The 64 Audio A12t ranks #221 out of 297 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: 64 Audio
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#221 64 Audio A12t: $1,999.00 64 Audio eBay
Pros: Bass is on target down to 20 Hz with a slight 1.9 dB lift from 60 to 200 Hz, so low end feels full and solid without boom. That warm balance suits listeners who prefer a relaxed, bass rich sound for long sessions. At 12.6 ohms and 108 dB/mW it runs easily from a phone.
Cons: In the two hobbyist measurements on squig.link, treble from 6 to 10 kHz sits about 10 dB below target with a 13.7 dB dip near 8.7 kHz, and presence is 7.3 dB low, so cymbals, strings and vocal clarity sound noticeably dark and muffled. The qdc Anole V6 earns the same rating for considerably less.
| Released | Mar 2018 (8 years ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 2.50 dB standard deviation |
| Driver Type | Balanced armature |
| Drivers | 12 x balanced armature (incl. 1 tia high driver) |
| Form Factor | In-ear |
| Frequency Response | 10Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 65 (measured by crinacle, via AutoEQ) |
| Impedance | 12.6 ohms |
| Sensitivity | 108 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.2 dB at 30 Hz) |
| Tonal Tilt | -0.87 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -4.8 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -0.9 dB | 0.70 |
| Peak | 206 Hz | -2.2 dB | 0.47 |
| Peak | 9,038 Hz | +5.2 dB | 1.59 |
| Peak | 3,244 Hz | +5.1 dB | 2.01 |
| Peak | 2,134 Hz | -2.6 dB | 2.47 |
| High shelf | 10,000 Hz | -6.1 dB | 0.70 |
| Peak | 5,789 Hz | +2.4 dB | 5.93 |
| Peak | 599 Hz | -0.7 dB | 2.55 |
| Peak | 951 Hz | +0.8 dB | 3.06 |
| Peak | 5,061 Hz | -1.6 dB | 6.00 |
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