Wayne Parham Messages: 18835 Registered: January 2001
Illuminati (33rd Degree)
You're right, you could do it. But it's just so bass-shy without the large rear chamber.
The eight π loudspeaker has response-tailoring that attenuates the midhorn but then bypasses the attenuator with a coil to balance the bass and midrange. It's a lot like attenuating a horn tweeter to match a direct radiator.
You can use the same approach with a smaller rear chamber, but there's just less down low to handoff with the augmentation coil. So like anything else, it's a tradeoff that becomes a question of balance.