Vertical off axis response is terrible but they sound so good on axis that it still gets 5 stars. Just know that it is a major drop off in treble off axis but none at all horizontally when considering these for your next project. Thanks!

I use these on a pair of all dayton audio part DIY speakers I used these with an RS270 Reference 1034; woofer. I have them crossed over at 2000hz which is pretty low for these but they still perform very well. The speakers i made with these impressed my entire audio engineering club. I even compared these DIY speakers to a pair of ELAC UNIFI ub5s and they said it was clearly better. They said compared to some of theirs it compared closely to a 1600$ monitoring system. These drivers give very accurate sound without causing ear fatigue. I used a L-Pad between the crossover and tweeter because the higher sensitivity on the tweeter then on the woofer.