jonasp skrev:RogerGustavsson skrev:Jo, det ser ut som Jörgen på Ultimate. Jag lade ut denna vid tillfälle: http://user.faktiskt.io/RogerGustavsson ... degeer.pdf
Tack för den artikeln!Rolig läsning.
+1 Jättefin artikel.
Moderator: Redaktörer
jonasp skrev:RogerGustavsson skrev:Jo, det ser ut som Jörgen på Ultimate. Jag lade ut denna vid tillfälle: http://user.faktiskt.io/RogerGustavsson ... degeer.pdf
Tack för den artikeln!Rolig läsning.
jonasp skrev:RogerGustavsson skrev:Jo, det ser ut som Jörgen på Ultimate. Jag lade ut denna vid tillfälle: http://user.faktiskt.io/RogerGustavsson ... degeer.pdf
Tack för den artikeln!Rolig läsning.
RJohan skrev:jonasp skrev:RogerGustavsson skrev:Jo, det ser ut som Jörgen på Ultimate. Jag lade ut denna vid tillfälle: http://user.faktiskt.io/RogerGustavsson ... degeer.pdf
Tack för den artikeln!Rolig läsning.
Citat ur artikeln:
'Under militärtjänsten var han elmekaniker inom flygvapnet och arbetade bland annat med Drakenflyg, som ju är en 50-talskonstruktion och fullproppad med elektronrör.'
En annan fick springa runt i skogen istället. Men, för allan del, jag slapp ju släpa på den svintunga rörbestyckade radion, så varför klaga...
Didrik byggde väl några duktigt stora steg till Polarstudions graververk på 80-talet? Undra var de tog vägen?
SVT skrev:Allan Pettersson, en av 1900-talets främsta svenska tonsättare, är kanske mest känd för sina sorgliga sånger och sin kultförklarade sjunde symfoni.
Hans allra första symfoni blev aldrig färdigställd och tonsättaren såg till att den aldrig fick framföras under hans livstid. Detta trots att han kallade sin första publicerade symfoni för "Den andra symfonin".
Men 2010, trettio år efter tonsättarens bortgång, sammanställdes skisserna från den första symfonin och fick premiär med Norrköpings symfoniorkester under ledning av dirigenten Christian Lindberg.
Wiki skrev:Amar Gopal Bose (November 2, 1929 – July 12, 2013) was an American entrepreneur and academic. An electrical engineer and sound engineer.
He was a Professor at the Massachusetts Institute of Technology (MIT) for over 45 years.
He was also the founder and chairman of Bose Corporation.
Amar came to the conclusion that the audio system measurement techniques of the time (such as measuring distortion and frequency response) were not effective ways to evaluate the goal of natural sound reproduction. Amar argued that the best measure of audio quality is the listener's perception.
Baffel skrev:... Eller så kan man ju kontakt med säljaren .![]()
(Nix inte mina )
STDI skrev:Baffel skrev:... Eller så kan man ju kontakt med säljaren .![]()
(Nix inte mina )
Hur kontaktar man försäljaren vid en avslutad auktion?
STDI skrev:Baffel skrev:... Eller så kan man ju kontakt med säljaren .![]()
(Nix inte mina )
Hur kontaktar man försäljaren vid en avslutad auktion?
Prozac skrev:STDI skrev:Baffel skrev:... Eller så kan man ju kontakt med säljaren .![]()
(Nix inte mina )
Hur kontaktar man försäljaren vid en avslutad auktion?
Här var ett par till. Endast avhämtning i Malmö tyvärr. Har själv hört 901or på en bar i Portugal när en trubadur använde 901or som PA och körde lite covers inför turisterna. Det funkade men det var mer Fun-fi än Hi-fi.
https://www.tradera.com/item/170301/425 ... m-category
(sorry för OT)
petersteindl skrev:Nu finns det modern test på Bose 901 med moderna mätningar och en synnerligen seriös ansats. Det är kul att se.
https://www.erinsaudiocorner.com/loudspeakers/bose_901_series_v/
Jag har inte läst texten ännu, bara tittat på bilder. Men det verkar jättekul.![]()
MacBruce skrev:petersteindl skrev:Nu finns det modern test på Bose 901 med moderna mätningar och en synnerligen seriös ansats. Det är kul att se.
https://www.erinsaudiocorner.com/loudspeakers/bose_901_series_v/
Jag har inte läst texten ännu, bara tittat på bilder. Men det verkar jättekul.![]()
Jag har: "All of that said, in general, Bose products do sound like shit. "Det var sammanfattningen av introduktionen.
Erin's audio corner skrev:Note: I don’t generally audition speakers with the typical “audiophile” music. I have thousands of high-quality albums ranging from pop to metal to jazz and all around.
I don’t typically listen to “audiophile” music because I just don’t enjoy it. It is far more important that your evaluation music be something you are familiar with than it is to be esoteric for the sake of being esoteric. You also want to listen to music you enjoy because auditioning a stereo system shouldn’t feel like a chore. Such is the case in my evaluations. Besides, the subjective evaluation is purely to help tie to the objective data and make sense of what I am hearing to help you all get an understanding of how relevant the data is. As you will see below, my music selection did a great job at providing enough range for me to identify the issues that readily appear in the data.
Subjective Analysis Setup:
The EQ was always in-line in my listening sessions. I only measured them without to get an idea of the raw speaker performance. But I listened to them with the EQ.
I listened to these various ways: with the speakers near the side wall, with the speakers 3 feet from the sidewalls. With and without Dirac Live. I will make notes where applicable to define the specific listening conditions.
I used Room EQ Wizard (REW) and my calibrated MiniDSP UMIK-1 to get the volume on my AVR relative to what the actual measured SPL was in the MLP (~11 feet from the speakers). I varied it between 85-90dB, occasionally going up to the mid 90’s to see what the output capability was. In a poll I found most listen to music in this range.
I listened to these speakers and made my subjective notes before I started measuring objectively. I did not want my knowledge of the measurements to influence my subjective opinion. This is important because I want to try to correlate the objective data with what I hear in my listening space in order to determine the validity of the measurement process. I try to do a few listening sessions over a couple days so I can give my ears a break and come back “fresh”.
I decided that I liked the almost-neutral setting where the difference was just a touch lower on the MidBass slider and a touch more on the MidTreble slider which is the orange line above.
The imaging and soundstage of this speaker is like nothing I’ve ever heard before. It doesn’t immerse you. But it immerses the area where the speakers are. Typically a soundstage will extend to the side, frontwards and backwards of the speaker. But only with certain music does the soundstage really expand (as it should, of course).
However, with the 901’s the soundstage is deep and wide on everything I threw at it. It still changed the size depending on the recording, though.
Seating position practically doesn’t matter.
I know we all talk about speakers having a wide sweet spot. Well, these don’t even have a sweet spot. When I sat in the side chairs of my front row the vocalist still came from between the two speakers. I would hear things now and again where the vocalists’ voice would move at a certain frequency. But compared to what happens when you move a seat over; where the vocalist follows you… well, the 901’s do not do that. The center stays at the center (for the most part).
It’s mind-boggling.
I switched the Philharmonic BMR speakers back in for these and was quickly reminded of everything the Bose 901’s do wrong.
But I was also reminded of everything a conventional speaker just cannot do.
Look, this speaker isn’t a speaker you buy for accuracy. This is the speaker you buy because you’re looking for something different.
I honestly was enamored with what they do.
It was so wildly different than anything I’ve heard before that, at first, I pretty much ignored all its flaws (and there are some big ones).
The soundstage is crazy big. The sound comes from everywhere in front of you, but still does a good job of having good image placement. It’s not a “wall of sound”. It’s a “prism of sound”. It’s not 2-D (and, really, even some of the best speakers still don’t render a 3-D space). The 901 isn’t even 3-D. It’s 4-D. Heck, it’s 6-D. It’s a total mind trip.
But the tonality is a wreck. Dirac Live fixed that up well for me, though. Unfortunately, there’s no way to get around the considerably high distortion and SPL limitations.
I wonder how a design like this could be made to sound if you just replace the front full range speaker with a modern 5-inch midrange and tweeter.
. . . So, ask around… you probably have a friend with a pair that would be happy to let you hear what this whole direct/reflecting thing is all about.
petersteindl skrev:MacBruce skrev:petersteindl skrev:Nu finns det modern test på Bose 901 med moderna mätningar och en synnerligen seriös ansats. Det är kul att se.
https://www.erinsaudiocorner.com/loudspeakers/bose_901_series_v/
Jag har inte läst texten ännu, bara tittat på bilder. Men det verkar jättekul.![]()
Jag har: "All of that said, in general, Bose products do sound like shit. "Det var sammanfattningen av introduktionen.
Jättekul att du hunnit med att läsa introduktionen.![]()
Jag har nu kommit förbi introduktionen. Då skriver han så här:Erin's audio corner skrev:Note: I don’t generally audition speakers with the typical “audiophile” music. I have thousands of high-quality albums ranging from pop to metal to jazz and all around.
I don’t typically listen to “audiophile” music because I just don’t enjoy it. It is far more important that your evaluation music be something you are familiar with than it is to be esoteric for the sake of being esoteric. You also want to listen to music you enjoy because auditioning a stereo system shouldn’t feel like a chore. Such is the case in my evaluations. Besides, the subjective evaluation is purely to help tie to the objective data and make sense of what I am hearing to help you all get an understanding of how relevant the data is. As you will see below, my music selection did a great job at providing enough range for me to identify the issues that readily appear in the data.
Subjective Analysis Setup:
The EQ was always in-line in my listening sessions. I only measured them without to get an idea of the raw speaker performance. But I listened to them with the EQ.
I listened to these various ways: with the speakers near the side wall, with the speakers 3 feet from the sidewalls. With and without Dirac Live. I will make notes where applicable to define the specific listening conditions.
I used Room EQ Wizard (REW) and my calibrated MiniDSP UMIK-1 to get the volume on my AVR relative to what the actual measured SPL was in the MLP (~11 feet from the speakers). I varied it between 85-90dB, occasionally going up to the mid 90’s to see what the output capability was. In a poll I found most listen to music in this range.
I listened to these speakers and made my subjective notes before I started measuring objectively. I did not want my knowledge of the measurements to influence my subjective opinion. This is important because I want to try to correlate the objective data with what I hear in my listening space in order to determine the validity of the measurement process. I try to do a few listening sessions over a couple days so I can give my ears a break and come back “fresh”.
I decided that I liked the almost-neutral setting where the difference was just a touch lower on the MidBass slider and a touch more on the MidTreble slider which is the orange line above.
The imaging and soundstage of this speaker is like nothing I’ve ever heard before. It doesn’t immerse you. But it immerses the area where the speakers are. Typically a soundstage will extend to the side, frontwards and backwards of the speaker. But only with certain music does the soundstage really expand (as it should, of course).
However, with the 901’s the soundstage is deep and wide on everything I threw at it. It still changed the size depending on the recording, though.
Seating position practically doesn’t matter.
I know we all talk about speakers having a wide sweet spot. Well, these don’t even have a sweet spot. When I sat in the side chairs of my front row the vocalist still came from between the two speakers. I would hear things now and again where the vocalists’ voice would move at a certain frequency. But compared to what happens when you move a seat over; where the vocalist follows you… well, the 901’s do not do that. The center stays at the center (for the most part).
It’s mind-boggling.
I switched the Philharmonic BMR speakers back in for these and was quickly reminded of everything the Bose 901’s do wrong.
But I was also reminded of everything a conventional speaker just cannot do.
Look, this speaker isn’t a speaker you buy for accuracy. This is the speaker you buy because you’re looking for something different.
I honestly was enamored with what they do.
It was so wildly different than anything I’ve heard before that, at first, I pretty much ignored all its flaws (and there are some big ones).
The soundstage is crazy big. The sound comes from everywhere in front of you, but still does a good job of having good image placement. It’s not a “wall of sound”. It’s a “prism of sound”. It’s not 2-D (and, really, even some of the best speakers still don’t render a 3-D space). The 901 isn’t even 3-D. It’s 4-D. Heck, it’s 6-D. It’s a total mind trip.
But the tonality is a wreck. Dirac Live fixed that up well for me, though. Unfortunately, there’s no way to get around the considerably high distortion and SPL limitations.
I wonder how a design like this could be made to sound if you just replace the front full range speaker with a modern 5-inch midrange and tweeter.
. . . So, ask around… you probably have a friend with a pair that would be happy to let you hear what this whole direct/reflecting thing is all about.
Till skillnad från alla andra som jag känner till så EQar han dessa med modern utrustning. Han gör nog det mesta som går att få ut ur dessa högtalare utan att byta ut högtalarelementen. Visst, distorsionen är kvar. Men det positiva med högtalarna ger en tankeställare och det är denna tankeställare många har fått uppleva med Carlssonhögtalare och vissa Mbl eller Beveridge, speciellt då man ska lyssna på akustisk musik inspelad i akustiska miljöer.
Därför tycker jag det är kul att någon har bemödat sig att försöka plocka fram the cream of the crop ur denna gamla konstruktion.
Frågeställningen är, går det att bibehålla alla positiva saker och till och med utveckla dessa samt att få bort alla negativa egenskaper?
Jag vet att det går. Men då behövs det ytterligare en djupdykning i fenomenet Ljudåtergivning av akustiska instrument i akustisk miljö där både instrumenten och miljön bibehålls i återgivningen utan att musikkonsumentens eget lyssningsrum hörs samt en djupdykning i hur hörseln katalogiserar input i nervsystemet och hur hörseln bygger upp ljudbild, den ljudbild som skulle byggts upp av hörseln om man var på ort och ställe då inspelningen ägde rum. Då gäller det även att veta hur stereosystemet begränsar och veta hur man kommer förbi denna begränsning. Det går faktiskt.
Mvh
Peter
petersteindl skrev:Igår var en speciell konsert i Baerwaldhallen med Maestro Herbert Blomstedt (93 år) på dirigentpulten.
https://www.berwaldhallen.se/play/blomstedt-dalene/
eljulio skrev:Hur är äggläget just nu? Kläcks det några? Kommer de gamla modellerna finnas kvar när de ny kommer?
hifikg skrev:Hur marknadsförs de? Finns de i någon butik? Är det någon på Faktiskt som sitter med ett par?
Användare som besöker denna kategori: Imperial-Blomman, RogerGustavsson, Sillstryparn och 21 gäster