Product comparison · 2 headphone amplifiers

InLine AmpEQ mobile, Tri-Tone Hi-Res AUDIO Pre- and Headphone-Amp vs InLine AmpUSB, Hi-Res AUDIO HiFi DSD USB Audio DAC, Vacuum Tube amplifier

13specifications compared
6differ
7identical
14known for one product only

Key differences

The InLine AmpUSB, Hi-Res AUDIO HiFi DSD USB Audio DAC, Vacuum Tube amplifier has 45 mm more width than the InLine AmpEQ mobile, Tri-Tone Hi-Res AUDIO Pre- and Headphone-Amp (81 mm vs 36 mm). The InLine AmpEQ mobile, Tri-Tone Hi-Res AUDIO Pre- and Headphone-Amp has 5 mm more depth than the InLine AmpUSB, Hi-Res AUDIO HiFi DSD USB Audio DAC, Vacuum Tube amplifier (115 mm vs 110 mm). The InLine AmpUSB, Hi-Res AUDIO HiFi DSD USB Audio DAC, Vacuum Tube amplifier has 22 mm more height than the InLine AmpEQ mobile, Tri-Tone Hi-Res AUDIO Pre- and Headphone-Amp (80 mm vs 58 mm).

Width
- AmpEQ mobile, Tri-Tone Hi-Res AUDIO Pre- and Headphone-Amp:36 mm
- AmpUSB, Hi-Res AUDIO HiFi DSD USB Audio DAC, Vacuum Tube amplifier:81 mm
Depth
- AmpEQ mobile, Tri-Tone Hi-Res AUDIO Pre- and Headphone-Amp:115 mm
- AmpUSB, Hi-Res AUDIO HiFi DSD USB Audio DAC, Vacuum Tube amplifier:110 mm
Height
- AmpEQ mobile, Tri-Tone Hi-Res AUDIO Pre- and Headphone-Amp:58 mm
- AmpUSB, Hi-Res AUDIO HiFi DSD USB Audio DAC, Vacuum Tube amplifier:80 mm
Weight
- AmpEQ mobile, Tri-Tone Hi-Res AUDIO Pre- and Headphone-Amp:250 g
- AmpUSB, Hi-Res AUDIO HiFi DSD USB Audio DAC, Vacuum Tube amplifier:285 g
Package height
- AmpEQ mobile, Tri-Tone Hi-Res AUDIO Pre- and Headphone-Amp:73 mm
- AmpUSB, Hi-Res AUDIO HiFi DSD USB Audio DAC, Vacuum Tube amplifier:72 mm
Package weight
- AmpEQ mobile, Tri-Tone Hi-Res AUDIO Pre- and Headphone-Amp:453 g
- AmpUSB, Hi-Res AUDIO HiFi DSD USB Audio DAC, Vacuum Tube amplifier:772 g

Side by side

Differences highlightedShow differences only

Comparison of 99204I, 99206I
27 specifications	A InLine AmpEQ mobile, Tri-Tone Hi-Res AUDIO Pre- and Headphone-Amp Model 99204I View product	B InLine AmpUSB, Hi-Res AUDIO HiFi DSD USB Audio DAC, Vacuum Tube amplifier Model 99206I View product
Audioidentical
Output impedanceKnown for one	16 - 600 Ω	Unknown — not stated by the source
GainKnown for one	-10 dB	Unknown — not stated by the source
Adjustable volume	Yes	Yes
Treble adjustmentKnown for one	Yes	Unknown — not stated by the source
Signal-to-Noise Ratio (SNR)Known for one	Unknown — not stated by the source	110 dB
Audio D/A Converter (DAC)Known for one	Unknown — not stated by the source	32-bit/384kHz
Ports & interfacesidentical
Headphone connectivity	3.5mm	3.5mm
Line-outKnown for one	Yes	Unknown — not stated by the source
Line-inKnown for one	Yes	Unknown — not stated by the source
S/PDIF out portKnown for one	Unknown — not stated by the source	Yes
Technical detailsidentical
Package volume	1800 cm³	1800 cm³
Product colour	Silver	Silver
Batteryidentical
Battery technologyKnown for one	Lithium Polymer (LiPo)	Unknown — not stated by the source
Battery capacityKnown for one	2200 mAh	Unknown — not stated by the source
Battery lifeKnown for one	6 h	Unknown — not stated by the source
Charging timeKnown for one	2 h	Unknown — not stated by the source
Poweridentical
Power source	USB	USB
Weight & dimensions6 differ
WidthDiffers	36 mm	81 mm
DepthDiffers	115 mm	110 mm
HeightDiffers	58 mm	80 mm
WeightDiffers	250 g	285 g
Package depth	172 mm	172 mm
Package heightDiffers	73 mm	72 mm
Package weightDiffers	453 g	772 g
Package width	142 mm	142 mm
Packaging contentidentical
Cables includedKnown for one	Micro-USB	Unknown — not stated by the source
System requirementsidentical
Mac operating systems supportedKnown for one	Unknown — not stated by the source	Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks, Mac OS X 11.0 Big Sur

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

More headphone amplifier comparisons

All headphone amplifier comparisons