[YoungDave]

Hello Brian et al,

I am slowly working on my RM40 triamp project - I've got the crossover points initially set at 250Hz and 5.9kHz - but I still need to know the sensitivities for the 3 different driver sections.

My understanding is:
1.  Woofer/midwoofer - ?
2.  Mids - 92dB/W/Meter (for panel of 4 drivers)
3.  Hi - 94 dB/W/Meter

Can anyone (especially Brian) verify those numbers and fill in the woofer sensitivity?

I think it will make it a lot easier for me to set the relative levels if I start at a known point.

Thanks,
Dave

[Brian Cheney]

Woofer sensitivity is 89dB/1W/1m for 2.0V input.

[YoungDave]

Thanks, Brian.

Makes sense to me.  2.0V across 4R impedance dissipates 1W (P=E sq/R) & yields 89 dB.

That is exactly what I was looking for.

Dave