到官網看單元資料。。。
英國佬的lowther音箱，有三個號角，這家用兩個，和日本的Coral，Fostex相近
就是天下一大抄

看音箱截面圖，是背負載號角

Hi Dr Chan,

Is it possible to audition your audio nirvana super 12 back loaded horn?

Thanks!
Peter

At last, the finished speaker with grille.

It sound very high quality HiFi with very high efficiency 97dB, such that I just use one 2A3 tube amp to drive it.



最後修改時間: 2015-08-26 10:34:36

Just completed and start to run in.

Everything go fine as expected.

re

re

My 12吋 迷宮式音箱 has been completed and paint today
hope to create sound tomorrow.

小弟都diy 左對 FOSTEX FE103-sol 50th anniversary version, 配左對BK103 箱 係大陸定做，手工材料都一般， 用左15mm MDF, 大陸MDF , 但出來既效果已經好過預期， 人聲同中低頻都幾好( 好過usher 502 ) , 中高音就麻麻， 可能本身D 架生都一般貨色 純粹為樂趣。

有朋友係做喇叭R&D的， 聽講呢d 迷宮箱係 低頻180 度反相作一個coherent interference,而得到張低頻放大既作用， 所以低頻速度一定有影響， 但因為全頻喇叭無分音電路 所以係低頻以外既頻響係快左 (相對有分音電路既喇叭 )所以全頻喇叭係有佢既吸引力， 試過有一首歌 裡面既樂器離箱走出來，能夠達到呢個效果已經心滿意足。
ps. 全套架生under $10k
小小分享 , 不喜乜插， 有錯請指點一下

這個新造的喇叭準備好用全橡膠實木造
出現一個新問題。應該用甚麼油漆處理
經過多位老師指導
最好用硬木碏油hard wax wood oil
千萬唔好用清漆

花了一整天在淘宝找到都送唔到香港交貨
最後有位地板師傅介紹
香港灣仔告士打道有檔德國OSMO専科木蠟油
在此和各位分享

順便提下DlY同好
迷宮式音箱系完全唔需要用吸音棉的

最後修改時間: 2015-08-10 18:31:20

final sectional view

因為普通版的 Markaudio 4 吋已經好好聲
馬上再訂一對頂級的試試

我寫錯4吋喇叭牌子。應該系英國 Mark Audio

i thought it's mark audio. the unit looks the same.

如果有機會，真想試聽一下。

The graph indicate the frequency response of a 12" Audio Nirvana ALNICO driver without the cabinet.

Previous project with 4" UK Michael Audio speakers + 迷宮式音箱

Due to the sound path inside the cabinet, only the low frequency sound will be amplified and discharge at the lower opening, as a result, matching/self balancing the poor low frequency response of most driver, no matter the size of driver.



最後修改時間: 2015-08-07 16:20:24

Previous projects with 6" and 15" Audio Nirvana Neodymium speakers + 迷宮式音箱



最後修改時間: 2015-08-07 16:18:56

Specification of speakers

I have made one bass reflex type cabinet with 10" Audio Nirvana ALNICO before and found it sound excellent.

This time try 12" with 迷宮式音箱 should be even better.

A lot of HiFi people have a image of old full range speaker 755
Actually the full range speaker design nowaday is totally difference
The large size speakers can output really full range and sound better
than the smaller one, except the largest 15" frequency stop at 15kHz
and I choice the second large 12" which frequency response up to 20kHz

Statement from the supplier:
The Audio Nirvana 'Super 12 ALNICO' has a frequency response from 37 hz to almost 20,000 hz. You can expect at least 97 db efficiency in any of our cabinets. It handles 30 watts continuous RMS (normal listening level will be about 1/10 watt). Impedance is 8 ohms. Voicecoil is 1.5 inches (38 mm). Magnet weight is 2.4 lbs. Total weight is 15 lbs. The cone is made of paper. The surround is accordion style and made of treated cloth. The phase plug is copper anodized, machined solid aluminum. The Alnico magnet is made of aluminum, nickel, and cobalt and is stronger than normal ferrite/ceramic magnets. Our alnico magnet models are the smoothest Audio Nirvana models and make the most bass.

DrChan

最後修改時間: 2015-08-07 14:50:16