OP
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- #481
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Sigberg Audio Saranna (fullrange, cardioid active floorstander) development thread
- Thread starter sigbergaudio
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Digital_Thor
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True, but the way you sum the frequency down to 200Hz was what surprised me. I would imagine that two woofers would not sum that nicely with any coax at just 30cm. I have always had this understanding that you needed to get a little further away to measure a multi-driver speaker, and make it sum smoothly.Well, it's easier at 30cm than 1m?
OP
- Thread Starter
- #483
That is true, but this is basically all coax, it plays almost full range. In the current configuration the woofers roll off from 180hz, and they cross with the coax at around 140hz.
The coax rolls off naturally and isn't highpassed until 80hz.
OP
- Thread Starter
- #484
Very much impressive and even exciting to see the first (preliminary?) SPL-FR data of the pre-production model(s)!
If it would be possible at this moment, could you please comment on the small dips at 9.3 kHz and 12.5 kHz in 0 deg plot which (both) seem to be much smaller in 15 deg and 30 deg?
If it would be possible at this moment, could you please comment on the small dips at 9.3 kHz and 12.5 kHz in 0 deg plot which (both) seem to be much smaller in 15 deg and 30 deg?
OP
- Thread Starter
- #486
Most coaxial drivers have some diffraction issues directly on-axis, which typically goes away when we move a bit off axis, as we see here. So this is of little concern since the speakers are both tilted back 4 degrees, and will also be tuned to be used with little toe-in, so that you will in practice be listening off-axis. In addition they are very high in frequency, so they will not be audible in practice.
Digital_Thor
Addicted to Fun and Learning
Ah.. I get it now. You cross just as low as the MOFI 888, leaving most of the upper frequencies to the coax, which also makes sense why you jumped to the 8".
Thank you indeed for your quick response.
Yes, fully understood and agreed with your comments; these are not only well expected points/comments but also validating your excellent 4-degree tilted design!
I am very much looking forward to seeing/learning further specs and data on wonderful Saranna...
OP
- Thread Starter
- #489
Thank you! Yes, there are preliminary specs and information on the product page in case you haven't seen that.
Saranna Full Range Floorstander (pair)
Saranna is for you if you want a speaker with: Deep, punchy bass without the need for subwoofers Exceptional clarity and nuance without listening fatigue An immersive and huge soundstage unlike anything you've ever heard. An ability to play loud and uncompressed even in large rooms. The option...
www.sigbergaudio.com
Thank you again!
Of course, I have been carefully looking/following the "progresses" of your coming-soon pages including the count-down clock-counter.
Of course, I have been carefully looking/following the "progresses" of your coming-soon pages including the count-down clock-counter.
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OP
- Thread Starter
- #491
And of course no phase shift between midrange and tweeter.
OP
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- #492
The Sigberg Audio Saranna will be presented for an audience (pre-production model) for the first time at the Oslo Hifishow on March 22-23rd 2025.
www.oslohifishow.no
OSLO HIFI SHOW | Oslo HiFi Show
www.oslohifishow.no
OP
- Thread Starter
- #493
Physical dimensions updated:
Dimensions (WHD):
284x1100x340 mm
Total height on included base with feet: 113,5cm (44.5 inches)
Weight:43kg probably 44-45kg per speaker including base.
Note also that both feet and base is optional to install, and the feet can also be installed directly on the speaker. So you have four configuration options:
Dimensions (WHD):
284x1100x340 mm
Total height on included base with feet: 113,5cm (44.5 inches)
Weight:
Note also that both feet and base is optional to install, and the feet can also be installed directly on the speaker. So you have four configuration options:
- Loudspeaker alone
- Loudspeaker with feet
- Loudspeaker with base
- Loudspeaker with base and feet
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OP
- Thread Starter
- #494
Still in no way finalized tuning, but the following adjustments has been done the last few days. This is mainly based on what subjectively sounds better to me and a couple of other listeners. The green is new. This is slightly less linear on paper, but sounds more natural and "right" (I understand some will disagree with this conceptually).
So more energy in the lower mids, and slightly less energy in the 2-4khz area. We might end up with some middle ground between these two, we shall see.
Reference axis / 15deg:
So more energy in the lower mids, and slightly less energy in the 2-4khz area. We might end up with some middle ground between these two, we shall see.
Reference axis / 15deg:
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DYes this is crazy but true considering that the Wilson audio Alexa5 has "off the shelf" drivers worth less than 5 000 dollar.
OP
- Thread Starter
- #496
To be fair sometimes the system is more than the sum of its parts. An expensive driver alone does not guarantee a good speaker.
And the cost of components is but a small part of the total development cost and production cost of a commercial speaker.
I am very much interested-in and impressed-by your on-going fine tuning of wonderful Saranna!Still in no way finalized tuning, but the following adjustments has been done the last few days. This is mainly based on what subjectively sounds better to me and a couple of other listeners. The green is new. This is slightly less linear on paper, but sounds more natural and "right" (I understand some will disagree with this conceptually).
So more energy in the lower mids, and slightly less energy in the 2-4khz area. We might end up with some middle ground between these two, we shall see.
Reference axis / 15deg:
View attachment 428229
Your "natural and right" subjective feeling/impression can be well understood and agreed at least by myself, and I am very much looking forward to seeing your Fq-SPL all over through 20 Hz to 20 kHz in a typical listening room acoustics; do you also subjectively prefer slightly higher gain in 50 Hz - 150 Hz zone at your listening position?
Just for my personal curiosity, I carefully compare your above Fq-SPL curve vs. my present/latest Fq-SPL of multichannel active system (mine is at listening position which is 3.3 m away from the surface of the SP system, L to R is 2 m, slightly off-axis, and includes room/furniture acoustic modes, ref. here #931 on my project thread).
Matt_Holland
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Your very subtle flavour in the green tuning looks to be a very sensible choice, especially if several trusted pairs of ears agree. I would much rather have a very slight mid prominent sound with the classic BBC dip to keep things smooth sounding for a listening speaker. Buchardt S400mk2 has a similar curve and sounds wonderfully warm and detailed with very realistic tones.
OP
- Thread Starter
- #499
I am very much interested-in and impressed-by your on-going fine tuning of wonderful Saranna!
Your "natural and right" subjective feeling/impression can be well understood and agreed at least by myself, and I am very much looking forward to seeing your Fq-SPL all over through 20 Hz to 20 kHz in a typical listening room acoustics; do you also subjectively prefer slightly higher gain in 50 Hz - 150 Hz zone at your listening position?
The way it is tuned now you will probably see somewhere around 5-7dB increase in the area you are talking about in-room. In addition to this there's a bass tilt that can be adjusted by the press of a button behind the speaker, that will either give you an additional 2dB lift, or a 2dB reduction in this area depending on what is needed for your room and/or taste.
I haven't decided the center frequency of this tilt preset yet, currently it's at 125hz, will probably a bit higher, maybe 200hz. It will also be user configurable if you connect to the speaker with a laptop. So you can change both the tilt frequency and gain.
OP
- Thread Starter
- #500
I've written article about both the SBS.1 system and the Manta system before, giving some background and detail into the design and design choices. Now the time has come for the Saranna:
www.sigbergaudio.com
Designing an active floorstander: The Saranna
In some ways, the Saranna represents our most ambitious loudspeaker project to date. The goal was to create a floorstander with the transparency and transient accuracy of a studio monitor while delivering the award winning full-range sound of our subwoofer-integrated systems. A speaker that is...
www.sigbergaudio.com
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