If one of your audio components suffers from an irritating transformer hum, then the DC Blocker is the perfect product for you. By intelligently blocking DC voltage greater than 1,000mV (the main cause of humming), the DC Blocker can eliminate the transformer hum in your equipment. The DC Blocker manages this while maintaining equipment safety and EMI shielding to ensure there are no negative side effects. Additionally, the DC Blocker can be used anywhere around the world!

If you can hear a consistent hum coming through your speakers, whether playing music or when idle, then you may have multiple ground/earth connections in your system causing a ground loop. This ground loop can be fiddly to fix, however, iFi have come along with an intelligent solution to help solve this issue. Enter the GND Defender! By using a specially designed AI Ground Detection, the GND Defender can automatically disconnect the ground on your device if there is a ground loop, eliminating the low hum through your speakers. But it does not stop there, the GND Defender can even reinstate the ground connection to pass current if any faults are detected in your system. This ensures a safety fallback to help protect your equipment.

If you have identified that you have a Missing/No Earth, then the Groundhog+ is for you. Its sole objective is to put the Ground/Earth back into your system and banish those unwanted, audio pests. No predicting the weather with this hog! All you need to do use a standard IEC power cable to connect the Groundhog+ to your audio system. The Groundhog+ then adds back the missing Ground/Earth connection to dissipate noise.

HIFISTAY's V4 spikes are fundamentally different from your traditional steel spikes, especially those supplied with your speakers. There are 4 different variations of spikes available from HIFISTAY, starting with the simplest design, the Flip Spike, their height-adjustable Lutz Spike, the dual-motion swing Double Axel spike and all the way up to their flagship triple-motion swing, the Triple Axel spike. All of the spikes are made from duralumin and stainless steel, with a ceramic ball bearing as the contact point. The recommended load bearing per spike is 40kg for Flip & Lutz, 70kg for Double Axel and 120kg for Triple Axel.