I want to measure how accurate my QA setup is and are looking at using the Benchmark AHB2 as a reference. I am hoping we will get the same results as seen on audiosciencereview where the amp measured a low of 113 THD+N. This can of course not be archived by QA450+QA401 alone but need some assistance. I was lucky to obtain one of the few QA480’s - and I was hoping to bring this into play to replicate the audiosciencereview numbers.
I’m hpoing to get some help and advice on how to proceed. I’ve been reluctant to put the QA480 into the chain - as I’m not certain if it can handle the levels.
So first question is would be - will it be safe to loop the output from the QA450 into the input of the QA480 and that output into the QA401? For 5W@4Ohm and 150W@8Ohm?
I’ve included my regular measurement from measurering only using QA401+QA450 - where I hit the
I would appreciate all help, suggestions and advice that anyone can provide.