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Impedance 21 Ω
Efficiency 115.0 dB SPL/mW
Ear Coupling In-ear
Target SPL Requirements
Target Power Voltage
90.0 dB 0.0 mW 0.01 Vrms
92.5 dB 0.01 mW 0.01 Vrms
95.0 dB 0.01 mW 0.01 Vrms
97.5 dB 0.02 mW 0.02 Vrms
100.0 dB 0.03 mW 0.03 Vrms
102.5 dB 0.06 mW 0.03 Vrms
105.0 dB 0.1 mW 0.05 Vrms
107.5 dB 0.18 mW 0.06 Vrms
110.0 dB 0.32 mW 0.08 Vrms
Price History
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Other headphones by Ultimate Ears


Popular amps for Ultimate Ears 18 Pro

Model Peak SPL Portable Price
FiiO E5 FiiO E5 135.6 dB $20.00
FiiO E10K FiiO E10K 127.8 dB $71.30
Electric Avenues PA2V2 Electric Avenues PA2V2 127.8 dB $70.00
FiiO K1 FiiO K1 120.2 dB $39.99
FiiO E11K / A3 FiiO E11K / A3 140.4 dB $59.99
FiiO E11 FiiO E11 134.6 dB $179.99
Schiit Magni Schiit Magni 135.6 dB $12.99