The specification of 95 db that you point out from those speakers is 1W / 1M, as is the standard measurement today, but I think it is a point to consider .....
What conditions do 1w / 1m speaker manufacturers measure? with the outdoor speaker, or with the baffle panel in between?
Because if those measurements are with baffle panel, then they are not real 95 db in that design.
Anyway, the design is nice, I must admit...
Not suitable for valvular, less for single end...
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I am puzzled by your idea to use two woofers front to front. Isobaric this is called in sealed enclosures, where it makes sense. It allows you to cut the enclosure volume in half.
Here it doesn't make any sense at all. The acoustic resistance met by the cone will be negligible compared to the force needed to move the moving mass.
Besides that, it is a flawed idea that using a woofer baffle less will lead to improved sound. It will not result in any sound at all in the lower octaves because of the earlier mentioned acoustic short circuit. But it will lead to a lot of mechanical noise of a driver working too hard in order to generate any kind of output at all.
But please be stubborn and report back on your learning experience
Of course, I know how manufacturers measure the sensitivity of speakers. At low frequencies the sensitivity will be much lower. But as I mentioned, it will be a two-way system with active x-over and EQ on a low-frequency and 3kHz. Small listening room specially built - side walls and ceiling with floor are not parallel. Front and rear walls LEDE system with bass traps.
How do I understand that it will not be suitable for valve and single ended amplifiers?
How do I understand that it will not be suitable for valve and single ended amplifiers?
I am puzzled by your idea to use two woofers front to front. Isobaric this is called in sealed enclosures, where it makes sense. It allows you to cut the enclosure volume in half.
Here it doesn't make any sense at all. The acoustic resistance met by the cone will be negligible compared to the force needed to move the moving mass.
Besides that, it is a flawed idea that using a woofer baffle less will lead to improved sound. It will not result in any sound at all in the lower octaves because of the earlier mentioned acoustic short circuit. But it will lead to a lot of mechanical noise of a driver working too hard in order to generate any kind of output at all.
But please be stubborn and report back on your learning experience
It's not isobaric. This is a dummy baffle, not yet confirmed by any of the scientists. Only real users have confirmed that it is working.
Yes I'm stubborn. I went a long way (20 years) before I discovered and understood the OB system and especially this provocative underground design
When I have the measurement results and the long-term listening tests I will go back.
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Hat rubber
Hello
Also used by Steinway Speakers | Steinway Lyngdorf | The world's finest audio systems
Regards
Roger
Hello
Also used by Steinway Speakers | Steinway Lyngdorf | The world's finest audio systems
Regards
Roger
Hi Roger,
An interesting combination of two legends. I know the good old products of Mr. Lingdorf. Dali Skyline, Gravity, Detail.
But if it is the same person.
BR
Could you tell us in what conditions the speakers you use were measured by the manufacturer?
Look at this Eminence article, Big Tony makes a mistake here, because sensitivity and efficiency are not the same .......
" SPL stands for sound pressure level and is also commonly referred to as efficiency and sensitivity."
But the end I see it right ........
" The intent here is not to validate Eminence’s method or accuse others of doing it incorrectly. It is merely pointing out that there are differences and comparing different manufacturer’s SPL ratings may not be an accurate comparison."
I must clarify here that I do not mean amplifiers of valves of great powers, but one with a terminal based on 2A3 or 300B
Horns must be used to obtain adequate SPL with these flea amplifiers. This is a fact.
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That is not a fact. It depends on how loud is adequate for the listener, the room, the dynamics of the music.
dave
Well, acoustic short circuit through, maybe it could be in a small environment and with music to "rest and dream" ....
Look at this Eminence article, Big Tony makes a mistake here, because sensitivity and efficiency are not the same .......
" SPL stands for sound pressure level and is also commonly referred to as efficiency and sensitivity."
I forgot to put the link, here goes :
Understanding SPL | Eminence Speaker
hi guys! here's my recent build. made these for a friend for his Jensen c855s!
those speakers are good! nearly as smooth as the p610s but with better bass!
* the finish is just simulated wood grain. because real wood veneer is too damn expensive here in the philippines and im trying to stay on a budget. cheers ya'll
those speakers are good! nearly as smooth as the p610s but with better bass!
* the finish is just simulated wood grain. because real wood veneer is too damn expensive here in the philippines and im trying to stay on a budget. cheers ya'll
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An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Very nice build, I know what are you talking about here in Philippines good wood is really expensive, I found after long research an importer that have Russian birch plywood 24mm, really nice but price was so high, I got it anyway because I need it for build my Fostex Back-Loaded Horn speaker. All the best
oh my! those are beatiful! simulate them in winisd to see how they do. although if you like how they sound. its not necessary! cheers!
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Pluvia 7 in mini Onken enclosures . No desire to change anything in this set up. Love how it's sounds in my 10' x 12' room . Most likely that these enclosures are not adequate for P7 but my ears telling me otherwise
salamat! nice! looking forward to see it here or in person ehehe cheers.
Very nice build, I know what are you talking about here in Philippines good wood is really expensive, I found after long research an importer that have Russian birch plywood 24mm, really nice but price was so high, I got it anyway because I need it for build my Fostex Back-Loaded Horn speaker. All the best