This is a seller’s market for high-end Swiss bookshelf speakers, but the A$10,000 asking price for these Piega Coax 411s is ambitious, sitting well above the 75th percentile of A$4,105 from your 15 comparable AUD listings and far exceeding the median of A$2,503. Even compared to current US new retail prices of roughly $9,995–$11,995 (approximately A$15,500–A$18,600), the used price lacks the discount typically expected for pre-owned gear, making it a tough sell unless the condition is pristine and original.
The Piega Coax 411 Gen 2 is a well-regarded standmount that delivers near-magical clarity with its coaxial ribbon driver and massive 55 lb build, extending bass to 35 Hz in small to medium rooms. If this listing is for the Gen 2 in original-owner condition with full accessories, it offers genuine sonic upside, but at A$10,000, you are paying near-new value for used goods; verify the exact generation and condition before committing, as a fair deal would likely sit closer to A$6,000–A$7,000.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.