Musical Concepts amplifier modifications upgrades


I would like to hear from people that have had their amplifiers modified by Musical Concepts. I am looking at having two GFA- 555 amplifiers modified / upgraded by them. I only want to hear from people that have had their amps. upgraded by Musical Concepts.
tomcheeser

I have a brand new musical design D140 amp its the best  money Iv spent in my 40 plus years in my hifi journey! That’s all I have to say period!

I have an Adcom GFP 565 that was modded by MC - elite mod and a Hafler XL 280 with PA7 Elite mods including TP 202 and 220M. The sound is fantastic. Worth every penny.

I have a Hafler DH500 that John installed all the mods in including dual stacked power transformers. Also have his Hafler DH110 with all the mods. A friend has the Musical Design DAC 1 hooked to electrostatic. Amazing sound quality. John is highly recommended.

Thanks,

aldnorab