DIY 自作派同好同學會 |
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回覆 (75): DIY 自作派同好同學會
anyone know how to use RTA with notebook here?  
 
RTA= real time analyser
Welborne
09-02-05
14:17:44
回覆 (74): DIY 自作派同好同學會
dearabbey hing,  
 
when you said "For project 25 I think it is wrong for him to put in the 10u cap and make the 2nd order LPF", do you mean i should try just keep the 4mH coil, and take away the 10uf caps? a more gentle cut off slope for the low drivers?  
 
Yes i was not feeling very confortable, psychologically seeing lampizator's using so many parts in his projects. In fact for a long time that i hve lived with the saba combo before i came across lampizator's site, i just connect coax+fr on baffle in parallel without any crossover at all...and i think that still sounds very nice. Only when i start to bring in one extra 10" to help the bass a bit in my narrow baffle and in a much larger environment, i can hear a serious overlapping of mid-frequency and that's why i started to bring in the Lampizator's idea. Let me try your suggestion tonight
Welborne
09-02-05
14:16:22
回覆 (74): DIY 自作派同好同學會
hi dear abby bros,  
 
So far the sound of my baffle following project 25' idea is very good, despite the fact that since i don't hvae the high pass network to cut off the lower part of the coaxial's maincone and cone resonance starts to come in and can't play very loud. I guess it was around 110hz. If i have had followed exactly what Lampizator did, it would be much safer for the coaxial's maincone to work when we need to crank up the volume. You can hear some "dee dee" sound whne you go near and behind the baffle.  
 
my next project is using active crossover. This does not hvae to be expensive and no point to buy those exotic highend one. There are some companies thaat produce activer crossover for professional use and they are proven designs. I have been checking out info and feedback on diy forum of aka. Klisch, Altec etc and certain names always are recommended: dbx, rane, ashley and these are definitely not expensive unit. Say a 3-way crossover cost under HK$2000 in shamshuipo brand new, and this is probably cheaper than buying premium boutique capacitor/resistor/coil for a crossover, and i swear by activer crossover's superior sound.  
 
I can't imagine how saba would perform if put together with 18" woofer in active crossover. My next project.  
 
The only trick: how to integrate them nicely. Would be ideal if I konw how to use real time analyser to check on the frequency curve so that i can adjust the loudness of high/low amp....
Welborne
09-02-05
14:05:22
回覆 (73): DIY 自作派同好同學會
Glad you mentioned this lampizator guy. I had previously communicated with him and shared our Music Angel 845 modification experience. I happened to have done my modification before I came to notice of his site. It also happened that his choice of component values/working point settings are very much similar to my ideas.  
 
For a year or so I have no visited his site again. Promoted by your post I had looked into it again. All I can say he is crazier than I am. As I am planning my retirement I hope I can spend as much time and do many more projects (but not to his degree).  
 
I also looked into project 25 as your suggested.  
 
The one thing I found identification in him is he has gone back to basics, and he no longer believes in premium grade components. Personally I think this is the only way to reach audio nirvana. In xo building I am more and more convinced (by numerous experiments) that only first order (single component frequency divider) works best. For project 25 I think it is wrong for him to put in the 10u cap and make the 2nd order LPF. If you were to do this project, try this point for yourself and determine which works better. You must need the 4mH inductor. For the mid part, I think the cap size could be reduced to 30u. So you can try between 90u and 30u and use your ears to determine which value is best. Would love to hear your results. Cheers.  
DearAbby
09-02-05
12:37:28
回覆 (72): DIY 自作派同好同學會
this guys only discovered the cheaper 8" green saba. I dont' know what he would have said if he had used the flagship 10" coax.
Welborne
09-02-04
18:44:46
回覆 (71): DIY 自作派同好同學會
Vash,  
 
My saba baffle is partly inspired by this diy guru living in poland  
 
http://www.lampizator.eu/SPEAKERS/PROJECTS/Speaker%20projects.html  
 
you can see from the web his 25 projects in the last 10 years. You can see how he evolved from expensive box speakers using some of the most expensive drive units like ATC, audionote etc to finally cheapy SABA green cone and tweeters.  
 
The crossover values of my set up is also inspired by him, see project 25, except that i did not put a low cut network for the main 10" coax as i did not have the parts on hand.  
 
Welborne
09-02-04
18:42:53
回覆 (70): DIY 自作派同好同學會
開工大吉! 事事如意!  
jcml
09-02-04
16:45:30
回覆 (69): DIY 自作派同好同學會
Good morning..
dd845
09-02-04
08:15:55
回覆 (68): DIY 自作派同好同學會
>>>好快要中港两邊走  
 
有大生意,美好前景呢!射住,射住…  
 
 
Vash
09-02-03
23:33:42
回覆 (67): DIY 自作派同好同學會
其實我無乜時間玩lu,好快要中港两邊走,但係呢幾個月認識一班網友,真係好開心!  
同時得到各位指導,再一次感激大家!
smltommy
09-02-03
23:30:04
回覆 (66): DIY 自作派同好同學會
>>>都係CEO支持......  
 
唔好靠人啦 (e.g. EAR phono) 相信閣下都係時候砌番部 phono amp. 。  
 
Vash
09-02-03
23:26:27
回覆 (65): DIY 自作派同好同學會
Tommy 兄,  
 
遲來先上岸呵!快過我玩 Linn…  
 
^_^  
Vash
09-02-03
23:21:23
回覆 (64): DIY 自作派同好同學會
都係CEO支持......
smltommy
09-02-03
23:04:28
回覆 (63): DIY 自作派同好同學會
Vash兄,  
 
咁快收到.........???  
 
又要唔該CEO........佢幫手搞咗两個下午......  
 
 
 
Thanks alot
smltommy
09-02-03
22:58:01
回覆 (62): DIY 自作派同好同學會
恭賀 Tommy 哥, new toy in year of OX !!  
 
^__^
Vash
09-02-03
21:26:13
回覆 (61): DIY 自作派同好同學會
>>>Feel free to come anytime if you like. I am usually free on weekdays morning (strange time, i know...^^)  
 
 
Too bad, Welborne, my home is usually available on weekdays afternoon...... ^_~  
Vash
09-02-03
15:38:17
回覆 (60): DIY 自作派同好同學會
oh what a pity, i have the charlize2 too and i wanted to demonstrate how good it can drive my baffle to Vash and rcwy but we did not have all the time to do it. I could give up so many amps just to keep the charlize2, but matching with sensitive speakers with above 92db at least is the condition.  
 
Feel free to come anytime if you like. I am usually free on weekdays morning (strange time, i know...^^)  
 
Welborne
09-02-03
03:10:06
回覆 (59): DIY 自作派同好同學會
I'd love to join too : )  
 
Hi Welborne, nice to see you here!  
 
Finally got the Charlize 2 but acidentally shorted one of the ouputs to ground last week and it went belly up right away : (  
 
Need to get a new one.....or, anyone knows where I could find a TA2020 chip, and wondered if those made in Korea are better....Thanks.  
 
Later!
CFT
09-02-02
23:18:05
回覆 (58): DIY 自作派同好同學會
>>>May be next time when you come again, i can demonstrate my Schulz 12" coax th315 to you too, hopefully already augmented with a 18" woofer with active x/over.  
 
 
I am looking forwards to have this amazing audition soon !  
 
^__^  
Vash
09-02-02
22:16:55
回覆 (57): DIY 自作派同好同學會
Vash,  
 
Thanks for your very generous words. it is good to have a few trained and polished ears to come to my little world to give criticism and comments. I love that.  
 
I am very glad that you and rcwy seems to like my set up though I am awared of the room for improvement especially in the bass department.  
 
May be next time when you come again, i can demonstrate my Schulz 12" coax th315 to you too, hopefully already augmented with a 18" woofer with active x/over.
Welborne
09-02-02
21:52:46
回覆 (56): DIY 自作派同好同學會
Very nice OB setup!
ackcheng
09-02-02
19:23:09
回覆 (55): DIY 自作派同好同學會
The performance is stunning, linear, full of body, texture without any colouration from box type speaker....very closed to a planar speaker. I think it may benefit more if moving the speakers a few inch forwards to listening postion.  
 
Welborne, thanks for your hospitality and special thanks to rcwy brings us a special guest, a legendary audiophile from Leak gang, Philip Lee !!
Vash
09-02-02
16:39:57
回覆 (54): DIY 自作派同好同學會
Vash
09-02-02
16:38:42
回覆 (53): DIY 自作派同好同學會
A must try of CAS for 24/96 and 24/192 media playback.
Vash
09-02-02
16:38:18
回覆 (52): DIY 自作派同好同學會
A dac gathering, moodlab, Colin and Weiss.
Vash
09-02-02
16:37:13
回覆 (51): DIY 自作派同好同學會
Another open baffle project.
Vash
09-02-02
16:36:40
回覆 (50): DIY 自作派同好同學會
One of my favorite brand of DAC, Colin from Taiwan.
Vash
09-02-02
16:36:15
回覆 (49): DIY 自作派同好同學會
EICO vintage integrated, 14W output....
Vash
09-02-02
16:35:51
回覆 (48): DIY 自作派同好同學會
Main system
Vash
09-02-02
16:35:25
回覆 (47): DIY 自作派同好同學會
10 inch full range coaixal type by SABA (Germany), a famous radio broadcast engineering in 50's.
Vash
09-02-02
16:34:57
回覆 (46): DIY 自作派同好同學會
10 inch LF unit
Vash
09-02-02
16:33:58
回覆 (45): DIY 自作派同好同學會
A great idea of speaker stand from IKEA after his visited to limage's panel theatre.
Vash
09-02-02
16:33:19
回覆 (44): DIY 自作派同好同學會
Very nice craftmenship !
Vash
09-02-02
16:32:31
回覆 (43): DIY 自作派同好同學會
These DIY open baffle based on the spec. and calculation by a foreign DIY speaker engineer that uses open baffle as well.  
 
Vash
09-02-02
16:32:04
回覆 (42): DIY 自作派同好同學會
Vash
09-02-02
16:31:03
回覆 (41): DIY 自作派同好同學會
A pair of mature stage open baffle with 3 pcs. of 10 inch SABA unit toe in a bit to make a traditional triangle type setting with listening position.  
Vash
09-02-02
16:30:24
回覆 (40): DIY 自作派同好同學會
A morning visit to a well known open baffle and EICO enthusiast, Welborne....
Vash
09-02-02
16:29:43
回覆 (39): DIY 自作派同好同學會
Good morning..
dd845
09-02-01
10:03:54
回覆 (32): 鄧麗君主題咖啡店登陸尖沙嘴
Off topic a little, think before you buy a Philxxx LCD TV (End)  
-----------------------------------------------------------------------------------------------------  
Broadxxx sent a new one yesterday and it works flawlessly up to now.  
 
QC of Philips is poor (probably it's the low end Europe one)!  
 
The salesman's attitude was good when I bought it but bad and impolite when I asked for my replacement!  
 
jcml
09-01-31
00:12:09
回覆 (31): 鄧麗君主題咖啡店登陸尖沙嘴
dd,  
 
A must visit coffee shop for you and Gingers....  
 
Check this out.  
 
^__~
http://hk.news.yahoo.com/article/090129/4/afjo.html
Vash
09-01-30
22:47:32