Does the Drop THX AAA 789 drive the AKG K712 Pro?
Computed from rated specifications · target SPL 110 dB · load 32 Ω
Verdict
AmpleThe Drop THX AAA 789 drives the AKG K712 Pro with ample headroom (~15.5 dB headroom at 32 ohms; needs ~51.1 mW, delivers 1800 mW).
Headroom
15.5 dB
15.5 dB
Required (110 dB SPL)
51.1 mW
51.1 mW
Delivered (@ 32 Ω)
1800 mW
1800 mW
Required voltage
1.78 Vrms
1.78 Vrms
AKG K712 Pro
Dynamic · over-ear
| Impedance | 62.0 Ω rated |
| Sensitivity | 92.92 dB/mW rated |
| Driver | Dynamic |
| Spec basis | Rated |
Rated: AKG official spec (62 Ω, 105 dB/V). RAA has no separate K712 Pro page.
· Source ↗
Drop THX AAA 789
Desktop Ss · Single Ended
| Output impedance manufacturer | 0.1 Ω |
| Power @ 16 Ω | 3000 mW |
| Power @ 32 Ω | 1800 mW |
| Power @ 300 Ω | 200 mW |
| Power @ 600 Ω | 100 mW |
| Power source | Manufacturer |
Drop product page SE figures: 3000/1800/200/100 mW at 16/32/300/600 Ω. THX AAA topology, output impedance <0.1 Ω (class spec).
· Source ↗
Where to buy
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Other amplifiers for the AKG K712 Pro
| Amplifier | Headroom |
|---|---|
| Schiit Lyr 3 | Ample 20.7 dB |
| JDS Labs Atom Amp 2 | Ample 17.2 dB |
| Schiit Magni Heretic | Ample 15.0 dB |
| FiiO K7 | Ample 13.8 dB |
| Little Dot MkII | Marginal 2.9 dB |
| Apple USB-C to 3.5mm | Insufficient -2.2 dB |
Other headphones the Drop THX AAA 789 can drive
| Headphone | Headroom |
|---|---|
| Koss Porta Pro | Ample 28.2 dB |
| Grado SR80x | Ample 27.9 dB |
| HiFiMan Arya | Ample 17.5 dB |
| AKG K702 | Ample 16.9 dB |
| Beyerdynamic DT 770 Pro 250 | Adequate 7.5 dB |
| Beyerdynamic DT 990 Pro | Adequate 6.4 dB |