Earphones
 
Description
  • World leader in reference response accuracy  
  • Custom-tuned, balanced-armature ACCU•Drivers™
  • In-ear monitor choice of musicians, monitor engineers and technicians
  • 4 products in series: ER•4B, ER•4S, ER•4P and ER•4PT
  • Best in class under $200
  • High-performance
    balanced-armature
    ACCU•Drivers™
  • 2 soft-touch colors: Black and Cobalt  
  • Best in class under $100
  • 8-mm neodymium moving coil drivers
  • ACCU•Chamber® Technology
  • Polished Black
    aluminum finish
  • Engineered for safe sound output and superior music reproduction
  • Designed for use in high-noise environments
  • Protects hearing from unsafe sound levels, even at max volume on portable players
  • Best in class under $50
  • 6-mm neodymium moving coil drivers
  • ACCU•Chamber® Technology
  • Micro-sized to fit small ears
  • Reduced sensitivity for safe sound output
  • Available in Black, Pink and Yellow
Best-in-class Noise Isolation
Best-in-class Fit and Style
Best-in-class Durability and Warranty
Best-in-class Sound Accuracy
Frequency Response
20 Hz-16 kHz
20 Hz-15 kHz
20 Hz-15 kHz
20 Hz-15 kHz
20 Hz-15 kHz
4B (92%) 4S (92%)
4P (86%) 4PT (86%)
85%
85%
85+%
85+%
Transducers
High performance,
custom-tuned
balanced armature
High-performance
balanced armature
High-output 8mm neodymium moving
coil driver
Reduced-output 6mm neodymium moving
coil driver
Reduced-output 6mm neodymium moving
coil driver
Noise Isolation
35-42 dB
35-42 dB
35-42 dB
35-42 dB
35-42 dB
Impedance (@1 kHz)
4B (100 Ohms) 4S (100 Ohms)
4P (27 Ohms) 4PT (27 Ohms)
16 Ohms
16 Ohms
300 Ohms
300 Ohms
Sensitivity (@1 kHz)
SPL at 0.1V
4B (90 dB) 4S (90 dB)
4P (102 dB) 4PT (102 dB)
105 dB
100 dB
76 dB
76 dB
Maximum Output (SPL)
122 dB
120 dB
120 dB
Cable
4 ft.
4 ft.
4 ft.
4 ft.
4 ft.
User Replaceable ACCU•Filters™
Warranty
2 years
2 years
2 years
1 years
1 years
CUSTOM•FIT Option
"et-im-oh-tik" true to the ear
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