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Power and pre amplifier matching

shibuchristy

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Normally have an idea of same brands power and pre gives better combination than any other, what could be the matching factors??. Input sensitivity/current??!
 
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Hari Iyer

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Normally have an idea of same brands power and pre gives better combination than any other, what could be the matching factors??. Input sensitivity/current??!
input and output impedance of source and amplifier needs to be matched. Typically output impedance of a pre-amp will be couple of hundred ohms and input impedance of power amplifier will be near 100K ohms.
 

shibuchristy

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Dec 12, 2013
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Trivandrum
input and output impedance of source and amplifier needs to be matched. Typically output impedance of a pre-amp will be couple of hundred ohms and input impedance of power amplifier will be near 100K ohms.
Thank you very much

I definitely agree with it ...it is all in maths !!..
But is there anything related to the tonal balance...for example some amps are having soft tone, some are more emerging kind ...may be I am little deviating from the topic, but would be great if anyone can share their experiences in this regard..thanks
 

tuff

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You can't talk about things like tonal balance unless you look at the system as a whole. IMO, power amplifiers should be able to reflect any changes you do upstream. But it will boil down to what the rest of the system is.
 

shibuchristy

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Joined
Dec 12, 2013
Messages
40
Points
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Location
Trivandrum
You can't talk about things like tonal balance unless you look at the system as a whole. IMO, power amplifiers should be able to reflect any changes you do upstream. But it will boil down to what the rest of the system is.
i have checked these using same source...and cables. Amplifier plays in the main role in coloring tones , basically pre amp.
sometimes you may like or accidentally get into a combination where tones and power matches our speakers or our likes!
Our tastes and ears amd the type of music we basically listen to , are the main factors .
 

Kannan

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Some months back I had an oscillating experience.
I was listening to a high-end Rockna DAC with inbuilt hifidelity preamp (which was defeatable) in a friend's place.
The company recommendation was not to use an external pre though.

He had two preamps, both top of the in the brands chains. While with one the overall stage improved, with the other one the sound quality actually deteriorated.

So it is very hard to pinpoint.

If you preamp purpose is to just add multiple inputs and have an analogue volume control in the chain, the best is to look out is for a pre that is reviewed as totally transparent.
If you are looking for character from the pre, then it is going to be a challenge to match.
 

shibuchristy

Member
Joined
Dec 12, 2013
Messages
40
Points
8
Location
Trivandrum
Some months back I had an oscillating experience.
I was listening to a high-end Rockna DAC with inbuilt hifidelity preamp (which was defeatable) in a friend's place.
The company recommendation was not to use an external pre though.

He had two preamps, both top of the in the brands chains. While with one the overall stage improved, with the other one the sound quality actually deteriorated.

So it is very hard to pinpoint.

If you preamp purpose is to just add multiple inputs and have an analogue volume control in the chain, the best is to look out is for a pre that is reviewed as totally transparent.
If you are looking for character from the pre, then it is going to be a challenge to match.
Challenge!..that is where the unending journey goes...thank you all ...
 
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