【HEC HD-Audio USB-DSP.3S｜DSP Amplifier with High-Quality USB Input】

This is a DSP amplifier designed for people who want to enjoy audio from a smartphone, portable player, or PC in higher quality inside the car.

The unit is equipped with a USB mini-B connector for digital audio signal input. From a smartphone, portable player, or PC that supports USB-OTG output, you can input up to a 192kHz / 32bit PCM stereo signal.

If you want to enjoy the music you listen to every day more thoroughly through your car’s audio system, the biggest appeal is that you can input the audio source in digital form. Since compatible devices and connection methods vary depending on the smartphone, player, and PC you use, it’s best to confirm based on your actual system setup.

Also, volume adjustment requires a separately sold remote control, DIRECTOR or URC-3. Depending on your vehicle model and the combination with your existing audio system, the connection method and the operation that’s easiest to use may also differ.

If it were me, I wouldn’t decide based on the product alone—I’d choose by also considering how it will work with your current head unit, speakers, and subwoofer. Even with the same DSP amplifier, the impression you get when using it changes depending on how you connect it and how you tune it for your car. If you’re considering a system that makes use of the USB input, let’s decide on a direction together while checking your vehicle model and current audio configuration.

Main Specifications / Specs

【Basic Information】
Product name: HEC HD-Audio USB-DSP.3S
Type: DSP amplifier

【Digital Input】
Input terminal: USB mini-B
Supported signal: PCM stereo
Supported sampling rate: up to 192kHz
Supported bit depth: up to 32bit
Compatible devices: Smartphones / portable players and PCs that support USB-OTG output

【Volume Adjustment】
Dedicated remote control: Sold separately
Compatible remote controls: DIRECTOR / URC-3