4 Channel Bluetooth Amplifier, 50W x 4 Audio Power Amp, Hi-Fi Home Stereo Speaker Receiver [Douk Audio M4]

From the brand

Estabilshed in 2013, Douk Audio & Nobsound is created by a group of enthusiastic music fans and professional audio experts.

We design and make various audio equipments including amplifier, phono preamp, headphone amp, DAC, audio switch and so on.

Our aim is “Make Hi-Fi Affordable” !

Bluetooth Amplifier

Various Audio Products

Supporting wired 2 groups of stereo RCA and wireless Bluetooth 5.0 input, compatible with most common audio device such as phones, computers, TVs, MP3, TV, CD players etc. With U-disk input, it can be used as a digital music player, supporting MP3, WAV, APE, FLAC and WMA lossless formats.
With 4 groups of speaker sockets output, they can output at the same time and each channel with independent volume control. Its max output power can reach 50W×4, and equipped with high-quality 24V/4.5A power supply, enough to drive most home speakers.
Reasonable circuit layout, concise wiring and high-quality components to ensure HiFi clear sound and long time stable work. Separate design of small and large signal circuit for better circuit protection. Bluetooth 5.0 version with high-gain antenna, ensure more stable and faster transmission.
Propersize with exquisite appearance, aluminum alloy case is CNC machined and with anodizing process, more fashionable and durable, very suitable for home, office and desktop audio system use.

Benefits of quality speakers

With quality speakers, you can expect a much better listening experience. One of the main advantages is that they provide clearer and more accurate sound, allowing you to hear all the details in your favorite music or movies. This is because these speakers are designed to reproduce a wider and more accurate frequency range, which means you can hear the lowest and highest sounds more clearly.

In addition, quality speakers typically have a more powerful and immersive sound, allowing you to fully immerse yourself in the listening experience. This is especially useful when watching movies, as it allows you to feel as if you are in the scene itself.

Another advantage of quality speakers is their durable and sturdy construction. Quality speakers are made from high-quality materials and are designed to withstand prolonged use. This means that you can enjoy high-quality sound for many years without having to worry about the need to replace them.

In short, quality speakers offer a much better listening experience, with clearer, more accurate and powerful sound, better bass and treble reproduction, and a durable, rugged construction for long-lasting use.

There are several types of speakers, including:

1.-Box speakers: these are the most common speakers and are used in a variety of applications, from home sound systems to professional sound equipment.

2.-Column speakers: they are similar to box speakers, but have a taller and more streamlined design.

3.-Satellite speakers: are small speakers that are used in conjunction with a subwoofer to provide surround sound.

4.-Tweeter and midrange speakers: these are specialized speakers used to reproduce high and mid-frequency sounds.

5.-Bass speakers: these are specialized speakers used to reproduce low frequency sounds, such as bass.

6.-Wireless speakers: speakers that connect to a device via a wireless connection, such as Bluetooth or Wi-Fi.

7.-Home theater speakers: these are specialized speakers used in home theater systems to provide high-quality, immersive sound.

8.-Monitor speakers: these are specialized speakers used in recording and production studios to provide accurate and detailed sound.

9.-Bookshelf speakers: are medium-sized speakers that are placed on a shelf or furniture, ideal for small environments and to complement a home sound system.