Digital High-Res 6-channel signal processor with 96 kHz / 24 Bit signal path

• Extremely powerful 64 Bit “fixed point” Audio DSP with 1.2 billion MAC operations per second
• High Resolution audio bandwidth up to more than 40 kHz for unrivalled sound quality
• A/D and D/A signal converters from BurrBrown
• Advanced CoProcessor (ACO) for extended feature set
  • Input Signal Analyzer (ISA) and InputEQ
  • DSP Sound Effects (SFX) such as the “Augmented Bass Processing” which dynamically optimizes the bass response of the subwoofer, the “StageXpander” that significantly widens the stereo perspective, the “RealCenter” function, which allows a perfectly focussed sound staging for both driver and co-driver and much more
  • 10 internal memory locations for sound setups
• Smart highlevel input with ADEP.3 circuit and Auto Turn-On function
• Optical  digital input in SPDIF format
• Compact, future-proof Smart Control Port (SCP)
• HEC slot for system expansions for additional input / output modules like Bluetooth® Audio Streaming, High Resolution Audio Streaming via USB etc.
• Freely definable signal routing with separate matrices for line, SPDIF and HEC/AUX
• Optimal signal path and power supply for further improved sound quality
• “Ground lift” switch to avoid ground loops
• Very compact dimensions for easy integration into the vehicle
• Easiest configuration via the intuitive DSP PC-Tool V4 software

Special features:

96 kHz sampling rate

The HELIX DSP MINI MK2 allows to handle all signals with the doubled sampling rate of 96 kHz. Thus the audio bandwidth is no longer limited to usual values like 22 kHz but allows an extended frequency response to more than 40 kHz. Doubling the sampling rate requires significantly higher DSP power as the number of possible arithmetic operations is halved. Only the implementation of the latest DSP chip generation allows raising the sampling rate to 96 kHz and adding new features at the same time.

ACO – Advanced 32 Bit CoProcessor

The HELIX DSP MINI MK2 incorporates an extraordinary powerful 32 Bit CoProcessor of the latest generation for all monitoring and communication tasks, both internally and externally. In opposite to the 8 Bit predecessor generation this MCU achieves way higher speeds with respect to setup switching and data communication with our DSP PC-Tool software. A further significant advantage is the integrated, native boot loader of the CoProcessor. It allows software upgrades of all components of the DSP in order to adjust the microcontroller-controlled ADEP.3 circuit for example at future modifications / changes in the diagnostic system of factory radios or if the device will be extended with additional interfaces. In addition, thanks to the new flash memory, the ACO offers 10 memory locations for sound setups instead of the common two.

Smart highlevel input ADEP.3

Modern, factory-installed car radios incorporate sophisticated possibilities of diagnosing the connected speakers. In particular the latest generation of car radios are equipped with additional monitoring functions so that failure messages and loss of specific features (e.g. fader function) quite often appear if a signal processor will be hooked up – but not with the DSP MINI MK2.
The new ADEP.3 circuit (Advanced Diagnostics Error Protection, 3rd Generation) avoids all these problems without loading the speaker outputs of the OE radio during high volumes unnecessarily.

Start-Stop capability

The switched power supply of the HELIX DSP MINI MK2 assures a constant internal supply voltage even if the battery’s voltage drops to 6 Volts during engine crank.

Power Save Mode

The Power Save Mode is incorporated in the basic setup. It allows to significantly reduce the power consumption of the amplifiers that are connected to the HELIX DSP MINI MK2 once there’s no input signal present for more than 60 seconds. Please note that in many up-to-date cars with “CAN” or any other internal
bus structures it may happen that the radio remains “invisibly” turned on for up to 45 min. even after locking and leaving the car! Once the “Power Save Mode“ is active the remote output and therefore the connected amplifiers will be turned off. The HELIX DSP MINI MK2 will reactivate the remote output within a second if a music signal is applied. It is possible to either modify the turn-off time of 60 sec. or completely deactivate the “Power Save Mode” via the DSP PC-Tool software.

Automatic Digital Signal Detection

The HELIX DSP MINI MK2 allows signal-controlled switching between the analog inputs and the digital input. As soon as an input signal is detected on the Optical Input, the signal processor automatically switches to this input. This feature can be deactivated in the DSP PC-Tool software. Alternatively you can use an optional remote control for manual switching between analog and digital inputs.

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