This is as far as I got before being shutdown by the kid:
So far so good, the tweeter is no Viawave, and isn't even as good as the round faceplate GRS but it works just fine.
The woofer is a champ. Extremely good, better than the paper version I have used a couple times. The only drawback is it requires a relatively large cabinet to take advantage of its low Fs. I am at ~0.57 cubic feet for an F3 of 40Hz.
If I am allowed, I will post the individual driver rolloffs. This iteration has the crossover at around 3.9K
@Steve_Lee said:
The pairing resembles an exclamation point in the written language - something to ponder as you develop your XO and decide on a name . . .
Thanks for the inspiration - I am going to name these the "Exclamations".
OK, they are 2nd order slopes resulting in a wide but somewhat shallow reverse null (forgot to save a pic) which is where the phase fuckery at 7K presents itself.
Here it shows individual slopes based on modeling. There are a few component differences, plus I added a notch on the tweeter at 1500Hz in the model because it just looks better on the bottom end.
So made a few changes, and ended up with nice, almost textbook BW3 slopes. Barely any change when reversing polarity on tweeter. Sounds decent enough, but does lack a bit of sizzle on the top end. On the other hand, sibilance is very well controlled. Distortion is manageable, as well. I will post final measurements in a few days.
So buttoned these up yesterday morning. They turned out pretty good, but the poor vertical response means it is critical to listen on the tweeter axis. Otherwise they are pretty good little speakers. The mids especially are nice, which I attribute to the poly cone and the nice motor on the SB.
My typical downward spectral tilt.
Just starting a jam session in the Nerdery.
Here is the crossover, pretty straightforward. Yes that is a notch on the woofer right smack dab in the midrange.
Sorry, did not remember to save a distortion picture, but there is a slight peak at the crossover point in 3rd order. It is otherwise low distortion until 100Hz when the woofer distortion starts to rise.
Overall, this was a fun project with great results. However, I would not personally use this tweeter again. It is a great tweeter, but not as good as the round faceplate GRS version. I keep wishing they would go on sale someday so I could buy another pair of them.
Comments
This is as far as I got before being shutdown by the kid:
So far so good, the tweeter is no Viawave, and isn't even as good as the round faceplate GRS but it works just fine.
The woofer is a champ. Extremely good, better than the paper version I have used a couple times. The only drawback is it requires a relatively large cabinet to take advantage of its low Fs. I am at ~0.57 cubic feet for an F3 of 40Hz.
If I am allowed, I will post the individual driver rolloffs. This iteration has the crossover at around 3.9K
The dip ar 7K is a phase issue I am debating on chasing down.
Thanks for the inspiration - I am going to name these the "Exclamations".
OK, they are 2nd order slopes resulting in a wide but somewhat shallow reverse null (forgot to save a pic) which is where the phase fuckery at 7K presents itself.
I believe Curt and Wayne had a speaker design they named the Exclamations.
Xclamationz . . . .
Don't be a stahl head!
I'll just come up with something else, then. No worries - not going to stahl a name.
Here it shows individual slopes based on modeling. There are a few component differences, plus I added a notch on the tweeter at 1500Hz in the model because it just looks better on the bottom end.
I may wire this up and give it a listen later.
So made a few changes, and ended up with nice, almost textbook BW3 slopes. Barely any change when reversing polarity on tweeter. Sounds decent enough, but does lack a bit of sizzle on the top end. On the other hand, sibilance is very well controlled. Distortion is manageable, as well. I will post final measurements in a few days.
I've gotta turn this pile of shit into a couple crossovers. Sigh. Just lazy I guess.
I'm sure your orange cylindrical supervisor in the background is keeping you on task.
Sehlin Sound Solutions
So buttoned these up yesterday morning. They turned out pretty good, but the poor vertical response means it is critical to listen on the tweeter axis. Otherwise they are pretty good little speakers. The mids especially are nice, which I attribute to the poly cone and the nice motor on the SB.
My typical downward spectral tilt.
Just starting a jam session in the Nerdery.
Here is the crossover, pretty straightforward. Yes that is a notch on the woofer right smack dab in the midrange.
Sorry, did not remember to save a distortion picture, but there is a slight peak at the crossover point in 3rd order. It is otherwise low distortion until 100Hz when the woofer distortion starts to rise.
Overall, this was a fun project with great results. However, I would not personally use this tweeter again. It is a great tweeter, but not as good as the round faceplate GRS version. I keep wishing they would go on sale someday so I could buy another pair of them.
12 gauge wire nuts for the win!