Small bookshelf is sealed box design with SB Acoustics Satori 6" - full range OB Esoteric Audio Device EAD HD60MKII, passive crossover first order on woofer and full range, and one notch filter with Camilla DSP on moode audio.
Flor stander is MarkAudio MAOP10 with down firing port.
Flor stander is MarkAudio MAOP10 with down firing port.
Hello, like to introduce you to my latest builds with the fabulous Markaudio CHR-120, the Hirola twin driver and the Oryx, the Hirola goes incredibly deep, off course it is a big speaker and heavy, the Oryx is very allroun… hope you like them 😉
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Here's my full range boom box build progress! Drivers are Pluvia 11s and amp board is a TPA3116D2.
Cabinet is 18mm red oak plywood wrapped in basalt/flax* hybrid fibre composite (4x 85 GSM) with internal Tasmanian oak bracing and a pine facia for the baffle. After adding the composite layer and facia, the cabinet is incredibly stiff - in a [highly scientific] knock test there is almost no resonance at all!
I used the Compact Monitor design set back-to-back which are ~7.7L each side. From a brief test I can tell the drivers are very directional but the system sounds great for how simple it is, and even without a properly sealed box (rear panel is removable) the bass was very good.
I'll upload another pic when it's done!
*Basalt has a strength and stiffness profile somewhere between fibreglass and carbon fibre. Flax is not particularly strong but has amazing damping properties!
Cabinet is 18mm red oak plywood wrapped in basalt/flax* hybrid fibre composite (4x 85 GSM) with internal Tasmanian oak bracing and a pine facia for the baffle. After adding the composite layer and facia, the cabinet is incredibly stiff - in a [highly scientific] knock test there is almost no resonance at all!
I used the Compact Monitor design set back-to-back which are ~7.7L each side. From a brief test I can tell the drivers are very directional but the system sounds great for how simple it is, and even without a properly sealed box (rear panel is removable) the bass was very good.
I'll upload another pic when it's done!
*Basalt has a strength and stiffness profile somewhere between fibreglass and carbon fibre. Flax is not particularly strong but has amazing damping properties!
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I just finished this portable stereo unit for a friend using Dayton 3-1/2" ND91-8 full range drivers with Dayton 5" DS135-PR passive radiators on the rear, Vb = 1.6 liters. The amp board is a TPS3116D2 (2x50W + 100W S/W), along with a rechargeable battery pack.
I added some tone sauce (contour circuit) to smooth out the response.
The PR extends the bass smoothly without adding weights to it. Fb is in the 70's. Overall sound is quite nice.
Enclosures made with birch ply and walnut. The speakers clip on the center unit for easy transport.
It was a good way to keep off the streets this past winter.
I added some tone sauce (contour circuit) to smooth out the response.
The PR extends the bass smoothly without adding weights to it. Fb is in the 70's. Overall sound is quite nice.
Enclosures made with birch ply and walnut. The speakers clip on the center unit for easy transport.
It was a good way to keep off the streets this past winter.
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I just realised I hadn't posted this project here!
My father inherited these cabinets that were made in the early 70s for my grandfather in Hobart, Tasmania (Aus). The drivers perished completely and the front baffle was made from chipboard so a proper restoration was in order. the ~42L volume was perfect for the CHR-120! I remade the baffle, we re-applied the grille fabric and dropped it in to the box! Easy.
A fun project and they sound excellent. The cabinets have a lot of nostalgic value in my extended family so it was nice to re-use and modernise them.
This was my second full range speaker project, the first was Frugel Horn Mk3s (Alpair 7MS) and the third project is my FR boom box in post #4852.
My father inherited these cabinets that were made in the early 70s for my grandfather in Hobart, Tasmania (Aus). The drivers perished completely and the front baffle was made from chipboard so a proper restoration was in order. the ~42L volume was perfect for the CHR-120! I remade the baffle, we re-applied the grille fabric and dropped it in to the box! Easy.
A fun project and they sound excellent. The cabinets have a lot of nostalgic value in my extended family so it was nice to re-use and modernise them.
This was my second full range speaker project, the first was Frugel Horn Mk3s (Alpair 7MS) and the third project is my FR boom box in post #4852.
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