technically the 6.5 will not sound as good as the 6x9 because nothing replaces displacement when speaking of mid bass Especially when you're talking about the same class speaker.
technically the 6.5 will not sound as good as the 6x9 because nothing replaces displacement when speaking of mid bass Especially when you're talking about the same class speaker.
I understand this. What I meant is that the sound that the speaker produces will be similar in quality based on the same materials used in the construction of the speaker itself. And I've heard 6.5s that sound just as good as a 6x9. Maybe they don't get as low as a 6x9, but sounding as good is different than saying a speaker will play a wider range of frequencies. The 3.5in I run in my dash sound just as clear and loud as the 6x9s in the door. Both use the same cone, tweeter, and basket materials.
He was asking for our opinions of a decent sounding 6.5 coaxial to use for rear-fill. Mid-bass isn't a predominant task for rear-fill, so what I suggested I believe will suffice.
I've used these Morel 6.5" coaxials a couple of times and they sound pretty good.
https://www.amazon.com/gp/offer-list...&condition=all