what does it mean when you guys say "Roll off" ?
Shure se535 Bronze vs Ultimate Ears UE900 - Page 2
Gear mentioned in this thread:
The expression stems from the notion of plotting the audio frequency range of a component in the form of a graph.
You place the audio frequency range along the horizontal axis and the output along the vertical in decibels (db's).
Ideally the component should not exhibit a deviation in its output from the lowest to the highest frequencies. When plotted this is said to be a 'flat response' but this does not always occur, particularly with transducers and when you plot this you'll see a 'roll off' where the response ceases to be 'flat'.
In such instances there is therefore less of the particular frequencies being reproduced.
The steepness of the roll-off plays an important role too.
Generally it's is held a flat response from 20hz to 20khz is desirable for HiFI components.
Does that help?
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also could be said in terms of extension, ie: highs dont extend to a certain frequency or extend to only a certain frequency but not any higher.
also could be thought of as decay, roll off would mean the decay happens faster not allowing full representation of say a cymbal crash
these are just terms and explanations that come to mind when thinking of the 535. i thought it was really crappy that shure decided to do this with the 535 and not give full extension to the highs. its said higher entension could be had with different nozzle filters. and you might be able to improve the extension of the highs, but that really depends on weather or not you want to fool with the nozzle and fool with the filters.