The Oberon D20 is a high-end home theater speaker system that delivers even more immersive sound than the Oberon D10. It features the same 8x2,5" driver units, but it also has a larger subwoofer with a 10" driver. The D20 also has a wider frequency response of 35Hz-200Hz.
The main difference between the Oberon D10 and the Oberon D20 is the size of the subwoofer. The Oberon D20 has a larger subwoofer with a 6.5" driver, which gives it a wider frequency response and more bass.
The frequency response of the Oberon D20 is 35Hz-200Hz. This means that it can reproduce sounds from 35Hz to 200Hz, which covers the lower frequencies that are important for creating a realistic soundstage.
The sensitivity of the Oberon D20 is 90dB/1W/1m. This means that it will produce 90dB of sound when it is given 1 watt of power from an amplifier.