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Multi-Way Conventional loudspeakers with crossovers

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Old 11th May 2013, 11:20 AM   #911
Pano is offline Pano  United States
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Albert, buy a few values to test. Maybe ranging from 5 ohm to 7 ohm. Or buy some large values to put in parallel with the 8R to bring it down.
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Old 11th May 2013, 01:17 PM   #912
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Quote:
Originally Posted by Pano View Post
Albert, buy a few values to test. Maybe ranging from 5 ohm to 7 ohm. Or buy some large values to put in parallel with the 8R to bring it down.
Eh.....good point. Thanks
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Old 13th May 2013, 12:22 AM   #913
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I have some resistors paralleled to 6.8R for R2. The whole spectrum opens up and the mids are much fuller with body. The highs still sound compressed, not very open. I thought I would let it sing for another hundred hour then comment.
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Old 13th May 2013, 11:38 PM   #914
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Smile Ultra adjustments

There are, of course, various factors that will influence how the Ultra will perform.

Among them are:

Listener tastes

Distance from rear and side walls

Reflectivity of rear and side walls

Amplification and source qualities

General room size and dimensions.

And that is just the beginning!

However, as has been posted prior, you can, with in reason, adjust the crossover of the Ultra to accommodate the above variables.

Part of the situation is my personal, laid back preferences relative to music playback, voicing. Not right or wrong, just what I prefer.

And, as has also been stated previously, I do encourage builders to experiment and adjust my creations to suit all of the above and more.

So... hope... more like trust, you will find your own personal solution.

But, one has to admit, for the cost of admission, the Ultra provides a surprising amount of performance for such a simple and easy to execute design.

OK, could not help myself... It's one of my babies you know!!!

Good luck and sincere wishes you find THE configuration that floats your boat!!

John
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Old 14th May 2013, 12:03 AM   #915
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John,
It sounds very good already,but I just wish if I could grease a bit more out of it. It's performance is way over my expectation really. I don't expect so good the result with those inexpensive speakers. The design is outstanding n I believe you put lots of time on. Thanks so much for sharing.
Albert

BTW my room is 16x28. I have 326 as lineamp, 6c33c otl as power, cdpro as source together with audionote dac. I have the Ultra five feet away from the back n two feet from the side.
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Old 14th May 2013, 08:54 AM   #916
AndrewT is offline AndrewT  Scotland
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Can an Open Baffle be turned into an Infinite Baffle by placing the speaker in the room wall?
What advantages and disadvantages to doing this?
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Old 14th May 2013, 11:48 AM   #917
Pano is offline Pano  United States
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It can be, of course. But the crossover will need to be very different, as the frequency response of each driver will be different, especially the woofer. The power response will also be vastly different.
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Old 14th May 2013, 11:55 AM   #918
AndrewT is offline AndrewT  Scotland
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A big change to effectively turn it into a different speaker then?
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Old 20th May 2013, 01:38 PM   #919
tER299 is offline tER299  Netherlands
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Are there any measurements of these speakers?

I have a pair of My_ref monoblocks, operating at circa 40 watts in 8 ohm speakers, will this be enough to run these speakers at around 100 db?
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Old 22nd May 2013, 02:03 AM   #920
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Default Ultra power requirements revisited....

40 watts per channel (RMS) will get you close to, if not a bit over 100 db peaks at 6' - 9' listening distance out of a pair of Ultras. For most music, in most environments, for most listeners, you would be OK. Once you get over 60 watts or so you start running out of the clean output capacity of the drivers. Hope this info helps.
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