audio line level transformers

Stefano · 26th December 2003, 05:33 PM

Hi to you all, it is possible to use an audio-grade transfo, like jensen or lundhal, for to drive amps like the Zen family, using them to gain voltage, improve in/out interface parametres adn drive directly from an unbalanced source like most of the consumer CD players?
I'm also interested to use them like volume pot, but i think that it would be too much expensive.
What do you think about?

Nelson Pass · 26th December 2003, 09:01 PM

I have experience with the Jensens, and they are very fine
transformers, but their value is mainly in isolation or balanced/
unbalanced conversion.

If you want to drive a SOZ from a single-ended source, this
would be a good application.

Using them to impedance match, say a high output impedance
preamp to a low impedance amp (such as a Zen) is workable,
but you will find that you must proportionately raise the input
signal, since you will be trading voltage for current. In that
case the same results would have been achievable by using a
higher value input resistor, and with better results.

Stefano · 27th December 2003, 04:48 PM

Tank you very much, it's exactly what i wanted to know.

26th December 2003, 05:33 PM	#1
Stefano diyAudio Member Join Date: Jun 2002 Location: Cagliari, Sardinia	audio line level transformers Hi to you all, it is possible to use an audio-grade transfo, like jensen or lundhal, for to drive amps like the Zen family, using them to gain voltage, improve in/out interface parametres adn drive directly from an unbalanced source like most of the consumer CD players? I'm also interested to use them like volume pot, but i think that it would be too much expensive. What do you think about? __________________ Let's make something special

27th December 2003, 04:48 PM	#3
Stefano diyAudio Member Join Date: Jun 2002 Location: Cagliari, Sardinia	Tank you very much, it's exactly what i wanted to know. __________________ Let's make something special

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26th December 2003, 09:01 PM	#2
Nelson Pass The one and only Join Date: Mar 2001	I have experience with the Jensens, and they are very fine transformers, but their value is mainly in isolation or balanced/ unbalanced conversion. If you want to drive a SOZ from a single-ended source, this would be a good application. Using them to impedance match, say a high output impedance preamp to a low impedance amp (such as a Zen) is workable, but you will find that you must proportionately raise the input signal, since you will be trading voltage for current. In that case the same results would have been achievable by using a higher value input resistor, and with better results.

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