Originally Posted by LTD02
bingo! that is why the standard is 1w@1m, where w= watt. sensivity based on power is the standard.
Calculating or plotting sensitivity and producing useful plots for system design are 2 different things.
in fairness to you, some folks have been cheating the system lately by trying to shift to 2.83v@1m because when re is less than 8ohms, it makes their systems appear to have greater sensitivity.
If by "some folks" you mean the vast majority of the industry, yep... We're all cheating, because it's practical for system design and comparison in an age filled with amplifiers that tolerate impedance variations with grace.
where i was coming from is that if you don't follow the standard 1w1m, then for anybody to be able to assess your design, you will have to provide the number of drivers, how they are wired, the re of eacch driver, and the input voltage in your simulation. then, we can calculate the 1w1m sensivity of the proposed design. alternatively, you could just jump on the train and model it the right way.
Well, you already had driver Re, and I said the simulations were for a single driver, (did I not?).. So all you needed to ask for was the voltage. Instead, all this? Why?
BTW: 40V, in case you hadn't figured that out already.
you posted some designs which is great, but without providing all the information, so it isn't possible to assess them,
The assessment was internal to the post; proposed design performance, vs alternatives at equal drive level, no other designs had or have been posted? If alternative designs are proposed, I'll probably re-sim and compare them at the drive levels I have chosen to check for particle velocity and displacement anyways (something often overlooked), so you really have nothing to be concerned about.
You posted no
designs, which isn't so great, instead you spent a lot of time complaining about someone elses methods of simulation and generally making a mess of a thread to drive a point that is largely irrelevant and impractical.
the common plots that folks post around here are 1w1m plots and plots based on the amount of power that either the driver is rated at or the power based on their amp. this makes comparing designs much easier.
Having had a look around here and on many other forums, I would say that you appear to be the one posting "1w1m" plots, while the vast majority of the rest of the world posts plots at nominal impedance derived levels when using hornresp.