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Tech Tip: Helix DSP Software Setup, Part 2: Input EQ, Summing, Automatic Time Measurement, Tune EQ

       This is our second post going over the Audiotec Fischer Helix, Brax, or Match DSP software. For this second video, we are focusing on the  Helix DSP software Setup, Input EQ, summing, Automotive Time, Measurement Tune EQ, and more!

Please note that the software used is the V5.00.05, so some things may change as they update the software, which they regularly do. 

Helix DSP Input EQ - The input EQ on the Audiotec Fischer DSP PC Tool software is the most powerful available. In this software version, it features up to 5 bands of parametric, shelf, and all pass filter equalization, as well as per-channel input delay.

Summing - Combining multiple inputs per output to acheive a full-range stereo signal and using the basic input RTA.

Automatic Time Measurement - In this video we go over how to use the Audiotec Fischer PC Tool feature that automatically and accurately sets time alignment for you.

Audiotec Fischer Tune EQ - We also go over how to use the Tune EQ automatic EQ feature. 

If you have any specific requests on tech tips regarding the Audiotec Fischer DSP PC Toll Software, or anything else related to car audio or sound treatment, please email us with a request. Thank you!

Be sure to check out Part 1, here.

If you have any specific requests on tech tips regarding the Audiotec Fischer DSP PC Toll Software, or anything else related to car audio or sound treatment, please email us with a request. Thank you!

Your questions answered.

Every vehicle and goal set is different. Start with our sound deadening buyer’s guide to understand what each material does and where to use it. If you want a tailored plan, book our sound system design and installation consultation.


To help offset the cost, up to 40% of the consultation fee can be credited toward ResoNix product purchases made within 30 days.

Most people ask this because they are not sure what physically fits. Fitment varies by vehicle, trim, and where you plan to install it. Check available depth carefully and avoid interfering with moving parts, window tracks, airbags, and service access. As a general rule, choose the thickest that comfortably fits the space. See the product page for details.

We are building an ongoing fitment sheet from customer confirmations. If you can share what fit in your vehicle, please let us know to help others.

If an item is on backorder, the estimated restock date appears on its product page and is updated as we get new information.

Domestic orders that include a backordered item will ship in two parts: in‑stock items ship immediately, and the backordered items ship as soon as they arrive. For international orders, we currently ship when all items are in stock.

You will receive an order confirmation by email, then a tracking email once your order ships. If you need an update or anything looks off contact us with your order number.

We recommend high‑quality, proven DSPs matched to your system design and goals. If you want a custom recommendation, book our sound system design and installation consultation.

To help offset the cost, up to 40% of the consultation fee can be credited toward ResoNix product purchases made within 30 days.

Yes. Start with the sound deadening buyer’s guide for material selection and placement, and the sound deadening reference information & guide for deeper technical detail and best practices.

Please open every box and wrapper fully, since small items are sometimes packed inside larger kits for protection. If something still appears missing, reach out with your order number and what you are not seeing.
We will make it right. Contact us.

Yes, we ship worldwide. Available carrier options and rates are shown at checkout based on destination and weight. Transit times depend on the service you choose and customs processing. Express options are typically faster, while economy services take longer.

Full details are here: Returns and refunds policy.

If you need to cancel an order before it ships, contact us as soon as possible. If a return is needed, follow the instructions on that page so we can process it quickly.

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Need further guidance or have questions? See below for more ways to get in contact and view resources.