upgrades improvements

Hello AK, Im in the process of restoring an RG-2 Range Expanders and one of the "upgrades" im looking to make is to increase the brightness of the power / pilot LED to match my other components However my circuit deciphering skills seem to be lacking and I cant seem to figure out which of the...

I've had several pairs of their box speakers upgraded. This previously was just a rebuilt woofer and SBA which they do in house. Had been good stuff. Recently I got a pair of i's from e*ay (unknown to me at the time -apparently they wanted to buy them but the seller continued with the auction...

Someone with fresh thoughts help me. I have a pair of RS Optimus 7 speakers which I enjoy for there vintage looks and heck they are just different from what other people have . They actually sound pretty good with Jazz or classical or music from the period they were made . But slap on some ac/dc...

Hi, First time poster. I've started cleaning up and recapping a Marantz 1030 as a summer project. It's going well. However, one of the things I'd like to do - due to its relative ease - is upgrade the power supply to a better level of regulation. To do this I'm going to replace the resistor to...

Good day all! :) Just put together my system, a McIntosh MAC 4100 hooked up through Mac XR14's and Acoustic Research AR-2ax speakers (still working on the 3rd pair). Currently utilizing a Pioneer PL115d turntable with an Audio Technica AT120E cartridge, looking to upgrade this piece, my budget...

I bought a pair of Cerwin Vega XLS-215 s with a little bit of shipping damage to the cabinets for a great price.. Stock they sound a lot better than I expected. It seems that the newer CVs sound way more balanced and refined than their old stuff and still go like @#$%!!! I think that they were...