Doepfer A-199 Spring Reverb Module

When I bought this I read about the hiss and noise of the module/tank combination. Others said that placement made a huge difference and that by moving it to a certain magic spot the noise would disappear. I never found the magic spot and the noise ruins for me what otherwise would be a lovely module. I read that Doepfer issued them with poor quality RCA cables and that if they are changed that it can be significantly improved.
Pros - the effect is lovely, the module is well built and has good options for output of treated sound. Physical interaction with the tank itself also creates new options.
Cons - unwanted hiss and noise, placing the tank outside the modular case means an unsightly opening and long cable, putting it inside the case may mean no ability to control the noise. In my case the latter option was not possible as the case is too small.