In the previous article we went through the history of the famous JBL 431x series monitor speakers. This series of speakers share a lot of debates over the years. The supporters think they are a precise sounding piece of equipment while the objectors think they are noisy and harsh sounding. In this article I tried to use a modern speaker design point of view to investigate the pros and cons of the design of the 431x series. When these monitors speakers were first introduced in the 60s they are considered the state-of-art. There is a reason that these speakers stayed in many recording studios for so many years. But are they still capable of delivering the elements required for a recording studio 50 years? I don't have an answer for it.


JBL 4312e, source: The Internet

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Qi boom in 負 Ze man the displayed zone in Sichuan and decrepitude of Mr Zhan Zhang


This is the San Francisco article 1999 miniWatt, when standing at the beginning of long hand there are Yes JBL 4312C, how Ting is not full, and finally begins to put the box down. Ten tired years later, then head back to see this article, Wikipedia a lot of CUO Wu, less 輕 when his adult memories in my eyes. Friends name when years have a real Web model courses University model courses, also removed boxes, used fruit stand long threes on Altec, why disappoint friends catch this Web Po, do not know how this Web 4312C the last finish reset? This why I'm this first Web friends deeply apologetic. Edge International Club Med recently, reading some JBL 4312 series article, or a Yes 4312A 剛 good and quite Club Med to get, while quite sort out information material, and Yes this Web there is individual accountability.

Despite many people don't like the sound of the JBL431x speakers (too rough, too harsh, doesn't sound like other larger JBL monitors.), the achievement of this series of speakers and it's sibling L100 is unquestionable. This series of speakers are being sold for more than 50 years and even today you can still find them in service in a recording studio. It's hard to find a second speaker model that shares this kind of success.

Left to right: 4311, L100A, L100, 4310. Source: the Internet

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Precision true horns measured? That is the fact you can't afford!


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This times ITU-T SG15 Question 4 Club Med Council is in method China TV letter Paris Research Center ju line, just station long in out release Qian see a Yes not containing points sound device of Tannoy Monitor Gold LSU/HF/15/8, is custom airport of gold head, Mai home in Paris, results standard when between station long just in fly airport Shang, so 丟 has a real station long of bottom line, on Shang fly airport has, unexpected to has Paris playing open TV ever a see, was station long is only of Xia standard who, 順 Lee have standard.

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By accidentally bought progress Yes Altec 420B (transaction failure, has returned to the Mai, property see above:http://www.labc3.com/index.php/speakers/2011-04-05-13-44-43/62--Altec-420b), want 幫 its high frequency 12kHz BU 顆 treble, are Perl-XForms in the net the way standard, Cannot Italy in diyAudio see has a series discuss theory, has a real players himself home here DIY aluminum brought treble, this bit dude of DIY spirit is too Jin burst has, promote aluminum foil pressure manufacture to framework manufacture for hand package Office, magnetic iron is with modern is of rubidium iron shed, by in with of is aluminum foil vibration film, he still himself 繞 has match change pressure device, most 後 volume measured of results fruit not theory is frequency rate 響 Ying or efficiency are is 驚 people, finished can't help but has kind of has because who also if of rushing begins to. This series of articles can be seen in the following link used to:http://home.comcast.net/~hendentures/index_files/Page332.htm