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Musical Concepts Modifications

Hello everyone. I posted a couple of weeks ago regarding upgrading an Adcom GFA 5802 amp. Amongst the fine suggestions I recieved was one from JB recommending that I explore the modification option. Since I am 92% happy with my systems' sound and don't want to go through the whole rebuilding phase again, I thought this made sense. I'm really just looking for a little more high-end extension/resolutuion and a little more transparency wouldn't hurt. I contacted John Hillig @ Musical Concepts and he thinks his Lx Sig Mod would do the trick. I'm just a little nervous about investing in something w/out hearing it first. Ironically, I listen to mostly prog rock and am also worried that the sound may be TOO refined for my taste. I'm wondering if any of you have gone this route, specifically with the 5802? Any info you can provide is greatly appreciated. Thanks, Matt......
yes9
dopogue
1,773 posts
 
Just another endorsement. His cables aren't bad either.
yes9 OP
15 posts
 
Thank you all for responding. It is sincerely appreciated. I'm going to go for it. The only question is; when can I live without my amp for a few week?!
fly_fish_nz
70 posts
 
"Just another endorsement. His cables aren't bad either."

Great interconnects for the money. I remember the first time I used a pair that John sent me: all of a sudden, on a CD that I had listened to many times before in a headphone system, I could hear the guitarist shifting the instrument around as he played, subtle tones and harmonics I had never heard before with the highly reviewed interconnects I had been using.
drjoe
130 posts
 
I too have known John for over twenty years. I have done musical concept mods
and they were always worth the effort. I own his Musical Design products
and they are fantastic for the money. He uses parts that are better than any of the big boys. YOU can't go wrong with John.
Joe
yes9 OP
15 posts
 
Hi everyone. I just wanted to follow up and let you know how I made out with my modification. Well in short I could not be happier. The highend extension and transparency I was seeking have far exceeded my expectations. Sound stage? There is no longer a defined sounstage. My whole downstairs is the soundstage! All the things I liked about the GFA-5802 were maintained and all the annoying weaknesses are now gone. Oh, and no more Adcom "house" sound. The only negative I would mention is that it took over two months for the mods to break in. John said it has to do with the the black gates?. I started to get nervous after awhile as the sound kept fluctuating. But once it settled in, it was perfect. Now I can't help but wonder what he could do with my JVC DVD player. If anyone has anything they would like to share in this regard, it would be appreciated. Thank all of you for recommending John. I do not think I could have possibly done better for the money. Matt........
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