2. amps-preamps
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Bass and Treble Dials

It seems every high end audiophile quality preamp/amp comes with no bass/treble dials. There is no way to adjust the sound coming out of the system other than by adding, removing or replace the audio equipment components... such as the needles, tubes, cables and etc etc. I wonder what would be a real reason behind of not having the treble/bass dials? While it might be a simple question but I really don't know the exact answer. I only guess that it is because the adding the treble/bass dials will unavoidably make an electronic circuit more "complex" which would go against a whole concept: "the simpler the better" or "the less is more". Am I correct in my assumptions?
sputniks

Showing 5 responses by timlub

timlub
2,039 posts
 
I have read from a few sources that Jim Bonjourno's
Ambrosia Preamp has tone controls the work very well. I've never heard it, but I've never read that about ANYTHING else. Maybe someone can confirm.
timlub
2,039 posts
 
Rooms need tone controls
timlub
2,039 posts
 
I understand your thoughts Kijanki. Room treatments to dampen peaks in room frequency and go along way to help give us a flatter response. Agreed, but in some rooms, the only way to flatten response would be some type of frequency control... Obviously subwoofers are very low frequency, but many these days are electronically altered. I do and have used room treatments and agree its the way to go, but as I wrote earlier. I understand that Jim Bonjourno's Ambrosia preamp does a very good job with tone controls... I believe that it is possible for an eq to be built that would do a good job without destroying a sound stage, small increments that very evenly add frequency to channels equally, why do tweeters with a high end rise or a roll off still image? Or a mid with a dip or a peak? Frequency alone does not destroy imaging.
Again, I don't use them, but don't find them an enemy either.
timlub
2,039 posts
 
Hi Kijanki,
I have in my home electrolytics, poly carbs, poly props(metalized and pure film), paper in oil, poly styrene and teflons. I have played a bunch. I measure everyone to less than 1% tolerance. I don't have any mylars and generally agree about the sound of those, but I must say, I have had a russian set of mylars that were outstanding, so who's to say. Ok, only a few pio, ps & teflon.
I stand by my comment, really only an opinion that a good tone control circuit (eq) could be built with very good end results. More bands for flexibility would be nice.
timlub
2,039 posts
 
Kijanki,
Here are the Russian mylars Polyethylene-Terephtalate)K73
They took alot of burn in, but after a couple hundred hours were quite good.
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