I don't understand why you want to leave phase to chance. Even when passive I always look at phase for each driver at each frequency, how much offset I want, whether I want positive or negative offset between them.
And I don't put steps on baffles of conventional speakers to do it.
😕
And I don't put steps on baffles of conventional speakers to do it.
😕
I don't. But without dealing with the physical offset or some ladder network, you can't always get the response smooth and the phase correct at the same time. I have gotten close, but not right. As my last speakers were all 5 or 6 inch 2-ways, and most metal cone woofers, I have had to resort to steep crossovers to control breakup. If I try again to find a half-decent upper midrange, I can go back to easier slopes and get the crossover out of the most critical range. Really good midranges seem to be an issue. I see several designs using the new drivers meant for sound bars. The DXT tweeter may be a reasonable compromise as the ER18 paper cone is not that difficult and I think it can be used higher than I have it now.
I lost my woofer files. I am going to need to re-generate them.
The crossover is a 2nd electrical around 1900 with an additional pad on the tweeter. It is relying on the drivers natural rolloff, which is too low for the tweeter and I think the woofer can do better. It looks like the tweeter baffle step is around 2400, so it may be clever to make use of that. I am sure the tweeter woudl be happier, not positive on the woofer.
I am either going to get a pair of DXT drivers and start over, or just get back to my 100 other projects like getting my Stag back on the road and about 5 furniture projects in the list. Short term, running APO eq and I think I will give the trial version of Dirac a shot so I can get on to the other things.
The crossover is a 2nd electrical around 1900 with an additional pad on the tweeter. It is relying on the drivers natural rolloff, which is too low for the tweeter and I think the woofer can do better. It looks like the tweeter baffle step is around 2400, so it may be clever to make use of that. I am sure the tweeter woudl be happier, not positive on the woofer.
I am either going to get a pair of DXT drivers and start over, or just get back to my 100 other projects like getting my Stag back on the road and about 5 furniture projects in the list. Short term, running APO eq and I think I will give the trial version of Dirac a shot so I can get on to the other things.
If you comp the Fs of that 27TBFC tweeter, it will play about 200Hz lower (LR4 acoustic) and remain happy. There have been numerous builds with it xover'd at 1700Hz.
Ditch the APO, and run them naturally. I don't auto-EQ anything in my system.
Wolf
Ditch the APO, and run them naturally. I don't auto-EQ anything in my system.
Wolf
AOP is temporary confirming the problem and to help figure out how to improve the room.
Yes, many use it that low, but I don't think it is wise. Distortion rises. The DXT I think may be slightly better due to the small efficiency from the waveguide, but still looking to push up a bit. I could swap to the SB ring dome as it is quite happy that low and the Peerless DA25TX00-08 has had my eye for some time.
Yes, many use it that low, but I don't think it is wise. Distortion rises. The DXT I think may be slightly better due to the small efficiency from the waveguide, but still looking to push up a bit. I could swap to the SB ring dome as it is quite happy that low and the Peerless DA25TX00-08 has had my eye for some time.
Series resister before the network and tweaking the LP parallel filter. I think when I fix the midrange dip, I can bring the tweeter back up. But, I may be starting over anyway. Been about 10 years, so why not? They were tuned for my last living room.
Does this mean you primarily continue to tweak the crossover to achieve satisfactory phase response on a flat baffle? Do you ever use sloped baffles, waveguides or ladder delay networks?
More often than not, you can tweak filters and compensate for some delay.
I try to keep in perspective that the listening axis is just one of infinite axes, it may not make sense to mess them up just to focus on one... Yes, I've tried sloped baffles and all those things. I've used ladder networks on a few speakers, as well as more conventional filter based solutions that gave me comparable results. I often use waveguides, but not to adjust spacing.
I try to keep in perspective that the listening axis is just one of infinite axes, it may not make sense to mess them up just to focus on one... Yes, I've tried sloped baffles and all those things. I've used ladder networks on a few speakers, as well as more conventional filter based solutions that gave me comparable results. I often use waveguides, but not to adjust spacing.