I too have a job to do and I really do not want to be on the phone all day with them either. I'm not sure where this attitude comes from where I'm out of order for calling tech support to ask about some of the technical aspects of product that I'm spending my hard earned money on. I have three vehicles all with nice setups, and I must say i've never had an issue with Zapco support or sundown support hell they even encourage me to call with " good" questions or issues. i don't know maybe it's different a different corporate structure at US amps. I think the md1d may be a better fit for Srs but at the same time if I do not like the Srs I may change to something else and I wouldn't want to buy another amp.