AudioChainsDB
Truthear

PURE

headphones

$90

Used market: $70*

Manufacturer datasheet

Specifications

3 of 6 values have a recorded source
Connector
0.78 mm 2-pin, 3.5 mm plug·
Form Factor
In-Ear·
Impedance ohms
13.8✓
Transducer Type
Dynamic·
Detachable Cable
yes·
Sensitivity dB V
124✓

Expert Audio Engineering Commentary

Tonal Profile

1DD + 3BA with a WBFK-style armature on top. 124 dB/Vrms is the highest figure in this batch: one volt would put well over the pain threshold into your ear canal, which is another way of saying you will never use more than a few tens of millivolts.

Amplification Warning

At 124 dB/V, a source noise floor of 3 µV sits at about 14 dB SPL in the ear — audible in a quiet room. This is the case where a «better» desktop amplifier is usually a worse choice than a clean dongle.

* Estimated with the depreciation fallback (~78% retained value). · checked on 8/5/2026