HARBETH: SHL5 driven by Sugden or …..?

I currently have a Sugden Masterclass IA-4 and am considering moving it on for an Accuphase E350... would this be a big mistake? Unfortunately, no way of demoing first. My speakers are Harbeth SHL5 and use Electrocompaniet EMC1UP as source. Are Sugden and Accuphase very different sonically?

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