My power amp was upgraded in 2017 by John Sampson former head engineer at MS. John replaced all the power supply, decupling and biploar capacitors - as well as substantially upgrading the input cabling, audio feedback and gain stage circuits
The resulting upgrade is phenomenal - I will probably regret parting with this amp, but house move means I must
£450
Collect in Croydon, or I can delivery up to 25 miles for a petrol donation. Insured delivery is £25
Thanks
Colin
Some industry reviews (without the upgrades!!)
https://www.hifiaudiohub.com/ad/musi...ono-amplifier/
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