January 9th, 2018, 7:33 pm
J-ROB wrote:If you don't have a standalone RTA setup, get an RTA app for your phone and see where you are.
Are you using the M15 xover? No filter on the woofer in the M15, I think, so the woof impedance doesn't really matter, but the 902 should be 8 ohms.
I think the M15 xover has a MF notch and an HF control which changes the peaking network but it is not a volume pad, per se.
Properly balanced, that bent horn will be a bit on the smooth and laid back side, which is a good thing about it. It is definitely not an in-yo-face sort of horn.
January 9th, 2018, 9:00 pm
January 9th, 2018, 9:03 pm
January 9th, 2018, 10:35 pm
J-ROB wrote:Yeah, Octave RTA is what I use. Very handy indeed.
Try it at a live concert and see how little HF you're getting! The 32C is just about right in that respect.
I like that scheme of running the LF full range. Of course, the response of the LF driver will then suggest an appropriate crossover point. 414s play up to 6k+ pretty well, for example giving a lot of flexibility and requiring a low pass network if you want to run the horn low.
I had good results with a high first order crossover on 802s and a 32 filling in above the 414s.
I don't know anything about that JBL woofer. Figure out how high it plays on its own, a very useful data point.
January 10th, 2018, 12:11 am
January 10th, 2018, 8:11 am
J-ROB wrote:Download a white noise MP3 and play that for your RTA.
If you disconnect the horn, you will see what the woofer can do.
With horn and woof hooked up, you can get an idea of how everything matches up.
January 10th, 2018, 8:27 am
January 10th, 2018, 8:36 am
hjames wrote:J-ROB wrote:Download a white noise MP3 and play that for your RTA.
If you disconnect the horn, you will see what the woofer can do.
With horn and woof hooked up, you can get an idea of how everything matches up.
Gotcha - I have a Chesky demo CD with Pink and white nose tracks on it -
I'll have to dig it up when I get home this evening.
Thanks!
January 10th, 2018, 8:39 am
January 10th, 2018, 8:46 am