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You can find some explanation in: http://en.wikipedia.org/wiki/Golden_ratio

You may find a lot of buildings and houses being built according to the Golden Ratio (or Rule). Also lots of musical...

I see a lot of comments on room acoustics and ways to improve it. Also someone was mentioning the difference between old and new houses.
Mostly the difference, apart from materials, is in...

We offer the readers of the Art of Sound Forum a special price for our D-12 class-D module. It's intended for d-i-y use. The price now, and until december 31st, is 25 Euro (instead of the normal 50...

Anyone interested in our experiences with (discrete) linear voltage regulators?

John

well, well, well .......! A concrete cabinet. It's done before and I know of various patents pending. One of the advantages of concrete is that the form is free. So there will be no flat surfaces...

That transformer is far too small! I would prefer at least a 15 VA one or, better, a 30 VA one. Even 30 VA in a toroid is quite small.

And ......... whenever you decide to "improve" the circuit,...

IMHO the OPA2134 is the nicest solution. With those you might also raise the supply voltage level up to + and -18 V. That would give a bit more "headroom".
Also calculate the needed current for all...

Dear Puffin

I never saw your message (and normally you'll get an answer within one day!). So please send it again wether to the TAOS box here or to john@hawkaudio.nl

John

Dear Nafanja

To be really honest 6 Watts is really a small power. You could do with our new FR-1 (look at FR-1). The sensitivity is around 92 dB, but moreover it's also an "easy" load for your...

The sensitivity of our models is around 88 - 90 dB/1 W/1 m

John

Hi Nafanja

I don't understand the words: "sencitivity" and "youi"
What do you mean by: "93-94-95 systems"?

Our systems date from the early eighties and are updated whenever we meet new...

http://www.audio.nl/various/tilbronner.jpg
It occurs this guy, Til Brönner, is rather popular in the States. It's a German trumpet player a bit kinda trying his thing in the footsteps of the late...

http://www.audio.nl/various/karajan-eroica.jpg
This one was recorded somewhere around 1971 with Herbert von Karajan conducting the Berlin Philharmonic Orchestra.
This is not a DVD. It's a Laser...

I know that "looking" at music is not everyones favorite way of enjoying his music. Some say it distracts from the emotional and musical experience. And then there's the compression, be it by Dolby...

The mentioned 5 gears are in my car! I would also like to do this together with the help of some (local?) dealer. I would also like to show some surround audio but it would be good if someone could...

Yep! And to be honest I've got 5 different gears.

John

I'm surely interested. The newest set of kits is very light weight (with the exception of the SL-1200) so I could do with the top floor.

John

Dear Puffin

At the bottom of the prototype page there's my mail adress. After looking at the various projects just let me know which one is the most of your liking.

John

Looking around at that site you'll see that almost all resistors do have "caps" and are "spiralled" so forming an inductor. The only type made out of solid carbon is the Allen Bradley one.
As said...

We use a cathode follower with the intention of having a low impedance at the output. This works fine but, having a resistor in series between cathode and ground, the current will vary with the...

The most commonly used resistors are the metal film type. They're small and can handle some power. The film is constructed in a spiral around a ceramic substract. So it also is a coil with some...

No one having a comment on that cathode follower? At higher output it will distort (the same with emitter followers of course).
IMHO the bandwidth is rather small and he didn't measure distortion at...

Thanks all for your reactions!
When talking about audio quality looking at prices it should be clear that most of the current projects are NOT High End ones. The current market for expensive...

We have a few new d-i-y projects which are almost finished. We now look for amateurs wanting to build those projects and produce a good building instruction with English text for future hobbyists....

We have very bad experiences with SMPS supplies. In various (High End?) audio chains such a supply induced some noise via the mains connections. The result was that whatever the source, be it CD or...