The A/DA Flanger, in my opinion, is the biggest sounding flanger ever made. It delivers a lot of amazing sounds and it has a range that makes all flangers seem like half flangers. I have been using the A/DA for years. The first time I ever heard this flanger was at a concert went to in 80′s. The Pat Travers Band had two great guitar players and they both used the A/DA’s. They would kick them on and the entire live mix would be in a giant flange. I used this flanger on The Mars Volta’s “Goliath” and it always gave a lift to the dynamics of that track. It may not be the cheapest flanger but it is the best, in my opinion.