Brian L
Senior HTF Member
- Joined
- Jul 8, 1998
- Messages
- 3,304
Not so, unless things have changed and the quoted article is wrong.
My Marantz SR96 THX AVR is 24/12 (as is my non-THX NAD 762), which is consistent with the quoted article. Used with a main channel speaker that also has a -3dB point at 80 hertz and a 12db roll off sums to 24/24. But again, the crux of the matter is to get an effective 24/24 with a crossover that is 24/12 requires a main channel that has a natural 12dB roll off and a -3dB point of 80 hertz.
That was the crux of the Secrets article. Most AVR's use a 24/12 arrangement, but for that to function in an optimum fashion requires a main channel that matches the THX roll-off characteristics. Going with a main channel that goes an octave below 80 hertz gives you a mid-bass hump in the crossover region.
....I think!
Brian