High-quality construction, perfectly designed and thought out down to the last detail: with the SP3, manufacturer FiiO brings a desktop speaker to your desk that leaves nothing to be desired in terms of music, film and gaming. First of all, inside it is the larger-than-average 3.5-inch midrange speaker made of interwoven carbon fibres only 0.007 mm thick. Since these are very robust, stiff and yet light in their properties, they ensure enormously fast transient response while reducing non-linear distortion. In addition, their stability contributes to the longevity of the unit. The result: years of musical enjoyment, fabulous dynamics and a large soundstage. To keep up with the midrange driver's enormous power, the double-diffused S-shaped porting tube balances its airflow and transforms it into perfectly balanced, interference-free bass. In keeping with the overall design, the SP3 also features an enlarged one-inch silk tweeter that covers a frequency range of up to 35 kHz. The KSV copper-clad aluminium voice coil allows for crystal-clear reproduction and fine detail even at high volumes, while the soft, wave-absorbing tweeter dome structure effectively absorbs unwanted sound waves behind the driver. Another highlight is the FiiO speaker's asymmetrically arranged internal and external magnetic circuits. To form an internal and external magnetic circuit that allows magnetic flux of up to 1.2 Tesla, an auxiliary magnet is placed in the centre of the internal parts. Just plug it in and go!.