THX AAA 788+ Amplifiers Technology, Using the same THX AAA 788+ amplifiers as the K9 Pro, the K7 is capable of outputting 560mW into a 300Ω load at 1%
FiiO K7 Hi-Res Balanced/Phono Desktop DAC and Amplifier 6953175710363
Fiio K7 review-FIIO---BORN FOR MUSIC
fiio-k7-bt-eight - Headfonia Reviews
The most competitive and cost-effective desktop balanced Bluetooth DAC/Amp within the 300-USD range. Adopts the six-stage audio circuit as in FiiOs high-end devices, and features 2 AMKs latest AK4493SEQ DACs and dual THX AAA 788+ amps. Supports multiple outputs- 4.4mm balanced out, 6.35/3.5mm single-ended out, as well as multiple inputs- USB, optical, coaxial, and AUX in.
FiiO K7 Desktop USB DAC and Headphone Amplifier Red Volume Control, 32 Bit/384KHz, Coaxial SPDIF Optical, 1/4 4.4 mm RCA K7RED
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fiio-k7-bt-nine - Headfonia Reviews
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FiiO K7-FIIO---BORN FOR MUSIC
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FiiO K7 BT Desktop DAC and Amplifier - DAC, Bluetooth, Preamp and Headphone Amplifier