Beats with reverse echo.. Why?

[ds3]

HI all,
Following the workflow to digitize recordings from vinyl.
Prior to exporting tracks, I listened and found awful effect on most tracks (classic house, acid etc) - best described as a kind of hissing reverse echo before beats.
Can anyone tell me what process might have developed this artefact, and how I can avoid it?
(And yes, I know dance is a crime against sound!)
Cheers

[steve]

Did the problem exist with the original recording?

My guess is that you may have applied too much Noise Removal (or not used an appropriate selection for the noise profile).

[Trebor]

pre-echo compression artifact is another possibility, caused by too much lossy mp3 compression : i.e. bit-rate is too low.

[ds3]

Thanks for the advice!