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Pro Amp vs. Plate Amp
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Old 11th May 2021, 04:48 AM   #41
academia50 is offline academia50  Argentina
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Originally Posted by waxx View Post
.............. My MLTL (the black one) goes from 20kHz to 32Hz flat within 10dB with a 6" driver, ............
waxx , Is this your design ?

Designing Mass-Loaded Transmission Line (MLTL) Speakers – Neurochrome
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Old 11th May 2021, 07:18 AM   #42
waxx is offline waxx  Belgium
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No, but t’s similar. It uses an other driver altough, the alpair 10p, i use the CHN110
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Old 11th May 2021, 02:32 PM   #43
audiobomber is offline audiobomber  Canada
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Originally Posted by waxx View Post
From my experience, they don't always show on the frequency response, only the big ones does. The smaller ones that smear the sound are not easy to spot on a frequency spectrum, and they are often only visible when you really measure them.
I measure with a Umik1 at the listening seat. I use REW on the left and right channels separately, then playing together. Applying auto-EQ adds about a dozen filters from 20 to 100 Hz. I add one custom filter at 25Hz and a house curve. There's no way I could get this kind of accuracy without auto-EQ.


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Originally Posted by waxx View Post
First i also did not took much attention to it, but when i started to do it, my speakers started to sound a lot better with the same drivers in the same box with more or less the same crossover frequency and slopes. But i'm rather picky on the crossovers, the often necesairy evil... That's why i still prefer fullrange drivers, or at least a waw setup where the crossover is very low. You may be not that picky.
I can assure you, I am very picky, especially in Covid times, when I've been spending several hours a day in critical listening mode. I've made many improvements on the computer audio and network sides in the past few months, to the point where computer audio now surpasses my CD transport and previous turntable systems.

I do enjoy full-range qualities. I have a pair of Raw-1F speakers in a secondary system. They use CSS FR125S drivers in a ported 7L box. I have a pair of Jordan JX92S drivers and 7L box which I expect to use sealed, or possibly with the Marchand passive line-level crossover and small sub for my office. I just need to get the baffle cut. I have a four CSS WR125ST 16-ohm drivers two WR125S drivers and a pair of Usher tweeters for a future project, but they've been waiting a long, long time.

I brought the Raw-1F downstairs to the main system for a quick listen and was very pleased at how well the Bamberg MTM stood up to the full-ranger's strengths, with of course the multi-way's extended frequency response. If we eventually move to an apartment, I could live with just the little full-range system.
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Last edited by audiobomber; 11th May 2021 at 02:45 PM.
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Old 11th May 2021, 03:25 PM   #44
academia50 is offline academia50  Argentina
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Originally Posted by waxx View Post
No, but t’s similar. It uses an other driver altough, the alpair 10p, i use the CHN110

Can you attach the measurements of the axis FR vs. SPL? Only for curiosity.
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Old 11th May 2021, 03:41 PM   #45
academia50 is offline academia50  Argentina
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Originally Posted by audiobomber View Post
...............
I can assure you, I am very picky,.........

Yes, you are more of a perfectionist than a picky !
I imagine that if you attend a symphonic music concert and someone coughs near you, you get up from the theater and leave ...
Or, like it happened to me, an idiot answered his cell phone while the musicians played! they will not believe it, it was in our Teatro Colón, and the director said to the subject (who was near him, in the stalls): "take your call calmly, we can wait."

Teatro Colon - Wikipedia
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Last edited by academia50; 11th May 2021 at 03:45 PM.
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Old 11th May 2021, 06:15 PM   #46
audiobomber is offline audiobomber  Canada
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Originally Posted by academia50 View Post
I imagine that if you attend a symphonic music concert and someone coughs near you, you get up from the theater and leave ...
Or, like it happened to me, an idiot answered his cell phone while the musicians played! they will not believe it, it was in our Teatro Colón, and the director said to the subject (who was near him, in the stalls): "take your call calmly, we can wait."

Teatro Colon - Wikipedia
LOL! Good for the Director. I love the sarcasm.
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