{"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":"2026-11-11T04:11:09+00:00","price":"189.00","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0F9KP5SLH?maas=maas_adg_api_584955703333686768_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBdd5e46c7ec568c9a30ee9a425b4054a9_33b71904b628&aa_adgroupid=6a29c8a60a9468f8c2355366ba0455aa_PBSEP_!!!affid!!!_118045_&aa_creativeid=99f4bVyGs2K8bFewtko7Tppy_astINxN9bSViS3F4aF1dzN8_c"}],"product":{"brand":"Fosi Audio-UK","evidence_url":"https://mainbuyer.com/evidence/products/fosi-audio-zp3-balanced-preamp-for-home-audio-2-rca-and-1-xlr-inputs-rca-xlr-outputs-and-sub-out-pre-amp-for-2-channel-stereo-and-2-1-setup-pre-amplifier-with-hpf-high-pass-and-b0f9kp5slh/prices","gtin":null,"id":22511,"model_number":null,"name":"Fosi Audio ZP3 Balanced Preamp for Home Audio, 2 RCA and 1 XLR Inputs, RCA/XLR Outputs and Sub-Out, Pre Amp for 2 Channel Stereo and 2.1 Setup, Pre Amplifier with HPF High Pass and Tone Cont","product_url":"https://mainbuyer.com/product/fosi-audio-zp3-balanced-preamp-for-home-audio-2-rca-and-1-xlr-inputs-rca-xlr-outputs-and-sub-out-pre-amp-for-2-channel-stereo-and-2-1-setup-pre-amplifier-with-hpf-high-pass-and-b0f9kp5slh","urn":"MB-AWIN-GB-B0F9KP5SLH"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"189.00","historical_low":"189.00","last_observed_at":"2026-11-11T04:11:09+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":"2026-11-11T04:11:09+00:00"}}