Class "A" sound, as related to Stereophile.



It's all about the sound.

It's all about sound, not how much it cost; when I got into "high end", I knew right off the bat I couldn't afford it, but I had to find one thing for sure; how do the various components sound in regard to Stereophile's classes, or ratings? In order to know this; I had to acquire the ability to identify "Stereophile's" class "A" class "B" and class "C" sounds, and the only way to do that was: first, subscribe to Stereophile, and next was to go to every high end audio salon within driving distance; there were 5 well stocked "high end" salons within driving distance. (Since I didn't take my wife, that created some problems)

After a few years of subscribing to Stereophile, plus auditioning equipment that Stereophile recommended, I knew the sound of those recommendations, and I absolutely concurred with them; "If you want to hear the music, you got to pay the piper". While that's true, it's possible to get class "A" sound with class "B" bucks or less.

At this moment, I am looking at 8 capacitors that cost $25 dollars each, plus 2 mono blocks with an instant resale value of 6K. Once I take the covers off and go in with my soldering iron, these mono blocks are worth a resell of O; my mission must be a success. After a successful mission, the resell is still 0; but those mono blocks will deliver class "A" or "A"+ sound, and that's some sweet music.

I have to visualize and hear music in my head before I can modify a component to deliver class "A" sound; but that's the only way for me to get what has become a necessity.

The pressure someone is under when they modify, is great, but the rewards are glorious. On these mono blocks, they are too small for the huge capacitors, therefore I have to figure a way to make the case larger. My reward is "sound" with absolutely no relation to money. I often wander if someone with a fat bankroll can identify the sound, or only how much they paid for each piece.


Happy listening.

orpheus10
Koestner 11-13-2016
You are missing Al's point. With a CD player the preamp will most likely be reducing the signal to the amp, not amplifying it. Without some way to reduce the source signal everything would be one volume level, and very loud!

Orpheus10 11-13-2016
Koestner, take me to your source; the source of what ever made you say that. That thing called a volume control on the preamp that you turn up or down sets the level to the amp. But I know you knew that. If you turn it up, the speakers get loud, and down, they get quiet.
The "full scale" (maximum) output of the great majority of D/A converters (whether they are stand-alone DACs or are contained within a CD player or other component) falls between 2 and 3 volts for unbalanced outputs, and twice that for balanced outputs.

The majority of power amplifiers will be driven to their maximum power capability by an input somewhere between 0.5 and 2 volts for unbalanced inputs, and twice that for balanced inputs.

Most digital recordings are engineered such that musical peaks come close to digital "full scale" (the maximum possible digital value).

Therefore in most cases involving a digital source the preamp's volume control will be set such that the preamp's output voltage at any instant of time is less than its input voltage.  And even more so considering that many and probably most users can be presumed to utilize the maximum power capability of their amplifiers rarely if ever.

That is the basis of my simple statement that:
... the preamp doesn’t necessarily make anything bigger, as in many cases, especially if digital sources are being used, the volume control will be set such that the amplitude of what comes out of the preamp is less than the amplitude of what goes into it.
Regards,
-- Al
 
Post removed 
Dave (Dlcockrum), your post that appears just above my previous post makes an excellent point IMO.  Well said!

Best regards,
-- Al


Thank you very much Dicockrum, I don't know how I got locked into speakers costing thousands of dollars. That just goes to show what happens when there are no more places to see, hear and compare different speakers. I might try some of those; if you see any that you think can be sold for what I paid, I would appreciate it if you let me know.



Enjoy the music.
all media written or spoken or shown on tv intended to earn money for the number of words ordered, written and published. it has nothing to do with quality and it has nothing to do with reality as well. all you can use media for is to know what new toys are there.