You assume the person who made the annotation was the one who took the photo, this might not be the case.
No, you are wrong - again.
I simply followed the link and read what was written, had you done the same and not made your assumption, then we would not even have to discuss this.
Recap...............................................
http://www.whatsbestforum.com/showthread.php?18807-Inside-of-an-Audio-Video-Receiver-(AVR)
Hi guys. This is an article I wrote for Widescreen Review Magazine a few months ago. Hope you find it useful.
Inside Your AVR
Do you know what is inside your electronics? What is a DSP? The output stage? Power supply? FPGA? ASIC? Do these terms have any meaning? I suspect for many of you these are obscure terms. Yet, pick up the brochure for any audio/video product and such buzzwords abound. While it is impossible to convey the true nature of these technologies in an article like this, I think we can become more educated and at least have some high level understanding of what goes on inside your electronics. For this article, I am going to open the top of a premium AVR I purchased back in 2007. At the risk of stating the obvious, you are not going to become a design engineer from reading this one article. But rather, get you started on a journey to know more about what is under the hood and what type of design trade off a manufacturer may make. I hope to do the same with other electronic components in the future, helping explain some of the other commonplace technologies used in them.
Block Diagram
I have annotated the major subsystems of the unit in Figure 1. Let’s go through them one by one:.......................
For this article, I am going to open the top of a premium AVR I purchased back in 2007.
I think that it is clear that in this instance
amirm looked inside the unit himself, and did not go off a photograph taken by someone else as his basis.
Repost of photo:
http://www.whatsbestforum.com/showthread.php?18807-Inside-of-an-Audio-Video-Receiver-(AVR)
Here is my order of preference for the record.
1. Myself opening equipment to see for myself.
2. Someone qualified (
that I trust) opening the equipment and reporting what they see.
3. Clear photos to go off of.
Not on the list?
Not opening it at all,
not even out of curiosity.
For the record, I don't try to fix it unless it's broken, and I don't open it up unless it's broken.
Guess that makes me more like Andre than I'd like to admit.
However, if I was doing a professional review and had either purchased the unit or had the manufacturers blessing on opening things up (
even if they wanted to supervise), I would document what I saw and share any findings of interest.
Most likely I would not know much of what I was looking at, and would use a consultant to fill me and the readers in.
In a more collaborative world
Andre would write his subjective piece on how it sounds, and have someone else like
amirm (or equal) do the technical analysis.
I think that I've shared this story, but will repeat myself here. I once did an informal review of a speaker which I was fascinated by and posted the results on line - in this forum in fact. It was well worth the $20,000 at least compared to two other speakers in that range I have heard. However, there was an odd soundstage issue I could not get over, I even drew a diagram of what I heard in the room.
The owner of the shop (
the exclusive dealer) was not happy with me, said that I "published" something unfavorable, could I please take it down. I took almost everything down but the diagrams, which I consider my privilege as an artist of sorts.
Anyway, long story; the owner later told me that I had (
through listening alone) discovered that one of the drivers was wired out of phase. He sent the speakers back to get serviced, and the mistake was discovered. He thanked me, well not exactly, I think he's still frustrated by the whole incident to tell the truth.
I've never even attempted to review another piece of equipment there, the first time was too rough on everyone involved.
Andre's standards and methods are his own, and so are amirm's, I have respect and need for both.
What I do not respect is Andre's abusive attitude towards others.
This has got to stop, it just is not professional.