** I ran this by Amir and Thomas and they were OK with me posting this here since we all are fans of as much data as we can get and I will be sharing all my reviews here**
As many of you probably know by now, I run a review/test site. I've been posting about it a bit over in my thread (here). I quit testing for a number of years but recently started back again. I used to use Klippel products for my tests so I reached out to them again.
Well, I got a quote from them this morning. As expected, however, it’s not cheap. Regardless, I’m moving forward and will be sending payment shortly. But I would really appreciate any donations from the community that I can get to help me offset those costs and, namely, to help fund some of the other things I would like to purchase to help me make my testing more efficient and accurate (like building an automated turntable or the like, using a DIY CNC to help cut baffle templates for drive unit testing, purchasing a high-SPL capable microphone for high output distortion testing, etc).
If you don’t mind helping out, you can use the link below to contribute to via PayPal (they take 3%, I’m OK with that):
https://www.erinsaudiocorner.com/contribute/
One of my car audio buddies also set up this GoFundMe page here which I thought was wicked cool of him to do so if you'd rather support that way than through PayPal here's the link:
https://www.gofundme.com/f/help-har...m=copy_link-tip&utm_campaign=p_cp+share-sheet
Edit:
Someone asked what I'd be doing that's different from what Amir is providing and to address that, I made this post:
https://www.audiosciencereview.com/...site-using-klippel-products.11761/post-343711
As I've already stated, I am not begging for money. I simply enjoy this stuff and my only net gain is potentially getting to play with some cool toys now and again if a member loans them for testing. At this point, I'm thankful for any help I can get but I knew full well what I was getting in to when I started down this path so I'm not about to whine if people don't kick in for it. Just know that if you are able to help out that it's going to a good cause and is absolutely appreciated.
As many of you probably know by now, I run a review/test site. I've been posting about it a bit over in my thread (here). I quit testing for a number of years but recently started back again. I used to use Klippel products for my tests so I reached out to them again.
Well, I got a quote from them this morning. As expected, however, it’s not cheap. Regardless, I’m moving forward and will be sending payment shortly. But I would really appreciate any donations from the community that I can get to help me offset those costs and, namely, to help fund some of the other things I would like to purchase to help me make my testing more efficient and accurate (like building an automated turntable or the like, using a DIY CNC to help cut baffle templates for drive unit testing, purchasing a high-SPL capable microphone for high output distortion testing, etc).
If you don’t mind helping out, you can use the link below to contribute to via PayPal (they take 3%, I’m OK with that):
https://www.erinsaudiocorner.com/contribute/
One of my car audio buddies also set up this GoFundMe page here which I thought was wicked cool of him to do so if you'd rather support that way than through PayPal here's the link:
https://www.gofundme.com/f/help-har...m=copy_link-tip&utm_campaign=p_cp+share-sheet
Edit:
Someone asked what I'd be doing that's different from what Amir is providing and to address that, I made this post:
https://www.audiosciencereview.com/...site-using-klippel-products.11761/post-343711
That's a fair question.
First off let me state a few things:
I've been using Klippel products since 2010. I quit testing for a number of years. You can read about that here.
I am not looking to "compete" with Amir. I am simply trying to continue doing what I have been doing for years. Amir's focus is on loudspeaker measurement. I don't have a 'focus', per se. My goal is to provide as much data as I can on everything from the loudspeaker to the raw drive units that make them up. No one else on the internet is providing raw data for drive units as comprehensively as I am. I can absolutely guarantee no one is providing large signal analysis to the public, either. No one. I know this because some companies have come to me to ask if I'll do it for them (and I do not) because they don't want to pay Warkwyn or Red Rock Acoustics to do it for them. Between myself and Amir I think we can do a lot of damage. Well, not literally, unless you guys want to send me speakers with the 'OK' to test them until they explode.
Getting on to my "project", let me lay out the similarities of what Amir and I are doing.
Amir:
Loudspeaker testing of:
- Full CEA-2034 capability from a fully automated process
- High resolution and approximately/better than anechoic
- Harmonic Distortion
- CSD
Me:
Loudspeaker testing of:
- CEA-2034 capability from a manual/semi-automated process (using TRF Pro module and my own MATLAB scripts)
- Quasi-anechoic (nearfield and farfield stitching) (using TRF Pro module)
- Hamonic Distortion (using TRF Pro module)
- CSD (using TRF Pro module)
Those are the similarities. And that's where it ends. Now, this is some of what I'll be doing that Amir is currently not capable of providing:
- IMD (using DIS Pro Module)
- Max SPL (using the Tone-Burst Module)
- Loudspeaker raw drive unit testing. (using the below methods)
- Pulling the drive units from DUTs and testing them to identify issues via the methods below
- Testing drive units that you can purchase from Parts-Express, Madisound, etc using some of the above and the below
- Thiele-Small Parameters (using LPM module)
- Large signal parameters (using LSI module)
- Linear Xmax using a laser for maximum accuracy (using LSI module)
- Various 'studies'
- Mostly TBD but for example, I did a study on the effect of the midrange cone's movement on the tweeter frequency response in this Kef Q100
- How do the various distortion components effect our hearing (using the SIM-AUR module; something no one else is doing, I'll add)
- "Virtual Demo": Speakers will be set up in my room and I will play a sample of music through them while recording the sound via a binaural microphone setup at the seated position. All tests will target the same average SPL at a listening distance of 6 to 8 feet. This "demo" is intended to give listeners an idea of the sound characteristics of a speaker. It will absolutely not substitute someone demoing the speakers in their own room but it should give them an idea of the characteristics such as directivity, tonality, etc.
A fine example of some of the above can be found in my review of the Rythmik FG12 subwoofer. To brag a bit, I can honestly say that I have never seen a more thorough or qualitative review of any loudspeaker by anyone published for all to see to date. No one has taken a subwoofer and provided data on the raw driver (including T/S parameters, large-signal (again, no one has the LSI that is posting freely) and FR/HD data), provided objective data on the various settings as well as a writeup explaining the benefits of these in the manner I have. I'm not one to brag, but since you asked, that's where I feel I have done far more than anyone to date. I plan to conduct future tests in the same manner.
In short, I've got a lot of tools manufacturers don't have. And I've got the passion and dedication to provide data that you guys didn't even know you needed until you got it. And again, I am not competing with anything Amir does. More data is good for everyone.
- Erin
As I've already stated, I am not begging for money. I simply enjoy this stuff and my only net gain is potentially getting to play with some cool toys now and again if a member loans them for testing. At this point, I'm thankful for any help I can get but I knew full well what I was getting in to when I started down this path so I'm not about to whine if people don't kick in for it. Just know that if you are able to help out that it's going to a good cause and is absolutely appreciated.
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