Yes apologies that was a typo - such a great and informative answer thanks David. Was planning on building 4 subs running 18TBX100 rated at 1250 RMS / 2400 max - already have the 18TBX's. Perhaps I could power with a cheaper sub amp with simple crossover filters and power the tops with a suitable DSP 4-channel amp for tops. Good to know I am allowed to get too much power and just dial it down for the coaxial and mix impedences across multi channel amps.
Also just confirming when you note the nominal power for each speaker is:
12NDL76 - nominal 400w per speaker - I am gathering you quote 1600w as that is 2x 800w of one group of 12"
= 2x 1600w channels needed
DCX - nominal 110w + 80w = 190w per group
= 2x 380w channels needed
Correct?
Stupid fun question time to build understanding:
1) is it possible to wire the DCX coaxial in series somehow from the amp so that it becomes an 8 ohm circuit powering both coaxials ?
2) I read somewhere that bridged amp outputs double their desired impedence i.e. 2 channels bridged that are rated for 2x 400w 4ohm individually would now be 8 ohm 800w when bridged ? Is this true?
3) If I power a 16 ohm circuit of the coaxial which is also quite sensitive with an 8 ohm amp say 400w channel, is it allowable/suitable to think of the wattage requirement as increasing / doubling ? So something along the lines of an 8 ohm 800w channel is necessary under this application.
4) Or under this same silly philosophy , that powering the 16 ohm coaxial with an 8 channel 300w amp would be suitable given it is more sensitive and the volume reduction would be suitable (and run 12" parallel as 4 ohms)
Kicking myself that I've easily made it that much more difficult
EG
