So, if you were wondering how the 18inch BMS 18N862 sounds like... this short video might give you a glimpse.
The BMS play with my current magico mini wannabe. I just plugged the BMS and the nextel mid to the same crossover 🙂 since the dedicated TL2 crossover is not ready yet. But what do you know? The sonofabitch is producing tremendous bass capabilities, powerfull, fast, and very accurate 👌😀
I recorded a trance track that made my jaw falls to the ground... no audiophile music this time!
Please use headphones
Needless to say that I took cover behind the sofa 😉
The BMS play with my current magico mini wannabe. I just plugged the BMS and the nextel mid to the same crossover 🙂 since the dedicated TL2 crossover is not ready yet. But what do you know? The sonofabitch is producing tremendous bass capabilities, powerfull, fast, and very accurate 👌😀
I recorded a trance track that made my jaw falls to the ground... no audiophile music this time!
Please use headphones
Needless to say that I took cover behind the sofa 😉
Hi- I love the way that track sounded, I had to take cover behind my headphones😳
I have the drivers and the kit ordered and on their way to me. I have another huge project to finish before I can start on the speakers again, but that is OK because the next parts are scary.
Will you please take a lot of pictures while you are building the crossover? It looks simple in a photograph but I had to read a couple of articles to even understand what is actually going on. Any process photos and advice will be hugely beneficial. (this is my first speaker build)(probably, hopefully, my last)
I have never cut a circle with a router before. I see the pictures of the router bits on Troels site, but he does not name what they are. What do you call the bit you used to cut the circle?
I have a full size porter cable plunge router and I have a small trim router. I assume I will only be using the plunge router to cut these circles. The face material I am using, which will hold the drivers, is 1-3/4” thick, do I need a special router bit or to do anything special to get it to cut this deep? I know that I need to go slowly and cut small depth at a time.
I will practice cutting the circles on the interior bracing. I worry about cutting the very small circles with the big router, do you have any advice on that?
I read that I should not cut the circles for the drivers until I have the driver in hand because some time the frame size varies. What is the name of that tool that measures the circumference?
please continue to post pictures while you work on your speaker cover. I would like to see how you work with that wire mesh you showed us.
What acoustic fabric are you using? I have used acoustically transparent fabric from Guilford of Maine for speaker covers previously.
Thank you
Will
I have the drivers and the kit ordered and on their way to me. I have another huge project to finish before I can start on the speakers again, but that is OK because the next parts are scary.
Will you please take a lot of pictures while you are building the crossover? It looks simple in a photograph but I had to read a couple of articles to even understand what is actually going on. Any process photos and advice will be hugely beneficial. (this is my first speaker build)(probably, hopefully, my last)
I have never cut a circle with a router before. I see the pictures of the router bits on Troels site, but he does not name what they are. What do you call the bit you used to cut the circle?
I have a full size porter cable plunge router and I have a small trim router. I assume I will only be using the plunge router to cut these circles. The face material I am using, which will hold the drivers, is 1-3/4” thick, do I need a special router bit or to do anything special to get it to cut this deep? I know that I need to go slowly and cut small depth at a time.
I will practice cutting the circles on the interior bracing. I worry about cutting the very small circles with the big router, do you have any advice on that?
I read that I should not cut the circles for the drivers until I have the driver in hand because some time the frame size varies. What is the name of that tool that measures the circumference?
please continue to post pictures while you work on your speaker cover. I would like to see how you work with that wire mesh you showed us.
What acoustic fabric are you using? I have used acoustically transparent fabric from Guilford of Maine for speaker covers previously.
Thank you
Will
I have an additional question, please.
I am using 1-3/4” bamboo for the face of the speaker. I know speaker cabinets are supposed to be “dead”, which to me means that they do not resonate when you knock on them. I do not have a good reference as to whether the bamboo is a dead material.
I know that sometime people use bitumen/Sound deadning material that they stick to the walls inside their cabinets. Would it be helpful or advisable for me to use this bitumen material on the inside of the face of the bamboo, of my speakers?
I remember reading someone who was using it said that they used it everywhere except the face of the speaker, but I could not find out why.
What do you think, please?
I am using 1-3/4” bamboo for the face of the speaker. I know speaker cabinets are supposed to be “dead”, which to me means that they do not resonate when you knock on them. I do not have a good reference as to whether the bamboo is a dead material.
I know that sometime people use bitumen/Sound deadning material that they stick to the walls inside their cabinets. Would it be helpful or advisable for me to use this bitumen material on the inside of the face of the bamboo, of my speakers?
I remember reading someone who was using it said that they used it everywhere except the face of the speaker, but I could not find out why.
What do you think, please?
Bamboo isn't very dead at all. Its actually pretty resonant in its natural grain formation. Things change when you laminate it into plywood or other composite materials. Its Q is very high, so you'll get strong amplitude peaks higher up thanks to its stiffness to weight ratio. A layer of high density polymer damping in between it and another baltic birch plywood layer will be enough to subdue anything audible. This all of course depends on your crossover point.
My apologies of responding so lately for your post... We are currently moving a house! That's why I am obliged to put the TL2 on a hold. Will probably continue with the epic journey at middle of august. but damn! I cannot wait continuing! All I do now are boring stuff like laying new floor, building the kitchen and some other stupid stuff😴
For your questions... I would not be able to post any crossover photos online apart from maybe some snaps of parts of. You see I have major respect to Troels work and I want to support his cause. I mean, 6000Eu and you have something competing with about everything out there. So the secrete sauce should stay secrete... Or else you pay for it.
What I can say though that you should stick to the plans of his (you know the printed schematic) and ignore his photos of layout. Then you take it slowly and follow it like Lego plans. and best yet would be if you really brake to building blocks... metodigly working threw the drivers sections. I have an old woofer that I'm testing on to see if I made a mistake. Very premitive... but blowing up a 400eu tweeter is not fun.
For cutting the circle I use this tool:
https://www.ebay.de/itm/22292281980...55-0&campid=5338722076&customid=&toolid=10050
Super easy to use. I also recommend having the drivers before routing.... and better still is to do a mockup routing to be sure you are routing the exact right size.
I hope it helps! and I hope sincerely to write sooner next time. All the best!
So , moving to a new house is done and my wife is content enough with my household and renovations projects that she let's me continue with the awsome TL2 work. I have decided to call it K2... named after the deadly K2 mountain... maybe not the tallest but certainly the most ominous mountain out there... a proper name indeed for the monstrosity the TL2 is. After setting my pair in our upmost floor, I tooked my clients pair to the workshop, starting today with primer color. Lots of work, but feels awsome to do those stuff I like After 3months of tedious renovation work.
noamgeller,
Hopefully you will get sound from these monsters real soon.
Well, good to know that your better half is tolerating these fridge-like structures 🙂, what does the little angel think of papa's new toys?
Hopefully you will get sound from these monsters real soon.
Well, good to know that your better half is tolerating these fridge-like structures 🙂, what does the little angel think of papa's new toys?
The crazy thing is that the chunkiest crossover (highlighted in red) is responsible solely of the 10inch middriver!!!
Yes, that is the normal thing. Mid-range crossovers are always twice as big as the other two.
Great news! The other pair of the TL2 is playing in our new home. Here is a short video of how it sounds. (Headphone is recommended)
Beautiful listen room design and treatment... Speakers pretty cool too!
Congratulations!
So, do they live up to Munich standards, i.e. Viva, Lorenzo?
Thanks! Yes, this speakers are tremendous! They are very similar to the Lorenzo and Viva speakers, in their effortless presentation. Fast and snappy, huge soundstage, and vocal to die for. The best of it is that they don't break a sweat and almost always pleading to turn the volume up. Dynamic and fun at low volume, dynamic and scary at high volume levels.
Yet through out in control, effortless. A king of a speaker indeed 👏🙌
Is it a goodbye then from traditional hifi drivers 🤔... seems like it... the next4 I've built feel very impotence and hifiish in comparison.
I wish I could take this speaker to munich... would be a blast!
If you can’t take them to Munich, couldn’t you make us a set of polars? *smiles mischievous *
Also, congrats!
Also, congrats!