{"product_id":"sierra-reference","title":"Sierra Reference ","description":"\u003cstyle\u003e\n.product-accordion-wrapper {\n  max-width: 548px;\n  margin: 5px 10px;\n}\ndetails.cell {\n  width: 100%;\n  border: 1.5px solid #E1E4E8;\n  border-radius: 12px;\n  padding: 16px 20px;\n  margin-bottom: 16px;\n  background: #ffffff;\n  transition: border-color 0.25s ease, box-shadow 0.25s ease;\n}\ndetails.cell:hover {\n  border-color: #C9CED6;\n  box-shadow: 0 6px 14px rgba(0,0,0,0.04);\n}\ndetails.cell[closed] {\n  background: #FAFBFC;\n}\ndetails.cell summary {\n  font-weight: 600;\n  font-size: 15px;\n  letter-spacing: 0.3px;\n  color: #0A1A2F;\n  cursor: pointer;\n  list-style: none;\n  display: flex;\n  align-items: center;\n  justify-content: space-between;\n}\ndetails.cell summary::-webkit-details-marker {\n  display: none;\n}\ndetails.cell summary::after {\n  content: \"▾\";\n  font-size: 14px;\n  color: #6B7280;\n  transition: transform 0.25s ease;\n}\ndetails.cell[closed] summary::after {\n  transform: rotate(180deg);\n}\n.desc-intro {\n  margin-top: 18px;\n  padding: 14px 16px;\n  background: #F2F2F2;\n  border-radius: 8px;\n  border-left: 3px solid #D4AF37;\n  font-size: 15px;\n  font-weight: 500;\n  color: #111827;\n  line-height: 1.65;\n}\n.desc-body {\n  margin-top: 14px;\n  font-size: 14px;\n  color: #374151;\n  line-height: 1.65;\n}\n.tech-list {\n  margin-top: 18px;\n  display: grid;\n  gap: 8px;\n}\n.tech-item {\n  display: grid;\n  grid-template-columns: 150px 1fr;\n  align-items: center;\n  padding: 14px 16px;\n  background: #F2F2F2;\n  border-radius: 6px;\n}\n.tech-item:nth-child(even) {\n  background: #FFFFFF;\n}\n.tech-label {\n  font-size: 12px;\n  font-weight: 600;\n  color: #111827;\n}\n.tech-value {\n  font-size: 13.5px;\n  color: #1F2937;\n  line-height: 1.5;\n}\ndetails.cell \u003e *:not(summary) {\n  animation: fadeIn 0.25s ease;\n}\n@keyframes fadeIn {\n  from {\n    opacity: 0;\n    transform: translateY(-4px);\n  }\n  to {\n    opacity: 1;\n    transform: translateY(0);\n  }\n}\n\u003c\/style\u003e\n\u003cdiv class=\"product-accordion-wrapper\"\u003e\n\n\u003cdetails class=\"cell\" open=\"\"\u003e\n\u003csummary\u003e Description\u003c\/summary\u003e\n\u003cp class=\"desc-intro\"\u003e Open-back headphones with \u003cstrong\u003e50mm Peerless™ planar dynamic driver\u003c\/strong\u003e and paper canal design, designed to deliver a wide soundstage, physically present bass, and natural reproduction geared towards critical and professional listening.\u003c\/p\u003e\n\n\u003cp class=\"desc-body\"\u003e The patented \u003cstrong\u003elinear bass extension\u003c\/strong\u003e system allows for a deep and controlled impact, comparable to that of a subwoofer in open headphones, without adding distortion or compromising background silence.\u003c\/p\u003e\n\n \u003cp class=\"desc-body\"\u003eThe premium construction combines \u003cstrong\u003eadvanced polymers and aluminum\u003c\/strong\u003e in a lightweight, rigid, and repairable structure, optimized for long-term use with a weight reduction of over 20% compared to the previous generation.\u003c\/p\u003e\n\n\u003cp class=\"desc-body\"\u003e The 2025 edition incorporates ergonomic improvements with \u003cstrong\u003ea smooth-rotating headband\u003c\/strong\u003e , \u003cstrong\u003ehybrid leather and velvet ear cushions\u003c\/strong\u003e , and \u003cstrong\u003ea 3D baffle\u003c\/strong\u003e for a universal fit, allowing long sessions without physical or auditory fatigue.\u003c\/p\u003e\n\n\u003c\/details\u003e\n\u003cdetails class=\"cell\" open=\"\"\u003e\n\u003csummary\u003e Technical specifications \u003c\/summary\u003e\n\u003cdiv class=\"tech-list\"\u003e\n\n\u003cdiv class=\"tech-item\"\u003e\n\n\u003cdiv class=\"tech-label\"\u003e Guy\u003c\/div\u003e\n\n\u003cdiv class=\"tech-value\"\u003e Open-back dynamic headphones\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"tech-item\"\u003e\n\n\u003cdiv class=\"tech-label\"\u003e Driver\u003c\/div\u003e\n\n\u003cdiv class=\"tech-value\"\u003e Planar dynamic · 50 mm Peerless™ (channel paper)\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"tech-item\"\u003e\n\n\u003cdiv class=\"tech-label\"\u003e Frequency response\u003c\/div\u003e\n\n\u003cdiv class=\"tech-value\"\u003e 20 Hz – 20 kHz\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"tech-item\"\u003e\n\n\u003cdiv class=\"tech-label\"\u003e Bass extension\u003c\/div\u003e\n\n\u003cdiv class=\"tech-value\"\u003e Patented linear decoupling and extension system\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"tech-item\"\u003e\n\n\u003cdiv class=\"tech-label\"\u003e Construction\u003c\/div\u003e\n\n\u003cdiv class=\"tech-value\"\u003e Advanced polymers · aluminum · repairable design\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"tech-item\"\u003e\n\n\u003cdiv class=\"tech-label\"\u003e Weight\u003c\/div\u003e\n\n\u003cdiv class=\"tech-value\"\u003e 340 g (without cable)\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"tech-item\"\u003e\n\n\u003cdiv class=\"tech-label\"\u003e Comfort\u003c\/div\u003e\n\n\u003cdiv class=\"tech-value\"\u003e Optimized 2025 headband · Leather + velvet ear pads · 3D baffle\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"tech-item\"\u003e\n\n\u003cdiv class=\"tech-label\"\u003e Recommended use\u003c\/div\u003e\n\n\u003cdiv class=\"tech-value\"\u003e Critical monitoring · mixing · audiophile reference listening\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"tech-item\"\u003e\n\n\u003cdiv class=\"tech-label\"\u003e Package contents\u003c\/div\u003e\n\n \u003cdiv class=\"tech-value\"\u003ePair of Auribus Acoustics headphones · essential wiring \u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"Auribus Acoustics","offers":[{"title":"Default Title","offer_id":48117592555739,"sku":null,"price":28499.0,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0789\/4194\/6075\/files\/auribus-acoustics-sierra-reference-frente_d249f429-1652-4b53-9866-fd8c4e25dcda.webp?v=1768049630","url":"https:\/\/solucionesaudiofilas.com\/en\/products\/sierra-reference","provider":"Soluciones Audiofilas","version":"1.0","type":"link"}