Earphone Comparison

Earphones ER•4™ MicroPro hf5™ mc5™ mk5™ HD•Safety™ ETY•Kids 5®
  er4 hf5 mc5 mk5 hd5 ek5
Description
ACCU-Technology®
  • World leader in reference response accuracy  
  • Custom-tuned,
    balanced-armature
    drivers
  • In-ear monitoring
  • 3 products in series: ER•4B, ER•4S, ER•4PT
  • High-performance
    balanced-armature
    drivers
  • Soft-touch finish
  • Black and Cobalt
  • 8-mm neodymium
    moving coil drivers
  • ACCU•Chamber® Technology
  • Polished aluminum finish
  • 6-mm neodymium moving coil drivers
  • ACCU•Chamber® Technology
  • High gloss finish
  • Safe sound output 
  • Superior music reproduction
  • For use in high-noise environments
  • Protects hearing from unsafe sound levels, even at max volume on portable players
  • 6-mm neodymium moving coil drivers
  • Micro-sized to fit 
    small ears
  • Reduced sensitivity for safe sound output
  • Black, Pink, Yellow
Frequency Response 20 Hz-16 kHz 20 Hz-15 kHz 20 Hz-15 kHz 20 Hz-15 kHz 20 Hz-15 kHz 20 Hz-15 kHz
Accuracy Score 4B (92%) 4S (92%)
4PT (86%)
85% 85% 85% 85+% 85+%
Transducers High performance,
custom-tuned
balanced armature driver
High-performance
balanced armature driver
High-output
8-mm neodymium
moving coil driver
High-output
6-mm neodymium
moving coil driver
Reduced-output
6-mm neodymium
moving coil driver
Reduced-output
6-mm neodymium
moving coil driver
Noise Isolation 35-42 dB 35-42 dB 35-42 dB 35-42 dB 35-42 dB 35-42 dB
Impedance (@1 kHz) 4B (100 Ohms)
4S (100 Ohms)
4PT (27 Ohms)
16 Ohms 16 Ohms 32 Ohms 300 Ohms 300 Ohms
Sensitivity (@1 kHz)
SPL at 0.1V
4B (90 dB) 4S (90 dB)
4PT (102 dB)
105 dB 100 dB 95 dB 76 dB 76 dB
Maximum Output (SPL) 122 dB 120 dB 120 dB 120 dB
Cable 4 ft. 4 ft. 4 ft. 4 ft. 4 ft. 4 ft.
User Replaceable ACCU•Filters™
Warranty 2 years 2 years 2 years 1 year 1 year 1 year
CUSTOM•FIT Option
Price $299.00
ER•4 Information
$129.00
hf5 Information
$59.00
mc5 Information
$59.00
mk5 Information
$59.00
HD•Safety™ Information
$39.00
ETY•Kids 5 Information

Consumer Brochure 2013Download the In-ear Headsets and Earphones Brochure