{"sources":[{"id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing","type":"listing","url":"https://prod-jbhifi.myshopify.com/products.json","retrieval_at":"2026-10-05T19:02:44.519Z","source_hash":"91cc30c8043678da0e875d65d1208c8d1b586825ecc5092ffd9d730adde7ef5c","access_verdict":"permitted","robots_result":"allow"}],"summaries":[],"facts":[{"id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:pack:1:jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:fact:0","source_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing","field":"Power handling","ordinal":0,"value_number":null,"unit":null,"value_text":"RMS power handling is 150 Watts and MAX power handling is 300W.","original_value":"RMS Power Handling: 150 Watts • MAX Power Handling: 300W","confidence":1,"citation":{"lineage_tier":"T1","artefact_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:artefact:91cc30c8043678da0e875d65d1208c8d1b586825ecc5092ffd9d730adde7ef5c","start":391,"end":447,"summary_id":null,"excerpt_id":null,"span_sha256":"324b4494903ee8d72541f20eaf466219084a02ecc19c4eb003d0a0fa6984d00e","source_locator":"characters 391 to 447 of the retained text"}},{"id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:pack:1:jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:fact:1","source_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing","field":"Impedance","ordinal":1,"value_number":null,"unit":null,"value_text":"Nominal impedance is 8 ohms.","original_value":"Nominal Impedance: 8 OHMS","confidence":1,"citation":{"lineage_tier":"T1","artefact_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:artefact:91cc30c8043678da0e875d65d1208c8d1b586825ecc5092ffd9d730adde7ef5c","start":363,"end":388,"summary_id":null,"excerpt_id":null,"span_sha256":"624419073b519eba8e516c366c8f824afeac62140b5aee393f7c9ba1f28a5e2a","source_locator":"characters 363 to 388 of the retained text"}},{"id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:pack:1:jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:fact:2","source_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing","field":"Nominal diameter","ordinal":2,"value_number":null,"unit":null,"value_text":"Nominal diameter is 8 inches.","original_value":"Nominal Diameter: 8\"","confidence":1,"citation":{"lineage_tier":"T1","artefact_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:artefact:91cc30c8043678da0e875d65d1208c8d1b586825ecc5092ffd9d730adde7ef5c","start":340,"end":360,"summary_id":null,"excerpt_id":null,"span_sha256":"0f64bd31c6eb3690f4768f8346d307a4c9a6cf495218caac1b17a060d6dfb86f","source_locator":"characters 340 to 360 of the retained text"}},{"id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:pack:1:jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:fact:3","source_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing","field":"Sensitivity","ordinal":3,"value_number":null,"unit":null,"value_text":"Sensitivity is 97 dB (1w/1m).","original_value":"Sensitivity: (1w/1m): 97 dB","confidence":1,"citation":{"lineage_tier":"T1","artefact_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:artefact:91cc30c8043678da0e875d65d1208c8d1b586825ecc5092ffd9d730adde7ef5c","start":450,"end":477,"summary_id":null,"excerpt_id":null,"span_sha256":"5e64b7ff58a7482db31250bc9193c96971c6a61543c3e2e342f88970dd5a8c9d","source_locator":"characters 450 to 477 of the retained text"}},{"id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:pack:1:jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:fact:4","source_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing","field":"Frequency response","ordinal":4,"value_number":null,"unit":null,"value_text":"Frequency response is 60Hz-5KHz.","original_value":"Frequency Response: 60Hz-5KHz","confidence":1,"citation":{"lineage_tier":"T1","artefact_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:artefact:91cc30c8043678da0e875d65d1208c8d1b586825ecc5092ffd9d730adde7ef5c","start":480,"end":509,"summary_id":null,"excerpt_id":null,"span_sha256":"e54bc605e9fbbbc33907b745b29aae92366cb7602da7417789bbadbc70c1dfd0","source_locator":"characters 480 to 509 of the retained text"}},{"id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:pack:1:jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:fact:5","source_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing","field":"Crossover","ordinal":5,"value_number":null,"unit":null,"value_text":"Recommended high-pass crossover is 80 Hz.","original_value":"Recommended Hi Pass Crossover: 80 Hz","confidence":1,"citation":{"lineage_tier":"T1","artefact_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:artefact:91cc30c8043678da0e875d65d1208c8d1b586825ecc5092ffd9d730adde7ef5c","start":512,"end":548,"summary_id":null,"excerpt_id":null,"span_sha256":"ff8e069b10c99a1a5ed1a983cfea739e319bedf7c01123ea234454df51bd3c06","source_locator":"characters 512 to 548 of the retained text"}},{"id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:pack:1:jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:fact:6","source_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing","field":"Motor materials","ordinal":6,"value_number":null,"unit":null,"value_text":"Voice coil is 1.5 inch / 38.1 mm with Kapton former and aluminum winding, paper cone and dust cap, cloth surround, steel basket and ferrite magnet weighing 20 oz.","original_value":"Voice Coil Diameter: 1.5\" / 38.1 mm • Voice Coil Former Material: Kapton • Winding Material: Aluminum • Cone Material: Paper • Dust Cap Material: Paper • Surround Material: Cloth • Basket Material: Steel • Magnet Material: Ferrite • Magnet Weight: 20 oz","confidence":1,"citation":{"lineage_tier":"T1","artefact_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:artefact:91cc30c8043678da0e875d65d1208c8d1b586825ecc5092ffd9d730adde7ef5c","start":588,"end":841,"summary_id":null,"excerpt_id":null,"span_sha256":"7dfb75aa11ddd03b67572adb879d8fa03cdd242807266951db7f94aa5aecd8c2","source_locator":"characters 588 to 841 of the retained text"}},{"id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:pack:1:jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:fact:7","source_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing","field":"Displacement volume","ordinal":7,"value_number":null,"unit":null,"value_text":"Displacement volume is 0.61L / 0.0021ft.","original_value":"Displacement Volume: 0.61L / 0.0021ft","confidence":1,"citation":{"lineage_tier":"T1","artefact_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:artefact:91cc30c8043678da0e875d65d1208c8d1b586825ecc5092ffd9d730adde7ef5c","start":844,"end":881,"summary_id":null,"excerpt_id":null,"span_sha256":"756ce4a9e26088fa8fd8f6568e015ce33a305d7a8b5b813e3d300535e5dc51d7","source_locator":"characters 844 to 881 of the retained text"}},{"id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:pack:1:jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:fact:8","source_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing","field":"Thiele & Small parameters","ordinal":8,"value_number":null,"unit":null,"value_text":"Equivalent volume is 24.6L, one-way excursion 9.8mm, free air resonance 70 Hz, voice coil inductance 0.19 mH and DC resistance 6.95 ohms.","original_value":"Equivalent Volume: 24.6L • Excursion (one way): 9.8mm • Free Air Resonance: 70 Hz • Voice Coil Inductance: 0.19 mH • DC Resistance: 6.95 ohms","confidence":1,"citation":{"lineage_tier":"T1","artefact_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:artefact:91cc30c8043678da0e875d65d1208c8d1b586825ecc5092ffd9d730adde7ef5c","start":910,"end":1051,"summary_id":null,"excerpt_id":null,"span_sha256":"e866fe100e62fafb1556fae885bbcd1d5f578cc28be0234a4bc6671cd2bb7f6c","source_locator":"characters 910 to 1051 of the retained text"}},{"id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:pack:1:jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:fact:9","source_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing","field":"Dimensions","ordinal":9,"value_number":null,"unit":null,"value_text":"Overall diameter is 8.07 inches, overall depth 3.77 inches, front mount baffle cutout 7.28 inches, mounting depth 3.54 inches and motor diameter 4.52 inches.","original_value":"Overall Diameter: 8.07\" • Overall Depth: 3.77\" • Front Mount Baffle Cutout: 7.28\" • Mounting Depth: 3.54\" • Motor Diameter: 4.52\"","confidence":1,"citation":{"lineage_tier":"T1","artefact_id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:quick:source:0:listing:artefact:91cc30c8043678da0e875d65d1208c8d1b586825ecc5092ffd9d730adde7ef5c","start":1067,"end":1196,"summary_id":null,"excerpt_id":null,"span_sha256":"e3d96a8737bc2c708bd25c6083380f97d6f82234717d0f8985a4aec94b423bbf","source_locator":"characters 1067 to 1196 of the retained text"}}],"facet_texts":[],"gaps":[{"id":"jbhifi-com-au--black-diamond-dia-8mb300-8-8-mid-bass-8-ohm-car-speaker-single:pack:1:gap:facets:0","source_type":"facets","url":null,"reason":"embeddings skipped in the store-data batch","detail":"the store-data batch makes no embedding call of any kind; this pack has no facet texts and no vectors","recorded_at":"2026-10-06T04:31:12.220Z"}],"facet_check":null,"evidence_depth":{"note":"Store data: every fact here was written from the product data the store itself publishes (title, vendor, product type, variants, tags and description), as RoboTrunk holds it, and each fact's quote was found word for word in that text. No outside source was read and no web search was made. The grader then checked each fact against that text. A deeper read with outside sources may follow later.","depth":"store_data","model":"deepseek-flash","sources":[{"url":"https://prod-jbhifi.myshopify.com/products.json","role":"the store's own product data","retained":true}],"batch_id":"store-data:jbhifi-com-au:2026-10-06T04-30-22-179Z:524","reasoning":"none","batch_size":10,"embeddings":"skipped in the store-data batch: no embedding call of any kind is made in this mode","merged_stores":[],"description_cut":false,"write_turn_timeout_minutes":10,"facts_dropped_quote_not_found":0}}