Product Datasheet/Brochure

®
In-ear: Invented here.
Features
· Reference standard
· Metal bodies with anodized finish
· Detachable cables allow for easy replacement
and customization
In the Box
· ER4SR earphones
· Detachable, 5-foot cable
· Foam and 3-flange ear tips
· Filter removal tool and filters
· Deluxe storage case
· Performance certificate
Frequency Response 20 Hz – 16 kHz
Channel Matching Within 1 dB from 100 Hz – 10 kHz
Transducers High-performance,
balanced-armature micro-drivers
Noise Isolation 35 - 42 dB
Impedance 45 Ω
Sensitivity (@ 1 kHz) SPL at 0.2V 104 dB
Maximum Output (SPL) 122 dB
Cable Detachable, 5 ft
Warranty 2 years
CUSTOM•FIT Option ✓
User Replaceable Filters ✓
MSRP $349
Specifications
a classic redefined.
130
120
110
100
90
80
20 100 1000
Frequency (Hz)
dB (SPL)
10000
ER4SR
ER4SR Frequency Response