eBay
The Sennheiser IE 40 PRO are in-ear monitoring headphones offering high output and broadband frequency reproduction for musicians, vocalists, and audio engineers in clubs, concert venues, and houses of worship. They feature 10mm dynamic drivers, which produce a 20 Hz to 18 kHz frequency response and a maximum SPL of 115 dB while maintaining phase coherency and low distortion.

The compact housings are designed to be light and comfortable. With up to 26 dB of passive noise attenuation, they keep extraneous sounds out and allow you to focus on the mix. Swappable foam and silicone eartips are included for achieving a secure, personalized fit. The detachable 4.3' headphone cable is terminated with a 3.5mm TRS connector to ensure compatibility with a variety of mobile devices, mixers, and headphone amplifiers. The IE 40 PRO in-ear monitoring headphones are supplied with a cleaning tool and a soft protective pouch.
 
Feature:
Innovative, dynamic 10mm broadband transducer for powerful, precise monitoring
Dynamic driver system reduces acoustic stress factors through homogenous, distortion-free reproduction
Secure fit and high level of wearing comfort; Innovative single driver design enables a slim and ergonomic construction
Excellent shielding thanks to optimized earpiece and flexible silicone and foam tips
Cable with innovative internal cable duct (patent pending), fit for stage use
 
Specification:
Impedance: 20 Ohms
Frequency response: 20 - 18,000 Hz
Sound pressure level (SPL): 115 dB (1kHz / 1 Vrms)
THD, total harmonic distortion: < 0.1 % (1kHz, 94dB)
Cable length: 1.3m (4.3 feet)
Connector: 3.5mm
Transducer principle: Dynamic
Weight: 18 g (0.6 oz)
Attenuation: 26 dB
Driver Size: 0.39" / 10 mm
Connector to Earpiece: 2 x MMCX
 
Included:
Sennheiser IE 40 PRO In-Ear Monitoring Headphones (Clear)
Silicone Eartips (Small, Medium, Large)
Foam Eartips (Medium)
Cleaning Tool
Soft Pouch
DataCaciques