Energy storage and sound quality improvement Battery of capacitors increased to 4700 uF x 2 plus 470 uF, delivering greater energy reserve for the audio system and resulting in stronger sound from the stereo channel, with especially noticeable impact on the subwoofer. Independent volume control for stereo and subwoofer The volume of the stereo and the subwoofer can be adjusted separately to achieve precise balance in any listening scenario. Lowlatency Bluetooth for clearer audio Utilizes a lowlatency Bluetooth chip to reduce audio delay and improve clarity between wireless source and playback. Bluetooth pairing and app support Bluetooth pairing to form stereo Supports Bluetooth pairing functionality; after pairing, two sets of power amplifiers can be linked to create a stereo setup. App connectivity and remote firmware updates Connect to the APP to enable remote firmware upgrades or firmware refresh, making upgrades simple and ensuring the product functions remain uptodate. Sound filtering and signal integrity LC filtering with film capacitors Uses LC filtering and film capacitors for improved filtering performance, reducing noise from the power path, avoiding sound emission from the inductor, and enhancing waveform restoration. Key attributes and practical benefits Function and performance Enhanced energy storage supports more dynamic audio, particularly benefiting bass performance and overall channel clarity. Compatibility and expandability Designed to work with Bluetoothenabled audio chains and multiple power amplifiers to achieve stereo playback. Materials and construction Film capacitors are used for improved filtering and signal integrity within the LC network. Size and integration Configured to upgrade existing systems by increasing energy storage and enabling independent channel balance control without changing core architecture. Practical use scenarios Home audio upgrade Upgrade a compact stereo system with improved bass response and clearer mid/highs, especially for subwooferheavy listening like movies and music with strong low end. Multiamp stereo expansion Pair two amplifiers to form a true stereo setup for larger rooms or home theaters, with independently adjustable left/right channel levels for balance. Appmanaged maintenance and upgrades Use the APP to monitor and perform remote firmware upgrades, ensuring the device remains current with features and improvements without onsite service.