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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Re: Passive transformer preamp Vs. Line stage preamp posted by audioeyedoc on March 21, 2005 at 08:01:10:
I only know of 2 other transformer option for passive volume control.one is here>>>>>>http://www.audio-consulting.ch/
the other below(there is a DIY kit).I've heard the ultimate attenuators and they are really good but the transformers are suppose to be better.They are very expensive though.Could you scan me the audioxpress article?I would really like to read it and possibly do .I'm using a Sony scd777es with transformer output to by pass the audio board output stage.A totallyno brainer.It's not the same as the Audio Consulting kit.
It uses a 1:8 step-up transformer for voltage gain and a 10k potentiometer across its secondary for volume control.
It was designed by Jack Elliano of ElectraPrint and uses their PVA transformers.
Its main drawback is the exceedingly low input impedance that it presents to the source component, on the order of 150 ohms. Something which was not mentioned in the AudioXpress article.
se
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Follow Ups
- Re: Passive transformer preamp Vs. Line stage preamp - Steve Eddy 11:04:27 03/21/05 (1)
- Re: Passive transformer preamp Vs. Line stage preamp - audioeyedoc 11:16:42 03/21/05 (0)
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