A Questionnaire About FiiO K9 Pro
Distinguished FiiO users,
First, we would like to express our gratitude to you for choosing the FiiO K9Pro. In order to better know the usage scenarios and further improve our products, we are making a questionnaire about the K9Pro and would like to invite you to participate in it. Thank you so much for your time and support.
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1. Why would you choose the FiiO K9 Pro? (Multiple answers) *
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2. Where do you often use the K9 Pro? (Multiple answers) *
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3. What devices do you usually use with the K9 Pro? (Multiple answers) *
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4. What earphone/speaker models do you usually use with the K9 Pro? *
5. Which output of the K9 Pro do you often use? (Multiple answers) *
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6. Which input of the K9 Pro do you often use? (Multiple answers) *
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7. What kind of music do you usually listen to? (Multiple answers) *
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8. Will you adjust the audio settings for the K9 Pro? Or how do you use it? (Multiple answers) *
9. What kind of filter do you like to use? *
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10. How long do you usually listen to music? *
11. Are you satisfied with the sound of the K9 Pro? Can the K9 Pro meet your needs? Are there any shortcomings? *
12. Did you have any problems when using the K9 Pro? *
13. If the full score is 5, how much will you give the K9 Pro? *
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