{"indrexa_id":"5bc0727f-727f-5b78-9b1d-95a40ac0cc76","category_id":"headphones","product_title":"Neumann NDH 30 Open-back Studio Headphones","brand":"Neumann","upc":"615104355583","asin":"B09TQ7NH72","semantic_description":"The Neumann NDH 30 is a wired, open-back, over-ear studio headphone priced at $668 in the premium tier, featuring 120-ohm impedance, a flat frequency response, and high-precision stereo imaging optimized for mixing and mastering. It is praised for exceptional sound quality and a wide soundstage, and is built with premium materials. Due to its open-back design and high impedance, it is not suitable for use in noisy environments or with low-powered mobile devices without a dedicated headphone amplifier.","best_for_summary":"Best for professional audio engineers, mixing and mastering engineers, and serious audiophiles who require a flat, reference-grade sound signature and precise stereo imaging in a controlled studio or home listening environment.","not_ideal_for":["Commuters or travelers needing noise isolation","Wireless or Bluetooth users","Listeners without a dedicated headphone amplifier capable of driving 120-ohm impedance"],"use_case_tags":["studio","audiophile","premium-audio","home","podcast"],"buyer_profile_tags":["audiophile","music-producer","remote-worker"],"manufacturer_description":"The Portable Sound Reference - The NDH 30 is a circumaural, open-back headphone with outstanding detail resolution and high-precision stereo imaging with razor-sharp localization. Its linear soundstage and superior transient response recommend it for the most demanding applications such as mixing and mastering.","feature_bullets":["Demo Open-back Studio Headphone"],"spec_table":[{"field":"Brand","value":"Neumann"},{"field":"Color","value":"White Aluminum, Gray Headband and Earcups"},{"field":"Ear Placement","value":"Open Ear"},{"field":"Form Factor","value":"Over Ear"},{"field":"Impedance","value":"120 Ohms"}],"bought_in_past_month":null,"variants":["B09TQ7NH72","B0CCSY7H62"],"shipping_amount":"FREE","manufacturer":"Sennheiser","climate_pledge_friendly":false,"category_specs":{"is_foldable":false,"is_wireless":false,"is_open_back":true,"impedance_ohms":120,"has_wired_option":true,"has_transparency_mode":false,"has_multipoint_connection":false,"has_active_noise_cancellation":false},"review_intelligence":{"total_reviews":114,"average_rating":4.3,"rating_distribution":{"1_star":"6%","2_star":"8%","3_star":"3%","4_star":"9%","5_star":"74%"},"top_positive_themes":["Sound quality (20)","Build quality (12)"],"top_negative_themes":[],"top_mixed_themes":["Value for money (9)","Comfort (8)"],"review_summary":"Customers praise the headphones' exceptional sound quality, with one noting their large soundstage and another highlighting their flat frequency response. The build quality is superb, and while some find them very comfortable, others disagree. Customers have mixed opinions about the value for money, with some finding them worth the price while others consider them pricey.","reliability_score":"high"},"best_offer":{"retailer":"amazon","retailer_id":"B09TQ7NH72","price_usd":696.25,"original_price_usd":null,"affiliate_url":"https://www.indrexa.com/go/neumann-ndh-30-open-back-studio-5bc0727f/amazon","in_stock":true,"shipping":{"free_shipping_available":null,"free_shipping_note":null,"min_order_for_free_shipping":null},"last_updated":"2026-06-03T20:04:52.021051+00:00"},"all_offers":[{"retailer":"amazon","retailer_id":"B09TQ7NH72","price_usd":696.25,"original_price_usd":null,"affiliate_url":"https://www.indrexa.com/go/neumann-ndh-30-open-back-studio-5bc0727f/amazon","in_stock":true,"shipping":{"free_shipping_available":null,"free_shipping_note":null,"min_order_for_free_shipping":null},"last_updated":"2026-06-03T20:04:52.021051+00:00"}],"_llm_hints":{"best_offer_logic":"lowest price among in-stock offers","out_of_stock_offers_included":true,"use_affiliate_url":"always use affiliate_url field, never construct retailer URLs manually","shipping_note":"shipping costs are estimates only — final cost depends on user location and membership status","null_fields":"null spec or review fields mean data was unavailable from source — do not infer values","manufacturer_description":"brand's own product description — official copy from Amazon listing","feature_bullets":"array of manufacturer's bullet-point features from Amazon listing","spec_table":"raw structured spec table from Amazon — category-specific technical specs","bought_in_past_month":"Amazon demand signal — number of units sold in past 30 days","variants":"array of ASINs for color/size variants of this product","shipping_amount":"shipping cost signal — FREE indicates free shipping available","climate_pledge_friendly":"Amazon Climate Pledge Friendly badge — sustainability certification","data_freshness":"checked_at timestamp from most recent price record","best_offer_null_means":"all known offers are currently out of stock — check all_offers for availability"},"json_ld":{"@context":"https://schema.org","@type":"Product","name":"Neumann NDH 30 Open-back Studio Headphones","brand":{"@type":"Brand","name":"Neumann"},"description":"The Neumann NDH 30 is a wired, open-back, over-ear studio headphone priced at $668 in the premium tier, featuring 120-ohm impedance, a flat frequency response, and high-precision stereo imaging optimized for mixing and mastering. It is praised for exceptional sound quality and a wide soundstage, and is built with premium materials. Due to its open-back design and high impedance, it is not suitable for use in noisy environments or with low-powered mobile devices without a dedicated headphone amplifier.","sku":"5bc0727f-727f-5b78-9b1d-95a40ac0cc76","identifier":[{"@type":"PropertyValue","name":"asin","value":"B09TQ7NH72"},{"@type":"PropertyValue","name":"indrexa_id","value":"5bc0727f-727f-5b78-9b1d-95a40ac0cc76"}],"offers":[{"@type":"Offer","url":"https://www.indrexa.com/go/neumann-ndh-30-open-back-studio-5bc0727f/amazon","priceCurrency":"USD","price":696.25,"availability":"https://schema.org/InStock","seller":{"@type":"Organization","name":"Amazon"}}],"additionalProperty":[],"gtin":"615104355583","aggregateRating":{"@type":"AggregateRating","ratingValue":4.3,"reviewCount":114}}}