I call these the BaSSlines. They were inspired by a pair of speakers I heard last year designed by Jeff Bagby and Jim Salk of Salk Sound (hence the BaSS in the name). They are a 3way using a 12" Lambda TD12H in a 52 liter, slot ported cabinet (F3 around 35hz) with an open baffle B&C 6md38 6.5" midrange and a Peerless HDS tweeter mounted in a shallow waveguide. The sensitivity is probably around 92db.
I hope to have the finish wrapped up in the next week or two and then will make final crossover tweaks, if any, and publish the completed design. I used a small spare room we have upstairs to do the finishing in, since it is easier than doing out in the garage this time of year. I etched the logo on the Lexan with by hand with a dremel using vinyl stencils (that John over at AE speakers did for me, thanks John!) as a guideline.
There is a more complete build thread here:The BaSSlines
Thanks for looking.
I hope to have the finish wrapped up in the next week or two and then will make final crossover tweaks, if any, and publish the completed design. I used a small spare room we have upstairs to do the finishing in, since it is easier than doing out in the garage this time of year. I etched the logo on the Lexan with by hand with a dremel using vinyl stencils (that John over at AE speakers did for me, thanks John!) as a guideline.
There is a more complete build thread here:The BaSSlines
Thanks for looking.
wow... great looking speakers... great color,theme and good use of mixed mediums...
how do they sound
how do they sound
Thanks.😀
I'm thrilled with how they sound. IMHO, they are my best work so far and are up there with the best I recall hearing at DIY events over the last few years. Wide and deep soundstage, very clean and dynamic and forgiving of all kinds of material.
I'm thrilled with how they sound. IMHO, they are my best work so far and are up there with the best I recall hearing at DIY events over the last few years. Wide and deep soundstage, very clean and dynamic and forgiving of all kinds of material.
Those are great! I love the look and the and the different materials used. Very creative!
I have been thinking of something similar with a Hawthorne 10" coax and a AE'TD10s in a ported box for the lows. Looking for an alternative to Dipole bass, some living spaces are just too picky on placement for a full Dipole system. I figure the Lamda series would work well with the speed of the 10" Hawthorn drivers 95db spl.
Are yo happy with the AE Drivers so far?
-Jamie-
I have been thinking of something similar with a Hawthorne 10" coax and a AE'TD10s in a ported box for the lows. Looking for an alternative to Dipole bass, some living spaces are just too picky on placement for a full Dipole system. I figure the Lamda series would work well with the speed of the 10" Hawthorn drivers 95db spl.
Are yo happy with the AE Drivers so far?
-Jamie-
gainphile said:
Thanks.
This speaker was inspired by a prototype designed by Jeff Bagby and Jim Salk. When I heard it at the InDIYana DIY event last April, I just knocked me out. I thought it was the best speaker I have heard and it inspired me to see if I could duplicate it's sound. It used the same Lambda TD12H woofer, but a PHL mid and Morel dome tweeter. Anyway, dipole bass was never an option I even considered for this design. I'm not sure it would be right for my listening room anyway.
penderaudio said:
Thanks. I'm very pleased in how it turned out, both aesthetically and from a sound quality standpoint. I had used the combination of exotic wood veneer, metal and acrylic in a previous design and I wanted to take it a step further. I also wanted to reduce the apparent mass of the speaker in the room and making the top section predominantly transparent really does this quite successfully. I've always liked mixed hardwoods in furniture.
The TD12H I'm using in this design is the best woofer I've used and IMHO, the best I've heard. It is literally flat out to about 4khz and is very clean, extremely dynamic and works in a pretty small box, as you can see.
Very nice looking speaking. Is there any reason why the bass driver is so near to the floor and away from the mid? Won't you get bass boom from such arrangement?
SamL said:
It's placement was chosen to avoid interference from floor bounce in the lower midrange.
I tempted to try that excellent AE TD12H woofer. Are you happy with your chosen port tuning & overall bass performance?
SamL said:
For several reasons. As Thadman says, one is to avoid floor bounce cancellation. Another is to use the boundary reinforcment of the floor to substantially reduce baffle step losses. Also, aesthetically I wanted the mass of the speaker be low to reduce its apparent mass in the room and anchor it to the floor. To move the woofer up higher causes the box to be wider toward the top and more massive appearing. I also wanted to rear mount the woofer to reduce its visual footprint on the baffle, so it had to be low enough for that as well.
Even with the lower woofer, the vertical polar response is very good. Here is a simulation of the vertcal polar response from 500 through 3000hz in 500hz increments. The crossover poinst are at about 450hz and 2400hz.
David Gatti said:
Yes I'm very happy with it. I used a slot port so that I could fine tune it more accurately and so I could push the first port resonance above the crossover point to the mid.
Just thought I'd chime in and tell you that your creation here is just freaking cool looking! 😀
If those sound as good good as they look you have a sure winner.
Really, really nice work, I luv em! 😀
Rick
If those sound as good good as they look you have a sure winner.
Really, really nice work, I luv em! 😀
Rick
Thanks, Rick, I couldn't be more pleased with how this design turned out, sonically or visually. I think they sound as good as they look, which is something I strive for in my designs, a look that is as good as the sound.
I'm on to the next project, now, called the Blades. This design is a 4way, with 10" Dayton RSS265HF subwoofer with a Sa240w plate amp up to 80-100hz or so, a pair of Dayton RS180s-8's as upper bass, crossed to a Morel MDM55 2-1/8" dome mid at around 1000hz, crossing to a Seas 22TAF/G tweeter at around 3600hz. The WWMT section is all passive. The sub is in a 55l tapered transmission line, with an F3 of about 25hz, F6 around 19hz. The upperbass units are sealed.
The challenge for this design was that it had to be done using drivers and materials I already had on the shelf, as much as possible. The concept I'm exploring is using a narrow baffle on a larger speaker predominantly to try and improve soundstage and push the diffraction ripple above the passband where possible. I also wanted the design to be able to sit close to the front wall as compared to my OB/dipole speaker which needs to sit out in the room a bit.
Below are a few photos of the prototype speaker I've built. I'm in the process of doing the measurements and crossover design at this time.
Here are some mockops of finishing options I'm considering (the potential veneers are also coming from stuff I already have on hand):
Gloss metallic black and white
Gloss metallic burgundy and silver/chrome
Gloss metallic black and gum veneer
Gloss metallic black and burl maple
Gloss metallic black and stained or dyed curly walnut
I'm on to the next project, now, called the Blades. This design is a 4way, with 10" Dayton RSS265HF subwoofer with a Sa240w plate amp up to 80-100hz or so, a pair of Dayton RS180s-8's as upper bass, crossed to a Morel MDM55 2-1/8" dome mid at around 1000hz, crossing to a Seas 22TAF/G tweeter at around 3600hz. The WWMT section is all passive. The sub is in a 55l tapered transmission line, with an F3 of about 25hz, F6 around 19hz. The upperbass units are sealed.
The challenge for this design was that it had to be done using drivers and materials I already had on the shelf, as much as possible. The concept I'm exploring is using a narrow baffle on a larger speaker predominantly to try and improve soundstage and push the diffraction ripple above the passband where possible. I also wanted the design to be able to sit close to the front wall as compared to my OB/dipole speaker which needs to sit out in the room a bit.
Below are a few photos of the prototype speaker I've built. I'm in the process of doing the measurements and crossover design at this time.
Here are some mockops of finishing options I'm considering (the potential veneers are also coming from stuff I already have on hand):
Gloss metallic black and white
Gloss metallic burgundy and silver/chrome
Gloss metallic black and gum veneer
Gloss metallic black and burl maple
Gloss metallic black and stained or dyed curly walnut
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