{"dataset":"MainBuyer UK price observations","market":"GB","market_name":"United Kingdom","methodology":"Each observation is stored only when MainBuyer has a timestamped checked retailer offer. Missing days are not interpolated or invented. Historical low, high and median figures use recorded in-stock observations only.","observations":[{"currency":"GBP","in_stock":true,"observed_at":"2026-11-11T04:11:08+00:00","price":"146.30","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B08TR6HR6G?maas=maas_adg_api_584955703333686768_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBdd5e46c7ec568c9a30ee9a425b4054a9_1ef8f053d234&aa_adgroupid=2639e171c8933e65ea354d4915aac879_PBSEP_!!!affid!!!_118045_&aa_creativeid=98a9eIWQS8y0FLs95vzb5qFKjN1Da125PoFYPvVcp43uSzI_c"}],"product":{"brand":"Fosi Audio-UK","evidence_url":"https://mainbuyer.com/evidence/products/fosi-audio-box-x2-phono-preamp-stereo-audio-hi-fi-preamplifier-and-bt20a-bluetooth-stereo-amplifier-b08tr6hr6g/prices","gtin":null,"id":22473,"model_number":null,"name":"Fosi Audio Box X2 Phono Preamp, Stereo Audio Hi-Fi Preamplifier and BT20A Bluetooth Stereo Amplifier","product_url":"https://mainbuyer.com/product/fosi-audio-box-x2-phono-preamp-stereo-audio-hi-fi-preamplifier-and-bt20a-bluetooth-stereo-amplifier-b08tr6hr6g","urn":"MB-AWIN-GB-B08TR6HR6G"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"146.30","historical_low":"146.30","last_observed_at":"2026-11-11T04:11:08+00:00","low_30d":"146.30","low_90d":"146.30","median_price":"146.30","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-11-11T04:11:08+00:00"}}