{"product_id":"symphony-ii-5-212-c8-25-hex","title":"Symphony II 5-212\/C8\/25 HEX","description":"\u003cp\u003eThe \u003cstrong\u003eETON Symphony II 5-212\u003c\/strong\u003e is a top-class 5\" midwoofer driver for audiophile DIY loudspeaker projects and speaker manufacturers that demand Hexacone diaphragm technology, genuine deep bass extension down to below 50 Hz, and a wide range of applications from deep bass to the midrange. The heart of the Symphony II 5-212 is the \u003cstrong\u003epatented multilayer Hexacone diaphragm\u003c\/strong\u003e: the honeycomb structure, adopted from aerospace technology, combines exceptional flexural rigidity with low moving mass (Mmd = 9.6 g) and an effective radiating area of Sd = 80 cm². The Hexacone diaphragm remains dimensionally stable even at high excursions up to Xmax ±2.5 mm – linear, controlled, without partial resonances at high levels. With a resonance frequency of 53 Hz (TSP), a force factor of BL = 5.8 Tm, and a power handling of 50 W (IEC 60268-5), the Symphony II 5-212 delivers a high-SPL, deep-reaching reproduction from 53 Hz to approx. 2–3 kHz.\u003c\/p\u003e\n\u003cp\u003eWith a Qts of 0.43 and an equivalent volume of 8.5 dm³, the Symphony II 5-212 is flexibly designed for bass-reflex enclosures from approx. 10–20 liters – with optimal tuning around 40–50 Hz, deep bass extension down to below 40 Hz is achievable. The mechanical Xmax of ±7.5 mm provides a generous safety margin beyond the linear range – even at 50 W and low frequencies, reproduction remains controlled and low in distortion. With a total diameter of 148 mm and a weight of 1.26 kg, the Symphony II 5-212 is the 5\" format in the Symphony II range for projects that demand genuine deep bass and Hexacone diaphragm quality in a compact enclosure. Made in Germany, from the ETON factory.\u003c\/p\u003e\n\u003ch2\u003eWhy the ETON Symphony II 5-212 for your project?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented multilayer Hexacone diaphragm\u003c\/strong\u003e: aerospace technology in loudspeaker construction – dimensionally stable at the highest levels, linear at 50 W as at 1 W, without partial resonances\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBL = 5.8 Tm \/ fs 53 Hz (TSP) \/ Sd = 80 cm²\u003c\/strong\u003e: powerful motor with generous diaphragm area for deep-reaching bass reproduction down to below 40 Hz in a bass-reflex enclosure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eXmax ±2.5 mm electrical \/ ±7.5 mm mechanical\u003c\/strong\u003e: high linear excursion for low-distortion reproduction even at 50 W and low frequencies below 50 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQts 0.43 \/ Vas 8.5 dm³\u003c\/strong\u003e: designed for bass-reflex enclosures from approx. 10–20 liters – compact 2-way loudspeakers with genuine deep bass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e88 dB \/ 50 W (IEC 60268-5) \/ Ferrite 1.15 T \/ Le = 0.46 mH\u003c\/strong\u003e: high efficiency and thermal power handling for high-SPL reproduction in long-term operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e148 mm Ø, 68 mm depth, 1.26 kg\u003c\/strong\u003e: compact 5\" format for 2-way and 3-way systems with genuine deep bass. Made in Germany.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor DIY projects and speaker manufacturers that demand Hexacone diaphragm technology, genuine deep bass, and a wide range of applications in a compact 5\" format – the ETON Symphony II 5-212. Made in Germany, from the ETON factory.\u003c\/p\u003e","brand":"ETON Soundsysteme GmbH","offers":[{"title":"Default Title","offer_id":56768973832575,"sku":null,"price":150.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0975\/3516\/4799\/files\/symphony_5212_front.png?v=1773153051","url":"https:\/\/eton-hifi.com\/en\/products\/symphony-ii-5-212-c8-25-hex","provider":"ETON Soundsysteme GmbH","version":"1.0","type":"link"}