Digital Trends

Etymotic ER-4P

• Frequency response re nominal: 20 Hz to 16 kHz +/- 4 dB; 50 Hz to10 kHz +/- 2 dB
• 1 kHz sensitivity: 109 dB SPL for .2 Volt Input; 107 dB SPL at 1mW
• Impedance: 27 Ohms nominal
• Maximum output: 122 dB SPL
• Maximum safe continuous input: .75 V RMS
• Acoustic polarity: + Electric = + Acoustic
• Weight: Less than 1 oz. (28 grams)
• Cord Supplied: 5 feet with 3.5mm (1/8 inch) stereo phone plug
• Transducer Type: Dynamic