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FIIO E11K Kilimanjaro 2
High-performance, compact, metal portable amplifier.
OPA1642 operational amplifier + LMH6643 buffer: clean, dynamic sound with firm bass
Controls: Gain (2 levels) and switchable bass boost
Power: Up to 270 mW @ 32 Ω (16–150 Ω headphones)
Response: 20 Hz – 20 kHz, SNR > 108 dB
1400 mAh Li-Poly battery, up to 16 hours of battery life
Connections: 3.5 mm stereo mini-jack input/output
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FiiO E11K Kilimanjaro 2: Portable Headphone Amplifier
The FiiO E11K Kilimanjaro 2 is a portable headphone amplifier designed to deliver more powerful, dynamic, and cleaner sound — the perfect choice for anyone looking to enhance their music on the go. Its internal circuitry has been completely redesigned compared to the original model, achieving lower noise levels and reduced distortion, even with demanding headphones.
Equipped with a high-fidelity OPA1642 op-amp and an LMH6643 output buffer, the E11K ensures excellent transparency, precise instrument separation, and tight, controlled bass. It also features a gain switch and a bass boost switch, allowing listeners to customize the sound according to their preferences and headphone type.
Its compact and lightweight all-metal body makes it an ideal companion for portable players or smartphones, without sacrificing durability or an elegant design.
Key Features
High-performance portable headphone amplifier.
OPA1642 op-amp for low distortion and high sound quality.
LMH6643 buffer for powerful, stable current output.
Two-level gain switch to match different headphones.
Switchable bass boost for enhanced low-frequency impact.
Wide and linear frequency response for maximum fidelity.
Brushed aluminum construction: compact, robust, and stylish.
Rechargeable lithium battery with up to 16 hours of playback.
3.5 mm stereo input and output.
Technical Specifications
Frequency response: 20 Hz – 20 kHz
Signal-to-noise ratio (SNR): > 108 dB
Output power: up to 270 mW at 32 Ω
Recommended headphone impedance: 16 – 150 Ω
Gain: Low/High selectable
Bass boost: ON/OFF
Connections: 3.5 mm stereo input and output
Battery: 1400 mAh Li-Poly rechargeable via micro-USB
Battery life: up to 16 h (depending on usage)
Dimensions: 91 × 56 × 13 mm
Weight: approx. 92 g
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