Headphone amplifiers

Cable length, m: 0.1

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

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

Brand: Cayin

The lowest frequency, Hz: 10

The highest frequency, kHz: 80

Brand: Cayin

The lowest frequency, Hz: 10

The highest frequency, kHz: 80

Conductor material: copper

Connector (left): Lightning, 4.4mm jack male

Connector (right): Lightning, 4.4mm jack male

Brand: Hidizs

Headphone output: 3.5

Output connectors: 3.5

Conductor material: copper

Connector (left): 3.5mm jack female, Lightning

Connector (right): 3.5mm jack female, Lightning

Brand: Violectric

Power output: 2.8

The lowest frequency, Hz: 5

Brand: Lake People

Power output: 1.2

The lowest frequency, Hz: 3

Brand: iFi

Headphone output: 4.4, 6.3

Output connectors: RCA, 4.4

Cable type: straight

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

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

Brand: Hidizs

Headphone output: 2.5, 3.5

Output connectors: usb-C

Brand: iFi

Power output: 1.6

The lowest frequency, Hz: 1

Brand: Stax

The highest frequency, kHz: 100

Output connectors: RCA, 5-pin

Brand: Stax

The highest frequency, kHz: 90

Signal-to-noise ratio, dB: 60

Brand: ddHiFi

Headphone output: 4.4mm jack

Output connectors: 4.4mm jack

Brand: Naim

Power output: 1.5

The lowest frequency, Hz: 20

Brand: Shanling

Headphone output: 3.5mm jack, 4.4mm jack

Output connectors: Coaxial

Cable length, m: 0.18

Conductor material: copper

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

Brand: Warwick Acoustics

The lowest frequency, Hz: 10

The highest frequency, kHz: 60

Brand: Chord

Headphone output: 3.5mm jack

Power output: 0.6

Brand: Warwick Acoustics

The lowest frequency, Hz: 10

The highest frequency, kHz: 60

Conductor material: copper

Connector (left): 3.5mm jack female, Lightning

Connector (right): 3.5mm jack female, Lightning

Brand: iFi

Powered by USB: yes

The lowest frequency, Hz: 20

Brand: Hidizs

Headphone output: 2.5mm jack, 3.5mm jack

Output connectors: 2.5mm jack, 3.5mm jack

Circuit design: discrete

Form factor: portable

Power output: 3.8

Conductor material: copper

Connector (left): Lightning, 4.4mm jack female

Connector (right): Lightning, 4.4mm jack female

Brand: Cayin

Power output: 0.75

The lowest frequency, Hz: 10

Brand: Cayin

Headphone output: 4.4mm jack, 3.5mm jack

Output connectors: 4.4mm jack, 3.5mm jack

Brand: Niimbus

Power output: 7

The highest frequency, kHz: 200

Brand: Chord

Headphone output: 6.35mm jack, 3.5mm jack

Output connectors: RCA, 6.35mm jack, 3.5mm jack