Audible illusion L1

The 4 dip switches modify sonics of the preamplifier's line stage. Once the preamp has been broken in we recommend that they be switched to the OFF position. Regards, Jerry/AI

Thanks jerry!

Jerry, the L1 sounds good as stock, any possible improvement beside tube rolling? any mods (coupling caps, chassis damping. etc...) or anything that is possible to bring the L1 to the next level? any suggestion will be greatly appreciated
Tim.

Pepericoz, We mfg.the L1 from 1994-2003 and made no updates to the design during this period. However, the 5mF/300v polypropelyne caps could be updated to newer versions. Also, replace two of the four HVB+ 100mf/400v, radial-lead,Panasonic electrolytic caps with Panasonic 220mf/400v caps. (The first two caps closest to the front. Not the 3rd & fourth caps with the bypasses). This will improve the preamps dynamics. However I suggest you have this work done by a competant technician. Regards, Jerry

Jerry
Thanks for all the suggestions, can these caps be purchased thru AI? if it can, what caps (brands)do you offer for the 5mF/300V polypropelyne? thanks again

Tim
PS; by the way i have applied soundcoat damping sheet thru out internal chassis also top and bottom cover ( ofcourse not blocking ventilation hole ) and have experienced better detail and tighter bass, what do you think?