New DAC&Headphone AMP questionnaire survey

New DAC&Headphone AMP questionnaire survey
Hello everyone!
A few months ago, we launched a new product called the SK02 DAC&Headphone AMP, which received a lot of love and valuable feedback. Now we are preparing to create an upgraded version of SK03 on top of SK02. We are committed to meeting your audio needs and preferences, and your feedback is invaluable to us.
We kindly ask you to take a moment to complete this survey. Your insights will help us ensure that our new product meets your expectations and preferences. We greatly appreciate your time and input!
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1. What DAC chip do you prefer for DAC Headphone amplifiers?Why？
ESS Sabre
AKM
Cirrus Logic
Not very familiar with operational chips.
Don't care, as long as the sound quality is good
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2. What operational amplifier chip do you prefer for DAC Headphone amplifiers?Why？
For example
Don't care, as long as the sound quality is good
Not very familiar with operational chips.
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3.Would you buy a small-sized DAC headphone amplifier like SK02?Why?https://www.amazon.com/Fosi-Audio-SK02-Headphone-Amplifier/dp/B0CRB676R5
YES
NO
It doesn't matter, I care more about other things
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4.Where would you likely to use thie headphone amplifier? Which type of input and output interfaces would be needed in the corresponding scenarios?[Multiple]
Bedroom
Living room
Library or other public places
Office
Other
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5. Do you want a built-in battery in the DAC headphone amplifier?Why?
YES
NO
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6. What are the input interfaces that will affect your purchase of desktop DAC Headphone Amplifier?[Multiple]
USB Input
BT Input
OPT Input
COA Input
RCA Input/AUX Input
Other (please specify)
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7. What are the output interfaces that will affect your purchase of desktop DAC Headphone Amplifier?[Multiple]
RCA Output/AUX Output
3.5mm/6.35mm headphone Output
4.4mm headphone Output
BT Output
Other (please specify)
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8. Do you prefer USB 5V or DC12V for the power interface of the DAC headphone amplifier? Why?[Multiple]
USB
DC
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9.What other factors do you value more about desktop DAC headphone amplifier?[Multiple]
Tone quality
The output power of the headphone jack.（32Ω）
Other
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10. What scenario would you use the DAC headphone amplifier for?[Multiple]
Listen to the music
Game
Watch movie
Do you have any other suggestions for DAC headphone amplifier?
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