Hi,
this loudspeaker use Bandor Driver.
http://www.audience-av.com/loudspeakers/index.php
My Question is could anybody explain why the cabinet is open on the backside? Looks like to be a open for a bass reflex but this make no sense for me.
Anybody has a idea?
The bandor need only 2,54 Liters and a close cabinet.
Thanks for your help.
Josef
this loudspeaker use Bandor Driver.
http://www.audience-av.com/loudspeakers/index.php
My Question is could anybody explain why the cabinet is open on the backside? Looks like to be a open for a bass reflex but this make no sense for me.
Anybody has a idea?
The bandor need only 2,54 Liters and a close cabinet.
Thanks for your help.
Josef
why do you think it is open in the back ?
"The interior design of the ClairAudient has no parallel walls to cause standing wave resonance, a common form of coloration. The exterior is designed with round sides to improve dispersion and reduce baffle step response problems. The cabinet effects of the ClairAudient are virtually non-existent. "
looks ported to me.
I think there is something to the small stiff cone giving detail to the upper midrange and the lack of crossover effects.
The trouble is that at 13cm2, 4 of them have about the same area as 1 of the 4" tang band bamboo (57cm2).
I think there is a limit to how many you can stack vertically.
2 x 5" frame full range drivers seems good at 10-11'. So using more than 4 (2") would give the midrange a boost and the high end some cut (due to cancellation).
Bcherry ran 4 of the 2" jordans in a frame touching vert array.
"The 4 driver array is singing happily for the past few months. The combing effect is not noticeable."
then 9 ran
"The 9 drivers give much improved dynamics (in our room compared to the 4driver array) and excellent coherence as they are driven 100hz to their hf limit.
They needed compensation to tame a midrange bulge so some of the efficiency gain of a line array is lost but our 300B drive them comfortably in our largish room.
I would describe the sound as very silky smooth and and high resolution.
Combing and lobing are noticeable as you move around; the stereo image shifts as you move laterally and hfs drop out when moing vertically so listening requires staying within a narrow sweet spot. "
I'm thinking of running 4 of the $17 (u.s.) peerless 2" drivers and maybe a bit of eq on top, then rolling out below 300hz.
Norman
"The interior design of the ClairAudient has no parallel walls to cause standing wave resonance, a common form of coloration. The exterior is designed with round sides to improve dispersion and reduce baffle step response problems. The cabinet effects of the ClairAudient are virtually non-existent. "
looks ported to me.
I think there is something to the small stiff cone giving detail to the upper midrange and the lack of crossover effects.
The trouble is that at 13cm2, 4 of them have about the same area as 1 of the 4" tang band bamboo (57cm2).
I think there is a limit to how many you can stack vertically.
2 x 5" frame full range drivers seems good at 10-11'. So using more than 4 (2") would give the midrange a boost and the high end some cut (due to cancellation).
Bcherry ran 4 of the 2" jordans in a frame touching vert array.
"The 4 driver array is singing happily for the past few months. The combing effect is not noticeable."
then 9 ran
"The 9 drivers give much improved dynamics (in our room compared to the 4driver array) and excellent coherence as they are driven 100hz to their hf limit.
They needed compensation to tame a midrange bulge so some of the efficiency gain of a line array is lost but our 300B drive them comfortably in our largish room.
I would describe the sound as very silky smooth and and high resolution.
Combing and lobing are noticeable as you move around; the stereo image shifts as you move laterally and hfs drop out when moing vertically so listening requires staying within a narrow sweet spot. "
I'm thinking of running 4 of the $17 (u.s.) peerless 2" drivers and maybe a bit of eq on top, then rolling out below 300hz.
Norman
Hi Norman,
thank you for the answer.
You mean if I take more then 4 drivers I have a problem?
I thought to build the same Loudspeaker as Audience but with 16 or 24 driver from Bandor/Jordan.
The reason why is i have a big room.
it is very interesting for me to hear what experience you have with such line arrays.
regards
Josef
thank you for the answer.
You mean if I take more then 4 drivers I have a problem?
I thought to build the same Loudspeaker as Audience but with 16 or 24 driver from Bandor/Jordan.
The reason why is i have a big room.
it is very interesting for me to hear what experience you have with such line arrays.
regards
Josef
Bad idea from a technical POV to have a long, straight array of FR drivers. Ideally, you want the center-to-center spacing between drivers to be no greater apart than 1 wavelength of the highest frequency to be reproduced. When you move beyond that, you'll run into problems with the outputs of the drivers lobing, causing deep nulls in the response (comb-filtering) and attenuation.
So, for sake of argment, take a 3in driver, which will nominally mean a 3in center-to-center spacing (usually a bit more due to the frame). 3in = approximately 1 wavelength at 4.5KHz, so you will start to see this lobing occur at this point, & getting progressively worse as frequency rises. For a 2in driver, it will start at about 6.75KHz. And so on. You could Eq the general trend ~flat, & hope you won't notice the nulls / roughness in the response. The brain is a remarkable thing & can filter some of this out on-axis, but off-axis it's likely to sound very phasey.
So, for sake of argment, take a 3in driver, which will nominally mean a 3in center-to-center spacing (usually a bit more due to the frame). 3in = approximately 1 wavelength at 4.5KHz, so you will start to see this lobing occur at this point, & getting progressively worse as frequency rises. For a 2in driver, it will start at about 6.75KHz. And so on. You could Eq the general trend ~flat, & hope you won't notice the nulls / roughness in the response. The brain is a remarkable thing & can filter some of this out on-axis, but off-axis it's likely to sound very phasey.
my experience ?
never built one.
I heard a 3 way with 3' line of 1/2" tweeters and didn't like it (20' away).
The guitar seemed 3' tall !!!!!!!!
bothersome to me but not to many.
Panels now set me off too with their tall sound.
My favorite article to reference is the kuze array 32 x 2" tang bands
http://www.partsexpress.com/projectshowcase/Kuze3201/Kuze3201.html
"Just for informational purposes, the frequency response without smoothing. The jagged response that begins at 5K and worsens at higher frequencies is result of comb filtering, a very real measured problem. The step response of the system--note the single large step. This shows good phase coherency within the speaker. Unfortunately, the jagged nature of the step reflects the different arrival times of the impulse from varying driver distances......Several people noted that the high-frequency reproduction lacked some "life" and "air". This could be attributed to the comb filtering problems that definitely were occurring."
The brain hears a smear due to the different arrival times.
"Here Dmitry subjectivly describes the effect:
"I added 2 more speakers and confirmed what I have already heard with 4-element array: high-frequency roll-off."
here is what I think the holy grail for a full range driver array (no crossovers)
http://www.geocities.com/dmitrynizh/labaffles.htm
some say that comb filtering is untrue
http://www.ids25.com/
Linkwitz on the pipe dreams
" Their sound is big and close up. Like watching Patricia Barber's lips move on a large movie screen."
http://www.linkwitzlab.com/design_of_loudspeakers.htm
I like this one here.........
see here in frame #12
http://av123forum.com/showthread.php?s=&threadid=10817
"it did quite well. As soon as you stood up, though, the soundstage collapsed completely."
I thought it would sound tall (as in mouth is a few feet tall) but was assured by maker
"My speakers never seem tall, if I understand what you're saying."
but
only 1 sweet spot where sound is good.
Don't be too close or too far, and if you slouch your highs vanish.
and a bunch of 2-3" drivers (even a 6.5") will sound blurry on my music (gorillaz) unless crossed to a 12 near 200hz.
My opinion, your mileage may vary.
Norman
never built one.
I heard a 3 way with 3' line of 1/2" tweeters and didn't like it (20' away).
The guitar seemed 3' tall !!!!!!!!
bothersome to me but not to many.
Panels now set me off too with their tall sound.
My favorite article to reference is the kuze array 32 x 2" tang bands
http://www.partsexpress.com/projectshowcase/Kuze3201/Kuze3201.html
"Just for informational purposes, the frequency response without smoothing. The jagged response that begins at 5K and worsens at higher frequencies is result of comb filtering, a very real measured problem. The step response of the system--note the single large step. This shows good phase coherency within the speaker. Unfortunately, the jagged nature of the step reflects the different arrival times of the impulse from varying driver distances......Several people noted that the high-frequency reproduction lacked some "life" and "air". This could be attributed to the comb filtering problems that definitely were occurring."
The brain hears a smear due to the different arrival times.
"Here Dmitry subjectivly describes the effect:
"I added 2 more speakers and confirmed what I have already heard with 4-element array: high-frequency roll-off."
here is what I think the holy grail for a full range driver array (no crossovers)
http://www.geocities.com/dmitrynizh/labaffles.htm
some say that comb filtering is untrue
http://www.ids25.com/
Linkwitz on the pipe dreams
" Their sound is big and close up. Like watching Patricia Barber's lips move on a large movie screen."
http://www.linkwitzlab.com/design_of_loudspeakers.htm
I like this one here.........
see here in frame #12
http://av123forum.com/showthread.php?s=&threadid=10817
"it did quite well. As soon as you stood up, though, the soundstage collapsed completely."
I thought it would sound tall (as in mouth is a few feet tall) but was assured by maker
"My speakers never seem tall, if I understand what you're saying."
but
only 1 sweet spot where sound is good.
Don't be too close or too far, and if you slouch your highs vanish.
and a bunch of 2-3" drivers (even a 6.5") will sound blurry on my music (gorillaz) unless crossed to a 12 near 200hz.
My opinion, your mileage may vary.
Norman
dang it scott !!!!!!!!!
ya snuck in while I was typing !!!!!!!!!!!
lol,
I've got to work on writing shorter answers.
Norman
ya snuck in while I was typing !!!!!!!!!!!
lol,
I've got to work on writing shorter answers.
Norman
I believe 7th veil is out of business.
I can't find reviews (i have some somewhere) online nor website
Seems that tricky enclosure was costly to make (driving price up).
similar to this but taller and jagged internal spikes.
http://audiorevelation.com/cre/product_info.php?manufacturers_id=21&products_id=80
8 bandors aren't exactly cheap let alone making pretty enclosures.
7th veil had said it was the only enclosure that came close to open baffle mids clarity.
Otherwise at a lower price point, I think they could have worked.
They came with a bass module I think.
Then again I've seen some nice speakers get fabulous reviews and still go under (galante rhapsode, nice coax using maybe radians)
http://www.enjoythemusic.com/magazine/equipment/1101/rhapsody.htm
http://www.enjoythemusic.com/magazine/equipment/0702/galanteaudio.htm
Norman
I can't find reviews (i have some somewhere) online nor website
Seems that tricky enclosure was costly to make (driving price up).
similar to this but taller and jagged internal spikes.
http://audiorevelation.com/cre/product_info.php?manufacturers_id=21&products_id=80
8 bandors aren't exactly cheap let alone making pretty enclosures.
7th veil had said it was the only enclosure that came close to open baffle mids clarity.
Otherwise at a lower price point, I think they could have worked.
They came with a bass module I think.
Then again I've seen some nice speakers get fabulous reviews and still go under (galante rhapsode, nice coax using maybe radians)
http://www.enjoythemusic.com/magazine/equipment/1101/rhapsody.htm
http://www.enjoythemusic.com/magazine/equipment/0702/galanteaudio.htm
Norman
IIRC 7th Veil went belly up at the end of last year, unfortunately (always sad to see that sort of thing happen). Steve, the bloke who owned it, is still a memeber here, but hasn't posted for a couple of years. They did indeed come with a bass module -see attached. I think they intended a version with 8 drivers; whether that ever emerged or not as a production cabinet I don't know. A big problem is the price of Bandor / Jordan drivers of course; production runs are always short, so no economies of scale working in favour of lower pricing, and to use Jordan units as an example, they cost literally double in the UK what they do in the North Americas. That cabinet, if they were build out of layers of ply like that, would have been hellish expensive too, even at trade-prices, you're not kidding about that. Lots of waste material too.
Either way, I'm not sold on the notion of 8 of them per cabinet -that's getting into the realms of going out & looking for trouble IMO, exacerbating the potential lobing issues, expecially off-axis, unless you go for a focused array.
Nearfield arrays in themselves, don't really sound 'tall' per se, or at least, not to my way of thinking, providing you actually stay within the nearfield. It's just a case that, with a well designed one at any rate, the sound doesn't change, whatever height you happen to listen at (say, if you stand up). So they're a bit like a ruddy great big set of headphones in that respect. The actual scale of the sound produced does take a bit of getting used to though. A curved / focused array acts like a point source in that it has a vertical sweet-spot & the sound will change if you move.
Eq-ing the bass up as Roger Russell does should make an array of small units quite good even in the LF, assuming a large number are used, given their considerable total radiating CSA, although using so many instantly causes problems elsewhere as we both know -no free lunches in audio, sadly.
Either way, I'm not sold on the notion of 8 of them per cabinet -that's getting into the realms of going out & looking for trouble IMO, exacerbating the potential lobing issues, expecially off-axis, unless you go for a focused array.
Nearfield arrays in themselves, don't really sound 'tall' per se, or at least, not to my way of thinking, providing you actually stay within the nearfield. It's just a case that, with a well designed one at any rate, the sound doesn't change, whatever height you happen to listen at (say, if you stand up). So they're a bit like a ruddy great big set of headphones in that respect. The actual scale of the sound produced does take a bit of getting used to though. A curved / focused array acts like a point source in that it has a vertical sweet-spot & the sound will change if you move.
Eq-ing the bass up as Roger Russell does should make an array of small units quite good even in the LF, assuming a large number are used, given their considerable total radiating CSA, although using so many instantly causes problems elsewhere as we both know -no free lunches in audio, sadly.
true, I'd always hoped the 7th veil would make it.
Actually they had 4 drivers per side.
I'd read most every post he'd made.
He understood the "full range magic" that we do.
I got tired of everyone saying "roll off the top and bottom one." If you did that you'd only have 2 2" drivers doing voice instead of 4.
I'd been posting on audioasylum with a fellow called bcherry, he ran 4 of the jordans edge to edge.
jordan JXr 6HD
"The 4 driver array is singing happily for the past few months. The combing effect is not noticeable."
"Yes these are smooth like ribbons, except they play almost full range; the moving mass is only a bit more than a gram. Very SET-like sound."
"The net volume of the box is 16L, sealed and starts to roll off ~150hz. "
"I'm using 12ohms/2u2 (tuned by ear) and it's 80% there." (to boost highs)
Then he made a 9 array
http://db.audioasylum.com/cgi/m.mpl?forum=diyhifi&n=7095&highlight=array+bcherry&r=&session=
"I ran them in a couple weeks, but never found the highs to be rough; it was more a case of them opening up and becoming more extended and relaxed as they ran in. It is a very smooth driver and very revealing, more like a ribbon than a cone in performance."
"The 9 drivers give much improved dynamics (in our room compared to the 4driver array) and excellent coherence as they are driven 100hz to their hf limit. They needed compensation to tame a midrange bulge so some of the efficiency gain of a line array is lost but our 300B drive them comfortably in our largish room. I would describe the sound as very silky smooth and and high resolution. Combing and lobing are noticeable as you move around; the stereo image shifts as you move laterally and hfs drop out when moing vertically so listening requires staying within a narrow sweet spot....I'm thinking of adding a single ribbon tweeter (a Jordan would be better but a Fountek ribbon would pretty well match the system in efficiency) crossed over at about 6K (where combing becomes noticeable) to see if the hf issues can be resolved."
""The Jordans' cover 100hz to 25k so this is fullrange sound with bass augmentation. Voices are so smooth and violins tones richly textured.""
I think the 2" peerless v-lines 830970 for u.s. $19 each can work.
http://www.madisound.com/catalog/product_info.php?cPath=45_229_250&products_id=8267
with 13cm2 per 2", 4 would have the same area as my 4" tang band bamboo (57cm2).
I'd imagine the 2" would have more detail but less bass especially with a 1.5 gram cone vs 3.5 gram bamboo.
Maybe in a couple of months I'll order some then in a couple of years actually get them in a box !!!!!!!! lol
I'd seen even a nearfield line array owner comment that his can sound tall. He's running the selah audio with almost floor to ceiling ribbons. Just not my cup of tea.
On the ids-25, eqing up the bass is an option as 25 drivers can have a bit more area and move a whole lot less than 1. And that's less boxes to tolerate in a room. Apparently he doesn't think combing is real and has been designing array for mcintosh for years. Seems a shame because if he ran a bass module, the midrange would be much more detailed and clean.
I'd always wanted to make a focused array and straight array (with eq) and bring it as a show and tell to a local diy show. And flip back and forth and let other people write their comments.
But I am a huge fan of focused arrays regardless of the drawbacks.
If you've been following me and my journey, I think a 6.5" or a bunch of smaller full range drivers to equal to close to the same area in a small focused array, then cross that/them at 200hz at 24db/octave LR to a 12". But how do you cross ? That's a whole nother can of worms.
I like the 6.5" thiel 2 way with the bass knob turned way down and also running a 80hz f-mod into another amplifier to drive the 12". If I hitting the loudness button on the thiels run wide open, any bass modulates the midrange too much for my tastes. But my system is not done yet. I'm seeking more detailed midrange (my w3-871s was better there in an open baffle).
Norman bates
Actually they had 4 drivers per side.
I'd read most every post he'd made.
He understood the "full range magic" that we do.
I got tired of everyone saying "roll off the top and bottom one." If you did that you'd only have 2 2" drivers doing voice instead of 4.
I'd been posting on audioasylum with a fellow called bcherry, he ran 4 of the jordans edge to edge.
jordan JXr 6HD
"The 4 driver array is singing happily for the past few months. The combing effect is not noticeable."
"Yes these are smooth like ribbons, except they play almost full range; the moving mass is only a bit more than a gram. Very SET-like sound."
"The net volume of the box is 16L, sealed and starts to roll off ~150hz. "
"I'm using 12ohms/2u2 (tuned by ear) and it's 80% there." (to boost highs)
Then he made a 9 array
http://db.audioasylum.com/cgi/m.mpl?forum=diyhifi&n=7095&highlight=array+bcherry&r=&session=
"I ran them in a couple weeks, but never found the highs to be rough; it was more a case of them opening up and becoming more extended and relaxed as they ran in. It is a very smooth driver and very revealing, more like a ribbon than a cone in performance."
"The 9 drivers give much improved dynamics (in our room compared to the 4driver array) and excellent coherence as they are driven 100hz to their hf limit. They needed compensation to tame a midrange bulge so some of the efficiency gain of a line array is lost but our 300B drive them comfortably in our largish room. I would describe the sound as very silky smooth and and high resolution. Combing and lobing are noticeable as you move around; the stereo image shifts as you move laterally and hfs drop out when moing vertically so listening requires staying within a narrow sweet spot....I'm thinking of adding a single ribbon tweeter (a Jordan would be better but a Fountek ribbon would pretty well match the system in efficiency) crossed over at about 6K (where combing becomes noticeable) to see if the hf issues can be resolved."
""The Jordans' cover 100hz to 25k so this is fullrange sound with bass augmentation. Voices are so smooth and violins tones richly textured.""
I think the 2" peerless v-lines 830970 for u.s. $19 each can work.
http://www.madisound.com/catalog/product_info.php?cPath=45_229_250&products_id=8267
with 13cm2 per 2", 4 would have the same area as my 4" tang band bamboo (57cm2).
I'd imagine the 2" would have more detail but less bass especially with a 1.5 gram cone vs 3.5 gram bamboo.
Maybe in a couple of months I'll order some then in a couple of years actually get them in a box !!!!!!!! lol
I'd seen even a nearfield line array owner comment that his can sound tall. He's running the selah audio with almost floor to ceiling ribbons. Just not my cup of tea.
On the ids-25, eqing up the bass is an option as 25 drivers can have a bit more area and move a whole lot less than 1. And that's less boxes to tolerate in a room. Apparently he doesn't think combing is real and has been designing array for mcintosh for years. Seems a shame because if he ran a bass module, the midrange would be much more detailed and clean.
I'd always wanted to make a focused array and straight array (with eq) and bring it as a show and tell to a local diy show. And flip back and forth and let other people write their comments.
But I am a huge fan of focused arrays regardless of the drawbacks.
If you've been following me and my journey, I think a 6.5" or a bunch of smaller full range drivers to equal to close to the same area in a small focused array, then cross that/them at 200hz at 24db/octave LR to a 12". But how do you cross ? That's a whole nother can of worms.
I like the 6.5" thiel 2 way with the bass knob turned way down and also running a 80hz f-mod into another amplifier to drive the 12". If I hitting the loudness button on the thiels run wide open, any bass modulates the midrange too much for my tastes. But my system is not done yet. I'm seeking more detailed midrange (my w3-871s was better there in an open baffle).
Norman bates
Yes, I know. That's why I said 'I think they intended a version with 8 drivers; whether that ever emerged or not as a production cabinet I don't know.'
Seen it many times. Not a nearfield array unless you're about 12in from the drivers. Different set of requirements.
The 9 driver version was heavily covered here some time ago, with the FR plot provided showing the HF drop-off due to the lobing outputs & remarks upon the phase issues off-axis etc.
Depends what's meant by it. There is little sense of height to the soundstage with an array.
That's what I said.
http://www.roger-russell.com/columns/combfilter2.htm
There's some truth there to be sure. Only problem with this is, when compared to something where combing is effectively not present, it's easy enough to tell the difference. As for the midrange, well, that's down to opinion.
I'm not sure they have many sonic drawbacks, assuming they're designed properly & you don't over-focus them, which can result in the head-in-a-vice effect. It's just a balancing act, that's all. The main problem is people don't always realise that a curved array & a straight array are very different animals.
Sounds reasonable enough. Active XO would seem the logical approach.
huge line arrays to me always remembers me of the first time I saw a triple big mac in Thailand.
An old PA system that Cain and Cain and I built once made constructive use of comb filtering, but at roughly 1000hz rolloff from one driver to the next. The ear is not as sensitive to the effects of this in this region it seems as in the "grittier" frequencies above.
This acoustic/comb filtering/whateverthehellwashappening crossover required incredibly careful tuning. But vocals had an errie presence. Great for Jazz shows.
Also, there is an old nagaoka design called the cobra or something using two Fostex FE83e per channel. these are mounted side by side. This had a nice effect, IMO. Double quarter pounder with cheeze... been in Japan too long! (not that I really go for macdonalds anyways...)
-Clark
An old PA system that Cain and Cain and I built once made constructive use of comb filtering, but at roughly 1000hz rolloff from one driver to the next. The ear is not as sensitive to the effects of this in this region it seems as in the "grittier" frequencies above.
This acoustic/comb filtering/whateverthehellwashappening crossover required incredibly careful tuning. But vocals had an errie presence. Great for Jazz shows.
Also, there is an old nagaoka design called the cobra or something using two Fostex FE83e per channel. these are mounted side by side. This had a nice effect, IMO. Double quarter pounder with cheeze... been in Japan too long! (not that I really go for macdonalds anyways...)
-Clark
I'm sorry to hear about 7th Veil - I heard their original design at one of the Penta shows and thought it had great promise.
There seems to be this temptation on the part of anyone who produces a speaker using Bandor or Jordan drivers to go for an expensive, complex cabinet. Either the shape is expensive or the materials are unconventional (plaster coated aluminium anyone?). Aurousal are doing better by going for a bog-standard MDF reflex.
Regarding the line array aspect, the Jordans (and Bandor I assume) are designed with this in mind but I think the aim is to produce something which sounds like one, narrow driver. I've mentioned before that the only combing effect I've heard with them is loss of HF when standing above the array. When I tried this, I was listening within 10 feet of the enclosures so farther away may reduce the effect.
I wonder what became of Pentachord, who used two Bandors per enclosure? I tried this with the JXR6s and it is a good combination - filling out the upper bass weight of these little drivers and no combing.
There seems to be this temptation on the part of anyone who produces a speaker using Bandor or Jordan drivers to go for an expensive, complex cabinet. Either the shape is expensive or the materials are unconventional (plaster coated aluminium anyone?). Aurousal are doing better by going for a bog-standard MDF reflex.
Regarding the line array aspect, the Jordans (and Bandor I assume) are designed with this in mind but I think the aim is to produce something which sounds like one, narrow driver. I've mentioned before that the only combing effect I've heard with them is loss of HF when standing above the array. When I tried this, I was listening within 10 feet of the enclosures so farther away may reduce the effect.
I wonder what became of Pentachord, who used two Bandors per enclosure? I tried this with the JXR6s and it is a good combination - filling out the upper bass weight of these little drivers and no combing.
thanks collin,
I love to hear people's opinion on the 7th veil.
I know the jordans have a rising response that helps out with the combing.
"These are 'concert speakers'. Lobing doesn't take place, provided:
1. The listener is seated so that his ears are roughly on a level with the middle of the drive units. Stand and you will lose high frequency response.
2. The listener is 4 feet or more from the speakers."
"The treble is one of the strongest features of the system. It's totally seamless in a way that cannot be obtained by a speaker that swaps over to a tweeter, particularly one with totally different sonic characteristics such as a dome tweeter."
"Also, 1 meter away is too close. My theoretical results (above) are for a distance of 3m. At 1m you will get considerably more comb filtering. "
Full range, no crossovers, same speed material doing mids and highs, and excellent detail from the small stiff drivers.
crossed at 100hz.
"Well, they were expensive to make because I had them built from CNC routed MDF slices......"
The inside was very jagged to help break up standing waves, outside nice and rounded, and I think there was a bit of standing wave loading.
I think I may get 4 of the peerless 2" close to xmass and report back to yous here in a couple years, lol. I'd imagine crossed over will help clean it up and the upper midrange detail should be great. Problem is 4 of these drivers have same area as 1 4" tang band bamboo.
Norman
I love to hear people's opinion on the 7th veil.
I know the jordans have a rising response that helps out with the combing.
"These are 'concert speakers'. Lobing doesn't take place, provided:
1. The listener is seated so that his ears are roughly on a level with the middle of the drive units. Stand and you will lose high frequency response.
2. The listener is 4 feet or more from the speakers."
"The treble is one of the strongest features of the system. It's totally seamless in a way that cannot be obtained by a speaker that swaps over to a tweeter, particularly one with totally different sonic characteristics such as a dome tweeter."
"Also, 1 meter away is too close. My theoretical results (above) are for a distance of 3m. At 1m you will get considerably more comb filtering. "
Full range, no crossovers, same speed material doing mids and highs, and excellent detail from the small stiff drivers.
crossed at 100hz.
"Well, they were expensive to make because I had them built from CNC routed MDF slices......"
The inside was very jagged to help break up standing waves, outside nice and rounded, and I think there was a bit of standing wave loading.
I think I may get 4 of the peerless 2" close to xmass and report back to yous here in a couple years, lol. I'd imagine crossed over will help clean it up and the upper midrange detail should be great. Problem is 4 of these drivers have same area as 1 4" tang band bamboo.
Norman
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