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It's really disappointing to see all the red herrings, and even an insulting tone, from someone like Amir. And to call an article showing numerous detailed graphs "reference free" is even sillier. Amir has lumped together three different rooms, trying to apply the response and waterfall graphs...

LOL, not to make a joke out of it, but this guy is a "mastering engineer" apparently: http://cheapaudiomastering.com/

I'm quite familiar with Floyd's work. I know quite a few mastering engineers, and not one of them prefers untreated early reflections. And just because someone claims to be a mastering engineer doesn't mean they're sophisticated listeners. I'll be glad to address your other points, but first...

Amir, I hate to say this but you are so far behind the curve I don't even know where to begin. You need to read my Bass Trap Myths article and also my Final Dirac Report including the two earlier test articles linked within. So I'll hit the high points here, and you can read my articles and...

Yes, unsophisticated listeners who aren't used to the clarity of reflection free listening might find the improvement unfamiliar and even jarring at first. But in the world of audio professionals - people who create and listen to music for a living - early reflections are not considered...

I'm really surprised to hear you say that, Amir. Have you never seen the response and ringing in an untreated room? My Early Reflections article above shows how terribly skewed mids and highs are when the specific reflection points aren't treated. And carpet addresses only one of those four...

I assure you that treating early reflections is a Good Thing in all rooms where music is played: Early Reflections But there's more to room treatment than just absorbing reflections. You also need bass traps. This short article explains what acoustic treatment does, and why it's more...

Thanks very much guys. Gary, I considered selling this but it would require a lot of effort to correct a few minor problems, make new boards, etc. If it could test more than wires it would be a viable product. I'm glad to share the complete schematic with you (or anyone else here) if you email...

Thanks guys.

I see the conversation has shifted toward why our rooms sound different from a concert hall. You can get close to a concert hall with a good surround mix that has all the distant ambience embedded in the track. Of course, then you need a room with enough treatment to kill your own room's...

Folks, the requirements for a high quality listening room are the same as for a high quality mixing and mastering room. Either you want to hear things clearly with minimal artifacts or you don't. If your spouse objects to the appearance of the necessary treatment, either get a dedicated room or...

^^^ I see your comment, and you did a good job. The problem for Gene is he has no real talent for audio and music, and he can't arrive at a conclusion on his own. So all he can do is pick an expert to follow - in this case Floyd Toole - and oppose any other viewpoint. Thanks for mentioning my...

I have seen (and posted to) this thread, but I didn't realize it's still going! Of course I have a few things to offer. Also, Hi Kal, nice to see you again! LOL, yes, what a load of bullshit. Rather than just assess the wires, let's confuse things as much as possible by diluting the test with...

The real problem with Paul's "proof" that his products work is that he never shows a reduction in noise and hum etc at the output of the connected audio equipment. That's all that matters! If his $5,000 "power plant" nonsense reduces noise riding on the AC line from 3 millivolts to 0.3...

LOL, I knew something was up because I just got several dozen emails with comments people left on my Null Tester video. Paul sure does embarrass himself. It's obvious he knows that he's lying and being disingenuous. Then again, he says he likes and agree with Steve Guttenberg, and Steve is about...

Thanks Don. I turned 70 last month and I'm busier than ever. But most of what I do is fun, like building this Null Tester device and making the video, so I don't mind. I'm not posting much in forums anymore, but I'm active on Facebook.

Totally awesome, I had no idea! I just tried it and it works. Thanks!

Thanks very much to Amir for posting this, and to the others for all the great replies. I'll address only one reply for now: Yes! I also devised a test setup to assess triboelectric noise, and I had planned to include that in my video. But the video is already too long, so I'll probably make a...

I'll tread lightly here because I'm too busy to get into another audio forum sinkhole. :D But this caught my attention: I just bought half a dozen of these OPA1611 op-amps: http://www.ti.com/product/OPA1611 They're expensive at $5 each in small quantities, but the specs are astonishing at...

Thanks Tom for carrying the torch. I'll add only one point about the "loudness war" issue. That isn't about normalizing music so the loudest peak hits at 0 dBFS (or close to it). Rather, it's about using compression and other processes to make the average level louder. So soft parts are raised...