Does the FiiO K7 drive the Audio-Technica ATH-AD700X?

Computed from rated specifications · target SPL 110 dB · load 32 Ω

Ample

The FiiO K7 drives the Audio-Technica ATH-AD700X with ample headroom (~20.9 dB headroom at 32 ohms; needs ~10.0 mW, delivers 1220 mW).

Headroom
20.9 dB
Required (110 dB SPL)
10.0 mW
Delivered (@ 32 Ω)
1220 mW
Required voltage
0.62 Vrms

Power Headroom

Headroom: 20.9 dB 0 · target 20.9 dB below target marginal adequate ample -14 dB +10 +20 +36 dB

Scale shows dB headroom above the 10.0 mW required to reach 110 dB SPL. Amp delivers 1220 mW at 32 Ω (+20.9 dB above target).

Audio-Technica ATH-AD700X Dynamic · over-ear
Impedance 38.0 Ω rated
Sensitivity 100.0 dB/mW rated
Driver Dynamic
Spec basis Rated
Rated: Audio-Technica official spec (38 Ω, 100 dB/mW). RAA has no measurement page for this model. · Source ↗
FiiO K7 Dac Amp · Single Ended
Output impedance manufacturer 1.0 Ω
Power @ 32 Ω 1220 mW
Power @ 300 Ω 140 mW
Power @ 600 Ω 70 mW *est.
Power source Manufacturer
* Loads marked "est." are derived from the published voltage ceiling at a lower-impedance load (V = √(P·R) → P_higher = V²/R_higher). All derivations are upward only.
FiiO K7 SE headphone output from manufacturer spec page (fiio.com/k7_parameters): L+R ≥ 1220 mW+1220 mW @ 32 Ω, L+R ≥ 140 mW+140 mW @ 300 Ω (THD+N<1%). Output impedance <1 Ω @ 32 Ω from manufacturer. 600 Ω derived from 300 Ω. · Source ↗

Where to buy

FiiO K7 on Amazon ↗ Audio-Technica ATH-AD700X 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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