I'm not going to mention the brand but here are the specs from the same manufacturer: VHF - 25HZ-20KHz +/- 3db 120db dynamic range THD l.t. UHF - 50HZ-15KHz +/- 3db 120db dynamic range THD l.t. 0.6% This is not a typo. The same manufactorer gives a better frequency rating for the VHF units. Opinions? If this is in the wrong forum, mod's feel free to move to the appropriate area.