The Airpulse A300PRO Bluetooth Speaker System is finished with a conservatively elegant walnut wood veneer. Sonically, it has the same horn-loaded aluminum ribbon tweeter as the A300, but with an improved 6.5" aluminum cone, low distortion woofer. The power supply and amplifiers in the left and right speaker of the A300PRO is completely symmetrical. Each speaker has an internal 150W high-efficiency, low-ripple switching power supply.
Using a Texas Instruments TPA3251 digital power amplifier, each cabinet has a woofer output power of no less than 120W and a tweeter output at 10W. The speakers also use the XMOS xCore200 multi-core processor and Texas Instruments TLV320AIC3268 digital processor. The interconnection of the left and right speaker uses KleerNet wireless transmission technology. It uses Qualcomm QCC3031 series 5.0 Bluetooth chipset and supports the aptX HD high-fidelity codec, so that Bluetooth technology can be used with minimal signal loss. The A300PRO cabinet is constructed with 1" high-strength MDF, and to ensure optimal signal transmission, Airpulse uses TRANSPARENT internal speaker cables.