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erinh
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- erinh
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Comments
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worth noting is that the 2010 spec @dcibel linked above is free. But the same spec but with the "CEA" moniker is $92. I didn't even know this until I went asking if anyone could verify something for me because I didn't want to pay $92 fo…
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(Quote) The spec I talk about in that review is in regards to subwoofer testing. There is a CEA-2010-A and then a CEA-2010-B (which is also CTA-2010-B, since CEA/CTA merged). It's confusing. At any rate, both the standards have their own subwoofe…
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(Quote) I somehow missed this. As indicated above, the one I tested came from one of Rick Craig's speakers. But he sent me the pair to review. These speakers are legit.
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(Image)
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Just in case you folks are interested, I made a video review here: https://youtu.be/a_5jeEoTW0M But, I also finally finished the review these come from. Rick Craig's Purezza speaker: https://www.erinsaudiocorner.com/loudspeakers/selah_audio_purezz…
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(Quote) FWIW, PE is selling a replacement driver for the 901 here: https://www.parts-express.com/replacement-speaker-driver-for-bose-901-4-1-2-1-ohm--290-922 Look at its FR.... it's uuuuugly.
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Not sure if you guys are interested but I also am trying to create YouTube video reviews where I use my data to discuss the subjective and objective performance. Here's the one I made for this speaker: https://youtu.be/SRmJo3y5JQI
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(Quote) Yes. I mentioned the "thin plastic" part above... it would be more of a "let's see how this changes things". I'm not advising anyone run out and do that on their speakers. But, if making that rectangle in to a square i…
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(Quote) I thought it was quite clear: this speaker holds a lot of value either in DIY form or purchased complete form. You took my quote wrong. It wasn't at all a "you can't DIY better for the price". It wasn't a challenge to the DIY c…
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(Quote) You know where to find me. ;)
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(Quote) And just to be clear, I said to reduce the height to make it match the width (maybe by adding a very thin piece of plastic or something to the inside of the faceplate) in order to decrease the radiating dimension vertically which would push …
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(Quote) I discuss this in the review. "Additionally, the RAAL is quite directional, vertically, due to its tall orientation. Therefore, it “beams” at approximately the frequency that equals the radiating height (70mm; 2.75 inches). Using the sp…
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(Quote) I mentioned it in the review: "from what I can tell, the crossover point between the woofer and the midrange is about 550Hz." I'm basing this on the nearfield plot: (Image)
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(Quote) I mean, take the rectangular radiating area of the RAAL and make it a square. That way the directivity in both horizontal and vertical are the same as opposed to having a very wide radiating area horizontally but a very narrow one verticall…
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I know this is a DIY site but you guys may like this latest test I did on this little speaker. For $90, the DIY community can do better but it's got it's moments. https://www.erinsaudiocorner.com/loudspeakers/neumi_bs5/
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Also, I just completed a review of the Jamo S807 speakers and wanted to share it with you guys. It's pretty enlightening... and quite sad to see how far a well-regarded name brand has fallen since Klipsch bought them. :( https://www.erinsaudiocor…
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(Quote) Interesting and cool! I am flattered. Though, I was looking forward to having a monopoly on my plot design so I could get some recognition for it for a bit. haha. Would it be petty of me to ask for a reference to my site for th…
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FINALLY!!!!! I have finally completed my review of the Buchardt S400. I have spent countless hours... literally months worth of working through test methods and configurations, writing MATLAB scripts to post-process the data... it's been crazy. …
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[QUOTE=hardisj]I had someone PM me to ask if I modeled diffraction in the above NF summed response results. I think it's a worthwile question so I'll share my reply here as well: I did not. [/QUOTE] (Image) Ughhhh.... Ok. Curiosity g…
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It was asked on DIYA so I am sharing it here... [QUOTE]Sooo, to me, the main take-home message of your tests is that the ground-plane method easily yields consistent results at low frequencies, up to 500 Hz or so. Normal indoor gated measurement…
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Here's some information for those of you who may want to conduct their own measurements with the ground plane method. (@Kornbread) I've mentioned it numerous times but in case someone didn't catch it or doesn't already know: when you measure a …
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I am going to try to recap everything I have learned thus far. As we know by now, there are many ways to measure a speaker's response. All with their own pros and cons. My efforts reveal that a 2-pi ground plane measurement can give the …
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Okay. I used my script to run the horizontal polars. Looks pretty darn good. I'll have to clean up the script but I am happy with how it works so far. I have it set up to where I point Matlab at the directory and it prompts me for the stitch …
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After sleeping on this I have decided that merging Low Frequency with High Frequency data (similar to NF/FF merging) is the only way I will be able to do this and provide the data to the accuracy I desire in most cases. That means I will have to me…
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(Quote) good timing! Let me update and then I'll answer this question shortly...
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At this point I have the following options if I want high resolution and accuracy:If I want to avoid merging NF with FF measurements then I go with the ground plane measurements in the driveway and just deal with the heat, the neighbors and other en…
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Since I was in my backyard I thought ... might as well go ahead and throw the speaker back up on the platform and test there to see how the ground plane garage measurement compares to the 4pi "free space" measurement at 36 inches. After a…
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At this point I am pretty sure most who were paying attention have probably "checked out" at this point in the whole "how am I going to measure speakers" discussion but I'm going to make one final post on the topic because I had …
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(Quote) 30hz is about about 33 milliseconds. A single ms is about 13.5 inches. So, that's about 37 feet. I can't say how the slope alters the result. I can just guess that it would... but how far away the slope starts from the point wher…
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(Quote) Well, you'd have to rotate the mic about the speaker. Turning the mic would just give you a response based on the mic's off-axis response which isn't the same as the response based on the speaker's off-axis response. And moving t…