{"product_id":"tanchjim-ola-ii","title":"TANCHJIM OLA II Coaxial Hybrid IEM (1DD+1BA) | DMT5 Dynamic + PURE-Hi BA, 8-Band PEQ DSP","description":"\u003cp\u003eThe \u003cstrong\u003eTANCHJIM OLA II\u003c\/strong\u003e is a major leap forward from the original OLA — upgrading from a single dynamic driver to a \u003cstrong\u003ecoaxial 1DD + 1BA hybrid architecture\u003c\/strong\u003e, adding three connection options, and introducing a full DSP EQ ecosystem. Built around the proprietary \u003cstrong\u003eDMT5 dual magnetic circuit dual cavity dynamic driver\u003c\/strong\u003e and the \u003cstrong\u003ePURE-Hi ultra-high frequency balanced armature\u003c\/strong\u003e, the OLA II delivers a more complete, coherent, and distortion-free sound than anything at its price point.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cspan style=\"display:inline-block;background:#f5f5f5;border:1px solid #ddd;border-radius:4px;padding:4px 10px;margin:3px;font-size:13px;\"\u003eCoaxial 1DD + 1BA Hybrid\u003c\/span\u003e\n\u003cspan style=\"display:inline-block;background:#f5f5f5;border:1px solid #ddd;border-radius:4px;padding:4px 10px;margin:3px;font-size:13px;\"\u003eDMT5 Dual Magnetic Circuit\u003c\/span\u003e\n\u003cspan style=\"display:inline-block;background:#f5f5f5;border:1px solid #ddd;border-radius:4px;padding:4px 10px;margin:3px;font-size:13px;\"\u003ePURE-Hi BA Driver\u003c\/span\u003e\n\u003cspan style=\"display:inline-block;background:#f5f5f5;border:1px solid #ddd;border-radius:4px;padding:4px 10px;margin:3px;font-size:13px;\"\u003eTHD 0.03% @ 1kHz 94dB\u003c\/span\u003e\n\u003cspan style=\"display:inline-block;background:#f5f5f5;border:1px solid #ddd;border-radius:4px;padding:4px 10px;margin:3px;font-size:13px;\"\u003e121dB\/Vrms Sensitivity\u003c\/span\u003e\n\u003cspan style=\"display:inline-block;background:#f5f5f5;border:1px solid #ddd;border-radius:4px;padding:4px 10px;margin:3px;font-size:13px;\"\u003e8-Band PEQ DSP\u003c\/span\u003e\n\u003cspan style=\"display:inline-block;background:#f5f5f5;border:1px solid #ddd;border-radius:4px;padding:4px 10px;margin:3px;font-size:13px;\"\u003e3.5mm \/ 4.4mm \/ DSP Type-C\u003c\/span\u003e\n\u003cspan style=\"display:inline-block;background:#f5f5f5;border:1px solid #ddd;border-radius:4px;padding:4px 10px;margin:3px;font-size:13px;\"\u003eLitz Silver-Plated Copper Cable\u003c\/span\u003e\n\u003cspan style=\"display:inline-block;background:#f5f5f5;border:1px solid #ddd;border-radius:4px;padding:4px 10px;margin:3px;font-size:13px;\"\u003e0.78mm 2-Pin\u003c\/span\u003e\n\u003cspan style=\"display:inline-block;background:#f5f5f5;border:1px solid #ddd;border-radius:4px;padding:4px 10px;margin:3px;font-size:13px;\"\u003e8–48kHz Frequency Response\u003c\/span\u003e\n\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eDMT5 Dual Magnetic Circuit Dual Cavity Dynamic Driver\u003c\/strong\u003e\u003cbr\u003eThe 10mm DMT5 driver features a fully transparent large magnetic circuit structure that maximizes space utilization within the driver housing. The dual magnetic circuit increases magnetic flux density and field uniformity in the voice coil gap, while the dual cavity structure precisely manages the air load on both sides of the diaphragm. The result: longer diaphragm excursion, stronger low-frequency dynamics, and better large-signal response. The diaphragm system has been re-matched to the DMT5 magnetic circuit via finite element modal analysis, optimizing displacement distribution, stress, boundary compliance, and high-frequency modal behavior.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePURE-Hi Ultra-High Frequency Balanced Armature\u003c\/strong\u003e\u003cbr\u003eThe dedicated PURE-Hi BA driver handles the extreme treble extension, overtones, and air that a dynamic driver alone would struggle to reproduce cleanly at high loads. By offloading the ultra-high frequency range to the BA, the DMT5 dynamic driver can focus entirely on low, mid, and fundamental treble frequencies — resulting in a more complete and harmonious sound. Compared to the original OLA's THD of \u0026lt;0.3% at 1kHz\/94dB, the OLA II achieves \u003cstrong\u003eTHD of 0.03%\u003c\/strong\u003e — a 10× reduction in distortion.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCoaxial Driver Architecture\u003c\/strong\u003e\u003cbr\u003eThe DMT5 dynamic driver and PURE-Hi BA are placed on the same acoustic axis. Different frequency bands enter the ear canal along a closer, more unified acoustic axis, reducing imaging shift caused by driver position differences. The result is higher direct-sound ratio, more focused imaging, precise treble, and more coherent vocals and instruments across the full frequency range.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHelmholtz Rear Cavity for Vocal Density\u003c\/strong\u003e\u003cbr\u003eThe rear cavity is engineered as a large Helmholtz resonator. Through the combination of cavity volume, acoustic neck geometry, and rear cavity air compliance, it establishes stable energy support in the vocal frequency band. Male vocals are grounded and full-bodied; female vocals have structure and presence. Midrange instruments are clearly outlined, while overall listenability remains high.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDSP Type-C Version with 8-Band PEQ\u003c\/strong\u003e\u003cbr\u003eThe DSP Type-C version uses the same DSP-Master performance platform, supporting \u003cstrong\u003e384kHz\/32-bit\u003c\/strong\u003e decoding and \u003cstrong\u003e8-band parametric EQ\u003c\/strong\u003e via the TANCHJIM App. Users can adjust center frequency, gain, and Q value for each band — preserving the original tuning or customizing by music genre, source device, ear tip, or personal preference. The TANCHJIM App community also provides access to shared EQ presets and tuning profiles.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThree Connection Versions\u003c\/strong\u003e\u003cbr\u003eChoose the version that fits your setup:\u003cbr\u003e\n— \u003cstrong\u003e3.5mm\u003c\/strong\u003e: Single-ended, includes microphone\u003cbr\u003e\n— \u003cstrong\u003e4.4mm\u003c\/strong\u003e: Balanced output, no microphone\u003cbr\u003e\n— \u003cstrong\u003eDSP Type-C\u003c\/strong\u003e: Digital connection with 8-band PEQ and microphone, supports 384kHz\/32-bit\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eErgonomic Design \u0026amp; Premium Build\u003c\/strong\u003e\u003cbr\u003eThe OLA II continues the original OLA's distinctive rounded-square form language in a lightweight, compact body. The faceplate is precision CNC-machined from aerospace-grade aluminum alloy, paired with a transparent PC cavity that reveals the internal acoustic structure. Optimized based on 3,000+ ear scan data points, the shell curvature, nozzle angle, and support positions are recalibrated for a secure, fatigue-free fit even during extended listening sessions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLitz Silver-Plated Copper Cable\u003c\/strong\u003e\u003cbr\u003eThe included cable uses a Litz twisted silver-plated copper structure, reducing electrical interference between conductors and minimizing high-frequency loss. The silver-plated copper conductor balances conductivity with high-frequency transmission performance, while the twisted Litz structure further improves stability and EMI rejection.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eTANCHJIM OLA II\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eDriver Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e10mm DMT5 Dual Magnetic Circuit Dual Cavity Dynamic Driver + PURE-Hi Ultra-High Frequency BA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eAcoustic Structure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eCoaxial Hybrid (1DD + 1BA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eTHD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e0.03% @ 1kHz, 94dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eImpedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e30Ω ± 10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eSensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e121dB\/Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e8–48kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eConnection Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e3.5mm Single-Ended (with mic) \/ 4.4mm Balanced (no mic) \/ DSP Type-C (with mic, 8-band PEQ)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eDSP Version\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e8-Band PEQ, 384kHz\/32-bit, TANCHJIM App EQ Community\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003ePin Connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e0.78mm 2-Pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eLitz Silver-Plated Copper Twisted Braid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eShell Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eCNC Aerospace Aluminum Alloy Faceplate + Transparent PC Cavity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cp\u003eTANCHJIM OLA II Earphones × 1 pair  |  Cable × 1 (matching purchased version)  |  Ear Tips × 6 pairs  |  Carrying Pouch × 1  |  Documentation\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e* 3.5mm and DSP Type-C versions include microphone. 4.4mm version does not include microphone.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/2210495224087\/O1CN01ySKoC31g3ts3k7WQz_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/2210495224087\/O1CN0189Ezpb1g3ts4HcKxk~crop,0,0,1500,1574~_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/2210495224087\/O1CN0189Ezpb1g3ts4HcKxk~crop,0,1574,1500,1528~_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/2210495224087\/O1CN01HzNfaN1g3ts3Y3czl_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/2210495224087\/O1CN01hHGZPl1g3ts3iG2K3_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/2210495224087\/O1CN01fmzS1M1g3ts3gcBPt_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/2210495224087\/O1CN01MOv4KH1g3ts3qEWEM_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/2210495224087\/O1CN01e9t8TI1g3ts3gbJNZ_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/2210495224087\/O1CN01UhzeXF1g3ts3W4moD_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/2210495224087\/O1CN01qnKn8g1g3ts3kdfZY_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/2210495224087\/O1CN01vLpezY1g3ts3qDupE_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/2210495224087\/O1CN018tZZ0X1g3ts4Haf71_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/2210495224087\/O1CN01q0iY121g3ts3hazuG_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/2210495224087\/O1CN01bfdtGo1g3ts3wxpws_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/2210495224087\/O1CN01E2Lzvi1g3trzECwcV_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/2210495224087\/O1CN01ab5cWM1g3ts3o1tUu_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/2210495224087\/O1CN01jeJBJO1g3ts3qEaQ7_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/2210495224087\/O1CN01PBlfKg1g3trzECTXH~crop,0,0,1500,1440~_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/2210495224087\/O1CN01PBlfKg1g3trzECTXH~crop,0,1440,1500,1675~_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/2210495224087\/O1CN01OvloPJ1g3ts3kfgHs_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/2210495224087\/O1CN01Eiq0xQ1g3ts3R5TQ4_!!2210495224087.jpg\" style=\"display:block;width:100%;max-width:100%;margin:10px 0;\"\u003e\n\u003cimg src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/2210495224087\/O1CN01tdMIUK1g3ts3k6zFO_!!2210495224087.jpg\" style=\"display:block;width:100%;max-w\"\u003e\u003c\/p\u003e","brand":"TANCHJIM","offers":[{"title":"OLA II Type-C","offer_id":50288801415407,"sku":"1005012685021874-OLA II Type-C","price":54.95,"currency_code":"EUR","in_stock":true},{"title":"OLA II 4.4mm noMIC","offer_id":50288801448175,"sku":"1005012685021874-OLA II 4.4mm noMIC","price":52.95,"currency_code":"EUR","in_stock":true},{"title":"OLA II 3.5mm MIC","offer_id":50288801480943,"sku":"1005012685021874-OLA II 3.5mm MIC","price":52.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/2004\/1455\/files\/Se9a398bb9f3643648037ec01da3f5227P.webp?v=1785745462","url":"https:\/\/thehificat.com\/en-de\/products\/tanchjim-ola-ii","provider":"The HiFi Cat","version":"1.0","type":"link"}