【4ch DSP Amplifier AF C4.10 bit | High-Performance Amplifier that Refines Sound Using OEM Audio】

You want a bit more body and clarity in the sound of your OEM audio. You’ve swapped the speakers, but you’d like to fine-tune the overall balance throughout the cabin.

That’s where the 4ch power amplifier with built-in DSP, “AF C4.10 bit” comes in.

In addition to the ample output provided by a 4ch amplifier, the DSP lets you precisely adjust each speaker’s volume, frequency range, time alignment (phase delay), and more. Since you can refine the in-cabin presentation—such as vocal positioning and overall cohesion—based on the character of the OEM system, you can also tackle areas that speaker replacement alone couldn’t fully fix.

Wide Adjustment Range in a Compact Body

AF C4.10 bit is a Class D amplifier with rated output of 90W×4 at 4Ω and 150W×4 at 2Ω. While designed to be compact and easy to install even in limited cabin space, it ensures enough power to drive your speakers properly.

In addition, the DSP supports output control up to a maximum of 10ch. You can adjust the sound connection between components such as front speakers, rear speakers, and a subwoofer to match your system configuration.

It also supports 24bit / 96kHz signal processing and a playback frequency range up to 40kHz, making it a model that’s easy to consider for anyone who wants to enjoy hi-res audio sources.

Works with OEM Systems Too

With OEM navigation systems and OEM audio, there are quite a few vehicles where the head unit can’t be replaced easily. With AF C4.10 bit, you can also consider adding an amplifier and DSP while keeping the OEM system, then adjusting the in-cabin sound to your preferences.

Along with high-efficiency operation thanks to the Class D design, it also supports Auto Remote ON/OFF functionality (ART), which makes it easier to combine with an OEM system.

However, a DSP amplifier isn’t a product that produces the exact same sound just by installing it. Depending on the OEM system specifications, speaker configuration, whether or not you have a subwoofer, and how things sound in your specific cabin, the required settings and combinations will differ.

At LOGON, instead of deciding on a product first, we first confirm your current system, the music you usually listen to, and your sound preferences—then we work together to整理 where investing money is likely to produce the most noticeable effect. From wiring handling and installation methods to post-installation tuning, we aim to create a condition where you can enjoy listening comfortably every day.

If you’d like to refine your OEM audio one more step, or if you want to review your entire system along with a speaker upgrade, please tell us your vehicle model and current configuration. We won’t push you into an unnecessarily expensive setup—we’ll think together about the best approach for your current car.

Main Specifications / Specs

【Basic Information】
Product name: AF C4.10 bit
Type: 4ch power amplifier with built-in DSP
Class: Class D

【Amplifier Output】
Rated output: 4×90W (4Ω)
Rated output: 4×150W (2Ω)
Maximum number of output channels: 10ch (DSP control)

【Signal Processing / Playback Performance】
Signal processing: 24bit / 96kHz
Playback frequency range: up to 40kHz

【Power】
Operating power supply voltage: 6.5–17.5V
Fuse: 30A
Idling current: 1.04A
Standby current: 0.9mA

【Remote Functions】
Remote input: 4–15VDC
Remote output: up to 150mA
Auto Remote ON/OFF function (ART): Supported