HB 410 ll 8A｜10ch DSP Amplifier with Built-in Music Player

You want to fine-tune the sound of the factory audio a bit more. With speaker replacement alone, it’s often difficult to lock in the soundstage and balance. If that sounds like you, consider the HB 410 ll 8A.

This DSP amplifier integrates a music player, a 10-channel DSP, and an 8-channel power amplifier in one unit, allowing you to handle everything—from music playback, to adjusting sound to suit the vehicle, to outputting to each speaker. It’s designed to make it easier to build an in-car audio system without adding multiple external devices.

Tune the sound together to suit your car

In a car, the distance from the driver’s seat and passenger’s seat to the speakers differs, so with the factory setup you may find the sound placement and left-right balance to be off.

The HB 410 ll 8A supports level adjustment for each channel, time alignment, crossover settings, and more. It lets you make detailed adjustments while checking the vehicle’s conditions—for issues such as vocals sounding like they’re leaning to one side, low and mid/high frequencies not blending well, or becoming fatigued when you turn the volume up.

Because it also supports 10-channel line outputs, it’s a configuration that’s easy to use for those planning future system upgrades—such as front/rear speakers and a subwoofer.

Simple music playback with just one unit

The main unit has a built-in music player and can play audio files such as MP3, FLAC, and WAV. Since it supports digital input via USB-C as well as Bluetooth 5.1 streaming, you can switch between input methods to match how you usually listen to music.

If you want to develop your system while making use of the sound from the factory head unit, the fact that it supports both RCA input and high-level input is also convenient. Because the connection method and adjustment content can vary depending on the vehicle model and the factory audio specifications, you’ll need to check the existing setup on the vehicle and determine the configuration accordingly.

Even with the same equipment, installation and tuning change the result

A DSP amplifier is not a device that automatically produces great sound just by being installed. It’s important to configure it while considering the combination with the speakers, the state of the input signal, the role of each channel, and how the sound is heard inside the vehicle.

At our shop, we confirm the vehicle model and factory system, the music you normally listen to, and your sound preferences—then organize the required number of channels and the connection method. We also want to plan the wiring processing and installation method so that it won’t become inconvenient to use later.

If I were choosing, I wouldn’t decide solely based on the standalone specifications of the HB 410 ll 8A. I’d first整理 and clarify how much you want to change the sound from your current system before selecting it. Even if you plan to replace speakers or add a subwoofer, looking at the overall balance from the start will make it harder to change the configuration later.

If you want to keep the usability of the factory system, but make the sound more to your liking, let’s decide the direction together while we hear your vehicle specifications and your preferences.

Main specifications

【Basic Information】
・Product name: HB 410 ll 8A
・Type: 10ch DSP amplifier with built-in music player
・DSP: 32bit audio signal processor
・Operating sample rate: 48kHz / 24bit

【Amplifier Section】
・Output power: RMS 23W × 8ch
・Output power: MAX 70W × 8ch
・Compatible load: 4Ω stereo
・Damping factor: 100 or more
・Frequency response: 10Hz–40kHz (+0/-1dB)
・Harmonic distortion: 0.04%
・S/N ratio: 100dB or more

【Inputs】
・RCA external input: 2ch
・High-level input: 4ch speaker input
・RCA input sensitivity: 1V–6V
・High-level input sensitivity: 4V–12V
・CH5–CH8 input sensitivity: 4V–26V
・RCA input impedance: 20kΩ
・High-level input impedance: 22Ω
・Digital input: OTG (USB-C)
・Bluetooth input: 5.1 streaming
・Auto power-on function: Supported (when using high-level input)

【Outputs / Connections】
・DSP output: 10ch LINE OUT
・RCA output voltage: 3V
・CH9 / CH10 output voltage: 9V
・Remote terminals: 1 remote IN, 1 remote OUT
・Remote output current: 500mA (max)

【Music Player】
・Supported file formats: MP2 / MP3 / MP4, WMA, APE, FLAC, AAC, M4A, WAV, AIF, AIFC

【DSP Adjustments】
・Output level: 0dB to -60dB
・Level adjustment step: 1dB / step
・Time alignment step: 0.021ms / step
・A/D converter: 32bit AK7735EQ (Asahi Kasei)
・D/A converter: 32bit AK7735EQ (Asahi Kasei)

【Power / Dimensions】
・Operating power supply voltage: 10.0V–16.0V
・Idle current: 0.8A or less
・Fuse: ATO 15A × 1 (between connector cable lines)
・Dimensions: 190 (W) × 45.5 (H) × 126 (D) mm
・Weight: 1.0kg

【Included Accessories】
・USB cable 1.8m
・20-pin power & speaker connection cable
・Bluetooth module cable

For detailed installation instructions, please be sure to consult the installer/shop.