Man, it's been awhile since I posted in this thread! I'm glad to hear that the mod worked for you! :thmbsp:
I have had my modded HPM's going as my main speakers ever since I posted this thread, using them with my own gear and to test many, many different receivers and amps I've been repairing or restoring for guys on here and elsewhere (STA-2100D, SX-1280, AU-717, AU-20000 and many more) and I have not found any reason to go back, they have sounded so much better.
Do post your thoughts after you've completed and auditioned. I haven't a clue where I'm going to find the time for all these projects. Ugh!I'm working on a pair of 200 watt HPM-100's and came across this thread, looks like an easy mod. Maybe I'll go for it and see if I like the results. :scratch2:
I ordered parts for this today. I have a pair of completely recapped HPM-100 crossovers sitting here collecting dust, since I haven't ever put theming second pair. I'm going to try the mod on these and then swap them in and out of my "main pair" and see what happens.
I believe I mentioned earlier in this post that re-cap helped a lot for mine. This thread has me interested. I actually have two sets of spare networks. I can always mod one set, test, then decide for myself.I just dropped off two amps for Matt to restore in February. Now my interest in this mod is piqued.
I cannot listen to my HPM's more than a half hour without ears ringing, tho my tinnitus is pretty bad some nights. I will say that both my pair and my friend Vegaman9's pair both benefited from a recap (dayton caps I think?) Harshness went way down.