Comparison headphone Amplifiers

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	FiiO QX13	Fosi Audio DS3	Mackie HM-4	Fender Mustang Micro Plus	Fosi Audio SK01	ART HeadAmp IV
	from $219.99 up to $239.99 Compare prices 3	from $99.99 up to $239.99 Compare prices 5	from $49.99 Compare prices 4	from $124.49 up to $166.98 Compare prices 7	from $71.99 up to $79.99 Compare prices 2	from $78.00 up to $99.99 Compare prices 5
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TOP sellers	Reverb.com $220.00 Buy in shop Newegg.com $240.00 Buy in shop Reverb.com $240.00 Buy in shop	Amazon.com $100.00 Buy in shop Fosiaudio.com $100.00 Buy in shop Fosiaudio.com $100.00 Buy in shop	Amazon.com $50.00 Buy in shop BestBuy.com $50.00 Buy in shop Reverb.com $50.00 Buy in shop	Amazon.com $124.00 Buy in shop electronicsExpo.com $130.00 Buy in shop BestBuy.com $140.00 Buy in shop	Amazon.com $72.00 Buy in shop Fosiaudio.com $80.00 Buy in shop	Amazon.com $78.00 Buy in shop Reverb.com $100.00 Buy in shop Amazon.com $100.00 Buy in shop
Type	portable	portable	portable	portable	portable	stationary
DAC	ESS ES9027SPRO	ESS ES9039Q2M
Number of channels			4 шт			4 шт
Specs
DAC sample rate	768 kHz	768 kHz
DAC bit depth	32 bit	32 bit
Headphone impedance	8 – 350 Ohm	16 – 300 Ohm	47 Ohm		16 – 300 Ohm
Power (300 Ohm)	125 mW
Power (32 Ohm)	900 mW	220 mW			2400 mW
Power (16 ohm)	480 mW			60 mW
Frequency range	20 – 90000 Hz				20 – 20000 Hz	20 – 20000 Hz
Signal to noise ratio	124 dB	122 dB			108 dB	90 dB
Coef. harmonic distortion	0.0006 %				0.001 %	0.01 %
Functions and features
Bluetooth				v5.0
IPhone/iPad connection
Gain Control
Bass control
Treble adjustment
Equalizer
Mobile app
Level adjustment	buttons	buttons	wheel	wheel	wheel	wheel
Connectors
Inputs	USB-C	USB-C	Jack (6.35 mm)	Jack (6.35 mm)	mini-Jack (3.5 mm)	mini-Jack (3.5 mm) Jack (6.35 mm)
Outputs					mini-Jack (3.5 mm)
Headphone outputs	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	4x Jack (6.35 mm) шт	1x mini-Jack (3.5 mm) шт	1x mini-Jack (3.5 mm) шт 1x Jack (6.35 mm) шт	3x mini-Jack (3.5 mm) шт 4x Jack (6.35 mm) шт
Power source
Power type	battery powered USB powered	USB powered	mains power	battery powered USB powered	battery powered USB powered	mains power
General
Screen
Metal body
Dimensions	64x31x13 mm	55x20x11 mm	109x58x51 mm	80x38x30 mm	121x51x43 mm	117x104x47 mm
Weight	34 g		200 g	54 g	290 g	610 g
Color
Added to E-Catalog	october 2025	march 2026	june 2019	january 2025	september 2025	november 2015