{"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":"2026-11-11T04:11:10+00:00","price":"189.00","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0FC2NWBL4?maas=maas_adg_api_584955703333686768_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBdd5e46c7ec568c9a30ee9a425b4054a9_0028f4f717d9&aa_adgroupid=53ad73ca3af3a1598c41b51c4571cfe0_PBSEP_!!!affid!!!_118045_&aa_creativeid=47d6hyAFY_aSM9SQ_amEj6V9mGtfOnyynBslyfkQDTEHKTvgc_c"}],"product":{"brand":"Fosi Audio-UK","evidence_url":"https://www.mainbuyer.com/evidence/products/fosi-audio-zh3-dac-headphone-amp-fully-balanced-preamp-with-akm4493seq-xmos-xu316-pcm-768khz-for-amplifiers-usb-optical-coax-rca-12v-trigger-input-xlr-rca-4-4mm-6-35mm-output-wi-b0fc2nwbl4/prices","gtin":null,"id":22513,"model_number":null,"name":"Fosi Audio ZH3 DAC Headphone Amp, Fully Balanced Preamp with AKM4493SEQ XMOS XU316 PCM 768kHz for Amplifiers, USB/Optical/COAX/RCA/12V Trigger Input, XLR/RCA/4.4mm/6.35mm Output with Remote","product_url":"https://www.mainbuyer.com/product/fosi-audio-zh3-dac-headphone-amp-fully-balanced-preamp-with-akm4493seq-xmos-xu316-pcm-768khz-for-amplifiers-usb-optical-coax-rca-12v-trigger-input-xlr-rca-4-4mm-6-35mm-output-wi-b0fc2nwbl4","urn":"MB-AWIN-GB-B0FC2NWBL4"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"189.00","historical_low":"189.00","last_observed_at":"2026-11-11T04:11:10+00:00","low_30d":"189.00","low_90d":"189.00","median_price":"189.00","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-11-11T04:11:10+00:00"}}