Does the JDS Labs Atom Amp 2 drive the Sennheiser HD 660S?

Computed from measured specifications · target SPL 110 dB · load 150 Ω

Ample

The JDS Labs Atom Amp 2 drives the Sennheiser HD 660S with ample headroom (~21.0 dB headroom at 150 ohms; needs ~4.5 mW, delivers 570 mW).

Headroom
21.0 dB
Required (110 dB SPL)
4.5 mW
Delivered (@ 150 Ω)
570 mW
Required voltage
0.99 Vrms

Power Headroom

Headroom: 21.0 dB 0 · target 21.0 dB below target marginal adequate ample -14 dB +10 +20 +36 dB

Scale shows dB headroom above the 4.5 mW required to reach 110 dB SPL. Amp delivers 570 mW at 150 Ω (+21.0 dB above target).

Sennheiser HD 660S Dynamic · over-ear
Impedance (rated) 150 Ω
Impedance (measured) Source: reference-audio-analyzer.pro/en/r… 216.75 Ω measured
Sensitivity (rated) 104.0 dB/mW
Sensitivity (measured) 103.45 dB/mW measured
Driver Dynamic
Spec basis Measured
Measured by Reference Audio Analyzer (https://reference-audio-analyzer.pro/en/report/hp/sennheiser-hd-660s.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 660S 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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