Topping E1x2 OTG - Audio Interface｜Independent Power Switch & 600Ω Headphone Power
Topping E1x2 OTG breaks the ceiling for entry-level interfaces, infusing audiophile-grade design into recording equipment. Beyond professional recording capabilities, it is one of the very few desktop audio interfaces in its class equipped with an independent power switch. This allows you to turn the device on and off without unplugging the USB cable, significantly enhancing convenience and safety for desktop management.
For music lovers and producers who demand the highest sound quality, the E1x2 OTG features the flagship NFCA-LE Headphone Amplifier Module. This technology not only achieves an ultra-low noise floor of 1uVrms but also provides astonishing driving power, effortlessly handling everything from sensitive IEMs to 600Ω high-impedance professional monitoring headphones, ensuring a pitch-black background and detailed dynamics.
Core Features & Applications
NFCA-LE 600Ω Powerful Drive
Built with audiophile-grade amplifier circuitry, it boasts a wide power output range. Whether it's sensitive IEMs or demanding 600Ω classic headphones, it delivers full, low-distortion sound performance (THD+N < 0.001%).
Convenient Independent Power Switch
Solves the issue of traditional small interfaces relying on constant USB power. The physical switch allows you to completely cut power when not in use, extending device life and saving energy—a thoughtful detail for desktop setups.
Ultra-linear Pristine Preamp
Uses an ultra-linear microphone preamp module with an EIN as low as -130.5dBu. Combined with its ultra-low noise design, it provides a pristine, uncolored listening experience even when used solely as a high-quality DAC/Amp.
Tech Specs
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Headphone Output Power:
580mW x 2 @ 32Ω (THD+N < 1%)
380mW x 2 @ 64Ω (THD+N < 1%)
198mW x 2 @ 150Ω (THD+N < 1%)
105mW x 2 @ 300Ω (THD+N < 1%)
55mW x 2 @ 600Ω (THD+N < 1%) -
Headphone Output Performance:
Output Impedance: 1Ω
THD+N: -100dB (0.001%)
Noise: 1 uVrms -
Mic Input:
EIN: -130.5dBu
THD+N: 0.0003%
Gain Range: 58dB (Analog) + 20dB (Digital) -
Instrument Input:
Input Impedance: 1MΩ
Dynamic Range: 118dB -
Line Outputs:
Dynamic Range: 115dB
Analogue Dynamic Range: 127dB (-40dB attenuation) - OTG Specs: Supports 24bit/48kHz bidirectional transmission, Dynamic Range 138dB
- Physical Specs: 14.5cm x 12.9cm x 5.0cm | Weight 415g
THINK2 Warranty & Support
- Fast Shipping: In-stock items will be shipped within 24 business hours.
- Professional Technical Support: Our certified audio engineers provide consultation for installation, licensing, compatibility, and basic setup.
- Comprehensive Warranty & After-Sales Service: Includes both manufacturer warranty and THINK2 customer support.
※ Shipping times are calculated based on business days. Delays may occur during holidays or force majeure events. Actual warranty terms follow the manufacturer’s official policy, while THINK2 provides integration and support assistance.
THINK2 Warranty & Return Policy
- With valid proof of purchase and product serial number, customers are entitled to the manufacturer’s warranty and THINK2 after-sales service.
- DOA / Non-human defects: Within 7 days from the purchase date, after verification, customers may request a return or replacement.
- Exclusions: Damages caused by misuse, unauthorized disassembly or modification, consumable parts, natural disasters/force majeure, or improper use beyond specifications and instructions.
- Application Process: Contact customer service during business hours and follow the provided packaging and return instructions.
- Service Coverage: Taiwan region as primary service area; lead time and costs for offshore/overseas service depend on actual logistics standards.
