[mikela8]

The depth of my NoRes is 4.25 inches.  There's plenty of clearance for the driver motion.


By the way, your crossovers are very impressive.

Thanks!  Your wiring diagrams and cutout pics made things much easier and were extremely useful.

Frederick did a great job on the crossovers...highly recommended.

[mikela8]

Here is my system with most of the diy acoustic treatments in place.

[Early B.]

Tell us more. How do they sound? What electronics are you running with them? Also, looks like you have a vaulted ceiling. What are the room dimensions?

[NXSTUDIO-DRUMMER]

Here is my system with most of the diy acoustic treatments in place.

Nice arrangement! 

Tip: Experiment with placing a heavy blanket over the TV screen. This will benefit the soundstage depth and 3D imaging. It should tone down any brightnesss or harshness characteristics, if your dealing with that kind of issue.

If your handy, this would look really cool in your room. Have a temporary TV diffusor cover, like this example below. (Although I would fabricate it using light materials, for load bearing puroposes. Simply place over tv for critical listening, remove afterwards.

[Danny Richie]

Man, those look nice.

[mikela8]

Tell us more. How do they sound? What electronics are you running with them? Also, looks like you have a vaulted ceiling. What are the room dimensions?

I have a Mac Mini M2 with Bacch4mac (Audiophile version), Topping B200 amps, A90D preamp and D90 III Discrete DAC.  I have a virtual Roon server running on my Unraid server.  Roon is controlled via an iPad.   Room is approximately 19' wide by 20' deep but opens to a hallway and stairwell in the back.  Ceiling is about 10' and extends to the second floor ceiling.  I am not using Bacch4mac head-tracking.  I find the sweet spot wide enough without it.  The B4M uses in ear microphones to do a right and left channel sweeps for calibration.  I first ran a calibration without the No Rez, subs or room treatments just to get an initial listen.   Unfortunately, I overwrote the graph.  It showed that the room correction response required only a small amount of adjustment.  Later, I hooked up the subs (still no No Rez) and one of the folks from my home theater group stopped by for a listen.  He thought they sounded "world class" even without room treatments and No Rez.  Installing the No Rez and subsequently the room treatments brought increased coherence to the sound.  My son asked me if I increased the bass, after hearing them with the room treatments installed.

My point of comparison is with my diy Jim Holtz' Statements which were previously installed in this exact same configuration sans sub.  In my opinion, the NX-Tremes out perform the Statements in every regard.  Perhaps less so in the highs and upper mid-range.  They are dramatically different in the lower registers.  In all fairness, the Statements are using box mounted Dayton 8" drivers for the woofers.  The NX-Tremes have an integrated sound from top to bottom.  B4M has a level matched “Bypass” selection which passes plain stereo.  The imaging in stereo is amazing although you can tell the sound is originating at the speaker.  With B4M engaged, imaging is more holographic in nature and it is impossible to tell where the sound originates.  The speakers completely disappear.   I use Tool’s “Chocolate Chip Trip” track to assess imaging.  This is the clearest that I have heard the drums circling behind my head.
 
I consider these to be my end game loudspeakers for stereo playback.

Measurements with subs/acoustic treatments without room corretion:



Measurements with room correction and Olive target curve:

[mikela8]

Nice arrangement! 

Tip: Experiment with placing a heavy blanket over the TV screen. This will benefit the soundstage depth and 3D imaging. It should tone down any brightnesss or harshness characteristics, if your dealing with that kind of issue.

Thanks!  This is a really great idea.  I was all set to live with it as is.  Given that I am using B4M, absorption would be the play.  My panels are 2 Knauf ECOS rigid fiber boards lightly glued together to make 4" thick panels.  The bass traps are 6".  I think I may create several 2" panels with hooks that connect to the top of the TV.  Of course this means I will need to remote into the iPad to perform the calibration but that is not a problem.

[mikela8]

Man, those look nice.

I have dabbled in speaker design for years and have always wanted an open baffle speaker.  Your detailed discussion of the design process heavily swayed me toward these.  I am simply astonished each time I initially press the play button.  Definitely one of the best parts of my day.  Thanks for a great design!

[nlitworld]

Mike, that all looks fantastic. Super pumped for you on how it all turned out. And yes, Chocolate Chip Trip is definitely a good song for demo. Also look up Duende from Bozzio Leven Stevens. Super pinpoint for imaging where each drum piece is placed. Good album to listen to, but excellent for system testing. 

[Glady86]

I’d be trying to figure out the big hole in the response centered around 8000hz. Though maybe not much of a sound quality issue that high up in the range. My NX Oticas don’t have that, they are pretty flat with gentle slope from 500 to 16000hz without any EQ. I had suck out hole centered at 250hz but improved it with speaker positioning and room treatments.

[mikela8]

I’d be trying to figure out the big hole in the response centered around 8000hz. Though maybe not much of a sound quality issue that high up in the range. My NX Oticas don’t have that, they are pretty flat with gentle slope from 500 to 16000hz without any EQ. I had suck out hole centered at 250hz but improved it with speaker positioning and room treatments.

B4M uses in ear microphones.  In the graph, "Low Order Pinna Resp." (green area) is taking your head and torso into effect and "High Order Pinna Resp." (orange area) is taking the shape of your ear into account.  It is a typical response and your NX-Oticas measurements would be similar.  B4M does gentle adjustments in these two areas while doing significant corrections in the bass region.  The correction filter response can be seen in the second photo.  A normal microphone placed in open air would produce the flat response you are accustomed to seeing.

[mikela8]

Mike, that all looks fantastic. Super pumped for you on how it all turned out. And yes, Chocolate Chip Trip is definitely a good song for demo. Also look up Duende from Bozzio Leven Stevens. Super pinpoint for imaging where each drum piece is placed. Good album to listen to, but excellent for system testing. 

Just finished listening to Duende.  Excellent suggestion and have added it to my Favorites.  If you like percussion and want to give your planar magnetic tweeters a work out try "Junkyard Entrance" by Marilyn Mazur.