1. Audio Amplifiers for In-Car Entertainment Offers
  2. sku: 6427015460929623
  3. BOSE TK7866A20

BOSE TK7866A20 Stereo Radio Audio Amplifier

fits model: Cx-9. make: Mazda. year: 2016–2018.

Tk7866a20 Bose 2016-2018 Mazda Cx-9 Stereo Radio Audio System Amplifier Oem

( Brand: Bose ), ( Manufacturer Part Number: TK7866A20 ), ( Part Type: Stereo Radio Amplifier ), ( Oe/oem Part Number: Stereo Audio Radio, Amplifier, Control Unit, Complete Sound ), ( Color: Silver ), ( Features: Bass Boost ), ( Country Of Origin: Mexico )

Review BOSE Mazda Stereo Radio Audio System Amplifier Oem fits CX-9 2016–2018

The Bose TK7866A20 is a high-performance audio amplifier specifically designed for select Mazda CX-9 models from the years 2016 to 2018. This amplifier is an upgrade from the original factory system, delivering superior sound quality and enhanced listening experience.

The TK7866A20 is a 5-channel class D digital amplifier, which is known for its efficiency and ability to produce high power with minimal heat generation. Each channel is capable of delivering up to 75 watts RMS (Root Mean Square) at 4 ohms, ensuring consistent and powerful sound performance for all five channels front left and right, center channel, and two rear channels.

One of the standout features of this amplifier is its advanced Digital Signal Processing (DSP) technology. This technology allows for customized equalization, time alignment, and dynamic compression settings, ensuring precise sound reproduction and optimal performance for various music genres.

Additionally, the TK7866A20 includes Bose's proprietary ToneControl technology. This innovative feature allows you to adjust the bass and treble levels to suit your personal preferences, providing a more customized listening experience.

The amplifier's compact size (12-1/2 inches W x 2-1/2 inches H x 7-1/2 inches D) makes it an ideal fit for the Mazda CX-9's limited space under the dashboard. Its sleek design ensures that it blends seamlessly with the vehicle's interior, maintaining a clean and aesthetically pleasing look.

The Bose TK7866A20 is designed to work seamlessly with the Mazda CX-9's factory wiring harness, making the installation process simple and straightforward. It is also compatible with the Mazda's factory steering wheel audio controls, allowing you to maintain full control over your music without having to take your hands off the wheel.

By upgrading your Mazda CX-9's factory stereo system with the Bose TK7866A20 audio amplifier, you'll notice an immediate improvement in sound quality. The amplifier delivers clearer, more defined sound, with enhanced bass response and improved overall dynamic range. Whether you're listening to your favorite music, podcasts, or navigating with voice commands, the TK7866A20 will elevate your in-car listening experience.

Bose TK7866A20 Stereo Radio Amplifier for Mazda CX-9: A Detailed Analysis

The Bose TK7866A20 is a factory-installed stereo radio amplifier designed specifically for Mazda CX-9 models produced between 2016 and 2018. This amplifier is an upgrade from the standard factory audio system, offering improved sound quality. In this analysis, we will discuss the key features, pros, cons, and a concluding recommendation.

Features:

1. Four-channel design with a maximum power output of 22 watts RMS per channel at 4 ohms.

2. Integrated high-pass filters for front and rear speakers.

3. Advanced signal processing technology for improved sound clarity.

4. Compatibility with the Mazda Infotainment System.

Pros:

1. Superior sound quality: The Bose TK7866A20 amplifier delivers cleaner, clearer, and more powerful sound than the standard factory system.

2. Easy installation: Since it is a factory-installed unit, there is no need for custom installation or modifications.

3. Seamless integration: The amplifier works flawlessly with the Mazda Infotainment System, allowing for convenient control of audio settings.

4. Enhanced bass response: The integrated high-pass filters help improve the overall bass performance of the speakers.

Cons:

1. Limited power output: Compared to aftermarket amplifiers, the Bose TK7866A20 has a relatively low power output, which may not be sufficient for some audiophiles seeking extreme sound levels.

2. Cost: As a factory-installed upgrade, the Bose TK7866A20 is more expensive than many aftermarket alternatives.

3. No equalizer settings: The amplifier does not offer any adjustable equalizer settings, limiting the user's ability to fine-tune the sound to their preferences.

Conclusion:

The Bose TK7866A20 stereo radio amplifier is an excellent choice for Mazda CX-9 owners who are looking for a factory-installed upgrade to their audio system. It delivers superior sound quality, easy installation, and seamless integration with the Mazda Infotainment System. However, it may not be the best option for those seeking extreme power output or equalizer settings. If you are satisfied with the sound quality offered by the Bose TK7866A20 and are willing to pay a premium for a factory-installed upgrade, then this amplifier is an excellent choice for your Mazda CX-9.

Details:

Guaranteed factory fit and performance. This is an original OEM unit, fully tested and confirmed to be in proper working condition.: Genuine Mazda Bose stereo amplifier removed from a 2016 2018 CX 9 equipped with the factory premium sound system. Reliable long term operation.

2017 Mazda CX 9. Perfect for direct replacement or restoration. Condition: Used, clean, and fully functional. Normal signs of use from a donor vehicle.

OEM Bose Audio Amplifier Mazda CX 9, Part Number: TK78 66 A20 also seen as TK7866A20. Mounting hardware included only if shown in photos. Ideal replacement for vehicles with audio distortion, no sound, or amplifier failure. No broken tabs or damaged connectors.

No programming required. Compatibility: 2016 Mazda CX 9. OEM part not aftermarket or refurbished.

part #: tk7866a20 prices

  • $110.00-$139.90

specifications ampsguru:

  • for models: Cx-9
  • for makes: Mazda
  • for years: 2016-2018
  • brand: Bose
  • mpn: Tk7866a20
  • part type: Stereo Radio Amplifier
  • oe/oem part number: Stereo Audio Radio, Amplifier, Control Unit, Complete Sound
  • color: Silver
  • features: Bass Boost
  • country of origin: Mexico

shipping ampsguru:

  • cost: $0.00
  • transit: 5-13 Days
  • service: USPS First Class, FedEx Express Saver
  • type: Fixed
  • carrier: USPS, FedEx
  • class: Standard, Expedited

general ampsguru:

  • condition: Used
  • In-Car Technology, GPS Security > In-Car Entertainment > Amplifiers

returns ampsguru:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Buyer

seller ampsguru:

  • city: Hackensack, New Jersey
  • # reviews: 1936
  • rating: 99.8%

payments ampsguru:

  • other
  • credit card: Diners-club
  • wallet: Apple-pay

offer ampsguru:

  • quantity: 1
  • started: December 26, 2025
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
for models: cx-9, for makes: mazda, for years: 2016-2018, part type: stereo radio amplifier, oe/oem part number: stereo audio radio, amplifier, control unit, complete sound, features: bass boost, country of origin: mexico,
category: auto parts > in-car technology, gps security > in-car entertainment > amplifiers, color: silver, sku: 6427015460929623,

Bose TK7866A20 Is Similar To:

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5 offers $110.00–$139.90 USD
  • Offer #1: $110.00 price + $0.00 shipping estimate = $110.00* total. BUYING THEM BY YEAR, MAKE & MODEL ALONE CANNOT ENSURE COMPATIBILITY WITH YOUR VEHICLE. THESE UNITS ARE BOUGHT BY PART NUMBER ONLY.FREE SHIPPING
  • Offer #2: $112.00 price + $0.00 shipping estimate = $112.00* total.FREE SHIPPING
  • Offer #3: $139.90 price + $0.00 shipping estimate = $139.90* total. OEM Bose Audio Amplifier Mazda CX 9. Part Number:TK78 66 A20 (also seen as ).FREE SHIPPING
  • Offer #4: $195.40 price + $18.09 shipping estimate = $213.49* total.+$18.09 shipping
  • Offer #5: $100.00 price + $0.00 shipping estimate = $100.00* total. Part number should match.FREE SHIPPING

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