Helix – Ubiquitous Reference Standard Car Audio
Since its conception in 1990 Audiotec Fischer has evolved from a niche supplier to an internationally recognised leader in innovative audio products. A DIN ISO 9001 and ISO 14001 certified company, it now delivers its award-winning brands Brax, Helix and Match to more than fifty countries worldwide. To Audiotec Fischer the label "Made in Germany" has always been more than just a designation of origin; it's a promise of quality that everyone at the Schmallenberg site remains committed to. Audiotec Fischer has more than thirty years of experience in the development and manufacture of high-end car and home audio products. From the initial brief through to the finished product; all components are assembled in-house with the sole aim of reproducing acoustic signals as authentically as possible whilst optimizing the sound experience ever further.

Processor Series – The Passion For Perfected Sound
It’s not the components, it’s the environment. Fundamental car audio components are often unfairly blamed for poor aural performance, despite the blame laying elsewhere. See whether you have OEM or enormously expensive speakers your windscreen still reflects, your right leg still absorbs the midrange and you’re still sitting to one side with a whole instrument cluster before you. It’s for this reason that all vehicles require a sound processor. These devices can rectify all negative cabin phenomenon and make even the most rudimentary components sound amazing.

However a questionable quality processor is conducive to headaches aplenty, that’s why you need a Helix device. Helix processors are renown around the globe for being amongst the best processors in history. Trickling technology down through its various processors means even its entry level processor far outperforms all other comers. Whether you’re planning a budget system or one only the Royal Family could afford; Helix has you well covered when it comes to processing it to perfection.

Design Ideologies
The Audio Measurement Interface (AMI) is the precision tool of choice for analyzing both electrical and acoustic signals and the ideal companion for anyone who demands maximum accuracy and seamless integration within DSP based audio systems. Designed as a compact yet versatile interface; it provides all essential functions required for precise signal evaluation, system tuning and optimisation. Fully tailored to the capabilities of Helix’s superb DSP PC-Tool software.

Flexible Signal Access
The AMI features a microphone input compatible with all condenser microphones including adjustable gain and switchable phantom power; ideal for professional acoustic measurement. A dedicated line input with switchable sensitivity between 1 V or 40 V ensures accurate analysis of both low level and high level signals. Stereo signal output is available via RCA or optical digital connection for direct playback into a DSP. The integrated loop back function opens up advanced measurement options, such as precise phase response and more complex signal path evaluations.

Seamless Integration With DSP PC-Tool
Developed for full compatibility with the Audiotec Fischer DSP PC-Tool, the AMI becomes a powerful measurement device that unlocks the full potential of our software’s tuning features. This includes the advanced input signal analyzer (AISA) for the detection and correction of factory-applied EQ curves, time alignment and all-pass filters as well as real-time analyser (RTA) support for precise frequency response measurements and automated tuning via ATF’s proprietary TuneEQ algorithm. The AMI also supports automatic time measurement (ATM) for fully automated speaker delay calibration. Delivering perfect timing and imaging across all channels.

Ready To Go
The AMI operates via USB and requires no external power supply, ensuring maximum mobility and ease of use. The scope of delivery includes a premium 9.85′ / 3 m USB-C cable with USB-A adaptor, an RCA-to-highlevel signal connector and a 16 GB USB 3.0 flash drive with preinstalled DSP tuning tracks. Fully compatible with Windows 10 & 11, macOS, Android, iOS and supporting ASIO drivers for professional audio applications; the AMI is a plug-and-play solution designed for accurate results wherever your setup takes you.

Design Features
The rich heritage of this astute and masterful designer, together with its ever-increasing technical acumen; is conducive to these components featuring a vast array of impressive design ideologies and latest technological advancements. We canvass some of these technologies further below.
– Microphone input compatible with all condenser microphones, featuring adjustable gain and phantom power.
– Line input with adjustable sensitivity between 1 V or 40 V for low-level and high-level signal analysis.
– Stereo signal output with RCA and optical digital outputs for direct playback into a DSP.
– Loopback functionality for phase response and other advanced measurement tasks.
– USB-powered operation, no external power supply required.
– Optimised for Audiotec Fischer’s DSP PC-Tool.
– Seamlessly integrates for precise analysis and tuning.
– Works with Advanced Signal Input Analyzer (AISA) to detect and correct factory installed allpass filters, time alignment and equalization in DSP input signals.
– Compatible with Real-Time Analyzer (RTA) for accurate frequency response measurements and automatic equalization using the proprietary TuneEQ algorithm.
– Supports Automatic Time Measurement (ATM) for fully automated speaker time-delay calibration.
– Includes a 9.85′ / 3 m USB-C cable with USB-A adaptor and an RCA-to-highlevel connector.
– 16 GB USB 3.0 flash drive with preloaded DSP tuning tracks.
– Compatible with Windows 10, Windows 11, macOS, Android and iOS.
– Supports ASIO drivers for advanced audio applications.

Electrical Specifications
– Nominal configuration: tuning and measurement interface
– Frequency response: 7 Hz – 44000 Hz
– Signal-to-noise ratio: 101 dB
– Input sensitivity: 1 V – 40 V
– Input impedance: 10 kOhms

Physical Specifications
– Length: 50 mm
– Width: 50 mm
– Height: 25 mm
– Weight: 0.2 kg

Documentation
– Software download
– User manual

Important Disclaimers
Given the dynamic nature of electronics industries these days; below are listed some very important specifics you need to be aware of.

Brand Authorization And Stock Sourcing
We are a fully authorised Australian dealer of this brand and all stock is sourced through legitimate channels. It therefore enjoys full Australian warranty, backing and support.

Pricing Structure
Whilst we endeavor to offer the best price possible, we ask that if you do find a better price elsewhere from an authorised dealer; please contact us. Also be aware that we regularly conduct group buys and sales, therefore pricing can sometimes be subject to change without notice.

Stock Structure
Being a dynamic store is conducive to our inventory constantly changing. We list only a small portion of our stable online, usually products most popular. Aside from these we also stock numerous other variants and configurations of these products, hence if you don’t see what you’re after please contact us.

Shipping
All our products are shipped with registered and insured postage. Upon ordering you’ll be issued with a receipt, a consignment note via which you can track your order, and we’ll also SMS you photos of the package for identification purposes.

Technical support
This last one we cannot emphasise enough! Please contact us if you require any further information or assistance with the setup and use of this product, especially pertaining to aspects more technical. As we want you to get the very best from this product.