Technician to review my Marantz Monos

Can anyone recommend a Technician to review my Marantz Mono MA9S2 mono amps electronics? Someone mature enough to recommend upgrades along the way? In the USA.

Thanks

johnread5709-03-2017 6:48pm

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crubio Details Discussions Posts This discussion Message User 89 posts 09-03-2017 at 09:29pm Copy Comment URL Report Comment Edit Delete https://forum.audiogon.com/discussions/tube-amp-upgrade-repair-in-san-jose-bay-area
audioesq Details Discussions Posts This discussion Message User 26 posts 09-05-2017 at 10:27pm Copy Comment URL Report Comment Edit Delete Recommend you contact Jennifer at Jena Labs. She has performed very effective modifications of Marantz MA9SA2 Mono Amps. Best of luck in your quest.
johnread57 OP Details Discussions Posts This discussion Message User 227 posts 09-06-2017 at 07:46am Copy Comment URL Report Comment Edit Delete Audioesq thanks. I contacted Jennifer and they no longer do this work due to business growth. I have found someone else.

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