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The Simplest Pre-Amp
The Simplest Pre-Amp
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Old 2nd November 2005, 05:57 PM   #11
jan.didden is offline jan.didden  Europe
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Quote:
Originally posted by Christer
There have been threads about this before. Yes, the term "passive pre amp" is strupid and technically wrong. However, the term has been around and used for at least 15 years, so I am afraid it is well established whether we like it or not.

"If 50 million people say something stupid, it still is something stupid" - Jean-Jacques Rousseau.
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Old 2nd November 2005, 06:34 PM   #12
anatech is offline anatech  Canada
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The Simplest Pre-Amp
Hi Rob!

Long time. "Passive preamp" gets me too. Marketing people.

I like your idea about a wire with gain. We all aspire to that don't we?

-Chris
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Old 2nd November 2005, 06:47 PM   #13
BWRX is offline BWRX  United States
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It's funny how you guys get mad at the interpretation of a word. Literally, pre is the prefix for before and amp is the noun. That means that a pre-amp comes before an amp. Simple as that. If you want to get really technical you should just call it a pre-amp attenuation stage (for a pot or other pre-amp that attenuates the signal).

So, I would agree with those who say that the simplest pre-amp would be a simple resistive divider - it does not matter whether it's two fixed value resistors, a potentiometer, or a switched attenuator.
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Old 2nd November 2005, 07:20 PM   #14
dhaen is offline dhaen  Europe
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Careful reading of the original post will show the word pre-amplifier.

Dictionary definition:
pre-
prefix
Definitions:

1. before, earlier
preschool
predate

2. in advance, preparatory
presell
prerelease

3. in front of
premolar

[< Latin prae "in front, before" < Indo-European]

So it never was an amplifier!

Edit: This merely duplicates the last post...
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Old 2nd November 2005, 07:33 PM   #15
jan.didden is offline jan.didden  Europe
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Quote:
Originally posted by BWRX
It's funny how you guys get mad at the interpretation of a word. Literally, pre is the prefix for before and amp is the noun. That means that a pre-amp comes before an amp. Simple as that. If you want to get really technical you should just call it a pre-amp attenuation stage (for a pot or other pre-amp that attenuates the signal).

So, I would agree with those who say that the simplest pre-amp would be a simple resistive divider - it does not matter whether it's two fixed value resistors, a potentiometer, or a switched attenuator.


Well, sorry, preamp comes from preamplifier (another sloppy shortening of a word), and hey, amplifier is a verb. Something that amplifies. Like a poweramp comes from poweramplifier. Something that amplifies. Or would you suggest that a poweramp is an amp that comes after the power?

But that is not the real problem. The real problem is sloppy use of language which confuses and in some cases completely breaks down any sensible communication. You want proof? These last few posts are the proof. If we would remember and realise that preamp comes from preamplifier, there was no confusion.

Sorry, but having to communicate in several different languages, sometimes simultaneously, and having to make sure I am exactly understood for pain of personal loss leaves little respect for sloppyness.

But the semantic phenomenon is well known. In the UK there used to be (maybe still is) a company called mack that manufactured raincoats. Sure enough, the word mack in the UK is used for raincoat. In Belgium, half a century ago Kodak cornered the photo camera market, and a photo camera in general, whatever the make, was referred to as a Kodak. "Get my Kodak" meant "get my camera".

Jan Didden
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Old 2nd November 2005, 07:44 PM   #16
anatech is offline anatech  Canada
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The Simplest Pre-Amp
Hi janneman,
I agree totally. The fact that the confusion in terms is used to separate people from their money is something that gets me going. I feel the term "amp", short for "amplifier", demands active circuitry. In other words, some kind of power supply (I'll accept batteries) and an active circuit. Even if the voltage gain is |1|, there is current gain.

Passive preamps are flawed. They can not hope to drive the cable even if they are driven from a power amp's output. Well, maybe at 0 attenuation and off (=short, or 0 output). Some power amplifiers are unstable with a high impedance input to make matters worse. So, if you are going to talk tech, then properly understand tech.

Given the physical reality, I don't want to hear from anyone about the sound of a (Grrrrrr) passive preamp .

-Chris
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Old 2nd November 2005, 07:44 PM   #17
dhaen is offline dhaen  Europe
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The man asked for pre-amplifier, that's the name of the thread.....though in truth I had not made the distinction between pre-amplifier and preamplifier

Language deveops. Language is not what is written in text books, but vox pops, like it or not. I hate some modern language usage, but you have to accept it or not communicate.

Amplifer, verb? Not in my language.
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Old 2nd November 2005, 09:12 PM   #18
adason is offline adason  United States
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love this thread....
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Old 2nd November 2005, 09:17 PM   #19
dhaen is offline dhaen  Europe
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Quote:
Originally posted by adason
love this thread....
It's certainly a good introduction to the colourful banter here.
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Old 2nd November 2005, 11:49 PM   #20
rcavictim is offline rcavictim  Canada
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Quote:
Originally posted by anatech
Hi Rob!

Long time. "Passive preamp" gets me too. Marketing people.

I like your idea about a wire with gain. We all aspire to that don't we?

-Chris

Hi Chris,

Yeah, long time. I still want to continue with you on what we were discussing. Unfoirtunately I have not had a chance yet this entire year to think about audio projects.

Wire with gain and stupid ba star dization of technical terms to make money. OK, gain is often measured in dB and wire begins with the letter W. By golly I think I have it. Let's call this product dBW. That even sounds like a technical term right?!

Rob
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