【AF M8.14bit｜Refine OEM audio in detail with an 8ch DSP amplifier】

You want the sound of your OEM audio system to have a bit more thickness and cohesion. Even after replacing the speakers, when you listen inside the car, the sound positioning and balance still bother you.

That’s where AF M8.14bit comes in.

This is a model that combines a DSP with an 8ch amplifier, letting you finely adjust the balance of the audio sent to each speaker to match the interior of your vehicle. It’s not just about boosting amplifier output—because it can also correct sound imaging and the way speakers “connect” with each other, you can aim for a finish where the positions of vocals and instruments feel natural when you listen to your usual music from the driver’s seat.

Flexible system configurations with an 8ch amplifier + DSP

AF M8.14bit supports output of 90W per channel at 4Ω and 140W per channel at 2Ω. While driving your speakers firmly, you can adjust the sound to suit the acoustic environment inside the car.

In addition, since it can control up to 14 output channels, it’s well suited to systems that combine front speakers, rear speakers, subwoofers, and more.

Operating at 24bit/96kHz and supporting an audio bandwidth up to 40kHz, it preserves fine details contained in the source and shapes them into a natural balance that is less fatiguing to listen to even over long periods.

To get the most out of the product, installation and adjustment are essential

A DSP amplifier is not a product whose sound is complete just by installing the unit.

The required adjustments vary depending on how you connect it to the OEM audio, the speaker configuration, the size of the cabin and seat position, and the audio sources you use. If wiring or installation methods aren’t appropriate, you may not be able to fully leverage the performance you paid for.

At LOGON, after confirming your vehicle model, your current system, the music you usually listen to, and your preferences regarding sound, we think together about how far you should expand the system.

If it were me, I wouldn’t decide on the DSP amplifier alone first—I would determine the configuration by also considering how you want to combine speakers and a subwoofer in the future. That makes it easier to reduce the chances that you’ll need to redo things later.

This is a DSP amplifier worth considering for those who want to make OEM audio sound a little more enjoyable and easier to listen to, those who want to properly dial in the sound after replacing speakers, and those who are thinking about upgrading the system in the future. Since the recommendations can vary depending on your vehicle model and current system, let’s plan a sensible combination while checking the actual car.

Main specifications

【Basic information】

• Product name: AF M8.14bit
• Type: 8ch DSP amplifier
• Channel count: 8ch
• Amplifier class: D-Class

【Amplifier output】

• Output: 8×90W (4Ω)
• Output: 8×140W (2Ω)
• Maximum controllable output channels: 14ch

【DSP / audio performance】

• Operating bit / sampling rate: 24bit / 96kHz
• Supported audio bandwidth: up to 40kHz

【Power supply / current consumption】

• Power supply voltage / fuse: 11–15VDC / 30A×2
• Operating power supply voltage: 6.5–17.5VDC
• Idle current: 1.5A
• Standby current consumption: 1.7mA
• Power consumption: 14.4VDC, 2Ω, maximum musical power 55A
• Rated power efficiency: 82.0%

【Remote】

• Remote IN: 4–15VDC (1mA)
• Remote OUT: 6.5–15VDC (150mA)
• ART Auto Remote Turn On/Off: 1.5VDC