Specifications: 3.5mm AUX input / output, SNR> 100db, THD + N 0.0003 %, 10-300Ω headphones can be supported. You can enjoy music anywhere. Aluminum outer shell reduces external obstruction. In addition, it has a good touch and does not need to worry about durability.
K7 – Single‑ended (3.5mm) : 600mW @ 32Ω; Balanced (4.4mm) : 2100mW @ 32Ω. Bottom line : The K7’s balanced output (2100mW) is overwhelmingly more powerful, capable of driving most high‑impedance, hard‑to‑drive audiophile headphones.
New open box condition comes with everything as pictured. Box opened to verify and display contents inside.
1x Fosi Audio DAC-K7. Versatile DAC Amp: T he K7 is d e signed for both HiFi headphone audiophiles and music lovers. It can serve as a powerful hub for building your desktop audio system. Whether your're enjoying music, gaming or working, the K7 handles it all with ease.
HiFi headphone amplifier, delicate, compact, lightweight, and portable, which make it convenient to carry, can output remarkable sound without distortion. 16-300Ω Mini HiFi headphone amplifier, It is delicate, compact, lightweight, and portable that it can be carry conveniently.
16-300Ω Mini HiFi Headphone Amplifier Portable Earphone AMP w/ 3.5mm Audio Cable Features Headphone amplifier Audio Input: 3.5 mm Jack, Audio output: 3.5 mm Jack Headphone amplifier using Time More Than 15 Hours Small size Portable Headphone Amplifier which make it convenient to carry High/Low gain switch for optimal performance of the headphones. Load Impedance 16-300Ω works for SONY， Sennheiser RS120, HDR 120 and beyerdynamic headphone. Package Included 1 x Hi-Fi Headphone Amplifier FAQ: Q: It is turned to the maximum, but the volume is still not loud enough. What should I do? A: Our product is designed with a gain switch which can be set to H position if the sound is not loud enough. Q: My headphone impedance is 200Ω. It can work? A: According to our design theory, the product can support a headphone with 16-300 Ω impedance. Therefore that is completely OK. Q: Does USB have a decoding function? A: USB of this product only has a charge function, does not have OTG decoding function.You can purchase the related products of our company if you need a encoding function. Q: All cables are connected, but there is no audio output? A: 1. Please check the power indicator is on, if not, turn the potentiometer on. 2. If the power indicator lights, check that the VOL knob is in the smallest state, if it is, and it is normal to rotate clockwise in the minimum state. 3. If both of the above are normal, check whether the audio source playback device is paused, muted, or the volume is minimal. Q: The device can work, but the intensity of music is not well? A: The battery output is not enough and needs to be charged. Q: Why the headphone has a big buzzing sound when the input line is connected but not play? A: When an unshielded signal line is empty, an interference signal will enter the amplifier and be amplified. If you dislike the sound, we suggest you replace the shielded signal line or unplug the signal line.PaymentShipping & HandlingReturns PolicyContact USFeedbackPaymentShipping will be arranged only your payment is cleared.We accept payment by PayPal only.Shipping & HandlingWe ship the same business day if paid by 4pm EST(1pm PDT).We don't ship to APO/FPO and Post Office box addresses, Alaska, Hawaii and Puerto Rico.No shipping on Weekend or Public Holidays & No responsibility for any customs duty.Returns PolicyWe offer a 60 day money back guarantee or exchange.Buyer pays return shipping and we pay replacement shipping.If you want to initiate a return,please contact us to get a returning address before sending the item back.Contact USWe hope that every transaction can have a happy ending. And if you have any more problems, please feel freeeee to contact us. we'll do what we can to help. FeedbackWe believe communication can result in a happier ending before you leave a red or gray feedback. And this account is my baby. I do care about it and will do what I can to protect it.