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  • Re: on Sale - $55/pr (drivers & XO)

    Review: Initial start they sounded good. Tweeter is bright. After a few hours the tweeters get SUPER bright! Don't be alarmed, after this brightness for an hour or so they go down to an even level. After this even level, you basically have broken in the speakers and won't get much better. I have bin playing music for another 4 hours on it and haven't noticed any changes.

    Note: For the MTM ported version, set your high pass filter for the speakers at 40 Hz for the best low end and loudness. Sub should be at 40 Hz (is for me) and integrates FLAWLESSLY.

    Overall: Speakers are AMAZING for the money, the punch you get from them has amazed EVERYONE that has heard them. Clarity is spot on even if you crank them.

    Cons: Break in for the tweeters scared me when it just got so bright and had a pop sound at normal level a few times while playing them (during break in). You will be wanting more since you know how amazing they are.

    Want more? This is my next step since I want more punch and clarity!

    I plan to upgrade to the Aviatrix (http://speakerdesignworks.com/AviaTrix_1.html ) ported on my desk. They not only have a 3dB more sensitivity for the woofers, they have a $50 VERY linear tweeter that is crossed at 1k and that will play all those vocals and high notes so you get the best clarity from the best driver.

    Thank you all for your help and patience. I still need to paint them but that will come later as I just want to enjoy them for now :D

    Comment


    • Re: on Sale - $55/pr (drivers & XO)

      Aviatrix is a little much for a desktop don't you think? Not so sure it works for near field work. Take a look at LouC's Piccolata or Paul Carmody's Speedster.

      http://speakers.lonesaguaro.com/spea...Piccolata.html

      https://sites.google.com/site/undefinition/speedster
      I was so much older then, I'm younger than that now.
      OS MTMs http://techtalk.parts-express.com/sh...d.php?t=220388
      Swope TM http://techtalk.parts-express.com/sh...d.php?t=221818
      Econowave and Audio Nirvana AN10 fullrange http://techtalk.parts-express.com/sh...d.php?t=216841
      Imperial Russian Stouts http://techtalk.parts-express.com/sh...=1#post1840444
      LECBOS. http://techtalk.parts-express.com/sh...ghlight=lecbos

      Comment


      • Re: on Sale - $55/pr (drivers & XO)

        The NTN's are on my desk and are 33 inches from my ear. I'm going big as i want the punch and just love these drivers. I will fit as big as possible on my desk, I'm not going to get some small dinky drivers. :D

        Plus, I got my sub crossed low so it only vibrates and impossible to localize and my speakers play everything else.

        Setup: Xonar DX-Digital out- Onkyo HT-RC-260. I got a A2-300 (dampened and stuffed with poly inside it).

        Comment


        • Re: on Sale - $55/pr (drivers & XO)

          Originally posted by nick650 View Post
          The NTN's are on my desk and are 33 inches from my ear. I'm going big as i want the punch and just love these drivers. I will fit as big as possible on my desk, I'm not going to get some small dinky drivers. :D

          Plus, I got my sub crossed low so it only vibrates and impossible to localize and my speakers play everything else.

          Setup: Xonar DX-Digital out- Onkyo HT-RC-260. I got a A2-300 (dampened and stuffed with poly inside it).
          I know what you mean by punch. I used Don Radick's Aurbacs (TM NS6 paper cones) for computer speakers for a while and while playing games like Modern Warfare 2, those sniper shots really hit you in the chest like recoil.
          Modding the Lepai T-Amp

          Comment


          • Re: on Sale - $55/pr (drivers & XO)

            Originally posted by nick650 View Post
            Cons: Break in for the tweeters scared me when it just got so bright and had a pop sound at normal level a few times while playing them (during break in).
            I never heard the pop. And I wouldn't describe them as bright so much as I would harsh. I was scared, too. Thought I had screwed up the crossover circuitry. I noticed the same thing with the Overnight's.

            Comment


            • Re: on Sale - $55/pr (drivers & XO)

              I just thought I would post an update on my work with this project. I made a center channel ntn that would fit between my tv and fireplace.....(see pic)

              I spent some time listening to this center channel and made some adjustments. First I flipped it over so the tweeter is on the bottom, seating position is lower than the speaker and it sounded better this way. Second I took some BSC out of it by replacing the 2.0mh coil with a 1.0mh(I think that is the value..) I did not pad the tweeter up any, I do not know if it needs it for center channel duties.....

              I have squirted it with flat black real quick so it does not stick out like a sore thumb, but I do have a plan for finish. The TV border is shiny black. I am going to emulate this by cutting a piece of clear plexi the size of the baffle and painting the back black, then I am going to glue it on the baffle. Hopefully it does not end up all wavy....I will post with results when I get this done...



              Cliff
              Attached Files

              Comment


              • Re: $75 ntn's

                Several months ago, shortly after the original installation that I documented here in this thread, I changed the way I've got these mounted. I wanted them angled inward towards the listeners. They do sound great and faithfully reproduce the audio demonstrations I'm "showing" to the class. They faithfully produce the audio tracks of the AV recodings. And, oh yeah, they're good for listening to music, too. (Especially when the students aren't around and I've got the whole place to myself).

                I couldn't get a wide enough shot to show both speakers in the same photo, but hopefully you get the idea.

                I've had a few comments on the sound quality, and even a few more on the appearance, especially the window that allows viewing of the crossover circuit elements. That feature was a lot more work, but I'm glad I added it.

                As an aside, I've recently had some major reassignments in the administrative portions of my job duties. After a lot of anxiety, what's emerged especially clearly is this one belief. I want to spend a lot of time in this particular room teaching physics. I'll enjoy the challenges of the other administrative duties, and of course the money that comes with all of it, but it's this room and what happens in it that keeps the fire lit. And these speakers just add a very plaeasant layer on top of that.

                I have to say my thanks to the designers of these speakers (Lou C for the Piccolatta's and Chris Roemer for the ntn's) but also to all the other contributers here on this forum who have provided me so much help in the way of knowledge, skills, discussions, tricks, and tips. I could never have done it without you guys and this forum provided by PE.
                Attached Files

                Comment


                • Re: on Sale - $55/pr (drivers & XO)

                  So, I FINALLY finished my N-t-N's.

                  Photos forthcoming, but in the meantime -

                  They took the form of a mini floor-stander. External dim's: 40"h, 6" w (front) 4" w (rear) 10" d. 3/4" stock, all around. Sides are kerfed and curved, 10 degrees of curvature. Internal volume, net, approx. .625'.

                  Crossover in a separate bottom compartment, with this portion of the rear baffle removable.

                  2" x 6" port, to the rear. Fb approx. 40hz.

                  Initial impressions:

                  This could be considered a full range system for two channel music listening in a small or medium size room. No sub required. Strong output to below 40hz, as advertised. The 105's can really move. No way do they sound like 4" drivers. They play deep, tight, and loud enough for me.

                  The 105's are not, however, a one trick pony. They easily come up to cross to the ND 20's.

                  I would describe the overall sound as very well balanced, neutral to a touch on the warm side of neutral. The detail is there, but no etch or glare.

                  Center image is rock solid, and on well recorded material they do "disappear".

                  My B&W's are now in the garage, and probably soon to be on Craig'slist.

                  The drivers were purchased a while ago, when the 105's were $12, and the ND20's were $5. That's $58 dollars in drivers. Maybe $100 for x-over parts, binding posts, ports, and damping.

                  Even at the current price for these drivers,this is a stunning design, and an easy build for a high SQ/high WAF design.

                  Chris- Thanks!!

                  Comment


                  • Re: $75 ntn's

                    Originally posted by Herman Trivilino View Post
                    Several months ago, shortly after the original installation that I documented here in this thread, I changed the way I've got these mounted. I wanted them angled inward towards the listeners. They do sound great and faithfully reproduce the audio demonstrations I'm "showing" to the class. They faithfully produce the audio tracks of the AV recodings. And, oh yeah, they're good for listening to music, too. (Especially when the students aren't around and I've got the whole place to myself).

                    I couldn't get a wide enough shot to show both speakers in the same photo, but hopefully you get the idea.

                    I've had a few comments on the sound quality, and even a few more on the appearance, especially the window that allows viewing of the crossover circuit elements. That feature was a lot more work, but I'm glad I added it.

                    As an aside, I've recently had some major reassignments in the administrative portions of my job duties. After a lot of anxiety, what's emerged especially clearly is this one belief. I want to spend a lot of time in this particular room teaching physics. I'll enjoy the challenges of the other administrative duties, and of course the money that comes with all of it, but it's this room and what happens in it that keeps the fire lit. And these speakers just add a very plaeasant layer on top of that.

                    I have to say my thanks to the designers of these speakers (Lou C for the Piccolatta's and Chris Roemer for the ntn's) but also to all the other contributers here on this forum who have provided me so much help in the way of knowledge, skills, discussions, tricks, and tips. I could never have done it without you guys and this forum provided by PE.
                    I have never seen the crossover components displayed like that. Not sure if my wife would dig it, but I think that is REALLY cool
                    Craig

                    I drive way too fast to worry about cholesterol.

                    Comment


                    • Re: $75 ntn's

                      Originally posted by PWR RYD View Post
                      I have never seen the crossover components displayed like that. Not sure if my wife would dig it, but I think that is REALLY cool
                      Thanks. I've gotten a few comments on them, all positive. Of course, when I was building them and my wife spotted that feature, all I got was the eye-roll.

                      I don't think I'd want them in my living room either, but they definitely look like they belong where they are now.

                      Comment


                      • Re: on Sale - $55/pr (drivers & XO)

                        Very appropriate in a physics classroom,I'd say. I'll bet you refer to the components now and then...
                        Last edited by Soundslike; 08-14-2011, 03:27 PM. Reason: grammar
                        Tritrix HT:http://techtalk.parts-express.com/sh...d.php?t=222519
                        Dayton 12" Subwoofer: http://techtalk.parts-express.com/sh...d.php?t=222930
                        Overnight Sensations: http://techtalk.parts-express.com/sh...d.php?t=223751
                        Cerberus sub: http://techtalk.parts-express.com/sh...hlight=cerebus
                        Duellatis: http://techtalk.parts-express.com/sh...d.php?t=224943
                        NTN's: http://techtalk.parts-express.com/sh...d.php?t=227902

                        Comment


                        • Re: SICK - SICK - SICK . . .

                          Originally posted by Chris Roemer View Post
                          My cabinet choice: 28"h x 6"w x 9.5"d. 0.55 cf
                          A 2"d x 7" long rear vent centered 10" up from the bottom tunes this box to 39 Hz yielding an F3 of 38. I'd mount the upper woofer's center 4" down from the box top. This puts the tweeter at about 21", so theese should sound best on about 12" high stands.

                          Off you go.

                          Chris
                          Are the box dimensions 28x6x9.5 outside dimensions with 3/4" stock?

                          TomZ
                          Zarbo Audio Projects Youtube Channel: https://www.youtube.com/channel/UCEZ...aFQSTl6NdOwgxQ * 320-641 Amp Review Youtube: https://youtu.be/ugjfcI5p6m0 *Veneering curves, seams, using heat-lock iron on method *Trimming veneer & tips *Curved Sides glue-up video
                          *Part 2 *Gluing multiple curved laminations of HDF

                          Comment


                          • Re: SICK - SICK - SICK . . .

                            Originally posted by tomzarbo View Post
                            Are the box dimensions 28x6x9.5 outside dimensions with 3/4" stock?

                            TomZ
                            Yup.

                            SOME day I'll draw up a plan for the ntn, maybe, but I think I'll make the height 24" to help fit the cuts better on a "handi-panel".

                            There are almost as many variations on the ntn cab as people who've built them. A tall floor-stander (getting the ND20 up to at least 30") seems to be quite popular.

                            Chris

                            Comment


                            • Re: SICK - SICK - SICK . . .

                              Originally posted by Chris Roemer View Post
                              Yup.

                              SOME day I'll draw up a plan for the ntn, maybe, but I think I'll make the height 24" to help fit the cuts better on a "handi-panel".

                              There are almost as many variations on the ntn cab as people who've built them. A tall floor-stander (getting the ND20 up to at least 30") seems to be quite popular.

                              Chris
                              I drew this rough cut sheet up a few minutes ago.
                              It uses a 4x8 sheet of 3/4 material. It's rough, so take with grain of salt
                              Good thing about MDF though is at least in my neck of the woods, it is a little oversized which helps.



                              I added a stand to get it up the suggested 12" or so since there was the scrap available.

                              Hopefully I got the dimensions close to correct. Actually, after looking at it a bit, I think the stand may look a little better if it were reversed front to back.

                              BTW, I'm really enjoying my Nano Neo's, they do an amazing job!

                              TomZ
                              Zarbo Audio Projects Youtube Channel: https://www.youtube.com/channel/UCEZ...aFQSTl6NdOwgxQ * 320-641 Amp Review Youtube: https://youtu.be/ugjfcI5p6m0 *Veneering curves, seams, using heat-lock iron on method *Trimming veneer & tips *Curved Sides glue-up video
                              *Part 2 *Gluing multiple curved laminations of HDF

                              Comment


                              • Re: SICK - SICK - SICK . . .

                                This looks a little better I think...



                                Chris, I hope you don't mind me visualizing with your design a bit. It must be a little like someone drawing a mustache on your child's picture!

                                TomZ
                                Zarbo Audio Projects Youtube Channel: https://www.youtube.com/channel/UCEZ...aFQSTl6NdOwgxQ * 320-641 Amp Review Youtube: https://youtu.be/ugjfcI5p6m0 *Veneering curves, seams, using heat-lock iron on method *Trimming veneer & tips *Curved Sides glue-up video
                                *Part 2 *Gluing multiple curved laminations of HDF

                                Comment

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