 50 watts x 8 at 4 ohms or 85 watts x 8 at 2 ohms, with the option to bridge for 170 watts x 4 at 4 ohms (2-ohm bridged operation is not recommended).
Eight balanced analog inputs accept both RCA and speaker-level signals with 0.5–32 V sensitivity, so the amplifier can be used behind aftermarket head units or directly on factory amplified systems. A digital coaxial input supports sample rates up to 96 kHz for high-resolution playback. ARC Audio’s DNA software unlocks full control over EQ, crossovers, time alignment, phase, summing, and mix routing, with up to four user presets for different tuning profiles or listening preferences.
- Integrated DSP amplifier architecture reduces wiring and saves space compared to separate DSP and amplifier components.
- Balanced analog inputs and high input voltage capability simplify connection to OEM and aftermarket sources.
- Four high-voltage RCA outputs (up to 8 V) provide processed signals for additional amplifiers in larger systems.
- Auto-sense turn-on (signal or DC BTL) and adjustable remote turn-on timing streamline integration and prevent pops and thumps.
- Fan-assisted cooling and smart thermal management support under-seat and hidden installations where airflow is limited.
Integration, Control & System Expansion
The X2800.8 DSP is designed for clean OEM integration and easy system expansion. iDatalink Maestro AR compatibility allows direct digital communication with supported factory source units, keeping OEM features while routing audio into the DSP for full control. Auto-sense turn-on and user-adjustable timing for both device power-up and remote output help match system behavior to the vehicle and connected amplifiers.
- Up to four user-defined presets, selectable via ARC DNA software, optional LR-2 controller, or manual trigger switches.
- USB-C connection for tuning with ARC Audio DNA software (Windows PC), with support for multi-processor systems using a powered USB hub.
- Common input gain structure across channels for fast setup and consistent level control.
- Start/stop compliant DSP power range, designed to remain stable in vehicles with aggressive voltage drop during engine cranking.
- Compact footprint suitable for under-seat, side-panel, or factory amplifier locations to preserve cargo and cabin space.
| Processor Type | Integrated DSP amplifier |
| DSP Resolution | Fixed-point native 32-bit |
| Main DSP Processor | Analog Devices ADAU1462 |
| ADC | AKM Velvet Sound 5558B |
| DAC | AKM Velvet Sound AK4438 |
| Total DSP Channels | 12 |
| Amplified Output Channels | 8 Class-D channels, bridgeable |
| Power @ 4 Ω Stereo | 8 × 50 watts |
| Power @ 2 Ω Stereo | 8 × 85 watts |
| Power @ 4 Ω Bridged | 4 × 170 watts (2 Ω bridged not recommended) |
| RCA Outputs | 4 channels, up to 8 V |
| Frequency Response | 10 Hz – 22 kHz |
| S/N Ratio (1 V analog) | 88.5 dB (1:1) |
| S/N Ratio (4 V analog) | 98.5 dB (1:1) |
| S/N Ratio (digital) | -119.3 dB |
| Analog Inputs | 8 balanced channels (RCA or speaker-level) |
| Analog Input Sensitivity | 0.5 V – 32 V |
| Analog Input Impedance | 10 kΩ |
| Input Gain Type | Common gain across all input channels |
| Digital Inputs | Coaxial S/PDIF (no optical) |
| Max Digital Sample Rate | 96 kHz |
| Auto-Sense Turn-On | Yes – signal & DC (BTL) using Ch 1/2 analog inputs |
| DSP Operating Voltage | 8.0 – 17.1 V (start/stop compliant to 4.5 V) |
| Amplifier Operating Voltage | 8.0 – 17.1 V |
| Switching Frequency | Adjustable Class-D switching frequency via DNA software |
| Cooling | Built-in fan cooling |
| Fuse Rating | 3 × 30 A |
| User Presets | Up to 4 user-defined presets |
| Preset Control | Via DNA software, optional LR-2 controller, or manual trigger switches (+/-) |
| External Control Options | LR-2 remote (optional), dual external control not supported |
| Wi-Fi Control | AXP Wi-Fi adapter not supported |
| On/Off Timing Control | Device turn-on up to 40 ms, turn-on hold up to 40 ms, auto-sense hold up to 200 ms |
| Remote Output Timing | Remote turn-on output adjustable from 0.05 – 40 seconds |
| OEM Integration | iDatalink Maestro AR amplifier replacement capable (vehicle module, T-harness, and ARC/iData signal harness required) |
| Multi-Processor Support | Yes – multiple DSPs controllable via full-time USB connections and non-amplified USB hub |
| USB Connection | USB-C for tuning and firmware updates |
| Tuning Software | ARC Audio DNA software only |