
( Brand: Soundstream ), ( Model: REFERENCE 644S ), ( Part Type: Amplifier ), ( Rms Power: 640w )
The SoundStream Amplifier 640 is a powerhouse of sound, delivering an impressive 1990 watts of total power across its six channels. This amplifier is designed for audiophiles who demand the best in sound quality and power.
The 640 channel amplifier features six independent, fully-adjustable channels, each capable of delivering up to 331.67 watts RMS. This means each speaker in a six-speaker system will receive a robust and consistent power output, ensuring crystal-clear sound and deep, resonant bass.
The SoundStream Amplifier 640 is equipped with a Class D digital amplifier design, which is known for its efficiency and high power output. This technology also results in a lighter weight and lower heat output compared to traditional Class AB or Class A amplifiers, making it easier to integrate into a variety of vehicle installations.
In addition to its impressive power output, the 640 amplifier also boasts a host of advanced features. These include a high-pass crossover and bass boost on each channel, allowing you to fine-tune your sound to your exact preferences. It also features an automatic turn-on feature, which activates the amplifier when it detects a signal from your audio source.
The SoundStream Amplifier 640 is built to last, with a rugged exterior and high-quality components. It is also compatible with a wide range of audio sources, including factory radios, aftermarket head units, and even smartphone audio outputs, making it a versatile addition to any vehicle audio system.
In summary, the SoundStream Amplifier 640 is a powerful and versatile amplifier that delivers outstanding sound quality and performance. With its six independent channels, high-pass crossover, bass boost, and automatic turn-on feature, it offers a level of control and customization that is second to none. Whether you're a music lover, a car enthusiast, or a professional installer, the SoundStream Amplifier 640 is an investment that will pay dividends in the form of superior sound quality and enjoyment.
Pros of Buying SoundStream Amplifier 640 (640 Watts Channel, 644S):1. High Power Output: With a total power output of 1990 watts, this amplifier can deliver a significant amount of sound, making it ideal for those who enjoy high-volume music.
2. Six-Channel Design: The six-channel design allows for the connection of multiple speakers, making it suitable for car audio systems with multiple speakers.
3. High-Quality Construction: The SoundStream 640 is built with heavy-duty materials, ensuring durability and long-lasting performance.
4. Adjustable Bass and Treble Controls: The amplifier features adjustable bass and treble controls, allowing users to customize the sound to their personal preferences.
5. Remote Control: The amplifier comes with a remote control, making it convenient to adjust the volume and settings without having to manually access the amplifier.
Cons of Buying SoundStream Amplifier 640 (640 Watts Channel, 644S):1. High Power Consumption: Due to its high power output, the SoundStream 640 consumes a significant amount of power, which may result in increased energy bills.
2. Size and Weight: The amplifier is large and heavy, which may make it difficult to install in some vehicles.
3. Price: The SoundStream 640 is relatively expensive compared to other amplifiers with similar power output.
4. Heat Generation: The amplifier generates a significant amount of heat, which may require additional cooling measures to prevent damage.
Conclusion:The SoundStream Amplifier 640 is a high-power, six-channel amplifier that delivers excellent sound quality. Its durability, adjustable bass and treble controls, and convenient remote control make it an attractive option for those who demand high-performance audio. However, its high power consumption, size and weight, and price may be deterrents for some potential buyers. Ultimately, the decision to purchase this amplifier depends on the individual's specific needs and budget.
Recommendation:If you are looking for a powerful amplifier that can deliver clear, high-quality sound, the SoundStream Amplifier 640 is a solid choice. However, it is important to consider the cons mentioned above and ensure that the amplifier is compatible with your vehicle's electrical system and audio system. Additionally, investing in proper cooling measures may be necessary to ensure the longevity of the amplifier. Overall, if you are willing to pay the premium price, the SoundStream Amplifier 640 is a reliable and high-performance option for your car audio system.
Selling my used 1990Soundstream reference 644S 4 channel amp. The inside of the looks almost brand new. Here are the specs 75w x 4 into 4 ohm 150w x 4 into 2 ohm 160w x 4 into 1 ohm 160w x 4 into 1/2 ohm or 150w x 2 into 4 ohm 300w x 2 into 2 ohm 320w x 2 into 1 ohm 320w x 2 into 1/2 ohm low pass crossover Hz high pass crossover 60 240hz 200mv 2v or 500mv 5v input sensitivity signal to noise 100db Thad 90 absorptive reference 644S Soundstream.
The only reason I am selling it is because I can't put it in the car I have now. Thetas been thoroughly checked and tested and works great. What you see in the pics is what you get. Thetas some scratches and there are some holes that were drilled in one end because a fan was mounted to the for extra cooling.