1. Introduction
The Helix DSP PRO MK2 is a state-of-the-art 10-channel digital sound processor engineered to deliver unparalleled audio performance in your vehicle. Featuring advanced 64-bit DSP technology and high-resolution 32-bit converters, this unit provides precise control over every aspect of your sound system, ensuring an immersive and detailed listening experience. This manual will guide you through the installation, configuration, and operation of your DSP PRO MK2.
Figure 1.1: Top view of the Helix DSP PRO MK2, highlighting the brand and model.
2. Key Features
- High-Resolution Audio: Utilizes a powerful 64-bit audio DSP and native 32-bit DA/AD converters for exceptional sound quality and signal resolution.
- Enhanced Power Supply: Improved internal power supply and increased maximum output voltage of 8 volts for optimized audio performance.
- ADEP Circuit: Advanced Diagnostics Error Protection (ADEP) circuit in the high-level input bypasses factory speaker diagnostic systems, ensuring seamless integration with OEM head units.
- Auto Remote Switch: Features an 'Auto Remote' switch for automatic turn-on/off via high-level inputs.
- Flexible Digital Inputs: Software-controlled switching between optical and coaxial digital inputs.
- HEC Slot: Equipped with a HELIX Extension Card (HEC) slot for additional input/output modules, such as Bluetooth audio streaming or high-resolution USB sound cards.
- Advanced Software Control: Configurable via the DSP PC-Tool V4, offering extensive sound optimization options including an integrated filter, extended runtime correction, and switchable sound characteristics for DA converters.
3. Safety Instructions
Please read these safety instructions carefully before installing and operating the Helix DSP PRO MK2. Failure to follow these guidelines may result in injury, damage to the device, or damage to your vehicle.
- Power Disconnection: Always disconnect the vehicle's battery negative terminal before performing any installation or wiring work.
- Professional Installation: Installation should be performed by qualified personnel to ensure proper wiring and functionality.
- Environmental Conditions: Do not expose the device to moisture, water, or extreme temperatures. Ensure adequate ventilation around the unit.
- Do Not Open: Do not attempt to open or modify the device. This will void the warranty and may cause damage.
- Proper Wiring: Use appropriate gauge wiring for power and ground connections. Ensure all connections are secure and insulated to prevent short circuits.
- Vehicle Electrical System: Ensure your vehicle's electrical system can support the additional power requirements of the DSP.
4. Package Contents
Upon opening the package, please verify that all components are present and in good condition. The standard package for the Helix DSP PRO MK2 typically includes:
- Helix DSP PRO MK2 Digital Sound Processor Unit
- USB Cable for PC connection
- Power Connector
- High-Level Input Connector
- Mounting Hardware (screws)
- User Manual (this document)
If any items are missing or damaged, please contact your authorized Helix dealer immediately.
5. Setup and Installation
Proper installation is crucial for optimal performance of your Helix DSP PRO MK2. Follow these steps carefully:
5.1 Mounting the Unit
Choose a secure, dry location in your vehicle that allows for adequate ventilation and easy access to connections. Ensure the mounting surface is stable and free from vibrations. Use the provided mounting hardware to secure the DSP PRO MK2.
5.2 Power Connections
Connect the power wires to the designated terminals on the DSP PRO MK2 power connector:
- GND (Ground): Connect to a clean, unpainted metal surface of the vehicle chassis. Ensure a solid, low-resistance connection.
- +12V (Battery): Connect directly to the vehicle's positive battery terminal via a fused power cable. The fuse should be located within 18 inches (45 cm) of the battery.
- REM (Remote Turn-On): Connect to the remote output of your head unit or an ignition-switched 12V source. The DSP PRO MK2 also features an 'Auto Remote' function for high-level input sensing.
5.3 Input Connections
The DSP PRO MK2 offers various input options:
- RCA Line Inputs (A-H): Connect your head unit's RCA pre-outs to these inputs. The sensitivity can be adjusted via software.
- High-Level Inputs: For integration with OEM head units that lack RCA outputs, connect your speaker-level signals to the high-level input connector. The ADEP circuit ensures compatibility with factory diagnostic systems.
- Digital Inputs (Coaxial/Optical): Connect digital audio sources (e.g., media players, external DACs) to the SPDIF coaxial or optical inputs. Switching between these inputs is controlled via the DSP PC-Tool software.
Figure 5.1: Rear panel connections, including line inputs, digital inputs, and high-level inputs.
5.4 Output Connections
Connect the 10 RCA outputs (A-J) of the DSP PRO MK2 to the RCA inputs of your external amplifiers. Each output channel can be independently configured and processed using the DSP PC-Tool software.
Figure 5.2: Rear panel showing RCA outputs, USB port for PC connection, and control input.
5.5 USB Connection
Connect the DSP PRO MK2 to your computer using the provided USB cable. This connection is essential for configuring the DSP using the Helix DSP PC-Tool V4 software.
6. Operating Instructions
The Helix DSP PRO MK2 is primarily controlled and configured via the dedicated DSP PC-Tool V4 software. This software provides a comprehensive interface for all audio processing functions.
6.1 Software Installation
Download and install the latest version of the Helix DSP PC-Tool V4 software from the official Helix website onto your computer. Follow the on-screen instructions for installation.
6.2 Initial Setup and Configuration
- Ensure the DSP PRO MK2 is powered on and connected to your computer via USB.
- Launch the DSP PC-Tool V4 software. The software should automatically detect the connected DSP.
- Input Routing: Configure the input channels (RCA, High-Level, Digital) and assign them to the desired processing channels.
- Output Routing: Assign processed channels to the 10 RCA outputs, corresponding to your amplifier and speaker setup.
- Equalization: Utilize the extensive graphic and parametric equalizers for precise frequency response adjustments for each channel.
- Crossovers: Set up high-pass, low-pass, and band-pass filters for each speaker to ensure proper frequency distribution.
- Time Alignment: Accurately adjust the time delay for each speaker to ensure all sound waves arrive at the listening position simultaneously, creating a precise soundstage. The software allows for adjustments in 3.5 mm increments.
- Phase Control: Adjust the phase of individual channels to correct any phase cancellations.
- Level Control: Fine-tune the output levels of each channel.
- Save Settings: Once configured, save your settings to the DSP's memory and also save a backup file on your computer.
6.3 Using HEC Modules
If you have installed an optional HELIX Extension Card (HEC) module (e.g., Bluetooth, USB sound card), refer to the specific instructions provided with the module for its integration and operation within the DSP PC-Tool software.
7. Maintenance
The Helix DSP PRO MK2 is designed for reliable operation with minimal maintenance. Follow these guidelines to ensure its longevity:
- Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish.
- Ventilation: Ensure that the unit's ventilation openings are not obstructed. Proper airflow is essential to prevent overheating.
- Connections: Periodically check all power, input, and output connections to ensure they are secure and free from corrosion.
- Firmware Updates: Check the official Helix website periodically for firmware updates. Keeping the firmware updated can improve performance and add new features. Firmware updates are typically performed via the DSP PC-Tool software.
8. Troubleshooting
If you encounter issues with your Helix DSP PRO MK2, refer to the following troubleshooting guide. For more complex problems, consult your authorized Helix dealer.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power / Unit does not turn on |
|
|
| No sound output |
|
|
| Distorted or poor sound quality |
|
|
| DSP not detected by PC-Tool |
|
|
9. Specifications
| Feature | Specification |
|---|---|
| Model Number | 02055DSPPROMK2 |
| DSP Processor | 64-bit, 295 MHz |
| Channels | 10 |
| DA/AD Converters | 32-bit Native |
| Sampling Rate | 96 kHz |
| RCA Line Inputs | 8 (2-4V, 2 channels switchable to 250-500mV) |
| High-Level Inputs | 8 (5-10V or 10-20V) with ADEP circuit |
| Digital Inputs | 1 x Coaxial SPDIF, 1 x Optical SPDIF |
| RCA Outputs | 10 (max. 8 volts) |
| Remote Outputs | 1 |
| Signal-to-Noise Ratio (Digital) | 116 dB |
| Signal-to-Noise Ratio (Analog) | 108 dB (A) |
| Time Correction Range | Up to 5 ms per channel, 3.5 mm increments |
| Expansion Slot | HELIX Extension Card (HEC) slot |
| Manufacturer | Helix |
10. Warranty and Support
The Helix DSP PRO MK2 comes with a manufacturer's warranty. Please refer to the warranty card included with your purchase for specific terms and conditions, including the warranty period and coverage details. Keep your proof of purchase for warranty claims.
For technical support, troubleshooting assistance beyond this manual, or warranty inquiries, please contact your authorized Helix dealer or visit the official Helix website for support resources and contact information.
Online Resources:
- Official Helix Website: www.audiotec-fischer.com (for software downloads, firmware updates, and additional support)
