|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
213.7.18.104
In Reply to: RE: The KX-R does not work like this posted by Mercman on November 17, 2014 at 12:57:32
has been doing it for years; it doesn't make their active preamps sound better than the rest.
Many of the techniques to improve preamp performance have been around for years I have used or heard these.
Follow Ups:
Lucy decided to provide us the following comments:Passive preamps are sub-optimal.
Plain pots really don't like to have their wipers loaded. It causes distortion. The capacitance of a cable accounts, too. It requires current to charge when a signal is applied. Wipers distort when they are asked to provide current.
Those Vishay foil resistors actually have measurable flaws. Forget about the Placette.
http://www.ap.com/download/file/747
Transformer based units have the usual transformer limitations.
Plus... A good preamp also provides some manner of common mode rejection.
Certainly all the Ayre units do. Think that matters?Finally... An AX-5 is basically an econo version of my KX-R preamp, but with larger resistors in the volume control to give it voltage gain. Obviously, the output buffer of the KX-R is WAY heftier, as is the power supply.
Edits: 11/18/14 11/18/14
let Lucy bark his/her reply
Lucy is a little girl, but she delivers a big bite!
that those who barks loudest (bites as well) have the least to offer?
...I don't doubt it!
Good thread, thanks for starting it. A rare occassion of sensible debate and give and take on a subject (which the thread veered towards) where there is no right or wrong.
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: