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Catalog   /   Sound & Hi-Fi   /   Portable Audio   /   Headphone Amplifiers

Comparison headphone Amplifiers

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FiiO K7
FiiO KA13
FiiO BTR13
FiiO BTR7
FiiO KA17
Sennheiser GSX 300
FiiO K7FiiO KA13FiiO BTR13FiiO BTR7FiiO KA17Sennheiser GSX 300
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Typestationaryportableportableportableportablestationary
DACAK4493SCS43131ESS ESS9219 (2 pcs.)ESS ES9069Q (2 pcs)
Number of channels2 шт1 шт
Specs
DAC sample rate384 kHz384 kHz96 kHz384 kHz768 kHz96 kHz
DAC bit depth32 bit32 bit24 bit32 bit32 bit24 bit
Headphone impedance16 – 300 Ohm16 – 150 Ohm16 – 150 Ohm25 – 75 Ohm
Power580 mW650 mW
Power (300 Ohm)280 mW55 mW
Power (32 Ohm)2440 mW220 mW320 mW
Power (16 ohm)130 mW
Frequency range20 – 20000 Hz20 – 50000 Hz20 – 40000 Hz20 – 50000 Hz
Signal to noise ratio120 dB122 dB128 dB115 dB126 dB
Coef. harmonic distortion0.0003 %0.0005 %0.0018 %0.00048 %0.01 %
Functions and features
Bluetoothv5.0v5.0
Codec support
 
 
 
 
 
 
aptX Low Latency
AAC
LDAC
aptX Low Latency
AAC
LDAC
 
 
 
 
 
 
IPhone/iPad connection
Gain Control
Level adjustmentwheelbuttonsbuttonsbuttonsbuttonswheel
Connectors
Inputs
 
RCA
coaxial S/P-DIF
optical
USB (Type B)
 
 
 
 
 
 
 
 
 
 
 
 
USB C
 
 
 
 
 
USB C
 
 
 
 
 
USB C
mini-Jack (3.5 mm)
 
 
 
 
 
Outputs
RCA
 
 
 
 
 
Headphone outputs
 
1x Jack (6.35 mm) шт
1x Pentaconn (4.4 mm) шт
1x mini-Jack (3.5 mm) шт
 
1x Pentaconn (4.4 mm) шт
1x mini-Jack (3.5 mm) шт
 
1x Pentaconn (4.4 mm) шт
1x mini-Jack (3.5 mm) шт
 
1x Pentaconn (4.4 mm) шт
1x mini-Jack (3.5 mm) шт
 
1x Pentaconn (4.4 mm) шт
1x mini-Jack (3.5 mm) шт
 
 
Power source
Power type
 
 
mains power
 
USB powered
 
battery powered
USB powered
 
battery powered
USB powered
 
 
USB powered
 
 
USB powered
 
General
Screen
Metal body
Dimensions56x22x10 mm63x30x19 mm83x39x14 mm28x13x64 mm168x144x57 mm
Weight610 g19 g28 g68 g33 g309 g
Color
Added to E-Catalogdecember 2022july 2024october 2024august 2024july 2024july 2021

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