
Best selling Car hi-fi amplifiers
Here's a ranking of the best products in this category. To give you a quick overview, we've also added some key information about the products.
1. Vibe Powerbox 800 Watt Micro Bass Amplifier
Powerbox Micro Bass Amplifier with max. 800 Watts
Small footprint, big impact! The latest amplifier technology from Vibe allows us to deliver high power in an incredibly compact space. Our mono Powerbox micro amplifiers are small but powerful, with up to 400 Watts. The compact size enables easy installation. An ISOAWK kit (sold separately) is available for the bass amplifier to make it compatible with an ISO T-harness, which connects to the existing stereo harness in the vehicle.
Technical specifications:
170 Watts at 4 Ohms
400 Watts at 1 Ohm
800 Watts max. power
Dimensions: 37 x 157 x 82 mm.

2. Pioneer GM-D8704
The Pioneer GM-D8704 is a powerful 4-channel Class D amplifier designed for use in vehicles. With a maximum output power of 1,200 W, this amplifier delivers impressive audio quality and volume, significantly enhancing the sound experience in the car. Its compact design allows for easy installation, while the advanced Class D technology ensures high efficiency. The GM-D8704 features variable high-pass and low-pass filters that enable flexible adjustment of the frequency response, providing personalized sound tuning. Additionally, it can connect up to four subwoofers, further amplifying the audio output. This amplifier is ideal for audiophiles who value quality and performance.
- Speaker input sensor allows for easy connection with OEM devices without an adapter
- Variable low-pass filter for flexible adjustment of the audio system
- Variable high-pass filter for personalized sound tuning
- Connection for multiple devices, including up to 4 subwoofers
- Excellent signal-to-noise ratio of over 95 dB for clear sound.

3. Pioneer Bridgeable 4-channel
Indulge your desire for more power. With Pioneer’s bridgeable amplifiers, you get pure, clean, distortion-free power and outstanding sound.
The GM-A6704 will make your system shine while keeping cool. A technical marvel that will impress you to the core.

4. Pioneer Gm-D1004
An amplifier shouldn't take up much space, especially in a car. That's why this compact yet powerful Class-D amplifier could be just right for you. The GM-D1004 is a compact amplifier that can be easily installed in the dashboard or center console - the cables are already included. Its Protection Control System prevents overloading of the vehicle's electrical system, allowing the GM-D1004 to be easily connected to existing wiring. Additionally, the system prevents overheating and ensures stable operation. The amplifier features a large-capacity capacitor that provides stable voltage, resulting in clear, powerful sound even at higher volumes. It delivers no less than 4 x 100 watts in very compact dimensions. The GM-D1004 detects the input signal and automatically adjusts to the correct sensitivity, whether it's a RCA or speaker connection. Furthermore, the amplifier automatically turns on and off when connected to the speaker output of the radio. Reinforcements in the amplifier's base dampen the impact of vehicle vibrations. Thanks to this total vibration control, you can enjoy high-resolution audio files in your vehicle.

5. Crunch GPX4 channel power amplifier
Both GPX models convince with an almost unbeatable price-performance ratio and have what it takes to become a bestseller. The power amplifiers of the GPX series convince with a solid quality and thoughtful design and stand for lasting sound fun in the car. With price-optimized performance and easy-to-use features, the GPX amplifiers are the perfect introduction for car audio novices.

6. Pioneer GM-D9701
Pioneer GM-D9701 subwoofer power amplifier
Features:
- Speaker input sensor: Easily connect your existing OEM device without additional adapters.
- Variable TPF: Adjust the low-pass filter frequency for greater audio system flexibility.
- Multiple device connection: Connect up to 4 subwoofers for more powerful audio output.
- Class D: Enjoy the premium sound and high volumes of a versatile system that's half the size of other devices.
Technical data:
- Variable TPF
- Class D
- Channels: 1
- RCA connections
- Speaker inputs: Block-type
- TPF
- Maximum input power: 1 x 1000W (4Ω) / 1 x 1600W (2Ω) / 2400W (1Ω)
- Continuous output power (RMS): 1 x 500W RMS (4Ω) / 1 x 800W RMS (2Ω) / 1 x 1200W RMS (1Ω)
- Frequency response: 10 Hz - 240 Hz
- Input level control: RCA (0.2V - 6.5V) / SP (0.8V - 16V)
- Distortion 100dB
- Housing dimensions (W x H x D): 302 x 60 x 215 mm
- Bass control: Remote control
- Bass remote control
- Crossover frequency: 40 - 500Hz (-12 dB/oct)
- Mono / 1-channel
- Connections: Connection for multiple devices.

7. Alpine BBX-F1200 4-channel amplifier
Designed for Europe. With these BBX amplifiers, you get the familiar power performance from Alpine. They also fit seamlessly into almost any system. The amplifier delivers enormous power and exceptionally good characteristics for its class. Perfectly suited for expanding your sound system on a limited budget. High-pass and low-pass filters. With these two filters, you can adjust the crossover frequencies for the high, mid, and low bass ranges to match your speakers, achieving optimal efficiency.

8. Hifonics Pluto I
The Hifonics PLUTO I is a compact Class D digital mono micro amplifier designed for impressive audio performance in vehicles. With an RMS power output of 225 W at 4 ohms and 375 W at 2 ohms, this amplifier delivers powerful sound reproduction that satisfies even the most demanding audiophiles. The innovative Class D technology not only ensures a high efficiency of up to 90% but also provides a remarkable enhancement in audio performance. The PLUTO I is particularly small and can be easily integrated into modern vehicles without the need for additional adapters. This is supported by the integrated high-level inputs with advanced EPS technology and an automatic turn-on feature that ensures seamless adaptation to the vehicle's factory configuration. The amplifier is also equipped with an adjustable low-pass filter, allowing frequency control from 50 to 250 Hz to further optimize the sound.
- High-level inputs with EPS technology for easy integration into modern vehicles
- Automatic turn-on feature to ensure functionality
- Adjustable low-pass filter from 50 to 250 Hz for optimized sound reproduction
- Compact design with high efficiency of up to 90%.

9. Focal Impulse 4.320
Bring a breath of fresh air to your head unit. Headphone amplifiers (whether OEM or aftermarket) quickly show their limits in terms of power and dynamics. At high volume, they quickly saturate and spoil the listening experience. To compensate for this and get the best out of your speaker drivers, Impulse 4.320 is the good solution. It gets your system going without having to engage in a difficult installation process. Semi "Plug&Play", Impulse 4.320 is a digital 4-channel miniature amplifier with 4 x 55 watts of power. Impulse 4.320 is the good match for your Focal Integration speakers.

10. Vibe Powerbox Plug and Play
Direct plug-and-play amplifier for your BMW, providing everything you need to install an amplifier and keep your factory radio, no loss of warranty, no loss of function, just extra volume and improved sound quality.
Suitable for the following vehicles with 40 PIN Quadlock radio connector:
BMW 1 Series from 2009 to 2018
BMW 3 Series from 2009 to 2018
BMW 5 Series from 2009 to 2018
BMW 6 Series from 2008 to 2018
BMW 7 Series from 2009 to 2018
BMW X1 from 2009 to 2018
BMW X3 from 2009 to 2018
BMW X5 from 2009 to 2018
BMW X6 from 2008 to 2018
BMW Z4 from 2009 until 2018
Technical data:
4x65 watts into 4 ohms
520 Watt Max. Power output
Dimensions: 37x157x82mm.
