Does the JDS Labs Atom Amp 2 drive the Fostex T50RP Mk3?
Computed from measured specifications · target SPL 110 dB · load 32 Ω
Verdict
AmpleThe JDS Labs Atom Amp 2 drives the Fostex T50RP Mk3 with ample headroom (~13.3 dB headroom at 32 ohms; needs ~123.0 mW, delivers 2650 mW).
13.3 dB
123.0 mW
2650 mW
2.57 Vrms
| Impedance (rated) | 50 Ω |
| Impedance (measured) Source: reference-audio-analyzer.pro/en/r… | 53.65 Ω measured |
| Sensitivity (rated) | 91.0 dB/mW |
| Sensitivity (measured) | 89.1 dB/mW measured |
| Driver | Planar |
| Spec basis | Measured |
| Output impedance manufacturer | 0.1 Ω |
| Power @ 32 Ω | 2650 mW |
| Power @ 150 Ω | 570 mW |
| Power @ 300 Ω | 286 mW |
| Power @ 600 Ω | 143 mW |
| Power source | Manufacturer |
Planar-magnetic headphones can have high current demands that are not fully captured by the power headroom model. Even with adequate headroom, some solid-state amps may struggle to deliver sufficient peak current for transient dynamics. Prefer amps rated for low-impedance planars.
Where to buy
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Other amplifiers for the Fostex T50RP Mk3
| Amplifier | Headroom |
|---|---|
| Schiit Lyr 3 | Ample 16.9 dB |
| Schiit Asgard 3 | Ample 13.1 dB |
| Schiit Magni Heretic | Ample 11.1 dB |
| FiiO K7 | Adequate 10.0 dB |
| Little Dot MkII | Insufficient -0.9 dB |
| Apple USB-C to 3.5mm | Insufficient -6.0 dB |
Other headphones the JDS Labs Atom Amp 2 can drive
| Headphone | Headroom |
|---|---|
| Koss Porta Pro | Ample 29.8 dB |
| Grado SR80x | Ample 29.5 dB |
| HiFiMan Arya | Ample 19.2 dB |
| AKG K702 | Ample 18.6 dB |
| Beyerdynamic DT 770 Pro 250 | Adequate 9.0 dB |
| Beyerdynamic DT 990 Pro | Adequate 7.9 dB |