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In the Forum: Playback Listening
In the Thread: Remedies the Beauty
Post Subject: Howdy JarekPosted by Edgar= on: 10/24/2022
My comments are rather discouraging arn't they! Not my intention but hopefully helpful in the long run.
Regarding time alignment i just wanted to raise the point i think it might be more relevant than initially anticipated by someone considering building this config. The scanspeak plays quite high and i hear quite alot of MF energy from it. This was offered in the context of the hit and miss results Romy and Bill had with Dunnoy, sometimes magic but sometimes not, and as a possibility, this might be relevant to that. Please know this is a strong suspicion for me and not something i have thoroughly tested. My suspicion arises from I felt I had better alignment with the 10 than the 15 as the depth of the 10 is closer to the scanspeak 10. I ran the 10 first and then modified the same boxes for the 15. The tannoy is mounted on the front of the box baffle and the SS on the back in an attempt t get acoustic centres closer. I am away but will send a photo through when I get back.
I would say horizontal time alignment probably more critical than vertical but they are both critical generally i suppose. You might be able to try mounting the SS on the back of your front baffle and see if you notice an improvement but i am not confidant it will be worth it, particularly if you are currently satisfied with what you are hearing. Or, given the distance between your two drivers you might be able to just quickly test if angling your speakers back and forth (adjusting the horizontal alignment of your drivers relative to your ear) alters your perception of the sound. quick and dirty test might help gauge the relevance for you.
I want to reiterate that what i like about Dunnoy is the simplicity of the config. Most people can find a tannoy, order the scanspeak, find a box, slap them in and just like that you will have an outstanding loudspeaker. Very small box relatively, wide bandwith, sophisticated dynamics and very good tone. To get better or more would require a LOT more work, and look something like Macondo i imagine.
Hope that helps.
Ed
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