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OPA2211+BD139+BD140 based amplifier
In order to reduce the noise issues with a 5V power supply
Topping A70 Pro features a newly-developed ultra-low noise input stage which further improves the noise performance of the balanced input
Gustard A26 brings easy access to high-quality online music streaming with different app support including Room
Along with these two balanced connections
BQEYZ Weather Series Frost 10mm Dynamic Driver +Micro Planar Transducers IEM Color:Frost-3.5mm OPA2211+BD139+BD140 based amplifier*The curve is measured by a third party and is for reference only. Specification: 1. Item: Frost 2. Driver Unit: Dynamic Driver + Micro Planar Transducers 3. Dynamic Driver: 10mm 4. Impedance: 32 5. Sensitivity: 113 dB 6. Frequency: 5 40KHz 7. Cable Length: 1. 2m 8. Pin Type: 0. 78mm 2 Pin 9. Plug Type: 3. 5mm or 4. 4mm 10. Diaphragm: PU and PEEK Composite Diaphragm 11. Cable Specification: Silver plated Coaxial Mixed Cable 12. Contents: Earphone*1
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