Axiom Home Page Forums General Discussion Technical Questions M60 Enclosure

Max sound out unrelated to power in … (didn’t read spec so just going by your “max SPL” statement)
The driver can only put out so much

The passive and the active T are rated for the same peak power input. But without a passive cross-over, I'd expect the active to hit 3dB SPL higher.

But second line still applies does it not? Same drivers same max.

If you look at the LFRs, the passives are rated for 600W and the actives for 1200W "average". Peak power in is 4 times those numbers. That suggests the limiting factor for power input is the twin, passive cross-overs; not the drivers.

Both the passive and active T are rated at 500W average and 118dB peak SPL. And the sensitivities of both are 89dB! That can't possibly be. The actives must be more sensitive and I would expect they can take more power and hit a bit higher in SPL.

Ok, that makes sense for that crossover but what if the crossover is not the limiting factor?

I suppose it is possible the T max power in is limited by the drivers. How likely is that though given the M100 can take 600W vs. the T's 500W.

That still doesn't explain the sensitivity. The active must be more sensitive even if only by 1 dB.

max power is dictated by the first component to go ... and the drivers are the best suspects in this case ...

There are trade offs with everything ... giving up max power on the driver might have gotten an improvement elsewhere that Bryston deemed more important ... what and why needs to be answered by the designer. In any case I'm still not sure where sensitivity comes in ... unless we are not talking about the same spec.

Sensitivity: if I feed 1 Watt broadband in, how much SPL do I get out?

A passive crossover reduces the amount of power incident at the driver.

no argument ... what you state is true ... but it's also not relevant ...
My take ...
Max SPL is max SPL and what ever you need to put in to get it is moot.

I am so damned confident the specs between the passive and active Ts are wrong, that I'd bet my left 'nad. But if I'm right, Tanner will have to forfeit both of his.