The datasheet of the SICA 12 SR 3 PL is not from the same revision as the one that was used for the sim.
What, the holes? I'd agree they are somewhat similar in effect to rounding, but I can't see circumventing baffle step.The concept provides an elegant way to deal with, or actually circumvent Baffle Step.
GM's comment about setting on the baffle is above my head, unless of course hes talking about the polar...which that might make sense. He tends to say things that are over my head.....=)
Correct, at approximately 1 WL across, the driver's at ~160 deg [not the theoretical 180 deg] where its polar response begins collapsing/beaming.
GM
I feel the holes in the waveguide are worth exploring.
The perforations at the edge of the horn are intended to prevent interference between horn and cone.
These, of course, have nothing to do with BSC.
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Genelec 8260A is a top-shelf FAST monitor. You guys call it a WAW, I think.
Genelec has been a benchmark in studio monitoring for decades, at least in Europe.
I worked with several of their smaller nearfield monitors in the past.
I may not be a 'nearfield type of guy', but I remember at the end of the day I was glad to switch those tiresome little ...kers off.
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Tiresome huh lol.....the Genelec 8260A has a coaxial top, I meant to point out.
What is this tiresome aspect? Flat voicing? You think my set-up will be so?
I can't say that I've ever experienced the phenomenon.
What is this tiresome aspect? Flat voicing? You think my set-up will be so?
I can't say that I've ever experienced the phenomenon.
That's not to discredit the Genelecs, because I know they are good.
It's a personal thing. I'm not a fan of nearfield monitoring in general and I'm not a fan of headphones either.
90% of the time I play tracks (DJ-ing) without headphones.
It's a personal thing. I'm not a fan of nearfield monitoring in general and I'm not a fan of headphones either.
90% of the time I play tracks (DJ-ing) without headphones.
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I always go back listening to my Genelecs, but that's mostly due to my crappy x-overs😎
These have got some nice reviews and are around 200Euro/piece
Test Selbstbauprojekt - Monacor K+T-Projekt Studio 10 - Seite 3
These have got some nice reviews and are around 200Euro/piece
Test Selbstbauprojekt - Monacor K+T-Projekt Studio 10 - Seite 3
That's not to discredit the Genelecs, because I know they are good.
It's a personal thing. I'm not a fan of nearfield monitoring in general and I'm not a fan of headphones either.
90% of the time I play tracks (DJ-ing) without headphones.
You must have a well designed room? Or at least a pleasant sounding one, if you are not doing any mixing/mastering
One of the allures of horns was the idea that I could increase my sound quality by decreasing the rooms feedback via the directionality of the horn.
Its been 2 months today since I put in my order to Acoustic Elegance, I sent an email to verify if another email would be sent, along with tracking information, when the time comes.
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It's a 'lively room' with natural damping here and there.
When producing I tend to sit further away from the monitors.
Horns are a great means to deal with room effects.
Ideally, you want horns fullrange and that's what I'll switch to in the future.
I'll probably end up with giant headphones 😉
When producing I tend to sit further away from the monitors.
Horns are a great means to deal with room effects.
Ideally, you want horns fullrange and that's what I'll switch to in the future.
I'll probably end up with giant headphones 😉
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In view of the Monitor 8.12, there are a number of interesting smaller details.
The top is closed and the bass bin is BR (inverted fase), rear ported and tilted backwards by 5°.
Quote:
"The manufacturer claims it makes the following acoustic sense:
While there's some marketing BS blended in the above statement, I personally also prefer a rear ported BR cab. Even more so with bigger cabinets.
The top is closed and the bass bin is BR (inverted fase), rear ported and tilted backwards by 5°.
Quote:
"The manufacturer claims it makes the following acoustic sense:
- Better coupling of woofer to floor which ‘repurposes’ the latter as a quasi bass horn.
- At typical listening distances both woofer and coax aim at the ear to better approach a single sound source and continue the coaxial point-source idea.
- Since the woofer fires upward a bit, its acoustic center coincides with that of the coax to invoke the usual key words of time alignment,
phase coherence and minimized group delay."
While there's some marketing BS blended in the above statement, I personally also prefer a rear ported BR cab. Even more so with bigger cabinets.
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The 8.12's woofer works to 150Hz, the coax’s midrange to 1.800Hz and the compression driver above. This applies to the 8.12 MK2, in which the SICA coaxial has been replaced by a Beyma unit (more on this later).
Butterworth and Bessel filters are used with electrical 12dB/octave slopes. Together with the mechanical driver roll-off this resluts in an acoustic 4th-order, which the manufacturer fancies for minimized driver overlap and good impulse response.
"The 25cm hard-hung paper diaphragm is mounted in an 80-liter enclosure.
The Manufacturer cites desirable room coupling to advice against free room placement. Half to a full meter of front wall proximity is optimal says he; and that it really doesn't sound like bass reflex. Particularly the low bass works better with rear ports as the speaker then acts as quasi bipole to make room modes less critical"
This quote, again, includes some bold claims. However, I tend to agree with the statement regarding the sound.
Butterworth and Bessel filters are used with electrical 12dB/octave slopes. Together with the mechanical driver roll-off this resluts in an acoustic 4th-order, which the manufacturer fancies for minimized driver overlap and good impulse response.
"The 25cm hard-hung paper diaphragm is mounted in an 80-liter enclosure.
The Manufacturer cites desirable room coupling to advice against free room placement. Half to a full meter of front wall proximity is optimal says he; and that it really doesn't sound like bass reflex. Particularly the low bass works better with rear ports as the speaker then acts as quasi bipole to make room modes less critical"
This quote, again, includes some bold claims. However, I tend to agree with the statement regarding the sound.
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One of the allures of horns was the idea that I could increase my sound quality by decreasing the rooms feedback via the directionality of the horn.
Yes, but........ this only works well when it's a LEDE room and 1st reflections > 500-1 kHz [depending on who you ask] are behind one's ears.
GM
Well if the beaming and directivity with a 26" jmlc horn is as they say, then it should be a notable difference versus a dynamic driver, specifically starting at the range you speak of.
As stated, for the 8.12 Mk2, the SICA 8 C 2 CP was replaced with the Beyma 8CX300Nd.
There's no doubt this is a higher end coax driver. I am not convinced it's actually 250% better.
Personally, I don't like the thick roll surround, even less for this coax. Together with the CONEX spider the Santoprene™surround contributes to the rather low Fs of 57Hz. This is useful for a small stand alone coax design, but unnecessary for the Monitor 8.12.
Member mtg90 of avsforum developed a custom XO for the Beyma which, judging from the graphs, looks promising (the 5th & 6th image shows the results).
Again, if I would clone the Monitor 8.12 Mk2, I wouldn't use the Eminence for woofer duties.
Some may consider this useless fetish/OCD, but I tend to choose drivers from the same manufacturer, especially if woofers are concerned.
My current system is a mixture of brands, so perhaps I am not that freaky?
Wrong!
With roll surrounds in the coaxes, there should be roll surrounds in the woofers as well.
Which is convenient, because Beyma offers a few of such 12" woofers that could potentially transform the 8.12 clone into a (near) fullrange system.
The Beyma 12B100R is similar to the older JBL pro woofers with foam roll srrounds.
There's no doubt this is a higher end coax driver. I am not convinced it's actually 250% better.
Personally, I don't like the thick roll surround, even less for this coax. Together with the CONEX spider the Santoprene™surround contributes to the rather low Fs of 57Hz. This is useful for a small stand alone coax design, but unnecessary for the Monitor 8.12.
Member mtg90 of avsforum developed a custom XO for the Beyma which, judging from the graphs, looks promising (the 5th & 6th image shows the results).
Again, if I would clone the Monitor 8.12 Mk2, I wouldn't use the Eminence for woofer duties.
Some may consider this useless fetish/OCD, but I tend to choose drivers from the same manufacturer, especially if woofers are concerned.
My current system is a mixture of brands, so perhaps I am not that freaky?
Wrong!
With roll surrounds in the coaxes, there should be roll surrounds in the woofers as well.
Which is convenient, because Beyma offers a few of such 12" woofers that could potentially transform the 8.12 clone into a (near) fullrange system.
The Beyma 12B100R is similar to the older JBL pro woofers with foam roll srrounds.
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Another nice coaxial, used in one of the latest products of the same manufacturer, is this Oberton 8NMB250VCX.
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Well if the beaming and directivity with a 26" jmlc horn is as they say, then it should be a notable difference versus a dynamic driver, specifically starting at the range you speak of.
Way more, but if the back of the room [the DE part of LEDE = live end/dead end] isn't diffuse/well damped it's these very late reflections that's going to provide the feedback.
GM
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