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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

Recently starting with those I'm speakers such as JBL 4312A or Tannoy Devon box are two light, want to try to try to see if 較 堅 solid box had a little difference how big is the Club Med. NET hahawer a number of information materials on the road, together with Mr Zhang 俠, who built Council, start I'm 樺 Jia wood Board manufacture speakers feel Hobby. With 樺 wood Jia Board when about 鍵 Word, in Web Shang found two three home manufacture made speaker of facility business has Russian Rome Republika 樺 wood Jia Board can choose liquid, this future has Bible duel set Board burgeoning a between bit in Taichung promote thing manual furniture of 鄭 Mr manufacture for, who know 鄭 Mr told 樺 wood Jia Board deficiency 貨, to, a real months, in this a real months station long cannot intended to Web road release now has a between called de chuan speaker of facility business 蠻 interesting of, spent has some when between put Web Road found of information material see over a again, also playing has both pass TV said links Luo 負 Ze people displayed zone chuan Mr, Discuss the theoretical stand long 訂 box specification. 認 Mr Chen surname because of long grass of Seattle is not provided by 專 operating, short little lot, Zhan Zhang likes this kind of ran briskly for one boss, is displayed and the boss of approximately one day to his facility when Gou-pass.


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

Gifts thanks to tone-輩 響 introduced to essential operating big brother Zhan Zhang 導 Horn 擺 in the future, the eldest brother 順 Zhan Zhang taught him set this research alone for those years 擺 del Carmen Horn counterpoint, an expert shot, sure then different 響, property conditions of Zambia 擺 sound of sudden, long Club Med in another article. Lam don't Qian to brother requirements station long put Horn 擺 bit 後 of measured General results fruit sent to he, station long in finishing measured General results fruit when, by in since promote open began using Praxis up, by volume to frequency rate 響 Ying are not is flat, has little 懷 suspected is not station long of volume measured way or is Praxis Department system has question problem, in is Shang Web wants to find about don't people measured General of Bible these, accident release now this article articles, http://www.audioholics.com/education/loudspeaker-basics/audio-measurements , to has station long is big of 幫 help, this paper author is Gene DellaSala, Gene is a reflection of Audioholics NET Office who built Council: temporary staffing ・ English OK friends look at the original, most of this article refer to Gene, measured information modified into long Tannoy Gold 15 ".

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

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This I'm veneered stadium is a big tree in the eBay standard, originally I bought myself, big trees I Tannoy and Yang, let give him quite Club Med. Club Med look this Yes veneered stadium is for because it is 後 period bubble cotton bian of (a said oak adhesive plaster bian, right international Shang see up future and touch up future are like I of HPD385 bubble cotton bian), root high speed circuit switched data I measured over all Tannoy series, bubble cotton bian of low frequency usually sank Shang a big cut, this in 12 inches of veneered Stadium Shang especially important, and gold of treble Hao tube do of than HPD series of conditions Landis many, although so has a said bubble cotton bian bass fertilizer, than hard bian, not over hard bian and bubble cotton bian of low frequency frequency rate 響 Ying completely varies model courses, Do not know what this model courses comparison can correspond? Can only say vegetables raphanus sativas l, different strokes for different folks.

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.

Altec Biflex series Horn has been is I is has tech interest research of Horn one of, he of principle on like its beauty China 專 Lee No. 2834424 said, is by two real Paper basin team collection, this two real Paper basin in the between by with high viscous damping real phase, in low frequency when two real earthquake film with earthquake begins to, high frequency when entering into 較 small of earthquake film Club Med ex-Zaventem big earthquake film alone State chasing after begins to, airport armed points frequency little design set in 1kHz. Due to the high frequency time only small diaphragm on the right international Chandler motion, thus extending its high-frequency characteristics of Club Med is much better.

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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

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