Very pretty.
The official term for back to back is push-push. With the bipole cabinets deeper than wide you will have a larger bipole dip than if they were wider than deep.
dave
Woops, yes they are push push, or if you are a pessimist pull pull? They sound fantastic in a larger room where the null can form. In small rooms they can be somewhat confused and instruments appear beyond the walls or even present a headphone type music in your head effect. Far-out, man. Oh, and don’t sit between them.
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Joined 2009
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The output from the back is delayed just enuff to be out of phase kust below the bafflestep. The higher the width:depth ratio the less the size of the dip.
If you listen to a bipole that had the push=push drivers on the sides (like Tysen V2) there is no dip since the sound travels the same distance.
One can see from this that the dip is worst on-axis and decreases as you listen more off-axis, and gone if you listen 90° off-axis.
dave
If you listen to a bipole that had the push=push drivers on the sides (like Tysen V2) there is no dip since the sound travels the same distance.
One can see from this that the dip is worst on-axis and decreases as you listen more off-axis, and gone if you listen 90° off-axis.
dave
Made a quick build to get some speakers to my office.
Had these 2" peerless laying around useless, put them into wooden chests (4€/each), tuned them to 100hz. Made a thicker front baffle with a piece of plywood and some bitumen mat on the inside to add weight. Finally filled with polyfill and wrapped them with dc-fix. Amplified by 5 volt class-d PAM amplifier.
Had these 2" peerless laying around useless, put them into wooden chests (4€/each), tuned them to 100hz. Made a thicker front baffle with a piece of plywood and some bitumen mat on the inside to add weight. Finally filled with polyfill and wrapped them with dc-fix. Amplified by 5 volt class-d PAM amplifier.
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Finally managed to finish my Bluetooth 'soundbar' for summer. This is inspired by the micro-Onken with an Alpair 6P in a 3L enclosure tuned to 70 Hz. This uses a Sure 2x25W TDA7492 ClassD amp from Parts Express which runs happily all day from 3 18650 batteries.
After the drivers broke in, this thing sounds great. If I put it near a wall, the bass is quite impressive.
After the drivers broke in, this thing sounds great. If I put it near a wall, the bass is quite impressive.
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No, I ended up building a hack router table from MDF to cut each piece from a pattern. After gluing, a belt sander finished the job.
It is a bit embarrassing to admit I bought the drivers for this in 2013. It only took me 5 years to actually get this built...
So no shortcuts, and good end result. 🙂
Some projects take longer than expected, as other things always seem to get in the way... what matters is that you didn't give up and finally did build it.
Enjoy!
Tinuviêl - a DSP-controlled Desktop-Speaker with Tangband W4-1879
The pc-speaker of my dreams 😀
Deviant the original Tinuviêl a sandfilled stand was integrated in the enclourse.
The plans are available at my website (German).
The pc-speaker of my dreams 😀
Deviant the original Tinuviêl a sandfilled stand was integrated in the enclourse.
The plans are available at my website (German).
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Quick and low-cost build for a friend. 2 x HiVi M3N in a sealed, slim tower. These are being supported by subwoofer. Will possibly convert to 1.5 way to eliminate any interference issues at high frequencies and provide baffle step compensation.
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Looks super nice!
Not the looks of a quick and low-cost build I would expect!
You could keep the top driver sealed, and make a 1/4 wave TL with the lower one.
Not the looks of a quick and low-cost build I would expect!
You could keep the top driver sealed, and make a 1/4 wave TL with the lower one.
My Fane 12-250-TC '60s retro cabs are now completely finished; Fender Tweed clothed grilles being the last piece of the jigsaw. Grille frames are fixed with brass domed mirror screws:
