ARC AUDIO
PS6.8
8-channel digital sound processor (DSP)
$3,099.00TT
Price VAT Inclusive
PS6.8: Affordable DSP Precision Without Compromise
The PS6.8 brings ARC Audio’s advanced DSP performance to a wider audience, offering full-featured tuning and clean integration in a value-focused package. Built on the 24-bit Analog Devices ADAU1452 DSP the PS6.8 gives installers and enthusiasts the tools to precisely shape their sound—without the higher cost of premium hardware.
With 6 analog inputs and 8 output channels, the PS6.8 is perfect for systems where accurate signal routing, EQ control, and system flexibility are key. It supports digital coaxial and Toslink optical input, and is fully compatible with ARC Audio’s DNA tuning software—delivering a seamless tuning experience across the entire product family.
Thanks to its compact design and wide signal compatibility, the PS6.8 is ideal solution for OEM integration applications, supporting input voltages up to 16V RMS. It also supports iDatalink Maestro AR for plug-and-play installation in select factory-amplified vehicles (Idata Maestro vehicle specific module and harness required), making it a go-to processor for budget-conscious enthusiasts and experienced installers alike.
Key Features:
8 channels of output with 6 analog inputs
Built on Analog Devices ADAU1452 DSP core
Digital coaxial and Toslink input (up to 96kHz)
Full ARC DNA software tuning features and tools
DC signal sensing, 0.5–16V input compatibility
Optional LR1 remote and up to 4 user-defined presets
iDatalink Maestro AR compatible for factory systems
Whether you’re upgrading an OEM system or building a streamlined aftermarket rig, the PS6.8 delivers flexible DSP performance and system tuning precision—without the premium price tag.
| Processor Type | Stand-Alone Unit |
| Processor Resolution | Fixed Point Native 24-Bit |
| Main DSP Processor | Analog Devices ADAU1452 |
| ADC (Analog to Digital Converter) | AKM 5358B |
| DAC (Digital to Analog Converter) | Cirrus Logic CS-4344 |
| Total DSP Channels | 8 |
| Dual Footprint Op-Amp Design | No |
| RCA Channels Out | 8 |
| RCA Output Voltage | Up to 3.5V |
| Input Channels (Analog) | 6 |
| Input Channels (Analog Type) | Differential (RCA or Speaker Level) |
| Input Sensitivity (Analog) | 2V – 16V RMS |
| Input Impedance (Analog) | 10k Ohms |
| Input Gain Type | Common across all input channels |
| Optical Input | Toslink |
| Digital Coaxial Input | Yes |
| Max Digital Input Sample Rate | 96kHz |
| Frequency Response | TBD |
| S/N Ratio 1V 1:1 | TBD |
| S/N Ratio 4V 1:1 | TBD |
| S/N Digital | TBD |
| DSP Operating Voltage | 8V – 17.1 (Start Stop Compliant to 4.5V) |
| Auto-Sense Turn-on | Yes – Signal & DC (BTL) (Uses Ch 1/2 Analog Inputs Only) |
| User Defined Presets | Up to 4 |
| Preset Control Without PC Or Controller | Yes – Optional Manual Trigger Switches +/- for up to 4 presets (Not Included) |
| Compatible External Control (Optional) | Yes – LR-2 (Sold Separately) |
| Dual External Control Use (Optional) | N/A |
| AXP Wifi Control Adapter Card | N/A |
| DSP Integrated On/Off Timing Control | Device Turn-on (Up to 40ms), Turn on Hold (Up to 40ms), Auto-sense hold time (up to 200ms) |
| DC Input Jack | No |
| External Amplifier Remote “Turn-on Output” On/Off Timing Control | Remote Turn on lead output adjustable from .05 – 40 seconds |
| iDatalink Maestro Amplifier Replacement Interface Capable | Yes – Requires Vehicle compatible replacement module & T-Harness and ARC/iData signal harness adapter |
| iDatalink Maestro Compatibility List | Check here |
| Multi-Processor System Expandability | Yes – Requires each processor be connected with a full-time USB connection to a non-amplified USB hub. Also allows for full control of multiple DSPs with a single PC and GUI |
| Copper Series Matching Trim Package | N/A |
| USB Connection Type | USB-C |
| Tuning Software Interface | ARC Audio DNA Only |
| DNA Tuning Software Interface Download | Download here |
| DNA Software Tuning Features | Click here for tuning features |
| Dimensions | 9.875″(L) x 5.125″(W) x 1.1875″(H) |