I've had excellent results using both the Welborne Labs "Gatekeeper" and the Shunyata "Hydra" in my system (currently use both)These units are passive (unlike the Tice) and do not seem to restrict dynamics or cause any ill effect on the sound. Hydra = $1,500.00 used. Welborne = $300.00 new. The Welborne is 90% of the Hydra IMO.
