AIYIMA S400 80W 2.0 Active Bookshelf Speakers - Compact Home Audio

In this review of the AIYIMA S400 speakers, the bottom line is simple: these compact active bookshelf speakers are aimed at anyone who wants full, clear sound from a small desktop or TV setup without needing a separate amplifier. The single biggest reason to buy is the combination of a 1-in mid-treble driver and a 3-in woofer in a 2-way active design, which delivers surprisingly strong low-end and clear highs for their size. Our review found them especially compelling for small apartments, desktop listening, and media centers where Bluetooth flexibility and easy setup matter.

Key Features

• 2-way active design: The dedicated 1-in mid-treble and 3-in woofer provide clearer separation between high and low frequencies for more natural sound.
• 80 watt output: Delivers ample volume for small to medium rooms so music and TV soundtracks feel full without distortion at reasonable levels.
• Bluetooth 5.3: Modern wireless connectivity makes pairing phones, tablets, and many TVs fast and reliable for streaming audio.
• Multiple inputs: Optical, RCA and USB connections give flexibility to connect a TV, computer, or legacy sources without extra adapters.
• Compact, durable build: A solid, well-constructed enclosure that fits on a desk or bookshelf and resists wobble over time.
• Included remote control: Makes daily operation convenient from a couch or desk without needing to touch the speakers.

Who It's For

The AIYIMA S400 is best for listeners who need a compact, active speaker pair for a computer desktop, small living room, or a TV with limited space. Its wired optical and RCA inputs plus Bluetooth 5.3 suit users who switch between sources often and want a clean, easy setup without a separate amp.

These are less appropriate for audiophiles seeking high-end resolution at reference volumes or for large rooms that require much greater power and bass. If you need deep sub-bass for a big home theater, adding a subwoofer or choosing larger floorstanding speakers would be a better fit.

Pros & Cons

Pros

• Excellent sound quality for the size with clear highs and satisfying bass extension from the 3-in woofer.
• Strong Bluetooth connectivity and handy wired inputs make switching sources straightforward.
• Compact, rugged design and a simple remote make them easy to place and use in everyday setups.

Cons

• Bass is impressive for bookshelf speakers but cannot match a dedicated subwoofer in very large rooms.

Specifications

Product type	2.0 channel active bookshelf speakers
Power	80 watt total
Drivers	1-in mid-treble driver and 3-in woofer per speaker
Bluetooth	Bluetooth 5.3
Wired inputs	Optical, RCA, USB
Controls	Included remote control

Our Verdict

The AIYIMA S400 is a strong value for anyone who wants compact, active bookshelf speakers that punch above their size. They offer reliable wireless and wired connectivity, clear tonal balance, and a durable build, making them a great choice for desktops, small living rooms, and TV setups where space and convenience matter.

Frequently Asked Questions

Do these speakers work with a TV?
Yes. They support optical and RCA inputs for direct connection to most TVs and can also stream over Bluetooth from smart TVs that support it.

Are they suitable for a computer desktop?
Yes. Their compact footprint, USB input option, and clear midrange make them well suited for desktop use and near-field listening.

Is a separate amplifier required?
No. These are active speakers with built-in amplification, so no external amp is necessary.