Originally Posted by laserjock II
Devil's advocate would say, when was scope last calibrated?
It wasn't calibrated. It is however, brand new. It's a $400 scope. I'm a hobbyist and I'm not doing lab grade work. I'm 100% sure when it shows clipping, the signal is clipping. However, if you have a calibrated lab grade scope with a 5 figures price tag you'd like to send me I'll be happy to repeat the measurements.
If you checked those other units with this same scope would you get the same results as you did with a different one?
I haven't re-checked the other units yet with this scope. However, the key isn't the voltage of the measurements. It's the volume on the 4520CI when clipping starts.
If it is so, is it just your one sample unit that is defective?
I'm not sure I'd say it's defective. It's design limited. IMHO, the design limit doesn't allow for quite enough real world usage.
Are all 4520's going to measure the same?
I would expect they will all clip at the basically same point. I people want to provide me access to more units to measure, I'd be happy to do so.
A lot of variables with too few data.
I disagree. I provided the data necessary for my assertion. The LFE output clips under some conditions that are realizable in actual use.