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Description
FiiO K7 BT Bluetooth Desktop DAC & AMPFeatures Truly balanced headphone amp THX AAA 788+ amp technology Dual AK4493S DACs Multiple intelligent protection systems Power supply with numerous independent LDOs Included 12V 24W low noise switching power supply RGB status indicators 3 output modes Two levels of hardware gain Numerous outputs and inputs Truly balanced decoding and amplification The K7 has a six stage audio circuit with truly balanced analog and digital sections which helps to
Features
- Truly balanced headphone amp
- THX AAA 788+ amp technology
- Dual AK4493S DACs
- Multiple intelligent protection systems
- Power supply with numerous independent LDOs
- Included 12V/24W low-noise switching power supply
- RGB status indicators
- 3 output modes
- Two levels of hardware gain
- Numerous outputs and inputs
Truly balanced decoding and amplification
The K7 has a six-stage audio circuit with truly balanced analog and digital sections – which helps to reduce crosstalk and reproduce music to a great extent, allowing you to better enjoy the purity of your music.
Democratized high-quality balanced amplification couldn’t sound better
Using the same THX AAA 788+ amplifiers as the K9 Pro, the K7 is capable of outputting 560mW into a 300Ω load at 1% distortion, and 2000mW into a 32Ω load at 1% distortion. This ensures both low and high impedance headphones are powered with aplomb, and most importantly lets you experience musicality that’s sure to tug at your heartstrings.
Dual AK4493SEQ rich and delicate overall sound
The left and right channels are each equipped with an efficient high-performance AK4493SEQ. With this DAC’s pleasant timbre, its rich and delicate overall sound will let you rediscover your music all over again.
Robust decoding capabilities take a trip around the music world
The XMOS XUF208 decoder chip uses dual clock management to handle various music formats with ease, allowing you to easily listen to many audio formats.
RGB indicator lights for a colorful entrance
The RGB indicator lights are capable of displaying single colors as well as mixed colors, with a unique light flow effect during power-on/off or input switching. Dazzling and vivid light effects give your desk some much needed spice.
Specifications
| Name / Model No. | K7 | Hardware solution | DAC: AK4493S*2 , USB: XMOS XUF208 , Voume IC：NJU72315 * 2, AMP：THX AAA 788+ * 2 |
| Color | Black | Volume Scroll | Potentiometer+ADC Sampling |
| Weight | ≈610g | FiiO Control | Unsupported |
| Gain | L/H | Firmware upgrade | XMOS can be upgraded via USB |
| Maximum supported sampling rate |
PCM 384kHz-32bit/DSD256（USB DAC） PCM 192kHz-24bit（COAX） PCM 96KHz-24bit（OPT） |
Sampling rate indication | Blue：44.1KHz/48KHz Yellow：88.2/96/176.4/192/352.8/384KHz Green：DSD64/128/256 |
| Recommended headphone impedance | 16~300Ω | ||
| Buttons and interfaces | |||
| Buttons | input button*1+gain switch*1+output switch*1 | USB | USB B（data） |
| LINE IN | RCA sockets | LINE OUT | RCA sockets |
| OPT IN | TOSLINK | COAX IN | RCA sockets |
| BAL PO | Standard 4.4mm port | SE PO | Standard 6.35 mm port |
| Power parameters | |||
| Power supply | DC 12V/2A | Battery capacity | / |
| Audio parameters | |||
| Line output performance parameters | |||
| Frequency response | 20Hz~20KHz：±＜0.4dB（UAC) | Crosstalk | ≥102dB (1kHz/10kΩ) |
| 20Hz~20kHz：±＜0.8dB(SPDIF IN ) | Noise floor | ＜3μV（dbA） | |
| 20Hz~50KHz：±＜2.2dB（UAC) | SNR | ≥116dB (dbA，UAC) | |
| 20Hz~50kHz：±＜1.7dB(SPDIF IN ) | |||
| THD+N | ＜0.0005%(1kHz/10kΩ/dbA) | Output level | ≥2Vrms |
| Headphone output performance parameters（6.35mm） | |||
| Output power1 | L+R≥1220mW+1220mW（32Ω /THD+N＜1%) | Output impedance | ＜1Ω（32Ω） |
| Crosstalk | ≥77dB (1 kHz/32Ω) | ||
| Output power2 | L+R≥140mW+140mW（300Ω / THD+N＜1%) | Noise floor | ＜3.1μV（dbA，AUX IN) |
| Frequency response | 20Hz~20KHz：±＜0.3dB（UAC) | ＜4.4μV（dbA，UAC） | |
| 20Hz~20kHz：±＜0.7dB(SPDIF IN ) | |||
| 20Hz~50KHz：±＜2.1dB（UAC) | SNR | ≥128dB (dbA，AUX IN） ≥120dB (dbA，UAC） |
|
| 20Hz~50kHz：±＜1.6dB(SPDIF IN ) | |||
| THD+N | ＜0.0003% (1 kHz/32Ω/dbA) | Peak output voltage | ≥18.9Vpp |
| Balanced headphone output performance parameters（4.4mm） | |||
| Output power2 | L+R≥2000mW+2000mW（32Ω /THD+N＜1%) | Output impedance | ＜1Ω（32Ω） |
| Crosstalk | ≥124dB(1 kHz/32Ω) | ||
| Output power3 | L+R≥560mW+560mW（300Ω / THD+N＜1%) | Noise floor | ＜5.1μV（dbA，AUX IN) |
| Frequency response | 20Hz~20KHz：±＜0.3dB（UAC) | ＜7.7μV（dbA，UAC） | |
| 20Hz~20kHz：±＜0.7dB(SPDIF IN ) | |||
| 20Hz~50KHz：±＜2.1dB（UAC) | SNR | ≥128dB (dbA，AUX IN） ≥120dB (dbA，UAC） |
|
| 20Hz~50kHz：±＜1.6dB(SPDIF IN ) | |||
| THD+N | ＜0.0003% (1 kHz/32Ω/dbA) | Peak output voltage | ≥37.7Vpp |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
Who Says Pregnancy Pillows Are Just for Pregnancy?
Size: 57 Inch, Color: Light Grey, Size: 57 Inch, Color: Light Grey
I bought this pregnancy pillow even though I’m not pregnant, and I have zero regrets!
This thing is incredibly comfortable and provides support in all the right places. Whether I’m sleeping, reading, listening to an audiobook, or just relaxing in bed, it helps me get comfortable and stay comfortable.
I love being able to hug one side while supporting my back with the other. It feels like being surrounded by pillows without having to constantly rearrange them throughout the night.
The only downside is that it takes up a decent amount of bed space, but honestly, that’s a sacrifice I’m willing to make. My family may disagree. 😆
If you’re considering this pillow but aren’t pregnant, don’t let the name stop you. Comfort is for everyone!
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Reviewed in the United States on June 5, 2026
★★★★★ 5
Pretty, but very practical.
Size: Full, Color: Mint Green
The color was exactly what I expected from the photo. It arrived in an unbelievably small package, but expanded quickly once I opened the bag. I waited the recommended 24 hours to be sure it was done. I am pleased that the length is a perfect fit, and I like that it comes up to the back of my neck when I'm sitting in bed. It is a bit softer than I originally imagined, but not so soft that I feel like I'm sinking through it. It's very pleasantly supportive. The fabric is like a soft ribbed corduroy with piping along the outer seam. It looks nice. Both ends have a pocket that is barely noticeable, but is the perfect size to keep your phone close by. I'm temporarily homebound and spending a lot of time sitting in bed, so I'm very glad I invested in this pillow for comfort and convenience. If you ever have trouble with pillows working their way under the edge of the headboard, and into the dusty space between the headboard and the wall, consider this problem solved.
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Reviewed in the United States on January 23, 2026
★★★★★ 5
Measure your bed and space, I did and ordered the perfect fit!
Size: Queen, Color: Navy
Love this wedge pillow. I bought it for our boat stateroom bed. It fits perfectly as beds on a boat are always odd sizes. It is very comfortable allows me to sit up in bed to read. Also keeps our bed pillows from sliding back. Good quality, color and size.
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Reviewed in the United States on May 12, 2026
★★★★★ 4
Comfy, Supportive, and Great for Lounging in Bed
This wedge-style headboard pillow has made sitting up in bed much more comfortable. The shape offers full upper-back support, with just the right amount of firmness to keep you propped upright without feeling stiff. It’s especially helpful for reading or watching shows in bed, and it stays in place well against a flat headboard.
The purple color is rich and vibrant in person, and the removable cover is soft to the touch with a smooth finish. We really appreciated that the cover zips off easily and can be machine washed—it held its shape and color after laundering. The pillow also has a nice weight to it, so it doesn’t feel flimsy or slide down easily.
This is a great addition for anyone who likes spending time sitting up in bed, whether for reading, working, or relaxing. It also doubles nicely as a decorative accent when the bed is made. The quality feels solid, and the size works well across the width of a queen bed without overwhelming the space. Id say it is ok for the price. It does retain warmth though
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Reviewed in the United States on August 1, 2025
★★★★★ 5
Thick, Supportive, and Cozy for Reading or Nursing
Size: Full, Color: Olive Green
This wedge pillow has been a great fit on my daughter’s bed. It’s super soft and cozy, and at the same time offers great support for sitting up in bed. The pillow is nice and thick, so you don’t sink into it — perfect for reading, studying, or lounging without needing multiple regular pillows.
I tried it out myself and was surprised at how well it also works as support while nursing an infant. It props you up at just the right angle and feels stable without shifting around.
The removable, washable cover is a big plus, and the olive green color is subtle yet stylish. I’m impressed enough that I’ll either be purchasing one for myself soon or adding it to my Christmas list.
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Reviewed in the United States on September 22, 2025