If you are looking for a combination of both quality precision and power for your main studio speakers, you can't go wrong with the SC4 series. Both models - the SC407 and SC408 - feature a very powerful amplifier array, with one amplifier per driver. The larger woofers duplicate all frequencies up to a certain crossover frequency. The mid-range woofer picks up from there. This also means all our four-way speakers are symmetrical, as the woofers do not serve different frequency bands, but essentially duplicating the bass frequencies with an utmost preciseness. An extra developed 4'' SilverCone midrange unit joins these high quality bass drivers that endows these speakers with a greater linear excursion and clear and accurate midranges. The bass and mid woofers in our SC407 feature our very low distortion copper cap magnet system. They combine our unique glass fibre coated diaphragms with stable honeycomb structure to deliver sound spectacularly detailed and clear. Frequency response: 35 Hz - 21 kHz. Max. SPL: 116 dB / 1 m. Limiter: Yes. Crossover frequency: 280 Hz / 3000 Hz. Dimensions: 600 x 260 x 320. Weight: 18 kg.