As I said before, I apologize if anybody feels abused. My thank you was a sincere response to PENG’s “thank you”, nothing related to sarcasm. Our exchange of opinions was useful for me.
Even request to “google how to read datasheets” was not a sarcasm, as you can see, I did it by myself and provided quotes.
English is my second language, but I have no “attitude” or any intention to make anybody feel unhappy, Pogre.
Okay, as I said, technical discussion is over for me, but I would like to clarify something here so you are clear why I reacted that way in my last couple of posts.
The fact is, I provided you some info about the vol IC, and the availability of the 8805's service manual for download, but evidently from you subsequent posts that you didn't really read my post in any details, but rather, you keep posting as though you were providing me the info, like assuming I had not read what I linked. That's fine, but you can understand why I get frustrated after a while.
Examples of the info I provided, before you sort of posting and/or linking the same:
- that the specified 1.2/2.4V were "rated output", whatever Marantz meant by that, but not "maximum" (citing Yamaha's as an example, that they provided both "Rated" and "Maximum", if they were the same they wouldn't have done so). It appeared you have at least acknowledged that in the beginning but changed you mind again later, back to insisting those were "maximum". So I said I would agree to disagree on that point. When I was good enough to ask you for clarification, you ignored my question, twice
iirc.
- I then provided the link to the NJU 72343 vol IC, and I also stated that it does mean the maximum output would be determined by this IC alone. In this case it may well be because the HDAMs of the 8802A and 8805 are designed to be unity gain, the previous versions were not (no idea if you know that prior..)
- I responded first to Irv's point about the buffer, and mentioned HDAM itself was a buffer too, but that his NR1609 does not have HDAM so there may be a buffer that is not shown, or hidden in the block diagram. I have not read the schematics in any detail at that point, even if I did it would have been long time ago and memory does fade over time. We both know that buffer or not, it is a matter of ensuring the driving amp has high enough input impedance and low enough output impedance for the load amp so the buffer stage could well be part of the amp section design and may be shown in the schematic of the power amp section. Then you basically (obviously not in exact words) repeat what I stated in my response to Irv, in your post#93 in which you stated:
"They are true schematics, the signal can be traced down to the output socket.
Just no buffer stage in the unbalanced mode, but HDAV can be considered as a buffer in the balanced mode indeed. Power amps have their own input buffers."
And that's right after I decided to quit and thank you..
I am not going to re-read all the posts so if I missed anything or misstated something, I have decided to move on from this particular discussion. Suffice to say my frustration is from after we seemingly agreed to further discuss the issue of whether the D&M specified rated pre out voltage represents the maximum value or not, the conversation that followed were almost one sided. It just seemed that I read you posts in detail, but you did not, otherwise you wouldn't have repeated more than once a few things I mentioned in different words as though you never read my posts. There is no fun discussing something just with myself lol.. Now I hope you don't take this the wrong way, you obviously know your stuff, and it is your prerogative to simply post without reading or trying to understand others.
Edit: Yes that hometheaterhifi.com article is a good read, I read that a couple times long time ago, and posted the link to it on this site several times in the past, along with links to other informative articles by Dr. Rich who has a PhD in EE iirc.
Good one like that deserved to be shared, and linked often, so thanks for that and I am not upset that you assume I have not read that article. I would have worded it differently but we all have different styles. Oh, didn't I mention I do own a AV8801, one reason I read Dr. Rich review on both AVPs more than once..
PS This is my last post on this topic, and if you don't read it, that's fine for me, others may.
