【HEC HD-Audio USB Card | High-Resolution USB Interface for DSP Amps】

The HEC HD-Audio USB Card is designed for anyone who wants to input audio from a smartphone or PC into an in-car DSP amplifier in digital form.

It can be connected directly to smartphones and portable players that support USB-OTG, and supports PCM stereo signals up to a maximum of 192 kHz / 32-bit. Instead of converting the audio source to analog and then inputting it, the feature of this card is that it sends the digital signal to the DSP side so you can tune the sound with the in-car system.

For those who want to enjoy high-resolution audio sources on their smartphone, or who feel that the sound source environment is lacking with factory input alone, this is an option that expands the capabilities of a DSP amplifier. Even with your usual music, you can enjoy more subtle differences in sound by combining it with your in-car speakers and subwoofer and by adjusting the DSP.

However, sound quality is not determined just by adding a USB card. You need to consider the input method and how to adjust the volume based on the factory audio on the vehicle side and the DSP amplifier configuration, the smartphone you use, and the audio sources you typically listen to. If I were doing it, I would decide the combination only after checking the actual equipment you will use and the in-car system—rather than choosing based on the card alone.

To adjust the volume, you will need the separately sold DIRECTOR or URC-3. We will guide you while looking at your actual vehicle and usage environment, including whether it can be added to your current system and whether it can be set up with easy-to-use operation. If you’re going to enjoy high-resolution audio, you’ll want us to consider not only the installation, but also usability after installation and how well the sound comes together.

Main Specifications / Specs

【Basic Information】
Product name: HEC HD-Audio USB Card
Type: USB interface card for DSP amplifiers

【Connection】
Terminal: USB mini-B
Connectable devices: USB-OTG-compatible smartphones, portable players, PCs, etc.

【Supported Audio Sources】
Signal format: PCM stereo
Support: up to 192 kHz / 32-bit

【Volume Adjustment】
Separately sold supported devices: DIRECTOR / URC-3

※ Depending on the DSP amplifier and the connected devices on the vehicle side, the configurations and operating methods that can be used may vary.
※ For installation and adding the system, we will provide guidance after confirming the actual vehicle and the current audio configuration.

Shop Owner　Komizo (KOMIZO)