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Old 14th March 2013, 12:10 PM   #111
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My left speaker seems to be playing a bit, tiny bit louder.
Phase is ok
Stuffing levels checked, played- the same.
position swap, moving to different location- same

Any ideas ?
I can check power response but don't know how ...
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Old 14th March 2013, 12:22 PM   #112
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I suspect the louder one could be distorted. Not sure though
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Old 6th February 2014, 10:24 AM   #113
edinm is offline edinm  Bosnia and Herzegovina
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Default My DIY build of these excelent speakers

Hello,

I just finished these speakers according to plan. I build enclosure from MDF. Sound is excellent. I enjoy them a lot.

Source path: Squeezebox receiver -> DAC with trofo output -> Pass buffer -> Class D based on IRS 2092 with SMPS 500W.

I highly recommend this design.
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Old 21st March 2015, 10:18 PM   #114
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DOWN! For how long?
http://www.audioheuristics.org/
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Old 11th April 2016, 05:01 PM   #115
DIYBras is offline DIYBras  Brazil
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Default Long time since 2009...

...but this project is actual/current, and a good project survives the time test.

I made a version with the Zaph ZR71 dimensions (by "accident"), and I will check the response but I feel since the baffles are very similar, and since we have drivers with well-behaved integration probably ony a minor modification is needed.
Some impressions (with some conclusiuons but some things all people already knows Click the image to open in full size.Click the image to open in full size. ):
The sound are the most neutral and life-like at same time I have heard to date in a bookshelf with 2 way. For me is difficult to find a system neutral and vivid, resolute at same time; most "neutral" systems are depressingly boring and muffled or sometimes clinical or harsh.
Is clearly perceptible the great DXT dispersion and the very good integration between drivers. At proper volume setting, voices are very convincing when I walk along my home. Since this system have a so linear frequency response, it don't emphasizes certain things in recordings; all are here in correct proportions, except the bass, but this project excels in its own class, revealing the great ER driver linearity. One only notice the SEAS ER distorting with bass when it are making very large excursions...
Maximum clean volume is above average for this project type and again is a testament of driver's low non-linearity.
The DXT tweeter handles very well good power levels even with this low order crossover.
Maybe this remember a little the famous Grimm Audio LS-1 speaker, using same tweeter but other SEAS driver (8", magnesium cone). Reviewers says good things about it. Of course, a very different project but at least one or two targets in common: wide dispersion and exceptional frequency response, along others.

PS.: unfonately I err a little the tweeter diameter, and becomes off center when I attached it (the screws become slight off target). But the speaker recess are in perfect diameter.
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Last edited by DIYBras; 11th April 2016 at 05:06 PM. Reason: additional info
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Old 11th April 2016, 05:12 PM   #116
DIYBras is offline DIYBras  Brazil
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And strangely, about the "presence" sound, I found this "wow" factor before only in some fullranges or speakers with messed response (generally with HF rising response/"tilted up"), but it seems the wide disperion now is my personal preference to "ruler-flat" systems not sounding "flat boring"...
(I checked the response before completion at a test panel and seems to be perfectly OK, but my limited acoustical measurement gig maybe hide some gremlins to sight, and I consider only ~500Hz upwards).
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Old 11th April 2016, 06:09 PM   #117
Juhazi is offline Juhazi  Finland
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I modified my Zaph L18 to MarkK ER18DXT in 2010 - same box and driver cutouts. Just fine, no tuning of xo!
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Old 11th April 2016, 06:31 PM   #118
DIYBras is offline DIYBras  Brazil
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Interesting, very smooth dispersion and very good response even with cabinet change! Thanks for sharing the results.
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Old 25th November 2016, 02:53 AM   #119
RickH is offline RickH  United States
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I am very interested in the ER18DXT. Unfortunately, at present I will not be able to place them 2 feet from the walls, probably 1 foot at the most. My room is approximately 12 feet by 12 feet. Could anyone tell me if placement 1 foot from the wall would be so detrimental that I should look at another design?

If it makes a difference, my current speakers (Tekton Design 8.1T) are a similar design rear-ported two way and they seem fine close to the wall. Thank you

Rick
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Old 25th November 2016, 06:02 AM   #120
Juhazi is offline Juhazi  Finland
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No problem with near-wall placement. Actually it is much better than 3-4ft
Check this http://www.genelec.com/documents/pub...Supplement.pdf
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