Author Topic: Lyngdorf thread  (Read 5295 times)

Offline desray

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Re: Lyngdorf thread
« Reply #90 on: February 05, 2019, 12:26 »
Nice... ;)

Offline sdds

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Re: Lyngdorf thread
« Reply #91 on: February 05, 2019, 15:13 »

Offline kaydee6

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Re: Lyngdorf thread
« Reply #92 on: February 09, 2019, 14:36 »
I have not done any measurements, haven’t had the time. Must have a look at the before and after response. He did mention many other things as well

1. It’s also good practice to measure what RP is doing, after calibration. There may be a need to manually tweak to enhance the system further, so fine tuning is still required. He mentioned the RP does integration of mains and subs very well, there is no need for any distance tweaks or adjustment, but it’s good practice to check and fine tune further

2. He also advise using a higher crossover of subs with mains, somewhere into 160hz to 300hz !! An octave above at least, I went like Wow! Won’t u be able to localise the subs ?? He said no! With the front left right pair, you won’t be able to localise . I believe this is where all the moving bass is happening , bass moving circular motion and up left down and right , when using  the auxiliary bass connection to send stereo bass and LFE to the lyngdorf mp50

3. He mentioned bass is missing on the right area, a lot of energy could be felt at the stacked location, this is before RP. So he said try different options and listen to what u like then decide

4. He mentioned lyndorf corrects for full response 20hz up to 20khz. No Schroeder EQ and no options to altar frequency range to be EQ. It will always EQ full range, but we can bypass RP with a button.

5. On subwoofer distance, he mentioned to put in the distance up to the back of the subs from MLP, the first reflection point off that boundary wall to MLP. He mentioned the algorithm will do the work when it comes to blending the subs and phase and time, as it measures the power response of the speakers and subs and applies filters accordingly.

I saw him nodding his head many times, when demoing the system. He said entire system is well placed, speakers and that the mains and surrounds imaging is good. This is before RP

Can’t wait, will take actual measurements soon and lets see what’s happening with RP

Did you set to the high XO as per Lyngdorf's recommendation? Did he explain in detail why no option to limit correction?

Offline ronildoq

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Re: Lyngdorf thread
« Reply #93 on: February 09, 2019, 19:08 »
My 8 channel Apollon amp will be arriving SG this week, so now tidying up cables etc

My subs are only good up to 200hz... so I’ll try with mains at 120hz, surrounds 140, Atmos 160... that’s for stereo bass redirected from mains

LFE channel will still be at 125hz Low pass filtered

I’ll be doing the system EQ using my approach with REW, manual tweaking of subs before RP. I will write down in detail the steps and how I integrate the entire system

Once that is complete, I’ll let RP do what it does best, integrating mains+surrounds+Atmos with subs and setting the group delays. This is where the RP is very good , TIMING!

Engineer mentioned that RP EQs the system “ Full Range” to maintain the coherence and tonality of the overall system. There is no option to EQ to Schroeder. I believe this is the better approach especially when the RP’s focus for correction is in the time domain, it’s algorithm is able to maintain the naturality of the entire system. You just don’t hear the type of “EQ” sound heard on many systems

I hope some of the EQ steps I’ll detail here will also help to shed some light , approach will be as follows

1. Blending in dual subs phase aligning, then time aligning using the impulse response
2. Gain matching, sub optimisation using Biquad to eliminate peaks and room modes
3. Mains, surrounds and Atmos distance settings using the acoustic timing reference
4. Room perfect equalisation
5. Measuring to confirm results, phase, impulse, spectrogram and fine tuning further for perfect alignment ( chances are nothing much to do)
6. Target curves manipulation to suit taste vide the voicing profile
7. Maximising headroom, absolute SPLs, distortion, compression tests
8. Actual listening

Once I’ve completed the above exercise,I believe I’ll understand the Lyngdorf better and hopefully help all other lyngdorf users here . So far I’ve liked what I heard on the global EQ profile

Offline kaydee6

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Re: Lyngdorf thread
« Reply #94 on: February 09, 2019, 20:49 »
I want to visit you. :)

Offline ronildoq

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Re: Lyngdorf thread
« Reply #95 on: February 12, 2019, 22:37 »
Here are some videos for easy understanding below:

It is very true, exactly what I’m experiencing now, the transient Attack and speed from the 18” seatons is unbelievable ... many more things to share soon as I’ve been discovering many things with this RP, it is brilliant stuff . As it stands now, it is a clear winner for me. Dirac has also taken note on timing and integration trying to improve the algorithm, I believe more updates are coming soon... the bass management on new Dirac will be the first interesting improvement this year . It’s important to note that Dirac and RP both works good in correcting the impulse response, the difference is RP focuses on the timing response whilst Dirac focuses on amplitude response . Do also note that timing response is not the same as time alignment of speakers and subs.

Another thing to note is that during test tones (sounds like some halloweeen Friday the 13th music)  for calibration, sub channels and respective individual channels are working in tandem and active, this is where I think blending of speakers with subs at the Crossover region is seamless

My personal experience as of now:
Room perfect > Dirac live > audyssey XT32 > Audyssey XT > Accueq > YPAO

<a href="http://www.youtube.com/v/RaWNtz3ToyA&fs=1" target="_blank" class="new_win">http://www.youtube.com/v/RaWNtz3ToyA&fs=1</a>

<a href="http://www.youtube.com/v/NpNTWK7c_uA&fs=1" target="_blank" class="new_win">http://www.youtube.com/v/NpNTWK7c_uA&fs=1</a>

<a href="http://www.youtube.com/v/EqwXGBz7TzY&amp;feature=youtu.be&fs=1" target="_blank" class="new_win">http://www.youtube.com/v/EqwXGBz7TzY&amp;feature=youtu.be&fs=1</a>

updated to show calibration video above
« Last Edit: February 14, 2019, 13:46 by ronildoq »

Offline ronildoq

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Re: Lyngdorf thread
« Reply #96 on: February 13, 2019, 09:02 »
One more thing I forgot to mention, to bring out the best for RP, it is not ideal to place the corner bass traps exactly where the subwoofers are placed. Use dihedral mount along the walls, these are way more effective and better sonically , something like this pic below, where I have circled it in black



Corner traps should be placed ideally at opposing trihedral corners where no subwoofers are in place. This is where excessive energy gets accumulated in the room.

Remember, the RP focus is on the timing and response from the first instance of impulse , together with the mains. To bring out the best, this boundary load is highly recommended. Facing the Drivers against the wall is also recommended !

Mains should also be along the largest front wall, straight up placed all the way to the front wall. The same for surround speakers. Ports plugged, if any. Do not worry about speaker boundary interference, that will shift the null to a higher frequency where this will be Handled by RP, the main idea behind placing it straight up to the wall, is for better acoustics providing more output with boundary gain and way less distortion and reflections to tame , this is then easier for RP to EQ and blend the subs and ALL the speakers in the room. When the nulls and dips from mains are all shifted to a higher frequency >300hz, the mains and subs work in tandem, and the speed and Attack from bass is achieved, it’s like small brother woofer from mains pushing the upper mid bass supported by big broher f18 from behind...

Very clever room correction technique

The other I found significant is what’s directly above you, absorption directly above you in your MLP is also preferred, so I don’t use any diffuser directly above MLP

Getting the bass right is so critical , especially in a home environment, this is the most challenging and obvious sound improvement from the lyngdorf to other processors , the bass management is very very good , second to none . Remember, we are not in a cinema, we are at home, and the room perfect nails it absolutely spot on for my home

Also there is no need to pay excessive calibrators fees for those high end processors, it’s just so simple. Run it and everytime it is perfect! Really room perfect indeed

Can’t wait to wrap it up and start enjoying the beautiful sound from the mp50




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Offline ronildoq

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Lyngdorf thread
« Reply #97 on: February 16, 2019, 14:14 »
Apollon 8200c 8 channel hypex Ncore 252 class D  in the house. This will support all 8 channels Atmos speakers, all crossed at 160hz xo on the Lyngdorf , seatons 18” will be playing stereo bass up to 160hz ...







Before that took all the necessary measurements using the acoustic timing reference ... I’ll share soon

Meantime now tidying up and labelling all the cables



Need to finish tidying up all the cables, midnight will run room perfect

Oh yea, room perfect runs at 85db, using -20dbfs “Friday the 13th” test tones , so it’s 10db louder... unlike audyssey and Dirac test tones that uses -30dbfs and calibrates at 75db




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« Last Edit: February 16, 2019, 14:18 by ronildoq »