Kitty resistant is a big deal for me, I've had to attach my speakers to my stands because of an obstinate cat that insists my left speaker is the best route to the window ledge and it's met the ground a couple of times.
well, this is quite fundamental disagreement, with immense impact on practical speaker design principles, isn't it?
no, its not
wow, that was scary to see so many of my posts
😀there have been some questions about the possible actual height of such omni design
well, I think it may be related to physical angle of drivers
meaning, a higher placed driver may need to be angled more
and that to avoid diffusors 😉
Member
Joined 2009
The naked test
The talk about naked drivers on the floor made me want to experiment with two of the FR10's I got.
Tried them angled and flat on the ground against the front wall, but the best soundstage and height came from placing them at an angle in front of my speakers (about 2 1/4 meter distance from my chair).
What I noticed (at any position in front or next to the speaker) was a strong phantom center and deep, wide soundstage (with the exception of placing the drivers between the speakers, of course not so wide then). As long as the driver could radiate freely I could hear a 3D soundstage.
Height depended on the recording, some were at ear level, others more halfway to the ground. High frequencies were least compromised in height. It only seemed like sound coming directly from the drivers in the horizontal plain took a dive to the floor, anything outside that position had height (I think it has to do with extra distortion from turning up the bass, single instruments were fine).
Thinking about creating two small cubes with FR10's at 5 sides to hear what effect this has.
The talk about naked drivers on the floor made me want to experiment with two of the FR10's I got.
Tried them angled and flat on the ground against the front wall, but the best soundstage and height came from placing them at an angle in front of my speakers (about 2 1/4 meter distance from my chair).
What I noticed (at any position in front or next to the speaker) was a strong phantom center and deep, wide soundstage (with the exception of placing the drivers between the speakers, of course not so wide then). As long as the driver could radiate freely I could hear a 3D soundstage.
Height depended on the recording, some were at ear level, others more halfway to the ground. High frequencies were least compromised in height. It only seemed like sound coming directly from the drivers in the horizontal plain took a dive to the floor, anything outside that position had height (I think it has to do with extra distortion from turning up the bass, single instruments were fine).
Thinking about creating two small cubes with FR10's at 5 sides to hear what effect this has.
Attachments
Hi there, I'm new so if this is the wrong thread, my apologies in advance, however I plan on building a pair of Omni's and am on a tight budget, so I was wondering if anyone could recommend a full range speaker, which would be used in a 3x3.5m room on the end of a solid (probably ceramic) tube, about 1 metre high, with a reflector (probably exponential) on top. In future I'd like to make it 3 way or more, but for now, It will need to be 1 or 2 way.
try it japanese way: TIMEDOMAIN AUDIO
without any reflector, use this driver (eg.): hifisound eShop - VIFA 9 BG 119/8 - FIBRE GLAS N
good observations! now You are talking Markus! 😀
So, am I to understand that we can agree that some ASW is better for realistic sound reproduction than no ASW?
so the questions are:
1) which of room reflections are detrimental and why and what can be done?
2) reproduction of what kind of program material specifically will not benefit from a fixed amount of ASW?
3) can we somehow when designing speakers and their room interface adjust ASW to suit a specific program material or at least fix an amount of it suitable more or less for most program material?
I found a good tweeter for a multi-way "flooder":
Tang Band 28-1582 - Lautsprecher Selbstbau by blue planet acoustic
Nice housing, front plate removable, can be placed above the midrange without much reflection or diffraction, has enough sensitivity headroom for compensation.
Tang Band 28-1582 - Lautsprecher Selbstbau by blue planet acoustic
Nice housing, front plate removable, can be placed above the midrange without much reflection or diffraction, has enough sensitivity headroom for compensation.
For what it is worth, the MBL E MKII ($70,500) won this years The Absolute Sound - Golden Ear award for 2011.
But one must ask, does it sound good because it is an OMNI speaker, or because it costs $70,5000?
Steve/bluewizard
But one must ask, does it sound good because it is an OMNI speaker, or because it costs $70,5000?
Steve/bluewizard
Nothing energizes the room like MBL. The listening experience is unlike anything else in audio. Some MBL show demos are too loud, some have too much midbass, but its goodness still shines through every time.
Show attendees often look spellbound, mesmerized, mouths sometimes partially open to take in as much as possible. Some of the spellbound reaction may be related to the system cost and cosmetic effect, but IMO most of it is the sound effect. I know the following is ridiculous, but MBL sound almost more real than live music.
What is the secret? Omni aside, is there anything else?
That's a brave, or dangerous claim, indeed.
ps. Don't get me wrong. I've heard the speaker and also consider it's more than a brilliant commercial product....
Hmmm... I think, being omni, it radiates much wider than ordinary speakers in mid-high frequency range, so the ordinary SPL measurement might not tell the whole story.
Meantime, the sensitivity weak spot of almost all speakers is in bass, where MBL is using separate subs to take care of that.
So, its nominal low sensitivity might not be too big a problem if the space is not too big and/or too dead. The using of big amps (in most audio shows), I guess there's a certain portion of 'political' issues 😉
Meantime, the sensitivity weak spot of almost all speakers is in bass, where MBL is using separate subs to take care of that.
So, its nominal low sensitivity might not be too big a problem if the space is not too big and/or too dead. The using of big amps (in most audio shows), I guess there's a certain portion of 'political' issues 😉