The Hiwill A51 PRO is a 5.1-channel sound system with a stated total output of up to 420 W. Alongside the soundbar, it includes two rear surround speakers and a wireless subwoofer. It supports Dolby Atmos and can connect to a smartphone or tablet via Bluetooth 5.3.
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System and speakers
The pair of rear speakers complements the soundbar, helping to distribute surround sound behind the listener. The soundbar itself has nine drivers. The system also includes three separate tweeters capable of reproducing frequencies up to 20 kHz.
Bass is handled by a wireless subwoofer with a 6.5-inch driver. Its wireless connection to the system offers more flexibility in placement, although it still needs a power supply.
Dolby Atmos and sound processing
The Hiwill A51 PRO supports Dolby Atmos, a surround sound format that can incorporate height effects. Support for the format alone does not specify how the system reproduces those effects or which connection is needed for Atmos playback.
The system uses HarmonicX Sound Processing, alongside HXS ClearVoice, which is designed to improve voice intelligibility. This may be useful when watching films and series where dialogue is mixed with music or sound effects.
Power and frequency range
The system has a stated total output of up to 420 W and a frequency range of 45 Hz to 20 kHz. The range describes the frequencies reproduced from bass to treble, but without measurement conditions it does not indicate how balanced the sound is or establish its quality. Likewise, the power figure alone is not enough to determine whether the system is suitable for a particular room size.
Connectivity and dimensions
Bluetooth 5.3, with a stated range of approximately 10 metres, allows wireless playback from a smartphone or tablet. Actual range depends on the surroundings and obstacles between devices; the Bluetooth version alone does not guarantee lossless transmission.
The soundbar measures 590 × 118 × 58 mm and weighs 4.5 kg, so it is worth checking the available space before placing it near a TV. The available specifications do not include dimensions for the rear speakers or subwoofer, or details of the rear speaker cabling.
The Hiwill A51 PRO is an option for users who want separate rear speakers and a subwoofer alongside a soundbar. Before choosing it, consider where the components will go and check the connections needed for your TV.
