DUNU Vulkan 2 8-Driver Hybrid In-Ear Monitor
The DUNU Vulkan 2 is the new generation of the Vulkan series: an eight-driver hybrid in-ear monitor with two dynamic drivers and six balanced armatures per side. Official materials describe it as a revamped architecture designed for vocals, with a hybrid physical and electronic 4-way crossover, independent 10mm and 8mm dynamic drivers, custom Knowles dual midrange BAs, and a CNC-machined aerospace-grade aluminum shell. Frequency response is 5Hz–40kHz; impedance is 35Ω; sensitivity is 113dB/mW (@1kHz).
8-Driver Hybrid Architecture
Each side uses a 2DD + 6BA array: one independent ultra-low-frequency dynamic driver, one independent low-frequency dynamic driver, two custom Knowles midrange balanced armatures, and four custom high- and ultra-high-frequency balanced armatures. DUNU’s Japanese official page states that, compared with the previous Vulkan, this layout is intended to provide denser frequency information, richer vocals, deeper bass texture, and a wider stage.
Independent 10mm and 8mm Dynamic Drivers
Low frequencies are split between a 10mm sub-bass driver and an 8mm bass driver, each in its own acoustic chamber. Official copy states this is not a coaxial or parallel dual-dynamic layout: the physically separated chambers are used to reduce mutual interference and improve dynamic control. DUNU describes the result as fuller, deeper, and more distinct bass, with improved rear-chamber airflow for bass extension.
Custom Knowles Dual Midrange Balanced Armatures
The midrange is assigned to two custom Knowles balanced armature drivers. DUNU’s global product page states that this pair renders vocals with warmth and emotional depth — lush, forward, and full of nuance. The Japanese official page adds that Vulkan 2 was designed for vocals, with a rich midrange presence, clear layering, and the emotional depth of modern vocal recordings.
Custom Quad Balanced Armatures for Treble
Treble and ultra-high frequencies are handled by four custom balanced armature drivers. Official English copy states that they reproduce treble and air with outstanding resolution and grace, with sparkling extension and effortless detail retrieval. These four units are specified as custom high- and ultra-high-frequency BAs; they are not listed as Knowles.
Hybrid Physical and Electronic 4-Way Crossover
Vulkan 2 uses a dual-system 4-way crossover: four independent acoustic channels for sub-bass, bass, mids, and treble, plus dedicated electronic filtering. Official materials state that this hybrid system is used for accurate frequency control, smooth transitions between bands, and coherent phase alignment.
CNC-Machined Aerospace-Grade Aluminum Shell
The shells are CNC-machined from aerospace-grade aluminum alloy in a champagne-gold finish. Official copy describes a silky surface, a warm champagne-gold tone, and a blend of performance, durability, and a premium tactile feel. Net weight is approximately 8g per side.
Silver-Plated Single-Crystal Copper Cable with Q-Lock Mini
The stock cable is a 1.2m ±0.1m, 4-core high-purity silver-plated single-crystal copper cable in a Litz configuration (Japanese official page). The global spec sheet lists patented Catch-Hold MMCX earpiece connectors. The Japanese official page states that the Japan-market model uses 0.78mm 2-pin instead. Q-Lock Mini includes 3.5mm single-ended and 4.4mm balanced plugs, so the listening setup can be switched without changing the cable.
Accessory Kit
The Japanese official page lists a larger carrying case, an inner pouch sized for a USB DAC or dongle, a protective pouch, a cleaning brush, and a microfiber cloth. Official eartips named on that page are DUNU Candy Eartips and S&S Eartips. DUNU describes them as signature tips for a more immersive listen, covering both a warmer vocal presentation and a more spacious, studio-style presentation.
About DUNU
DUNU designs premium high-resolution dynamic and hybrid in-ear monitors for demanding listeners. Official brand copy states that the company has ODM/OEM roots manufacturing for major global audio and telecommunications brands, and has developed professional and consumer earphones since 1994. DUNU consumer earphones entered the Japanese market in 2011.
Technical Specifications
Model: VULKAN 2
Driver configuration: 8-driver hybrid per side (2DD + 6BA)
Dynamic drivers: 1 × independent ultra-low-frequency DD (10mm sub-bass), 1 × independent low-frequency DD (8mm bass)
Balanced armatures: 2 × custom Knowles midrange BA, 4 × custom high- and ultra-high-frequency BA
Crossover: 4-way, physical (independent acoustic channels) + electronic filtering
Frequency response: 5Hz – 40kHz
Impedance: 35Ω
Sensitivity: 113dB/mW (@1kHz), 128dB/Vrms (@1kHz)
THD: <0.3% (@1kHz)
Shell material: aerospace-grade aluminum alloy, champagne gold
Net weight: approximately 8g per side
Cable: 4-core high-purity silver-plated single-crystal copper, 1.2m ±0.1m (Litz, Japanese official page)
Earpiece connector (global spec): patented Catch-Hold MMCX
Earpiece connector (Japan official page): 0.78mm 2-pin
Plug system: Q-Lock Mini (3.5mm single-ended and 4.4mm balanced included)
In the box (Japanese official page):
- DUNU Vulkan 2 in-ear monitors
- 4-core silver-plated single-crystal copper cable
- Q-Lock Mini 3.5mm plug
- Q-Lock Mini 4.4mm plug
- Carrying case
- Inner pouch (USB DAC / dongle)
- Protective pouch
- Cleaning brush
- Microfiber cloth
- Candy Eartips
- S&S Eartips
Q&A
What is the driver configuration of the DUNU Vulkan 2?
Each side uses eight drivers: 1 × 10mm dynamic (sub-bass), 1 × 8mm dynamic (bass), 2 × custom Knowles midrange BA, and 4 × custom high- and ultra-high-frequency BA.
Are all six balanced armatures Knowles?
No. Official materials specify Knowles for the two midrange drivers only. The four treble / ultra-high drivers are listed as custom BAs.
Does Vulkan 2 use a 4-way crossover?
Yes. Official materials specify a hybrid 4-way system with four independent acoustic channels plus electronic filtering.
What plugs are included?
Q-Lock Mini 3.5mm single-ended and 4.4mm balanced plugs.
Is the earpiece connector MMCX or 2-pin?
The global official spec lists patented Catch-Hold MMCX. The Japanese official page states that the Japan-market model uses 0.78mm 2-pin. Confirm the variant before listing.
What are the impedance and sensitivity?
35Ω. Sensitivity is 113dB/mW (@1kHz) and 128dB/Vrms (@1kHz) on the global spec sheet.
