Harmonix
RF-999Z
Million Spike Bases

RF-999Z is a new product that has been improved based on the tuning effect of RF-999MTmk2 and RF-999M. The tuning effect is even greater than you would expect from the Harmonix Tuning Maestro!

RF-999Z is designed for large speakers. If your speakers already has spikes, replace them with the RF-999Z. If your speakers don’t have spikes, it is suggested to use REI-168 as spikes. Place the REI-168 at the corners of your speakers edge and combine them with RF-999Z spike bases. The height of REI-168 can slightly be adjusted, so adjust it firmly.