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Multi-Way Conventional loudspeakers with crossovers

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Old 14th November 2012, 11:39 PM   #91
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Obviously we have rather different aesthetic preferences.. BUT that's a better picture (showing the intended result to better effect IMO).

Note: I *like* the reveal. It gives depth to the design. At once you can see a monolithic view while also seeing the technology behind it - sort of like a fine watch with part of the mechanics shown.

Suggestion: put your best "pic" forward on your website; i.e. replace the open view version with this new pic.

(..I'd at least get a metallic paint finish for the sub box in the rear (that's currently red) to match the mesh in front though. )

Did you know that Madisound has a metallic fabric they are selling for "grill" cloth? (..not a lot of help structurally, but still interesting):

The Madisound Speaker Store
Already posted that pic.
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Old 14th November 2012, 11:41 PM   #92
ScottG is offline ScottG  United States
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Already posted that pic.
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Old 15th November 2012, 12:14 AM   #93
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There has been a lot of discussion about the Linkwitz LX521 which is obviously very similar. One area that I find controversial is the 1st order x-o between the mids. The Note and the Note II are designed with an LR4 acoustic crossover between the mids. since the Note II will be digital I am contemplating offering configuration files for which the mid coupling crossover is 1st order, 2nd order and 4th order. These could all be loaded in the the miniDSP and switched in real time and each individual will be able to report back as to which slopes sound the best. You have to love digital for such flexibility.
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Old 18th November 2012, 09:07 PM   #94
SAC is offline SAC  United Kingdom
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This is clearly panning out to be a cheaper system than the original Note. Is it expected to be better in sound quality however and worth moving from the first version to the second version?
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Old 19th November 2012, 12:05 AM   #95
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This is clearly panning out to be a cheaper system than the original Note. Is it expected to be better in sound quality however and worth moving from the first version to the second version?
There are significant differences in that the new version is all active, digital, and required 4 channels of amplification/speaker vs 2 channels for the original. But the cost saving sort of make sup for that, not to mention that the miniDSP and additional amps are more investments than speaker specific. As for the performance, naturally, bass is less extended with the SLS woofer and there is a few dB reduction is max SPL. But the new midrange configuration is outstanding. I really like the SS Discovery lower midrange, and I don't notice any loss of performance with the Vifa tweeter. I hate to say it's better than the original Note, or even that either Note version is Berte than the NaO II RS, which I have some what of an emotional attachment to, but hands down, the Note II RS performs at a very high level. I get a sense of better dynamics and greater midrange detail that in the original Note. I'm still tweaking the crossovers and spent a good part of the day listening. In case you were not aware, the speaker will be released with, as it stands now, 4 configuration files: My current reference is set up so that each driver is eqed separately to match the target acoustic response (LR4 acoustic crossovers); the second file uses LR4 electrical filters between mids and uppermid/tweeter with a single, panel wide EQ function; third and 4th configurations are similar to the second but with (3) a 2nd order LR electrical filter between mids, or (4) with staggered 1st order electrical filters between the mids. So, you will be able to try several different crossovers and see which you like best. As I have pointed out, I have reservations about the 1st order due to the excursion issues and in my system I believe there are other acoustic issues which arise from wider overlap.

Well there I go getting all verbose again. Bottom line, I don't think anyone who would choose to build the Note II RS will be disappointed. In fact, I think they will be very please and amazed at the level of performance, regardless of cost. Plus, with the 2x8 minidsp crossover there will still be 5 channels of system EQ available to use for custom eq setting. But if you have built the NaO II or original Note and are happy with it I would not be in a rush to make the switch. Consider the differences, the NaO II RS is analog hybrid or all active. The original Note is analog hybrid. The Note II RS is Active digital. Choose your poison.
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Old 19th November 2012, 03:24 PM   #96
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I have added some additional data to my News page. In particular I have been revisiting the question of the order of the midrange coupling crossover. I have revised the part on excursion for the various implementations of 1st, 2nd and 4th order couplers and present CDS plots for the these cases as well (at the bottom of the page).
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Old 20th November 2012, 03:12 PM   #97
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Hey John, I'm not sure if this question has been presented yet but.....
Have you considered swapping the 10f for the vifa tc9?
About the same size and performance, but the vifa is 10 bucks.
It's also a higher Q and goes a bit lower.
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Old 20th November 2012, 05:00 PM   #98
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Hey John, I'm not sure if this question has been presented yet but.....
Have you considered swapping the 10f for the vifa tc9?
About the same size and performance, but the vifa is 10 bucks.
It's also a higher Q and goes a bit lower.
It's way to low in sensitivity. The higher Q doesn't do anything for the frequency range over which it operates.
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Old 20th November 2012, 05:27 PM   #99
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It's way to low in sensitivity.
What difference does sensitivity make in an active design?
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Old 20th November 2012, 05:47 PM   #100
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What difference does sensitivity make in an active design?
Especially when you can save 180 bucks!
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