When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. At IBC2011, Radio Frequency Systems (RFS) announced the availability of the full range of 8-pole ...

A filter is a device that passes or rejects certain frequencies of a signal. Three common type of filters are the low- pass filter the bandpass filter, and the high-pass filter. An ideal low-pass ...

In “Filter DC Voltages Outside Your Supply Rails” we saw how you can re-imagine a popular active bandpass filter topology into a building block for a form of higher-order lowpass filter that doesn’t ...

When I first heard about PürTrek mashing together trekking poles and a water filter into one product, I was intrigued. I’m a big fan of efficiency and having a water filter always at hand when hiking ...

Wideband filters with bandwidths in excess of an octave can be created by cascading a high-pass filter and a low-pass filter. In this design idea, nine-pole high-pass and low-pass filters have been ...

In the last edition of Don’t Fear the Filter, we built up two examples of the simplest and most-used active filter of all time: the two-pole Sallen-Key lowpass. This time, we’re going to put two of ...

Gritty, flexible and a lot of fun, the 2-Pole is a great way to instantly add character to your sounds. Not ideal for DJ use, despite claims. Noisy as gain and drive increase. MusicRadar's got your ...