ttocs
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I always have a wonderful time, wherever I am, whomever I'm with. (Elwood P Dowd)
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Post by ttocs on Aug 8, 2020 22:27:25 GMT -5
Ahhh, so I don't feel so bad then. I just compared the Krell vs the M-125 and get this result with no correction driving the stats, no Dirac, just XMC-2, amps and Right speaker, using REW psychoacoustic smoothing. The M-125 tube amp is orange. What other color would it be? It's a -14dB difference 20khz, and a -4dB difference @10khz, so the tubes lose 10dB over this range. Sorry to hijack Bill. Just had never compared before and your curve tossed me over the edge, so I just had to do a comparo. Nevermind, 140db range on the graph explains it all😎 I'm a bit confused as to what is explained by the range. Please enlighten. Also, garbulky struck a chord when mentioned DACs. The DACs in my new XMC-2 are different from what was in my XMC-1. hmmmm, this is something I hadn't thought about. Since getting the XMC-2 early this year I've only used the tube amps, so it's worth a gander to see how solid state compares vs tubes with the new DACs. It's a high bar to hurdle however, being that tubes seem to bring an extraordinary realism to the soundstage. It'll be a fun experiment! |
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Post by foggy1956 on Aug 9, 2020 6:05:43 GMT -5
Nevermind, 140db range on the graph explains it all😎 I'm a bit confused as to what is explained by the range. Please enlighten. Also, garbulky struck a chord when mentioned DACs. The DACs in my new XMC-2 are different from what was in my XMC-1. hmmmm, this is something I hadn't thought about. Since getting the XMC-2 early this year I've only used the tube amps, so it's worth a gander to see how solid state compares vs tubes with the new DACs. It's a high bar to hurdle however, being that tubes seem to bring an extraordinary realism to the soundstage. It'll be a fun experiment! The vertical portion of the graph shows the db range, shrinking that to show only the levels of your sweep gives a better representation. |
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ttocs
Global Moderator
I always have a wonderful time, wherever I am, whomever I'm with. (Elwood P Dowd)
Posts: 8,162
Member is Online
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Post by ttocs on Aug 9, 2020 10:44:59 GMT -5
The vertical portion of the graph shows the db range, shrinking that to show only the levels of your sweep gives a better representation. I replaced the image with a lumpy one for more accuracy. |
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Post by foggy1956 on Aug 9, 2020 12:24:15 GMT -5
The vertical portion of the graph shows the db range, shrinking that to show only the levels of your sweep gives a better representation. I replaced the image with a lumpy one for more accuracy. How about maybe running it 30-80 or so? |
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Post by foggy1956 on Aug 9, 2020 12:27:23 GMT -5
Ttocs, while we're at it, here's my uncorrected response for the PBN Montana EPS with the MC275s. Roll off like yours, no dsp needed. Powerful bass, too much , here is where dsp in the bass is efffective to flatten that right out. The PBNs are all high $ Scanspeak Revelator drivers, so you can see how nice Maggies are in the first graph. And these list for double the Maggie 3s. IMO, in the right room Maggies are the best buy in Audio. And that soundstage! View AttachmentHow about repost with a 30-70 db scale? |
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Post by foggy1956 on Aug 9, 2020 12:28:03 GMT -5
The vertical portion of the graph shows the db range, shrinking that to show only the levels of your sweep gives a better representation. I replaced the image with a lumpy one for more accuracy. Apologies, was referencing audiobills graph |
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Post by audiobill on Aug 9, 2020 12:45:40 GMT -5
 Sure, here's the average in-room response for both speakers on a 30-70db graph, with my target curve superimposed. Target level is 47db as determined by REW. Same tight response to target. |
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Post by foggy1956 on Aug 9, 2020 13:06:22 GMT -5
View AttachmentSure, here's the average in-room response for both speakers on a 30-70db graph, with my target curve superimposed. Target level is 47db as determined by REW. Same tight response to target. Thank you, looked like a psychoacoustic filter. |
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