土瓜灣/紅磡Hi Fi同好會 |
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回覆 (363): 土瓜灣/紅磡Hi Fi同好會
this is where BenYC has the most fun ! @@ !!  
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Fun or torture... I cannot tell. Probably I like whip and chains too.  
 
Yet, to give you an idea. I am now looking around for a pair of bose 101/roommate. This is what got me started when I was in school.... Back to square one probably something I wanna do deep under....
BenYC
11-11-03
15:43:15
回覆 (362): 土瓜灣/紅磡Hi Fi同好會
A front loaded mid-high driver doesnt cure this problem and may even amplify it further because the horn length is usually shorter in a front loaded system.  
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Correct ! this is why I have an active crossover for driver alignment, time delay and fiddling the crossover frequencies and matching the integration. If you only have one driver ie full range you cannot do what I am doing. The real problem comes with amp matching with different drivers, different sensitivity and different power ..... this is where BenYC has the most fun ! @@ !!
daiwok
11-11-03
15:20:52
回覆 (361): 土瓜灣/紅磡Hi Fi同好會
You will always have the same problem with mid and treble running faster than the bass driver unit with paper cone in a reflex cabinets anyway. The bass paper cone has a much higher moving mass and longer travel distance which makes it react much slower when compare with the mid driver and morden super light tweeter. A front loaded mid-high driver doesnt cure this problem and may even amplify it further because the horn length is usually shorter in a front loaded system.  
 
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I am not too sure if I agree bass sounds slower because the cone is heavier. To make a fair comparison in this speed factor, one should aligh the coil of bass with mid or high (Time align). I was thinking about this quite some time myself and I also further questioned whether vertical distance would make significant difference. Findings from my voodoo/primitive-experiments - vertical is not crucial. Yet, if align coils, the slow bass problem is usually not noticeable (at least for front load) and not hard to solve. (I don't use long throw drivers by the way.)  
 
Using port or tranmission line to get extra extension is another area thou.  
BenYC
11-11-03
15:09:22
回覆 (360): 土瓜灣/紅磡Hi Fi同好會
The longer the horn, the more extended the bass but also the slower it becomes.  
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Ok fine! lets get a little bit more technical here!  
 
You will always have the same problem with mid and treble running faster than the bass driver unit with paper cone in a reflex cabinets anyway. The bass paper cone has a much higher moving mass and longer travel distance which makes it react much slower when compare with the mid driver and morden super light tweeter. A front loaded mid-high driver doesnt cure this problem and may even amplify it further because the horn length is usually shorter in a front loaded system.
bobui
11-11-03
14:44:25
回覆 (359): 土瓜灣/紅磡Hi Fi同好會
Bass is always the issue with back loaded horns and I had many and I still have some ...... stored away. The longer the horn, the more extended the bass but also the slower it becomes. Integration becomes an issue, unless you have huge backloaded horns and a huge den, and everything just becomes one ...... somewhere [email protected]@
daiwok
11-11-03
14:30:27
回覆 (359): 土瓜灣/紅磡Hi Fi同好會
"vaguely".... jeez.... when can I start proof reading properly?..... How can I yell at my son next time I check his homework.....
BenYC
11-11-03
14:29:11
回覆 (358): 土瓜灣/紅磡Hi Fi同好會
Front horn rules.but not at home. ;-)  
 
Back load horn may have a problem of cancellation/dip on freq having similar wavelength as the horn length...? I read this from an altec paper quite some time ago. Just remember fakely....
BenYC
11-11-03
14:27:33
回覆 (357): 土瓜灣/紅磡Hi Fi同好會
YAMAMURA CHURCHILL  
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Yeah right! Why not! Not quite the size of my house but surely the price of my flat! You think I should order one in shocking pink to please my boss!
bobui
11-11-03
14:20:17
回覆 (356): 土瓜灣/紅磡Hi Fi同好會
Front loaded horn is a tough one to get it right in a domestic enviroment. I wouldn't even dare to think about having one in my den. Total admiration to those who manage to get it right. You have my vote la, diawok! For me, back loaded horn la!  
 
Monster Apogee driven by valve power amps or front loaded horn with over 100db driver, that"s truely high hands lor!
bobui
11-11-03
14:06:52
回覆 (356): 土瓜灣/紅磡Hi Fi同好會
ok for you full rangers ! YAMAMURA CHURCHILL !!  
 
http://www.madotec.fr/
daiwok
11-11-03
14:00:38
回覆 (355): 土瓜灣/紅磡Hi Fi同好會
I am still trying to tweak it @@  
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Tweak what! Yours is far more than OK.
bobui
11-11-03
13:53:14
回覆 (354): 土瓜灣/紅磡Hi Fi同好會
Hmm... actually being a fullrange have an advantage of being able to select frequency cutoff at a wide range. Why not use it at mid and then add woofers/subwoofers and tweeter and go active crossover path. This can potentially sort out the main problem of fullrange - harder to give out complicated passages with ease as well as both ends being limiting.  
 
On the minus side... this path can be a lot of work and frustration.... :-)  
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I am still trying to tweak it @@
daiwok
11-11-03
12:50:28
回覆 (353): 土瓜灣/紅磡Hi Fi同好會
add woofers/subwoofers and tweeter and go active crossover path  
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Sound complicated and fun! To me, add this and that to a proper full range driver/cabinets gives me the feeling of "Cheating". You know what I mean but then, you are not incorrect! We all enjoy the extras from cheating, right! So be it!  
 
For now, if I can still manage to have satisfy results without adding unwanted pain in finding extra space for a bass cabinet and any strange looking tweeter, I shall leave the cheating part for later day!
bobui
11-11-03
11:59:04
回覆 (352): 土瓜灣/紅磡Hi Fi同好會
Hmm... actually being a fullrange have an advantage of being able to select frequency cutoff at a wide range. Why not use it at mid and then add woofers/subwoofers and tweeter and go active crossover path. This can potentially sort out the main problem of fullrange - harder to give out complicated passages with ease as well as both ends being limiting.  
 
On the minus side... this path can be a lot of work and frustration.... :-)
BenYC
11-11-03
10:34:45
回覆 (351): 土瓜灣/紅磡Hi Fi同好會
comparing lamhorn to acousta is doint a great insult to the lamhorn.  
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Lowther Acousta is too cheap la!  
 
OK, you are right, the Lamhorn wasn't very impressive at his place. Zero mid bass and the sound was very lose and too soft. But then, I was pretty sure Lamhorn is much better than that. The reason for not getting it was mainly because i really want to have something bigger. Longer horn length so I can try more powerful driver such as the PM5A.
bobui
11-11-02
17:29:06
回覆 (350): 土瓜灣/紅磡Hi Fi同好會
I came less than inch close to getting myself a pair of Lamhorn last year with a reasonable offer from PeXXX. I turn in down because I wanted something larger than my Acousta. Not similar size.  
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comparing lamhorn to acousta is doint a great insult to the lamhorn. i don't know whether pexxx has improved his listening environment, last time i was there, i was rather shocked that anyone would possibly buy anything after hearing it there^-^
drwkng
11-11-02
17:12:45
回覆 (350): 土瓜灣/紅磡Hi Fi同好會
Size really does matter a lot for those with 10Watts or less power amp driving a pair of horn the size of your house!  
 
There is a saying that if you use your finger to gentlely tap the speaker cone, the different sound you hear from different cone materials represent the character of your speakers. So next time when you are in a show room and the sales refuse to demo you a million dollar speakers because you dont look like a million dollar man. Simply go foward and tap the cone, the sound you hear will give you some ideas on the characters of the speaker! Trust me, it works all the time! If it doesnt work, just tap harder lor! OK!
bobui
11-11-02
17:01:28
回覆 (349): 土瓜灣/紅磡Hi Fi同好會
size matters ! 8^)
daiwok
11-11-02
16:39:03
回覆 (348): 土瓜灣/紅磡Hi Fi同好會
I came less than inch close to getting myself a pair of Lamhorn last year with a reasonable offer from PeXXX. I turn in down because I wanted something larger than my Acousta. Not similar size.
bobui
11-11-02
16:28:29
回覆 (347): 土瓜灣/紅磡Hi Fi同好會
lamhorn cabinet is supposed to be one of the best given the small size. if you can reverse engineered it, you could have a very good horn system. if you know some one that can take an x-ray, i can lend you my lamhorn^-^
drwkng
11-11-02
16:18:02
回覆 (346): 土瓜灣/紅磡Hi Fi同好會
horn is that it has to be big.  
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I am a bit reluctant in trying out any space ship look alike design. Any hideous looking object with a size larger than my head certainly won't be welcomed by Mrs bobui. Lucky that my head won't grow any bigger since the day I met her!  
However, wardrobe size can be possible as I have successfully immigrate a pair of York triangle cabinets Tannoy 15" into my house some years ago without getting myself or my cat any major harm!  
 
I like the Mau horn a lot and if someone can build a pair using ply wood. Wowww, queue behind me please. Here is the cross section of the Mau horn IV.
bobui
11-11-02
16:12:01
回覆 (345): 土瓜灣/紅磡Hi Fi同好會
the problem with horn is that it has to be big. otherwise it is not fun. acousta is not my idea of big. so instead of getting a new speaker unit, get a new enclosure. but then big enclosure has low WAF.
drwkng
11-11-02
14:08:09
回覆 (344): 土瓜灣/紅磡Hi Fi同好會
TP1a cabinet.  
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The Reps 1 priced at roughly HK$50,000 a pair. Not within my shooting range la! The AER MD3 is very good when for the first time hearing a pair in front loaded horn set up with seperate bass cabinets at a high hand den recently. A bit brighter than PM7A. No sure how it will perform as a full range in my Lowther Acousta! Checking out the dimension of a pair of PM5A to see if it can fit in with my Lowther cabinets. Would keep you posted if i decided to go for it!
bobui
11-11-02
11:37:16
回覆 (343): 土瓜灣/紅磡Hi Fi同好會
Another nice TP1a cabinet.  
Yes, still a lot of fun on playing Lowther......and fullrange drivers........
DY
11-11-02
10:42:27
回覆 (342): 土瓜灣/紅磡Hi Fi同好會
Thanks for brighten up my day with the unusual looking Lowther. Strange looking but nevertheless, it's a Lowther? He he! Had a long day with the recent management changes! Emmmmmmmmm! Thanks to you DY! Hi fi is still fun to me! Stay with your sharing please!
bobui
11-11-02
00:30:56
回覆 (341): 土瓜灣/紅磡Hi Fi同好會
Amazing Lowther cabinets.
DY
11-11-01
19:06:54
回覆 (340): 土瓜灣/紅磡Hi Fi同好會
Can try the Goodmans Axiom 80, could be better than Lowther.  
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Oh, yes, the Axiom 80, I like it very very much. The Axiom does have a slightly stronger cone material which makes the mid -range sound more solid without the shout into your face you get from Lowther but in terms of speed and magnet power, the Axiom lose out a bit due to the smaller size magnet and heavier cone. It is not suitable for horn loaded and the upper frequency is a bit compromise. And is also limited to one or two Goodmans original cabinet design. Limited fun!
bobui
11-10-31
10:09:44
回覆 (341): 土瓜灣/紅磡Hi Fi同好會
rrrrrr
civicwong
11-10-31
09:41:24
回覆 (340): 土瓜灣/紅磡Hi Fi同好會
testing
civicwong
11-10-31
09:40:20
回覆 (339): 土瓜灣/紅磡Hi Fi同好會
Can try the Goodmans Axiom 80, could be better than Lowther.
DY
11-10-29
13:49:30
回覆 (338): 土瓜灣/紅磡Hi Fi同好會
Where could I get the reps1? Point me a direction pls.  
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there you are.  
 
http://www.rlacoustique.com/reps1.htm
drwkng
11-10-29
12:40:02
回覆 (338): 土瓜灣/紅磡Hi Fi同好會
Icefox, must be an Evil that gave you the recoomendtions to buy all now and ask later. That evil bought all the good things already and left us with all the little toys! And that's what we suppose to buy all! Life is harsh with the evil around!
bobui
11-10-29
12:27:28
回覆 (337): 土瓜灣/紅磡Hi Fi同好會
Where could I get the reps1? Point me a direction pls.
bobui
11-10-29
12:21:44
回覆 (336): 土瓜灣/紅磡Hi Fi同好會
Buy them ALL now and ask questions later, has been the recommendation that I get most.  
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of course but buy the Reps1 first.^-^
drwkng
11-10-29
11:35:27
回覆 (335): 土瓜灣/紅磡Hi Fi同好會
"Can someone slam and attack me, tell me what best to do"  
 
Buy them ALL now and ask questions later, has been the recommendation that I get most.
icefox
11-10-29
11:26:02
回覆 (334): 土瓜灣/紅磡Hi Fi同好會
I've only tried the PM6A and 7A. To me, the hard pole piece of the 7A does enable way more details and extend a bit further on the treble. I am always interested to try others such as AER and PM2A but somehow haven't got round to it either due to their high prices or over size magnet. I am pleased with my PM7A but is also in search of something completely different just for fun. Diawok set up as i heard recently is very live like and nothing short of slam and attack. Perhaps, I should spend time fixing up an AER MD3 as an upgrade to my existing set up than looking for something not in the horn single driver family. Emmmmmmmm, tough decision! Can someone slam and attack me, tell me what best to do before I waste another chunk of my hard earned cash.  
bobui
11-10-29
10:54:23
回覆 (333): 土瓜灣/紅磡Hi Fi同好會
The PM6C got less bass on my previous DIY Fidelio cabinets. Compare with PM6A, the sound is different and PM6A is warm and sweet.
DY
11-10-29
10:31:15
回覆 (332): 土瓜灣/紅磡Hi Fi同好會
I do of course mean C45. I do have PM6C which I kept for future upgrade trade in, but after using PM7a, PM6a, EX4 and PM4a .... I decided to call it day. My PM6C are totally destroyed so I will try and rebuild the surrounds.
daiwok
11-10-29
10:08:13
回覆 (331): 土瓜灣/紅磡Hi Fi同好會
the other is Charlie Azzolina whom I regularly talk to as he also uses the Jean LeCleac'h flared front horns and I have his bass units
http://www.azzolinaaudio.com/
daiwok
11-10-29
10:02:28
回覆 (330): 土瓜灣/紅磡Hi Fi同好會
Some people prefer the C series, one its cheaper, another is distortion is easier to control. The only issue is bass as you need to find the right cabinet. There are 2 people who have used the C series successfully that I know or read about.  
 
Nelson Pass with his Kleinhorns  
 
 
 
daiwok
11-10-29
09:59:53
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