Q Acoustics 2070 Si Subwoofer in Gloss Black is a completely DSP (Digital Signal Processing) driven system with highly efficient class D amplification an unusual feature at this price level. This means that Q Acoustics have been able to achieve an advanced level of functionality as well as optimising the sonic performance by undertaking all filtering & limiting completely in the digital domain. An example is the Speaker Type function switch which alters the characteristic of the subwoofer's frequency response at the crossover point. This allows the subwoofer to be optimised for use with either ported speakers like the rest of the Q Acoustics range or infinite baffle models. Also known as 2070S 2070 2000i QA2577. Enclosure type: Ported Bass Unit: 2 x 170mm long throw Amplified Power: 140W rms Crossover Frequency: 50 Hz
- 150 Hz (var)