Sorry I haven't been able to get back with some data but thanks very much for the advice. I have to wait until I have the house to myself and then I am going to create detailed calibration curves for each sub - if only to get good volume cross referencing. I agree that differences in maximum output would not be of any practical concern to me. Does anyone think I might blow one of these big boys if I run them at max power with the receiver calibration signal? I think I read somewhere that these things are indestructable?

Thanks
Ian

PS thanks ihifi I knew I had read your posts before.

Last edited by ibmack; 05/21/09 02:24 AM.