Timing matters a bit here: the 5011 is an older, discontinued MBL preamp, but it’s also from the company’s well-regarded “Noble Line” era, so condition and provenance matter more than spec-sheet age. At A$8,500, this looks fair to slightly strong versus the used market, not a bargain; comparable asks I found sit around A$5,500–A$6,600 after converting the euro listings and an Australian sold listing landed at A$8,500.
What makes it worth a look is the core MBL presentation: big scale, superb layering, and a very refined, low-grain line-stage sound that still has a following. If it’s genuinely like new, complete, and ideally original-owner, the premium is easier to justify because these don’t surface often in clean condition. I’d want confirmation on remote, box, and any service history, but this is still a credible buy if you specifically want MBL’s house sound.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.