【Toyota Genuine Display Audio-Compatible DSP Amplifier｜DSPA406-TDA】

You want to keep your factory display audio, but you’d like a bit more thickness and spaciousness in the sound. That’s exactly what DSPA406-TDA is for.

This is a vehicle-model-specific 6ch DSP with a built-in 4ch power amplifier, supplied with the Toyota display audio harness. Without drastically changing the factory system, you can fine-tune the sound balance and adjust how the speakers perform to achieve a more natural, easier-to-listen-to sound.

It’s an easy option to consider if you want vocals to sound a little clearer, if you want the overall music to feel more cohesive, or if you’re aiming to upgrade sound quality while keeping the convenience of the factory audio.

Because it also supports Bluetooth 5.0, you can enjoy music from compatible smartphones and other devices.

In addition to the 4ch power amplifier, the DSPA406-TDA includes 6ch RCA outputs, giving your system room to grow. It’s not only suitable for strengthening the front and rear speakers, but it’s also a model that’s easy to plan for combining a subwoofer later—so you can configure it to match your vehicle and budget.

However, even for the same Toyota model, compatibility varies depending on the specifications of the factory audio. It is not compatible with vehicles equipped with factory audio systems such as JBL. Also, installation requires a 28pin-10pin harness.

At our shop, we don’t just recommend adding the product—we guide you to a sensible configuration while confirming your current speakers, how you use the audio in your car, and how far you want to improve the sound in the future. Even with the same DSP amplifier, the final result can change depending on the connection method and the direction of the adjustments. If I were doing it, I would go over which parts are worth the cost together while looking at the actual vehicle.

If you’re considering upgrading the sound quality of Toyota genuine display audio, please contact us with your vehicle model, year, and the factory audio specifications. We’ll confirm the best approach for your car and provide guidance in a form that’s unlikely to change later.

Main Specifications / Specs

【Basic Information】

• Product name: DSPA406-TDA
• Type: 6ch DSP with built-in 4ch power amplifier
• Purpose: Compatible with Toyota genuine display audio
• Bluetooth: Bluetooth 5.0 supported
• Bluetooth supported codecs: aptX HD／aptX／AAC／SBC

【Amplifier Section】

• Rated output: 30W×4ch (4Ω)
• Frequency response: 20Hz～40kHz
• S/N ratio: 105dB
• Recommended fuse capacity: 10A

【Inputs】

• High-level input: 4 channels
• RCA input: 4 channels
• Input sensitivity: High-level max 10V / Low-level (RCA) max 2.8V
• Input impedance: 6Ω
• AUX input: None

【Outputs】

• Speaker output: 4 channels
• RCA output: 6 channels
• Remote controller: Supported (sold separately)

【Installation / Compatibility】

• Comes with harness for Toyota display audio
• Harness: 28pin-10pin
• Harness length: Approx. 2m
• Compatible with: Factory display audio systems
• Not compatible with: Vehicles equipped with factory audio systems such as JBL

【Main Unit Dimensions】

• Width: 180mm
• Depth: 129mm
• Height: 42mm

※Before installation, please confirm that the 28pin-10pin harness is installed on the vehicle side.
※Depending on the vehicle’s factory audio specifications, prior compatibility confirmation may be required.

Shop Owner Kojima (Komizo)