Does the Topping DX3 Pro+ drive the AKG K702?

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

Ample

The Topping DX3 Pro+ drives the AKG K702 with ample headroom (~16.9 dB headroom at 32 ohms; needs ~36.7 mW, delivers 1800 mW).

Headroom
16.9 dB
Required (110 dB SPL)
36.7 mW
Delivered (@ 32 Ω)
1800 mW
Required voltage
1.55 Vrms

Power Headroom

Headroom: 16.9 dB 0 · target 16.9 dB below target marginal adequate ample -14 dB +10 +20 +36 dB

Scale shows dB headroom above the 36.7 mW required to reach 110 dB SPL. Amp delivers 1800 mW at 32 Ω (+16.9 dB above target).

AKG K702 Dynamic · over-ear
Impedance (rated) 62 Ω
Impedance (measured) Source: reference-audio-analyzer.pro/en/r… 65.2 Ω measured
Sensitivity (rated) 92.92 dB/mW
Sensitivity (measured) 94.35 dB/mW measured
Driver Dynamic
Spec basis Measured
Measured by Reference Audio Analyzer (https://reference-audio-analyzer.pro/en/report/hp/akg-k702.php) · Source ↗
Topping DX3 Pro+ Dac Amp · Single Ended
Output impedance manufacturer 0.1 Ω
Power @ 32 Ω 1800 mW
Power @ 300 Ω 250 mW
Power @ 600 Ω 125 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.
Topping DX3 Pro+ SE headphone output: 1800 mW @ 32 Ω, 250 mW @ 300 Ω (from Topping official spec). Output impedance <0.1 Ω. 600 Ω derived from 300 Ω. · Source ↗

Where to buy

Topping DX3 Pro+ on Amazon ↗ AKG K702 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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Schiit Magni Heretic Ample 16.4 dB
FiiO K7 Ample 15.2 dB
Little Dot MkII Adequate 4.3 dB
Apple USB-C to 3.5mm Insufficient -0.7 dB

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Koss Porta Pro Ample 28.2 dB
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