Saturday, August 29, 2009

Full Size Can: Shure SRH-840 Professional Monitoring Headphones.

Designed for professional audio engineers and musicians, the SRH840 Professional Monitoring Headphones from Shure are optimized for studio recording and critical listening. A precisely tailored frequency response and 40mm neodymium dynamic drivers combine with total comfort and durability to provide the ultimate listening experience. The replaceable cable and included set of replacement ear pads ensure a long-lasting lifetime of use. Also includes threaded 1/4" (6.3mm) gold-plated adapter.

Features (Manufacturer's hype):

  • Precisely tailored frequency response delivers rich bass, clear mid-range and extended highs.
  • Wide, padded headband provides ergonomic fit for superior comfort over extended periods.
  • Closed-back, circumaural design rests comfortably over the ears and reduces background noise.
  • Collapsible design for easy storage and portability.
  • Legendary Shure quality to withstand the rigors of everyday use
  • Bayonet Clip securely locks cable into ear cup.
  • Replaceable ear cup pads included to ensure long product life.
  • 3m (10ft) coiled detachable cable provides plenty of length and easy storage and replacement.
  • Carrying bag protects headphones when on the go or not in use.


Transducer type
Dynamic neodymium magnet

Driver size
40 mm

Sensitivity (1kHz)
102 dB/mW

Impedance (1kHz)
44 Ω

Max. input power (1kHz)
1000 mW

Frequency range
5 Hz - 25 kHz

Net weight (without cable)
0.7 lb (317.5 g)

Shipping weight
1.75 lbs (794 g)

Length of cable
3 meters (9.84 ft)

Type of cable
Detachable coiled oxygen-free copper

Gold-plated 1/8" (3.5 mm) stereo mini jack

Un-boxing and first impressions:

The box is well designed and made and printed in English and Japanese, it appears that Shure have intentions to make an impact on the Japanese market with this product. The extra ear pads are a nice touch. The headphones come with the usual standard leatherite pouch, a detachable cable (nice touch) and the standard gold plated adapter plug. Although this is a shure product it is only designed in USA and the headphones are made in China.

The manual is multi-lingual and easy enough to understand. The build of the headphone has a solid feel and does not feel flimsy.

Listening has not been executed yet and this will be done later with my Opera Consonance Cyber-30 (2A3 tube) headphone amplifier connected to the Elekit CD player. But I have already been advised by the supplier that these headphones will require 150 hours of burn in before they reach their full potential.

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