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HDSP-V  Support Page

 Congratulations on your purchase of your new Zapco HDSP-V Series Digital Signal Processor. This series includes the both 16-Channel and 8-Channel processors. 16-Channel units operating at 96 kHz and 8-channel units operating at 192 kHz. While all units share the same processing functions and features, the arrangement options of digital and analog inputs and outputs (and processing speed) allow you to choose exactly the setup you need. 

Your HDSP processor is the first step in Zapco’s quest to produce the perfect signal processor. The HDSP’s modular design is critical to that quest, allowing us to continue our research and development, while providing you the knowledge that your HDSP can be easily upgraded as new advances are made. For example, Zapco is already working on a unique auto-tuning system that considers everything from phase to delay to equalization to provide an optimum listening experience to everyone in the room (or car), regardless of their seating position. All you’ll need is a software update and a microphone package.

The HDSP-V Series is an evolving product and any number of features will be added as new technologies become available. You will want to keep a regular eye out for updates at this page to keep your HDSP current. 

Digital Control Program


The HDSP-V Zapco processors are controlled by a PC using the Zapco Digital Control Program. The program is designed to work on all Windows systems from XP to W-10. Download the program and put it in a folder, or leave it in downloads, navigate to Setup.exe and click to begin setup. Follow the instructions for setup.

Current Version


Release Date: January 27, 2022

Previous DCP Version

DCP Software v.2.9.3 rc4 (Windows PC)   DCP 2.9.3 rc4 Changelog

Release Date: September 19, 2020

> DCP Software v.2.9.2 (Windows PC)   > DCP 2.9.2 Changelog

Release Date: September 18, 2019

DCP Software v.2.9.2 rc3 (Windows PC)   > DCP 2.9.2 rc3 Changelog

Beta test version. Release Date: July 4, 2019

> DCP Software v.2.9.1 (Windows PC)   > DCP 2.9.1 Changelog

DCP Software v.2.9.0 (Windows PC)

Beta test version working only with W-10. Release Date: Feb 5, 2019



To update the firmware you need the 1.2.0 ACPUpgrade software tool, here included. Upgrading the Firmware must be done in the correct order to be successful, please refer to the Instructions file. 

We recommend that you always install the latest firmware version.

Current Version



Release Date: December 15, 2020 (adds support for ESS 9038 DAC)

Previous Firmware Version

Firmware update HDSP-V 16-ch. 1.0.10 rc4   > Firmware update HDSP-V 8-ch. 1.0.10 rc4

Release Date: September 18, 2019

Firmware update HDSP-V 16-ch. 1.0.9   > Firmware update HDSP-V 8-ch. 1.0.9

Firmware update HDSP-V 16-ch. 1.0.8   > Firmware update HDSP-V 8-ch. 1.0.8

Release Date: Aug 17, 2019

Firmware update 1.0.7

Release Date: Feb 21, 2019

User's Manual, Troubleshooting and Quick Guides


Before operating the unit, please download and read this owner's manual thoroughly, and keep it in a safe place for future reference.


Release Date: November 8, 2019


Here you can find some quick guides and suggestions to solve possible problems during the installation or use of your HDSP.

> Warranty Advice

Formatting Larger USB Thumb Drives/Sticks

Connecting the HDSP through Wi-Fi

Connecting the HDSP to the PC

> Wiring to be Noise Free

> Upgrading ESS 9038 DAC (only for Authorized Zapco Distributors & Dealers and Zapco Service Center)

> Setting the Inputs

> Connecting the HD BT Module

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