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Full Range TC9 Line Array CNC Cabinet
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Old 14th September 2017, 08:09 AM   #751
fluid is offline fluid  Australia
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Quote:
Originally Posted by perceval View Post
Yep, I think I have seen a similar curve before...

Thanks for sharing. fluid.

And enjoy the listening!
There is a reason it is similar. I tested with a Flat target in DRC and then used PEQ by ear in Jriver until I got something that I was happy with. Guess what it looked remarkably like the 1dB/Octave slope.

This is the Left Right Average compared to my preferred target

Full Range TC9 Line Array CNC Cabinet-lr-target-jpg

This is the preferred target against the 1dB fall off slope. I like at bit more in the 200Hz range, a bit less 500 to 800Hz and a slight knee at 2-3K, not very different though and I listened to the 1dB curve for a long time because it was hard to find fault with.

Full Range TC9 Line Array CNC Cabinet-target-comp-jpg
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File Type: jpg Target Comp.jpg (82.9 KB, 316 views)
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Old 14th September 2017, 08:16 AM   #752
fluid is offline fluid  Australia
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Originally Posted by wesayso View Post
Keep up the good work! Listen, listen some more and let that soak in.
If you like what you have: make a good backup!
Then on to little controllable investigations to see what you can improve on.
To get ahead, little steps will get you there. Take the time to live with it to know if it's a move in the right direction.

Above all: enjoy and have fun with it! Try it with a movie sometime in the near future..
Ha Ha, I'll send you an email with how I did it so I will have you as a redundant off site backup for the process

There are a few more things to try for curiosities sake but I am tending to get different or worse results rather than better at this point.

I still have the First One Amp to set up and test and another DAC to try. When I have found my favourite combination of those the other tweaks might come out. I still need to read through all your emails again....

The last phase tweak got me back some of the bass impact without it being wild but I do feel that is an area that I might want to work on as the correction could well be too polite some times. So there probably is no end to the tweaking......
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Old 14th September 2017, 08:32 AM   #753
wesayso is offline wesayso  Netherlands
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Sorry for al my long winded emails . It might take a while. No wonder that thread of mine got to be that long!

Now where did I see that shape before...
Click the image to open in full size.

You seem to like it just a bit warm, just like me...

Any hair raising shiver down your spine yet?
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Last edited by wesayso; 14th September 2017 at 08:45 AM.
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Old 14th September 2017, 09:37 AM   #754
fluid is offline fluid  Australia
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Quote:
Originally Posted by wesayso View Post
Sorry for al my long winded emails . It might take a while. No wonder that thread of mine got to be that long!

You seem to like it just a bit warm, just like me...

Any hair raising shiver down your spine yet?
No need to be sorry they are a treasure trove of good information it just seems unfair for me to ask it of you again when I can find it for myself with a bit of effort

Yep I tried to make a curve like the Toole one but I didn't like it as much as the blue one. Don't now about shivers but I have heard some really good stuff, Diana Krall's Live in Paris is sounding very good and Giant Steps by Buddy Rich is fantastic. Get Lucky is really good and the bass drum and low toms in Steve Earl's Copperhead Road is very atmospheric.

Full Range TC9 Line Array CNC Cabinet-curve-compare-jpg
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Old 14th September 2017, 09:43 AM   #755
BYRTT is offline BYRTT  Denmark
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Full Range TC9 Line Array CNC Cabinet
Quote:
Originally Posted by fluid View Post
Thanks Byrtt, I don't think I can be bothered to mess with APL_TDA at the moment and the next Beta of REW should have a function that will make the graphs look more similar.

For now this is the Spectrogram of the Left and Right Averaged, there are some issues but overall for no treatment I am happy. You can see the peak energy curve is a little wiggly below 200Hz, but it is a whole lot better looking than without correction.

Click the image to open in full size.

Good point to wait for REW get new feature of similarity had almost forgot about that info myself, your current curve looks simply great and in my eyes far over average accounting result is at listening position.
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Old 14th September 2017, 09:52 AM   #756
fluid is offline fluid  Australia
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It is at the listening position but averaged so in that sense it isn't comparable to Wesayso's but I like to think it is close to what I am hearing with my brain filtering out the worst of the room
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Old 14th September 2017, 10:05 AM   #757
BYRTT is offline BYRTT  Denmark
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Quote:
Originally Posted by wesayso View Post
...You seem to like it just a bit warm, just like me...
fluid is general warm

Full Range TC9 Line Array CNC Cabinet-2002-png


Looking at wavelet could maybe tell about the preference a bit less 500 to 800Hz.
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Last edited by BYRTT; 14th September 2017 at 10:08 AM.
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Old 14th September 2017, 12:52 PM   #758
xrk971 is online now xrk971  United States
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I haven't been on this thread in a while and looks like Fluid is well on his way to a world class implementation not unlike Wesayso's towers. Nice work Fluid!

I have been using Focusrite DAC both Solo 2G and 2i4 2G and really like the sound. I took the 2i4 to a Head-FI audio meet and many people were unaware that it could be used as a playback DAC. They said it's sound was up there among the best compared to much more expensive boutique DACs at the meeting. We were listening with high end headphone amps and high end headphones so details were revealed. But in general, people used to paying $1200 for a DAC were very pleasantly surprised at the sound quality. Considering it was USB powered - the noise was very low. I measured at -130dB. Better than most power supplies can muster.

One neat thing with 2i4 is it has 4 channels out. So maybe I can use it to drive active 2 way setup like a miniDSP? But with advantage of having a nice DAC capable of 192kHz and 24bit playback. Oh it also records music at that speed.

My only struggle is making Jriver play nice with my Focusrite. I had issues where Jriver appeared to go commando on me and take over stuff in background and I could not get decent FFT measurement of my amps using REW. But probably an issue of USB drivers.
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Old 14th September 2017, 01:12 PM   #759
fluid is offline fluid  Australia
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Quote:
Originally Posted by BYRTT View Post
fluid is general warm
Thanks Byrtt

Quote:
Looking at wavelet could maybe tell about the preference a bit less 500 to 800Hz.
120 Hz, 500 to 800 and 2.7K are where the reflections do some damage. But looking at the Spectrogram lowering the 500 to 600Hz region a little more might be worthwhile to try.

Quote:
Originally Posted by xrk971 View Post
Nice work Fluid!
Thanks, progress has slowed significantly at this point because it is now difficult to get an improvement.

Quote:
I have been using Focusrite DAC both Solo 2G and 2i4 2G and really like the sound.
My Focusrite sounds pretty good too.

Quote:
My only struggle is making Jriver play nice with my Focusrite. I had issues where Jriver appeared to go commando on me and take over stuff in background and I could not get decent FFT measurement of my amps using REW. But probably an issue of USB drivers.
Not sure what that could be but the ASIO drivers work best for me. Does your Focusrite have MixControl software or just drivers? If you have Windows 10 Creators Edition you could test out the native USB2 driver to see if that works with your interface.

ASIO drivers and REW work well for me as well as Java drivers but the MixControl Software is hard to get set properly and that has had me scratching my head a few times trying to work it out.

How have you set it up in the past to try and measure your amps?

Last edited by fluid; 14th September 2017 at 01:17 PM.
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Old 14th September 2017, 01:13 PM   #760
zman01 is online now zman01  Bangladesh
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Full Range TC9 Line Array CNC Cabinet
Great work Fluid, and thanks for sharing the updates, keep 'em coming.

+1 on X's comments on the Focusrite. Got myself a Focusrite Solo 2 , and have been very happy with it.
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