Conductor Pro Premium One-Touch Remote Control

HELIX DSP MINI

Small in size, but a big on sound!

High-tech in a compact format – despite its size, the HELIX DSP MINI is packed with the finest technology. A state-of-the-art 64-bit audio DSP, combined with a 96 kHz sampling rate and a high-resolution audio bandwidth of over 40 kHz, ensures phenomenal sound quality. This is complemented by new, unique DSP sound features such as "Augmented Bass Processing," the "StageXpander," and the "RealCenter" function, which set new acoustic standards for sound tuning.

But the DSP MINI doesn't just usher in a new era in signal processing technology acoustically. A particularly powerful 32-bit CoProcessor (ACO) for all control tasks provides a crucial speed boost, especially for data communication with our DSP PC-Tool software, but also for switching between different sound setups. All the better that there are now ten internal memory slots instead of the previous two.

But that's not all – the basic equipment naturally includes the high-level input with ADEP.3 circuit (Advanced Diagnostics Error Protection, Generation 3), the "Auto Remote" switch, an optical input, and the HELIX Extension Card Slot (HEC Slot) for system expansion such as Bluetooth® audio streaming or high-resolution audio streaming via USB. In terms of design, the DSP MINI presents itself in the typical HELIX clean look – far too beautiful to hide away "somewhere" in the vehicle due to its small dimensions. It almost goes without saying that the HELIX DSP MINI can be configured with our professional and particularly user-friendly DSP PC-Tool Software V4. So much for size matter! Features: Extremely powerful "Fixed Point" audio DSP with 64-bit resolution and 1.2 billion MAC operations per second; High-resolution audio bandwidth up to over 40 kHz for unsurpassed sound quality; ACO – Advanced 32-bit CoProcessor for all control and communication tasks; 10 internal memory locations for sound setups; Lightning-fast switching between sound setups; High-speed data transmission and improved Ease of Use

Special Features:

96 kHz Sampling Rate

The HELIX DSP MINI offers signal processing with a double sampling rate of 96 kHz. This means the audio bandwidth is not limited to the usual 22 kHz, but allows for an extended frequency response up to over 40 kHz. However, the higher sampling rate places significantly higher demands on the DSP itself, as the number of possible calculations is halved when the sampling rate is doubled. Only the use of the very latest generation of chips makes it possible to increase the sampling rate to 96 kHz despite the increased functionality.

Intelligent High-Level Input ADEP.3

Modern, factory-installed car radios are becoming increasingly intelligent in terms of diagnosing the connected speakers. The latest generation, in particular, is equipped with additional monitoring functions, which can cause error messages or even malfunctions when an additional signal processor is connected. The new ADEP.3 circuit (Advanced Diagnostics Error Protection Generation 3) prevents these problems without unnecessarily straining the radio's speaker outputs at high levels.

ACO - Advanced 32-Bit CoProcessor

The HELIX DSP MINI uses a particularly powerful, latest-generation 32-bit coprocessor for all internal and external control and communication tasks. In contrast to the previously used 8-bit processor, this results in significant speed advantages, not only when switching between different sound setups but especially in data communication with our DSP PC-Tool software. Another significant advantage is the coprocessor's integrated, native bootloader. This enables software upgrades for all DSP components, allowing, for example, the microcontroller-controlled ADEP.3 circuit to be adapted to future changes in factory radio diagnostic systems or the device to be expanded with additional interfaces. Furthermore, thanks to the new flash memory, the ACO offers space for 10 sound setups instead of the usual two.

Start-Stop Capability

The power supply in the HELIX DSP MINI ensures a stable internal voltage supply even during brief voltage drops down to 6 volts. This guarantees that the HELIX DSP MINI remains fully functional even when the engine is started.

Power Save Mode

Power Save Mode is activated in the default settings of the DSP PC-Tool software. It allows the power consumption of the amplifiers connected to the signal processor to be drastically reduced when no input signal is present for more than 60 seconds. It should be noted that many vehicles today are equipped with CAN or similar internal bus systems that keep the radio switched on "invisibly" to the user for up to 45 minutes, even if the vehicle has been left and locked. As soon as the "Power Save Mode" is active, the remote output and thus the connected amplifiers are switched off. The HELIX DSP MINI reactivates the remote output within one second as soon as a music signal is present at one of its inputs. It is also possible to vary the switch-off delay or to completely deactivate the "Power Save Mode" using the DSP PC-Tool software. Automatic Digital Signal Detection: Switching between the analog and digital inputs is signal-controlled. As soon as an audio signal is detected at the optical input, the signal processor switches to this input. In the DSP PC-Tool software, this function can be deactivated, or alternatively, manual control via an optional remote control can be selected.

DSP Features

RealCenter

The “RealCenter” function is a proprietary algorithm from Audiotec Fischer that emphasizes the monaural information of the left and right front channels to create a unique center signal. Unlike conventional methods that simply sum the channels, this method also dynamically controls the center signal based on the stereo information content of the left and right channels. This means that the center channel does not reproduce a signal if only the left or only the right channel is delivering an audio signal. With conventional algorithms, the center channel would only be 6 dB quieter in this case. Audiotec Fischer’s “RealCenter” thus enables a unique, wide soundstage – optimal for both driver and passenger! The disadvantages of a conventional center channel, such as an intrusive, narrow spatial soundstage, are finally a thing of the past.

Augmented Bass Processing

Audiotec Fischer's proprietary "Augmented Bass Processing," consisting of two revolutionary sound features: "Dynamic Bass Enhancement" and "SubXpander." These are specifically designed to dramatically improve the bass response of subwoofers.
"Dynamic Bass Enhancement" ingeniously combines maximum deep bass foundation and high maximum sound pressure level—regardless of the music genre or radio sound settings. Depending on the input signal, "Dynamic Bass Enhancement" amplifies the lower frequency range and also varies the cutoff frequency of the subsonic filter. The result is significantly more powerful, deeper bass reproduction at low and medium volumes without the risk of mechanically or electrically overloading the subwoofer at high volumes. It's simply fascinating what kind of bass performance is suddenly possible.
For those who want the low frequencies even deeper and "blacker," the "SubXpander" can be activated. This adds subharmonic tones to the fundamental frequencies in the 50 to 100 Hz range.

StageXpander

Depending on the speaker arrangement in the vehicle, a more or less wide stereo image can be achieved in the front seats. If a center speaker is also installed, it can sometimes further limit the spatial imaging of the music. This is where Audiotec Fischer's new "StageXpander" comes into its own – a sound feature that seems to eliminate acoustic limitations, thus enabling a significantly wider stereo base without negatively impacting the precision of voice or instrument localization. The effect can be adjusted to personal taste in four stages.

ClarityXpander

Want more transparency and substance in your treble reproduction? Audiotec Fischer now offers just the right tool with the “ClarityXpander”.
When used correctly (and therefore selectable in three stages), it gives the overtones additional brilliance – particularly useful if the original speakers lack the necessary sparkle in the treble range. This extra treble boost is available not only for the two front channels, but also separately adjustable for the center channel. And because even a tiny bit too much of the latter, especially in combination with music rich in overtones, can tire the ear, an automatic, dynamic control of the additional overtone content can even be activated here.

Technical Data

Scope of Delivery

1 x HELIX DSP MINI Signal Processor
1 x USB Data Cable
1 x Mounting Hardware
1 x User Manual