Does the JDS Labs Atom Amp 2 drive the Beyerdynamic DT 770 Pro 250?
Computed from measured specifications · target SPL 110 dB · load 300 Ω
Verdict
AdequateThe JDS Labs Atom Amp 2 adequately drives the Beyerdynamic DT 770 Pro 250 with limited margin (~9.0 dB headroom at 300 ohms; needs ~35.9 mW, delivers 286 mW).
Headroom
9.0 dB
9.0 dB
Required (110 dB SPL)
35.9 mW
35.9 mW
Delivered (@ 300 Ω)
286 mW
286 mW
Required voltage
3.02 Vrms
3.02 Vrms
Beyerdynamic DT 770 Pro 250
Dynamic · over-ear
| Impedance (rated) | 250 Ω |
| Impedance (measured) Source: reference-audio-analyzer.pro/en/r… | 254.6 Ω measured |
| Sensitivity (rated) | 96.0 dB/mW |
| Sensitivity (measured) | 94.45 dB/mW measured |
| Driver | Dynamic |
| Spec basis | Measured |
Measured by Reference Audio Analyzer (https://reference-audio-analyzer.pro/en/report/hp/beyerdynamic-dt-770-pro-250.php)
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JDS Labs Atom Amp 2
Desktop Ss · Single Ended
| 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 |
JDS Labs product page: 2650/570/286/143 mW at 32/150/300/600 Ω per channel. All published — no derivations. Output impedance <0.1 Ω from manufacturer.
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Where to buy
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Other amplifiers for the Beyerdynamic DT 770 Pro 250
| Amplifier | Headroom |
|---|---|
| Schiit Lyr 3 | Ample 14.0 dB |
| Schiit Valhalla 2 | Ample 13.5 dB |
| Topping L30 | Adequate 8.9 dB |
| Topping A90 | Adequate 8.4 dB |
| iFi Zen DAC V2 | Marginal 0.0 dB |
| Apple USB-C to 3.5mm | Insufficient -10.4 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 |
| Audio-Technica ATH-R70x | Adequate 9.6 dB |
| Beyerdynamic DT 990 Pro | Adequate 7.9 dB |