FiiO SA1 are powerful active speakers that impress with high-quality components and versatile connectivity options. Equipped with a 3.5-inch wood fiber woofer and a ¾-inch tweeter made from an aluminum-magnesium alloy, the speakers deliver a detailed sound profile with warm mids and clear highs. The electronic two-way crossover accurately separates the frequency ranges, reduces distortion, and ensures optimized sound reproduction. A bass reflex design allows for low-frequency reproduction down to 65 Hz, rounding out the balanced sound profile. A digital Class D amplifier from Texas Instruments is employed for amplification, providing 20 W for the woofer and 5 W for the tweeter per channel for powerful and precise playback. The four-channel amplifier unit drives the drivers independently, ensuring the highest sound quality. A variety of connectivity options allows for both wired and wireless playback. Support for high-resolution Bluetooth with LDAC enables wireless streaming and guarantees lossless playback in high quality. An integrated phono preamplifier allows for direct connection of turntables, and an additional subwoofer output enables expansion of the sound system. Control is via physical knobs or the included infrared remote control. The FiiO Control App allows for sound profile adjustments through a 31-band equalizer and selection from eight pre-configured sound modes. The robust MDF cabinet with acoustically optimized design minimizes unwanted resonances and enhances sound precision. Automatic standby and wake-up functions ensure energy-efficient operation. With thoughtful design, high-quality materials, and a variety of features, the FiiO SA1 offers a powerful solution for demanding audio applications.