Lets see your O.B. speakers....!

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Jstower

  • Jr. Member
  • Posts: 30
Re: Lets see your O.B. speakers....!
« Reply #480 on: 16 Dec 2020, 02:19 pm »
What drivers are you using in your setup..?
 :popcorn:

I just came across, Pure Audio Project Quintet 15

https://hifipig.com/pureaudioproject-quintet15-wall-of-sound-open-baffle-speakers/

sfdoddsy

Re: Lets see your O.B. speakers....!
« Reply #481 on: 13 Feb 2021, 07:53 am »
Finished. 3 way passive open baffles. AST2560, Neo10, Satori WO24P. Corian baffle, sealed walnut bass enclosure.







JCarney

  • Full Member
  • Posts: 391
Re: Lets see your O.B. speakers....!
« Reply #482 on: 13 Feb 2021, 10:08 am »
Well done sfdoddsy! Those look very good, and I bet they sound very good as well. I'd say enjoy, but I'm guessing you already are.

JCarney

radarnyc

Re: Lets see your O.B. speakers....!
« Reply #483 on: 13 Feb 2021, 01:36 pm »

Digital XO done into Roon.

In-room response at my listening position:

Very nice! Questions:
1. Is the red part of room a wall or absorption panels running the length?
2. XO via Roon - do you DSP or XO? What is the. Actual setup to do a Dig XO via Roon?

Thanks,

pompon

  • Jr. Member
  • Posts: 20
Re: Lets see your O.B. speakers....!
« Reply #484 on: 14 Feb 2021, 12:50 am »
Very nice! Questions:
1. Is the red part of room a wall or absorption panels running the length?
2. XO via Roon - do you DSP or XO? What is the. Actual setup to do a Dig XO via Roon?
Thanks,

The red panels are 4 inch broadband absorbers.
On the top, gik gridfuser .

I do both XO and DSP

< 45hz (18db/oct) for my subs
between 45-300hz (18db/oct) for my woofers (18inch)
between 300-2800 (18dB/oct) for my fullrange wooders (10inch)
> 2800hz (18db/oct) for the tweeters.

I tried 12db/18db/24db/48db and 96db/oct.

24dB+ isolate too much one drivers. I am pretty close 8.5feets away from the speakers.
12dB is good but I have less precision than the 24.

18dB was a great compromise between natural and precision in my setup.

I am using Acourate software to generate XO and room correction.

Bumpy

  • Full Member
  • Posts: 327
Re: Lets see your O.B. speakers....!
« Reply #485 on: 21 Feb 2021, 03:03 pm »
Here's mine




Chops

Re: Lets see your O.B. speakers....!
« Reply #486 on: 21 Feb 2021, 04:15 pm »
I've been away from the DIY OB scene for a few years, but I'm back with my old project, and this time I plan on finalizing it and finishing it with proper baffles.

This is just all a temp setup, just for "proof of concept". These are the same drivers and dbx Venu 360 that I used a few years ago, but now in a much more suitable room, and with better gear overall ahead of it. I'll break down the entire system, as well as future plans...

Schiit Freya+ with NOS GE 6FQ7's and 6CG7's as the current tubes of choice. The Freya+ is being fed from from a Raspberry Pi 4 wirelessly via USB to a Schiit Bifrost 2 Multibit. From the Freya+, signal heads to the dbx Driverack Venu 360.

Audio Nirvana Super 12 Ferrite, powered by the Emotiva XPA 2 Gen 2, and crossed over at 35 Hz.

Eminence Acoustinator N1202, powered by Nuprime STA 9 (top one), and crossed over from 50 Hz to 190 Hz.

JL Audio e110 subwoofers, fed signal by second Nuprime STA 9 via high level input, and crossed over at 60 Hz.

All interconnects are Wireworld and Pangea XLR balanced cables.

Once I decide on a baffle design, it will be built with two layers of 0.75" Baltic Birch plywood for a nice and solid 1.5" thickness. The baffles won't be much wider than they are now, if at all. I have two pairs of the Eminence Acoustinator N1202 drivers and will wire them in parallel for a nominal 4 ohm load. So far with just two of them playing in the system (one per side), they are very impressive in their bass response and output capabilities. Running two per side in parallel will only make them that more efficient and dynamic, which they already are on their own.

As for the baffle design, I'm still on the fence as to how I'm going to go, whether it be a spin-off of the Pure Audio style or just a single, solid baffle, and whether or not I will have both bass drivers on the bottom, or one above and one below... a.k.a. - D' Appolito style.


As far as the current sound I'm getting?... Absolutely shocking honestly. Right now I'm streaming Andrew Jones' Elac demo playlist on Qobuz (running via Roon). Vocal naturalness, dynamics, weight and life-size presence and height is incredibly realistic, to the point of being "spooky" or "eerie" and sending chills right down your spine. Heck, even when I was in the kitchen making my coffee earlier, I swore someone came walking into the room and started talking. It scared the crap out of me! LOL

So far, all instruments have proper weight, heft, meat to them and great texture and tonality. The amount of detail throughout the entire range is excellent. And the treble... Let's not forget about that. All three of my brothers were over last night for dinner and a movie. They picked whatever they wanted to listen to music-wise while dinner was cooking. All three of them swore that I had some tweeters installed somewhere. LOL  The treble extension on these Audio Nirvana Super 12's is amazing. Full of "zip", airy, crisp, but still silky smooth, detailed and non-fatiguing. And there's absolutely zero EQ correction up that high in the Auto EQ. In fact, the highest EQ correction is +1.5 dB at 8.25 kHz at a Q of 6.24.

Because the baffles are currently standing directly on the suspended wood floor, you can feel each and every note, foot stomp, bass drum kick, bass string come right through the floor, and that's all coming from those two single 12" bass drivers. The JL subs are 4" off the floor on IsoAcoustics ISO-200 sub isolators, so I get very little energy transfer from them through the floor.

And lastly, sounds stage is deep, wide and tall when needed, and imaging is pretty spot on. The funny thing is, these open baffles just replaced my beloved pair of Martin Logan SL3's which I had dialed in as good as they could be in this room. Those SL3's sound excellent, but these ugly little OB's are bringing a lot more to the table right now.

Here's a few pics taken earlier today...









Chops

Re: Lets see your O.B. speakers....!
« Reply #487 on: 22 Feb 2021, 01:06 am »



Poultrygeist

Re: Lets see your O.B. speakers....!
« Reply #488 on: 22 Feb 2021, 12:29 pm »
Here's mine




Love the yin and yang drivers.

Ishcabible

  • Jr. Member
  • Posts: 3
Re: Lets see your O.B. speakers....!
« Reply #489 on: 22 Feb 2021, 07:39 pm »
Here’s one of my LXMinis:


I wanted a project to complete last summer and the LXMini was always something that interested me because I wanted something open baffle but didn’t really have the space for one. The LXMini looked like a way to get around that issue and I’ve been enjoying it a good bit ever since but the itch to build something else is starting to creep up again now that I’ve moved and have a little more space. I really enjoy the LX’s imaging but I find myself wanting a bit more in terms of timbre and bass impact.

mcgsxr

Re: Lets see your O.B. speakers....!
« Reply #490 on: 22 Feb 2021, 08:16 pm »
Chops - nice speaker experiment.

What are those cat sacks?  2 of mine might like those. 

Chops

Re: Lets see your O.B. speakers....!
« Reply #491 on: 22 Feb 2021, 09:57 pm »
Chops - nice speaker experiment.

What are those cat sacks?  2 of mine might like those.

Thank you. Was listening to them all day yesterday, tweaking crossover points and running the Auto EQ. These are by far the best sounding speakers I have now, by a long shot. And that's comparing them to Martin Logan SL3's, NHT 2.9's, just to name a couple. They outperform my oldest brother's Magnepan 1.7's, and my other brother's Monitor Audio Bronze 500's. That's not only me saying that, but they also said that this past weekend.

As for the kitty beds, they're something new that PetsMart is carrying. https://www.petsmart.com/cat/beds-and-furniture/cuddler-beds/whisker-city-grey-marble-snuggle-cave-cuddler-cat-bed-61182.html

Our kitties love them, so we'll definitely be getting a few more.

Chops

Re: Lets see your O.B. speakers....!
« Reply #492 on: 23 Feb 2021, 12:38 am »
Looking back on a few old posts from when I first bought these Audio Nirvana drivers, and just realized that I totally forgot that I purchased a total of four pairs of these Eminence bass drivers!

Gotta go back to the drawing board and figure out how I'm going to implement all eight of these 12" drivers. I had originally planned on building something along the lines of the Pure Audio Quintet line, but I don't think I want to have these speakers standing that tall. Hmm...