Headphone amplifiers

Conductor material: copper

Connector (left): USB-C, 3.5mm jack female

Connector (right): USB-C, 3.5mm jack female

Connector (left): 3.5mm jack female, USB-C

Connector (right): 3.5mm jack female, USB-C

Brand: ddHiFi

Brand: Earmen

Headphone output: 4.4mm jack, 3.5mm jack

Output connectors: 3.5mm jack, 4.4mm jack

Brand: iFi

Headphone output: 4.4mm jack, 3.5mm jack

Output connectors: 4.4mm jack, 3.5mm jack

Circuit design: discrete

: 46

Headphone output: 6.35mm jack

Brand: Lake People

Power output: 1.2

The lowest frequency, Hz: 3

Braid material: fabric

Cable length, m: 0.9

Cable type: straight

Cable length, m: 0.1

Cable type: straight

Connector (left): 3.5mm jack female, Lightning

Brand: Cayin

Headphone output: 4.4mm jack, 3.5mm jack

Power output: 0.213, 0.138

Brand: Cayin

The lowest frequency, Hz: 20

The highest frequency, kHz: 20

Brand: Violectric

Power output: 6.4

The lowest frequency, Hz: 1

Conductor material: copper

Connector (left): USB-C, 4.4mm jack male

Connector (right): USB-C, 4.4mm jack male

Brand: Violectric

Power output: 5.5

The lowest frequency, Hz: 1

Brand: Violectric

Power output: 5

Sampling rate, kHz: 384

Brand: iFi

Headphone output: 4.4, 6.3

Output connectors: RCA, 4.4

Brand: Violectric

Power output: 3.5

The lowest frequency, Hz: 5

Cable length, m: 0.1

Connector (left): 3.5mm jack female, USB-C

Connector (right): 3.5mm jack female, USB-C

Brand: FiiO

Power output: 1.4

The lowest frequency, Hz: 20

Brand: Earmen

Headphone output: 3.5mm jack, 4.4mm jack

Power output: 0.280

Cable length, m: 0.1

Conductor material: copper

Connector (left): 3.5mm jack female, Lightning

Brand: Chord

Output connectors: USB Micro

Sampling rate, kHz: 768

Brand: Cayin

Power output: 1

The lowest frequency, Hz: 20

Brand: Cayin

Power output: 1

The lowest frequency, Hz: 20

Braid material: nylon

Cable length, m: 0.1

Cable type: straight

Brand: Sennheiser

Power output: 0.48

The lowest frequency, Hz: 10

Brand: Hidizs

Headphone output: 4.4, 3.5

Output connectors: 4.4, 3.5

Brand: ddHiFi

Headphone output: 4.4mm jack

Output connectors: 4.4mm jack

Brand: FiiO

Power output: 1.4

The lowest frequency, Hz: 20

Conductor material: copper

Connector (left): 3.5mm jack female, Lightning

Connector (right): 3.5mm jack female, Lightning

Conductor material: copper

Connector (left): Lightning, 4.4mm jack male

Connector (right): Lightning, 4.4mm jack male