Built to order by hand in the USA. This model has been discontinued and replaced with a version 2. https://store-ur455.mybigcommerce.com/emf-audio-ermagerd-v2-15/
Continuous power: 6500 watts RMS
Peak power: Come at me bro!
4" voice coil
50mm xmax linear, one way
10.125" 6 layer spider
12.125" mounting depth
Re 1.86 ohms
Fs 28 hz
Qes 0.6802
Qms 3.9723
Qts 0.5808
Le 1.1973
Vas 40.9858 liters
Sensitivity 83 dB @ 1 w/m
Sensivitity 89 dB @ 2.83v