Does the FiiO K7 drive the Meze 99 Classics?
Computed from rated specifications · target SPL 110 dB · load 32 Ω
Verdict
AmpleThe FiiO K7 drives the Meze 99 Classics with ample headroom (~23.9 dB headroom at 32 ohms; needs ~5.0 mW, delivers 1220 mW).
Headroom
23.9 dB
23.9 dB
Required (110 dB SPL)
5.0 mW
5.0 mW
Delivered (@ 32 Ω)
1220 mW
1220 mW
Required voltage
0.40 Vrms
0.40 Vrms
Meze 99 Classics
Dynamic · over-ear
| Impedance | 32.0 Ω rated |
| Sensitivity | 103.0 dB/mW rated |
| Driver | Dynamic |
| Spec basis | Rated |
Rated: Meze official spec (32 Ω, 103 dB/mW). RAA has no measurement page.
· 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
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Other amplifiers for the Meze 99 Classics
| Amplifier | Headroom |
|---|---|
| Schiit Lyr 3 | Ample 30.8 dB |
| Schiit Asgard 3 | Ample 28.4 dB |
| Drop THX AAA 789 | Ample 25.6 dB |
| Topping DX3 Pro+ | Ample 25.6 dB |
| Little Dot MkII | Ample 13.0 dB |
| Apple USB-C to 3.5mm | Adequate 7.9 dB |
Other headphones the FiiO K7 can drive
| Headphone | Headroom |
|---|---|
| Koss Porta Pro | Ample 26.5 dB |
| Grado SR80x | Ample 26.2 dB |
| AKG K702 | Ample 15.2 dB |
| Sennheiser HD 660S | Ample 14.9 dB |
| Beyerdynamic DT 770 Pro 250 | Adequate 5.9 dB |
| Beyerdynamic DT 990 Pro | Adequate 4.8 dB |