FiiO K7 BT Balanced Desktop & Headphone DAC/Amplifier

Democratized high-quality balanced amplification
Couldn't sound better
Using the same THX AAA 788+ amplifiers as 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.

Input switching with just one touch
One key controls switching between the 4 different inputs, with a flowing light effect to indicate when the input has switched and is ready. 

3 different outputs with just One touch
One touch of a handy key allows you to switch between 3 output modes (for use with headphones, with speakers, or use as a DAC).

Specifications
Hardware solution 
DAC: AK4493S*2 , USB: XMOS XUF208 , Volume IC：NJU72315 * 2, AMP：THX AAA 788+ * 2

Volume Scroll
Potentiometer+ADC Sampling

FiiO Control
K7 BT supported

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