I re-birth the topic... i have two L20.5 in a DIY amp with a very big SMPS (1200w, on Aliexpress) + adding very lot of capacitors (+12000µF per rail)
Anyone make a good measurement of this amp ?
The MODification is effective or not ? ... the conceptor LJM tell on DIYaudio that is just a wire, zero change for him...
With a few hours of test i find the medium very pleasant (a bit much forward maybe) but the bass wass not very tight...
I remove the input cap and I think the sound is worse without it (this is the first time i remove a input cap and loose sound quality...) ... This week is re-put the input cap and make the MOD...