Reference Single-Dynamic-Driver IEM (Beryllium-Coated)
Specifications
| Category | Iem |
|---|---|
| Brand | Reference Audio |
| Driver type | Dynamic |
| Driver size | 10 mm |
| Driver count | 1 per side |
| Impedance | 16 Ω |
| Sensitivity | 108 dB/mW |
| Frequency response | 10 Hz – 40 kHz |
| THD | 0.2 % |
| Cable termination | detachable |
| Recommended amp power | 10 mW |
| Tuning target | Harman in-ear 2019 |
| Weight | 8.5 g |
| Price (USD) | $499 |
| Release year | 2024 |
Overview
Single 10 mm beryllium-coated dynamic-driver IEM tuned to the Harman 2019 in-ear target. The beryllium coating on the PEEK diaphragm raises the breakup mode well above 30 kHz, giving the driver flat response across the audible band without the multi-driver crossover artifacts that plague balanced-armature designs.
Detachable cable via 0.78 mm 2-pin sockets (the dominant IEM standard). 16 Ω impedance with 108 dB/mW sensitivity makes it efficient enough for the smallest USB-C dongle DAC; the reference portable DAP drives it with massive headroom.
For an upgrade cable see the OCC copper IEM cable; for tip rolling start with universal silicone tips and explore from there. Driver topology context: IEM driver types explained.
Earpiece / cable connector
0.78 mm 2-Pin — Universal IEM Connector
0.78mm · 2-pole 2-pin
Recommended source devices
Mid-Tier Compact Balanced DAP (ES9219C)
240mW @ 32Ω · Dap
USB-C Dongle DAC with Dual CS43131 and Balanced Out
210mW @ 32Ω · Portable Dac
Reference Portable Digital Audio Player (Dual ES9038Q2M)
650mW @ 32Ω · Dap