Description
Included in this kit
This bundle includes an ARC Audio LR2 Programmable DSP Level Controller, and an ARC Audio PS-6.8 6 Ch-in / 8 Ch-out Stand-Alone DSP w/ Idata Maestro "AR" Compatibility..
1x ARC Audio LR2 Programmable DSP Level Controller (LR-2)
ARC Audio LR2 Programmable DSP Controller
The ARC Audio LR2 is a programmable single-function digital remote controller designed for seamless integration with ARC Audio stand-alone DSPs and DSP amplifiers. As part of the ARC Audio DNA DSP ecosystem, the LR2 provides direct, intuitive control over one user-defined function—allowing precise, on-the-fly system adjustments without accessing software.
Ideal for OEM upgrades and fully custom DSP-based systems, the LR2 delivers predictable and synchronized system control through ARC Audio’s DNA 2.7+ PC software platform.
Programmable Single-Function Control
- Assignable to one dedicated control function per installation
- Common applications include master volume, subwoofer level, bass boost, and more
- Digital controller design for precise and repeatable adjustment
- Fully programmable through ARC Audio DNA 2.7+ software
Dual DSP Control Capability
The LR2 can control up to two ARC Audio DSPs simultaneously, making it an excellent solution for advanced multi-processor systems that require synchronized adjustments across components.
- Controls one DSP with included cable
- Controls two DSPs with the addition of a second LR2-compatible cable (sold separately)
- Maintains identical behavior across both processors
Installation & Included Hardware
- Includes 5-meter (20-foot) 4-pin low-impedance data cable
- Pre-mounted to right-angle L-bracket for quick installation
- Knob and circuit board removable from bracket for custom mounting applications
Specifications
| Product Type | DSP Controller |
| Controller Type | Digital |
| Function Controls | Single Function (User Programmable) |
| Feature Control | Single (Volume, Sub Level, Bass Boost, etc.) |
| Compatible With | All ARC Audio Stand-Alone DSPs & DSP Amplifiers |
| Control Quantity | Up to Two DSPs Simultaneously |
| Included Hardware | L-Bracket Mount & Cable |
| Cable Type | 5 Meter (20ft) 4-Pin Low Impedance Cable |
| Software Requirements | DNA 2.7+ |
1x ARC Audio PS-6.8 6 Ch-in / 8 Ch-out Stand-Alone DSP w/ Idata Maestro "AR" Compatibility. (PS-6.8)
ARC Audio PS6.8 8-Channel Digital Signal Processor
The ARC Audio PS6.8 delivers advanced DSP functionality in a compact, value-focused platform. Built around the Analog Devices ADAU1452 DSP core, the PS6.8 provides flexible signal routing, comprehensive tuning capability, and broad OEM integration support for aftermarket audio systems.
Overview
Flexible DSP Processing for OEM and Aftermarket Systems
The PS6.8 is a stand-alone digital signal processor designed to bring advanced tuning and integration capabilities to a wide range of vehicle audio systems. With 6 analog inputs and 8 output channels, it provides the flexibility needed for accurate signal routing and system optimization.
Built on the Analog Devices ADAU1452 DSP platform, the processor supports ARC Audio's DNA tuning software, giving installers and enthusiasts access to the same tuning environment used throughout the ARC DSP lineup.
Key Features
Designed for Modern Integration
- 6 differential analog inputs supporting RCA or speaker-level signals.
- 8 RCA outputs with output voltage up to 3.5V.
- Toslink optical and digital coaxial inputs.
- Support for digital audio signals up to 96kHz.
- DC and signal-sensing automatic turn-on capability.
- USB-C connectivity for tuning and expansion.
Signal Integration
OEM-Friendly Input Compatibility
The PS6.8 is engineered for integration into factory and aftermarket systems. Differential analog inputs accept signal levels from 2V to 16V RMS, allowing compatibility with a wide range of OEM source units and amplified audio systems.
DSP Architecture
24-Bit Signal Processing Platform
The PS6.8 utilizes a fixed-point native 24-bit DSP architecture based on the Analog Devices ADAU1452 processor. Signal conversion is handled by an AKM 5358B ADC and Cirrus Logic CS-4344 DAC platform.
- Analog Devices ADAU1452 DSP processor.
- AKM 5358B analog-to-digital conversion.
- Cirrus Logic CS-4344 digital-to-analog conversion.
- 8 total DSP output channels.
Control & Presets
User Preset Management
The PS6.8 supports up to four user-defined presets. Presets can be accessed through compatible optional control solutions, allowing system configurations to be switched without connecting a PC.
- Up to 4 user-defined presets.
- Optional LR-2 controller compatibility.
- Preset selection via optional manual trigger switches.
- Compatible with ARC Audio DNA tuning software.
System Expansion
Multi-Processor Capability
For advanced installations, multiple compatible processors can be linked through a continuously connected USB hub, allowing a single PC and GUI interface to control multiple DSP units simultaneously.
Multi-processor operation requires each processor to maintain a full-time USB connection through a non-amplified USB hub.
| Processor Type | Stand-Alone Unit |
| Processor Resolution | Fixed Point Native 24-Bit |
| Main DSP Processor | Analog Devices ADAU1452 |
| ADC | AKM 5358B |
| DAC | Cirrus Logic CS-4344 |
| Total DSP Channels | 8 |
| Analog Inputs | 6 Differential Inputs |
| Analog Input Type | RCA or Speaker Level |
| Input Sensitivity | 2V – 16V RMS |
| Input Impedance | 10k Ohms |
| RCA Outputs | 8 Channels |
| Maximum Output Voltage | Up to 3.5V |
| Optical Input | Toslink |
| Digital Coaxial Input | Yes |
| Maximum Digital Sample Rate | 96kHz |
| Operating Voltage | 8V–17.1V (Start-Stop Compliant to 4.5V) |
| Auto Turn-On | Signal & DC Sensing |
| User Presets | Up to 4 |
| Compatible Controller | Optional LR-2 |
| USB Connection | USB-C |
| Tuning Software | ARC Audio DNA |
| Dimensions | 9.875" (L) x 5.125" (W) x 1.1875" (H) |
The PS6.8 supports OEM integration, digital source connectivity, user presets, ARC DNA software tuning, and iDatalink Maestro AR compatibility, making it suitable for both factory upgrade and aftermarket audio systems.