A RCM doesn't have to be expensive. See KAB Acoustics EV-1. http://www.kabusa.com/frameset.htm?/
Price is $159...it's manual and is used with a household vacuum but it does the job. Also, check out A'gon threads on steam cleaning. Another low cost/hi return cleaning approach. I use it in conjunction with vacuum as well as Audio Intelligent cleaning solutions.
Price is $159...it's manual and is used with a household vacuum but it does the job. Also, check out A'gon threads on steam cleaning. Another low cost/hi return cleaning approach. I use it in conjunction with vacuum as well as Audio Intelligent cleaning solutions.