2016년 7월 31일 일요일

I have built three type of the DC power supply for WE 555 driver. Top is a selenium rectifier. Middle is Tungar bulbs. The bottom is Western Electric rectifier tubes I have built recently.
Music is art. Loudspeaker is science. The WE 16A horn is art plus science. I have never seen such an excellent work in viewpoint of the sound and the design.

2015년 10월 25일 일요일



In middle of October 2015, Chris Sommovigo of Black Cat Cable, an American living in Japan, visited to my office in Seoul, South Korea for just looking and hearing the sounds of WE 16A horn replica and went back to his home after three days stay with me. I had felt he had experienced very deep impression like the real sounds at front stage from the horn, as he expressed a deep affection for the sound.

2015년 8월 10일 월요일

DC Power Supply for Western Electric 555 driver.



Above two photographs are the DC power supply for Western Electric 555 driver. Above is built by Tungar bulbs and below is built by selenium rectifier. The WE 555 driver is worked at DC 7 volts, 1.5 amperes respectively. So total electric consumption by a pair of WE 555 drivers are 3.0 amperes at DC 7 volts. In addition to that, a pair of tweeter WE 597 needs 2.4 amperes more at the same DC 7 volts. The two kinds of DC power supply I built can supply average 6 amperes and is designed to endure up to 8 amperes electrically and be adjustable voltage between 6 and 8 volts.

2014년 12월 9일 화요일



Early of November 2014, three gentlemen from Thailand came to my office in Seoul for listening the sound of WE 16A horn. I was very surprised about their passion toward the music. Their purpose to visiting me was just one for listening of the music from the 16A horn, no other business and sightseeing at all. The flying time between Seoul and Bangkok is about six hours. They had stayed in Seoul for four days. So I introduced and accompanied with them to other places to take look around the original WE 15A, 16A horns and Mirrophonic system etc. They were very satisfied about the sound and placed order a quite number of the WE 16A horn replica.

2014년 1월 30일 목요일

I have noticed someone suggested in a popular audiophile forum that the replica cannot possibly produce the same sound as the original due to differences in steel sheet thickness and the quality of material used, to name just a few. As for thickness, I can assure you that the replica's margin of difference is the same as that found in three original horns. I measured the thickness of the three original WE16A horns with a micrometer which can read up to 1/1000 inch.


I have possessed the left gauge from a long time ago. But, the mouth lip of 16A horn body is 2 inch wide. It turned out that the left gauge's throat was not deep enough to measure the thickness of the horns. So I bought another micrometer of the right and measured the thickness of the steel sheet of an original 16A horns up to 1/1000 inch very precisely. The replica is made with exactly the same thickness as the original.

As for the quality of the original steel sheet, the carbon content of the steel sheet is the most important benchmark to meet. Fortunately in South Korea, the world-class steel company named POSCO, is producing almost all kinds of steel sheet products imaginable and I could select a matched product. There is nothing to worry or to doubt about the identity of the replica compared with the original.

2013년 7월 21일 일요일

What motivated me to jump into this endeavor was the rarity and high price of original WE 16A horns on E-bay and and other transaction sites. As expected, I have gone through many trials and errors until I reproduced a horn that meets all important features and traits of original horns. And I have shared with the WE horn lovers in South Korea on this year 2013. The replica is made exactly the same as an original and reproduces front stage sound like an original. If you have further interests, please email me at we16ahorn@gmail.com or we16ahorn@naver.com or call me at international 82 10 5265 9449. Thank you.



The horn in the back is an original Western Electric 16A horn and the one in the front is the replica I built recently. The sound of the replica is the same as an original 16A like an identical twins.



The three pictures from the top show the process of how the replica horn throat is manufactured. The one at the bottom shows an original throat made of iron. But the replica's is made of brass like that of a trumpet trombone saxophone and other brass instruments called the brass band. The idea is to enhance musicality. The brass is a musical metal. Making an iron throat does not present a technical challenge.




The three pictures from the top shows a double throat for WE 16B and 15B horns. "A" of 16A means a single throat and "B" of 16B and 15B represents a double throat. The upper throat in the third picture is the replica I made and the lower one is an original double throat of Western Electric.



Computerized laser cutting machines and bending machines have been used to produce the steel sheets of replica WE 16A horns.






The above 4 pictures also show the procedure of building replica Western Electric 16A horns. Building metal hones, as anyone who has attempted it would attest, is a very arduous and meticulous process with an 1/25 inch maximum allowable margin of error. 




The above two pictures show horn parts waiting to get into the pre-painting and the final painting process.





The painting method employed is powder coating. The two pictures at the bottom shows an inspection step.




The typical  color of  Western Electric's horns are black. But, one of  16A mania asked me a different color. The picture above shows how dark gray color looks like on the horn. And the fabric color at the center is black in place of normal white color. Such variations are up to the end user's need.









The best way of operating a WE 16A horn is to use WE 555 drive as full range without a network. The WE 555 driver goes down to about 80 Hz in the 16A horn. So there is no need to use any woofer or a network. A pair of tweeters with a 1.5 - 2.0uF capacitor is wired to the power amplifier.




The 16A horn is very heavy and is difficult to shift its sitting position. And the sound is so much the better when the horn is lifted up at least 10 inches from the floor. The best way is to suspend it with a steel wire rope from the ceiling. Above two pictures are a movable base. It is very convenient and is strong since it is made with a square steel pipes.







The above four pictures were taken at the process of wooden box packing for exporting to U.S.A.



A set of WE 16A horn shipped to Germany on Jan. 2014.



A set of WE 16A horn shipped to Poland on Feb. 2014