iFi DC iPurifier Power Conditioner Improve the Performance of Your DAC, Streamer, Laptop, or Any DC-Powered Device: Compatible With All Power Supplies, iFi DC iPurifier Power Conditioner Reduces Noise and Enhances Sound Drastically reduce the noise and improve the performance of your DAC, streamer, laptop, set-top box, guitar effects pedal - basically, every and any DC-powered device - with the iFi DC iPurifier power conditioner. Able to vastly enhance the sound, clarity, and operation of the generic Switch Mode Power Supply (SMPS) in DC products, DC iPurifier uses military-grade Active Noise Cancellation technology to reduce noise by a factor of 316x up to 100,000x - or, a noise-floor drop of 50db to 100db! You'll hear deeper-seated details, striking inner resolution, blacker backgrounds, and smoother tones from all your sources. All you need to do is insert DC iPurifier between your existing noisy power supply and the audio source. Effective from 1Hz all the way up to 5GHz, and offering extreme enhancements from 20Hz to 20KHz, the ultra-wide-band DC iPurifier is compatible with all power-supply designs (5 volt through 24 volt). Three included adapters/pigtails accommodate for different-sized DC barrel connectors and ensure that no matter what type DC device you want to connect, it will work with DC iPurifier. With DC iPurifier, you'll know why silence never sounded so good. 100% Music Direct Guaranteed. Have a Noisy Generic Switch Mode Power Supply? Just Add DC iPurifier Generic Switch Mode Power Supply (SWPS) designs are noisy because they were only intended for mainstream. Hence, noise was never a consideration. Now, such distraction is no longer a problem. Simply insert DC iPurifier between the existing noisy power supply and the source and enjoy noise reduced by a factor of 316x to 100,000x (or by 50dB to 100dB, respectively).