Hugh's pages don't work particualry good on a Mac either, rather bad actually.lohk said:
Hugh, have you ever thought of using a mysql/php driven website? You might check out Joomla.www.joomla.org
A nice demo and lot's of templates can be found here.
www.mamboserver.com (check for demo).
Let me know if you want som help with this.
Is this my only observation or Mr. Lineup comments seems to get longer by the day. 😉 No offense here, but something like 10 lines will save a lot of time and scrolling. (and pages)
regards,
Hartono
regards,
Hartono
Thanks Guys,
The comments on the website I take on the chin; there are issues (problems we do not talk about!!), I am aware of it, and my web designer, Russell, showed me a new splash page just yesterday which is MUCH better and fills the whole page on both Explorer and Firefox and hopefully, Mac.
The argument that amplifiers should all be as low a distortion as possible is laudable and opens the way to a huge intellectual design challenge. Given the nature of the human condition, this all too often degrades into a compulsive/obsessive campaign, however, with much derision between the objectivists and the subjectivists in full view on this very forum. But, do all of us enjoy our coffee without sugar? There are many who like just a little, vanishingly small quantities certainly. i suggest that they fall squarely in the tube camp, and it's my belief that while the music itself partly dictates the reality, most like just a few grains of C12H22O11, myself included. Complex orchestral, highly dynamic material does not favour single ended triodes, for example, but jazz quartets definitely do like this style of amplifier.
A very convenient way into this paradigm is the high quality, zero distortion SS amplifier, which confers detail and power married to a carefully voiced tube preamp, which adds that slightly organic 'tubey' sound.
Cheers,
Hugh
The comments on the website I take on the chin; there are issues (problems we do not talk about!!), I am aware of it, and my web designer, Russell, showed me a new splash page just yesterday which is MUCH better and fills the whole page on both Explorer and Firefox and hopefully, Mac.
The argument that amplifiers should all be as low a distortion as possible is laudable and opens the way to a huge intellectual design challenge. Given the nature of the human condition, this all too often degrades into a compulsive/obsessive campaign, however, with much derision between the objectivists and the subjectivists in full view on this very forum. But, do all of us enjoy our coffee without sugar? There are many who like just a little, vanishingly small quantities certainly. i suggest that they fall squarely in the tube camp, and it's my belief that while the music itself partly dictates the reality, most like just a few grains of C12H22O11, myself included. Complex orchestral, highly dynamic material does not favour single ended triodes, for example, but jazz quartets definitely do like this style of amplifier.
A very convenient way into this paradigm is the high quality, zero distortion SS amplifier, which confers detail and power married to a carefully voiced tube preamp, which adds that slightly organic 'tubey' sound.
Cheers,
Hugh
I'm trying to find out why some of the high-feedback (ultra low THD) amps sounds not so friendly. I haven't got the final conclusion yet, but there are some factors that seems to appear. The same ultra low THD amp can be approached from many-many way. And not all are bad sounding. First is the PSRR. The schematic that pay attention to high PSRR can sound good with high-feedback. Second is the output stage. A design that has very good output stage can be put to high feedback design and sounds good. Designs that aims for ultra low THD and neglects PSRR and output stage quality (only concentrating on making as high feedback as possible in differential+VAS to get low SIM-ed THD) will likely sounds bad.
Question to Aksa, and a bit offtopic, but anyway
Hi Hugh, did you ever build and test the Miranda boards ... I remember that you changed boards with Sonny ?
I must say, I am very pleased with my amps built with Sonnys Miranda modules, but may have to build Aksa amps at some time
Hi Hugh, did you ever build and test the Miranda boards ... I remember that you changed boards with Sonny ?
I must say, I am very pleased with my amps built with Sonnys Miranda modules, but may have to build Aksa amps at some time
lumanauw said:
The more of technique is used to solve (offset really) raw problems, the more of a 'technical sound' we get. Natural sound ties with circuits and materials with the least inherent problems. Its like natural beauty vs made up beauty.
Hi Tinitus,
Thanks for your email. No, he never sent me the boards; I do recall sending mine, but I never received Sonny's!!
A pity......
Cheers,
Hugh
Thanks for your email. No, he never sent me the boards; I do recall sending mine, but I never received Sonny's!!
A pity......
Cheers,
Hugh
AKSA said:
If I remember correctly, it was I who suggested that you could swap boards. I am sorry to hear it ended up this way.
Me too 
I do respect Sonnys "work" very highly, best I have ever heard and he is an honest guy - well, maybe Aksa can beat it, time may show 
I do respect Sonnys "work" very highly, best I have ever heard and he is an honest guy - well, maybe Aksa can beat it, time may show
Christer,
Don't be concerned; boards are not expensive, and web business relationships are very tenuous because there is no face to face. It's just life!
Anyway, why swap ideas, and then finish with bad blood because of accusations of copying? Better to be inspired within oneself.....
Cheers,
Hugh
Don't be concerned; boards are not expensive, and web business relationships are very tenuous because there is no face to face. It's just life!
Anyway, why swap ideas, and then finish with bad blood because of accusations of copying? Better to be inspired within oneself.....
Cheers,
Hugh
I would like to finally say that Sonny although being a brilliant curcuit designer his 4-layer boards with lots of SMD are way too complicated to build as DIY - to deliver those boards assembled and tested by hand is VERY time consuming - hard to make any money on that, and not very wise..... well, enough said about that
Hugh,
I don't know Sonny except from this forum, but I seriously doubt he would copy your amp. It is still bad that he didn't send you his boards, but I would like to assume he either forgot entirely, or he did send them but they got lost in the mail or something.
I don't know Sonny except from this forum, but I seriously doubt he would copy your amp. It is still bad that he didn't send you his boards, but I would like to assume he either forgot entirely, or he did send them but they got lost in the mail or something.
Christer,
Please don't be literal. The comment was generic, in no way directed at Sonny, whom I always found very pleasant and well mannered.
Tinitus,
An unfortunate affliction for an audiophile......
SMD is only suited to mass assembly, which means large production runs and heavy capital investment in both componentry and marketing, to ensure it can be sold promptly. A good engineer will always be tempted to do it this way because that is his trade, but the decision is unviable for small runs. It is surprising how much high end gear does NOT use SMD, in fact. I took the decision for years to build single sided; I'm now doing double sided, but only VERY few SMDs. I do all my own assembly.
Cheers,
Hugh
Please don't be literal. The comment was generic, in no way directed at Sonny, whom I always found very pleasant and well mannered.
Tinitus,
An unfortunate affliction for an audiophile......
SMD is only suited to mass assembly, which means large production runs and heavy capital investment in both componentry and marketing, to ensure it can be sold promptly. A good engineer will always be tempted to do it this way because that is his trade, but the decision is unviable for small runs. It is surprising how much high end gear does NOT use SMD, in fact. I took the decision for years to build single sided; I'm now doing double sided, but only VERY few SMDs. I do all my own assembly.
Cheers,
Hugh
what I don't like about SMD is when there's solder flux left under the SMD component.
not to mention stressing the component when the pcb flex
not to mention stressing the component when the pcb flex
Hi Hugh,
Don't forget that there is reduced power dissipation for sm devices, and the tendency to stick everything close together to create hot spots. Thermal management has been a problem for years and surface mount could make this worse. My Philips scope suffers from exactly this problem.
Hi Hartono,
-Chris
Don't forget that there is reduced power dissipation for sm devices, and the tendency to stick everything close together to create hot spots. Thermal management has been a problem for years and surface mount could make this worse. My Philips scope suffers from exactly this problem.
Hi Hartono,
It's inert, no problem. Solder paste won't leave any under and most parts for wave soldering are glued anyway.
That's a handling or enclosure design problem. Through hole components suffer from the same thing also.
-Chris
Hi Chris,
I'm not asking this to start arguing, I just want to know what's really happening. and learn from it.
"It's inert, no problem. "
you mean the solder flux is inert ? but it has been documented to cause problems, like increased capacitance because of flux left under ceramic caps, and the flux absorbing moisture and become conductive.
"Solder paste won't leave any under and most parts for wave soldering are glued anyway."
but isn't the glue just a little part of the package ? so some still creeps
the mass production have very good cleaning solution for this, but diy'ers don't
"That's a handling or enclosure design problem. Through hole components suffer from the same thing also. "
pcb flexes because of heat and cooling, and through hole component have more resilience ? no ?
Hartono
I'm not asking this to start arguing, I just want to know what's really happening. and learn from it.
"It's inert, no problem. "
you mean the solder flux is inert ? but it has been documented to cause problems, like increased capacitance because of flux left under ceramic caps, and the flux absorbing moisture and become conductive.
"Solder paste won't leave any under and most parts for wave soldering are glued anyway."
but isn't the glue just a little part of the package ? so some still creeps
the mass production have very good cleaning solution for this, but diy'ers don't
"That's a handling or enclosure design problem. Through hole components suffer from the same thing also. "
pcb flexes because of heat and cooling, and through hole component have more resilience ? no ?
Hartono
Chris,
Yes, thermal effects are considerable and troublesome, particularly in analog circuits, and there is intolerance to pcb flex, which is normally solved by careful mounting.
BUT, it's smaller, cheaper to make in large quantities, and damned reliable if design is good.
Pak Hartono,
Setujuh, jauh lebih suka through-hole, saya pasti Chris tak mau panggil!!
Ciao,
Hugh
Yes, thermal effects are considerable and troublesome, particularly in analog circuits, and there is intolerance to pcb flex, which is normally solved by careful mounting.
BUT, it's smaller, cheaper to make in large quantities, and damned reliable if design is good.
Pak Hartono,
Setujuh, jauh lebih suka through-hole, saya pasti Chris tak mau panggil!!
Ciao,
Hugh
- Status
- Not open for further replies.