Does the JDS Labs Atom Amp 2 drive the Sennheiser HD 650?

Computed from measured specifications · target SPL 110 dB · load 300 Ω

Ample

The JDS Labs Atom Amp 2 drives the Sennheiser HD 650 with ample headroom (~14.9 dB headroom at 300 ohms; needs ~9.2 mW, delivers 286 mW).

Headroom
14.9 dB
Required (110 dB SPL)
9.2 mW
Delivered (@ 300 Ω)
286 mW
Required voltage
1.78 Vrms

Power Headroom

Headroom: 14.9 dB 0 · target 14.9 dB below target marginal adequate ample -14 dB +10 +20 +36 dB

Scale shows dB headroom above the 9.2 mW required to reach 110 dB SPL. Amp delivers 286 mW at 300 Ω (+14.9 dB above target).

Sennheiser HD 650 Dynamic · over-ear
Impedance (rated) 300 Ω
Impedance (measured) Source: reference-audio-analyzer.pro/en/r… 344.9 Ω measured
Sensitivity (rated) 97.77 dB/mW
Sensitivity (measured) 100.35 dB/mW measured
Driver Dynamic
Spec basis Measured
Measured by Reference Audio Analyzer (https://reference-audio-analyzer.pro/en/report/hp/sennheiser-hd-650.php) · Source ↗
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. · Source ↗

Where to buy

JDS Labs Atom Amp 2 on Amazon ↗ Sennheiser HD 650 on Amazon ↗

Disclosure: links above are Amazon affiliate links. As an Amazon Associate this site earns from qualifying purchases — at no extra cost to you. Affiliate commissions do not influence verdicts; all analysis is computed independently from the data.

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