DXE Ferrite Low Frequency Large Toroid Packs provide a high degree of RF choking and can dramatically reduce RF noise. These Low Frequency Toroids can be used for special LF applications on wires and cables. Effective RFI and noise suppression, from 150 kHz and up through HF, is possible on wires and cables connected to routers, speakers, computers, PC power, control, keying and audio devices. With a sufficient number of turns on the toroid, pulse noise and RFI may be virtually eliminated. These large toroids offer excellent surface area for a number of turns of wire. Although some effort is involved with winding smaller wires around toroids, a much greater degree of RF noise suppression is achieved. DX Engineering Low Frequency Toroids provide excellent value for RF choking on many types of wires and cables, even those with with plugs.