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Causes of long term listening fatigue?

I like to listen to music continuously for hours mostly at low volume levels. For me therefore, it is important to have a setup that will not cause any listening fatigue (lf).

Now I am looking for a new speaker setup and I wonder whether people could comment on the following aspects:
1. is 5-ch more susceptible to lf than 2-ch?
2. are there quick tests so that one can determine whether a given speaker will tend to give lf? I ask this because in a shop it will be difficult to assess this due to lack of time and differences in acoustic environment.
3. Which speakers do you know in the price class $3k that do have lf problems and which ones can be recommended in this respect? (difficult question, I know).

Thanks for input.
Regards,
karman
vertigo
130 posts
 
wall treatments do not suck info away as has been stated above. They make imaging and soundstage sharper and less distorted. the speakers will sound more accurate. Reflections that come straight off the wall, ceiling or floor and collide with the frequnecy radiating directly from the speakers at the listening position can cancel or exaggerate frequencies along the whole tonal spectrum. Proper room treament will help realize your sytems potential!your room is a 'component'.

keep it fun!
unsound
7,329 posts
 
I suppose most Audiogoner's listen to music more than most others. That might just be the problem. I sometimes wonder if I'm the only one here that gets listener fatigue listening to live unamplified music. Sure I can listen for hours and hours, but, there comes a point when enough is enough. My simple little brain needs a rest. On to something else, or nothing else for that matter. I sometimes wonder if some people sacrafice fidelity for longevity. FWIW, if you have the room, I too would endorse used Quad '63's "in that respect".
atmasphere's avatar
atmasphere
11,837 posts
 
LF is caused by odd-ordered harmonic content in the signal, usually harmonics of the 9th order and beyond. These harmonics are emphasized by the use of negative feedback in amplifiers and by non-linearities in transistors (and to a lesser degree by non-linearities in pentodes).

IOW, LF is usually not caused by speakers alone. To reduce odd-ordered harmonics, one will have to use a tube amplifier with little or no feedback. Such an amplifier will need a linear impedance curve from the speaker, so if low LF is your main priority, then you now know what you have to look for!
warnerwh
539 posts
 
Brightness caused by speaker and/or room is numero uno. Also hardness and grain I cannot deal with anymore. So I feel any component or possibly a combination of components can cause LF.
atmasphere's avatar
atmasphere
11,837 posts
 
You are correct- the reason is that our ear/brain systems are tuned to accept odd-ordered harmonic content as *the* loudness cue (read: Listener fatigue) in anything we hear. Anything that causes an emphasis to those harmonics results in listener fatigue.

Bright sounding electronics get that reputation through the negative feedback they use. Speakers may get that reputation for a variety of reasons, not the least of which is that improper relationships between the amp and speaker (transistor amp on a high efficiency speaker, for example) can cuase the speaker to become shrill when it is not normally.
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