{"product_id":"dagostino-progression-m550-monoblock-amplifier-early-build-m500-chassis","title":"D'Agostino Progression M550 Monoblock Amplifier Pair · Early Build, M500 Chassis","description":"\u003cp data-olk-copy-source=\"MessageBody\"\u003e\u003cem\u003e\u003cstrong\u003eSold as a pair \u003c\/strong\u003e\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003eDefinitive is one of the most respected D'Agostino dealers in the country. They know this line the way most shops know their best sellers. Every circuit generation. Every chassis revision. What it needs to perform, and what it gives back when it gets there. When a D'Agostino comes through Definitive on a trade-up, that knowledge comes with it.\u003c\/p\u003e\n\u003cp\u003eHere's what this one is. An early Progression M550 … the full M550 circuit and power supply, 550 watts into 8 ohms, 1,100 into 4, 2,200 into 2, housed in the earlier Progression M500 chassis. D'Agostino built it this way during the move to the second generation. The output doubles cleanly as the load drops, which is the tell. That only happens when the power supply behind it is real. And this one has it.\u003c\/p\u003e\n\u003cp\u003eThe earlier chassis carries less heat sink mass than the later M550 body, so it isn't built to sit at full rated power indefinitely. That's not a limitation anyone hears. Music moves in peaks, not a steady wall, and the peaks are where this amplifier lives.\u003c\/p\u003e\n\u003cp\u003eWhat you're getting is D'Agostino's circuit topology, Definitive's full read on where this unit came from and what it'll do in your room, and a price the later chassis doesn't ask.\u003c\/p\u003e\n\u003cp\u003eCame in as a trade-up through our partnership with Definitive. Stock photos shown. Want to go deeper on the circuit, the pairing, or the provenance? We'll put you straight through to Hans at Definitive. He knows this amplifier better than anyone.\u003cbr\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e This item is currently located at Definitive in Bellevue, WA — not at the Portland shop. If you choose to have it shipped, please allow additional time for transit. If you select in-store pickup, you will receive a confirmation email once the item is ready. For any questions, please contact us directly.\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003e\u003cspan style=\"color: rgb(253, 183, 22);\"\u003e$50,000 MSRP per pair\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003cb\u003e\u003ci\u003eDue to size and weight, this item may incur an additional shipping surcharge and is listed as Store Pick Up Only. Contact us for a quote if you wish to have it Shipped.\u003cbr\u003e\u003cbr\u003ePhone: \u003c\/i\u003e\u003c\/b\u003e888-248-3246\u003cb\u003e\u003ci\u003e\u003cbr\u003eEmail: \u003c\/i\u003e\u003c\/b\u003e\u003ca href=\"mailto:info@echohifi.com\" style=\"color: rgb(255, 255, 255);\"\u003e\u003cb\u003e\u003ci\u003einfo@echohifi.com\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003ca class=\"button button--primary\" href=\"\/pages\/gear-inquiry\"\u003e\u003cspan class=\"btn-text\"\u003eInquire Now\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Dan D'Agostino","offers":[{"title":"Default Title","offer_id":47088659529865,"sku":null,"price":32000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/4557\/0185\/files\/dAgostino-a7.webp?v=1782378561","url":"https:\/\/echohifi.com\/products\/dagostino-progression-m550-monoblock-amplifier-early-build-m500-chassis","provider":"Echo Audio","version":"1.0","type":"link"}