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Black over-ear headphones with thick headband, large round ear cups and long coiled cable

JVC

JVC HA-RX900 50mm Over-Ear Headphone Black 64Ω 106dB 11.48ft 3.5/6.3mm

SKU CH-AGY3-C8G1F MPN HA-RX900

Circumaural headphones with 50mm neodymium drivers, 7–26,000Hz response, 64Ω impedance, 106dB sensitivity and a 11.48ft cord with 3.5mm and 6.3mm plugs

  • TypeOver the Ear
  • ColorBlack
  • Driver Unit50mm
  • Frequency Response7Hz-26KHz
  • Input Impedance64 ohms
  • Sensitivity106dB/1mW
  • 50mm neodymium driver delivers wide 7Hz–26kHz frequency response
  • 106dB sensitivity produces loud, clear audio from low-power sources
  • 64Ω impedance suits both portable players and home amplifiers
  • 48ft pure-copper cord minimises signal loss over long runs
  • Circumaural pads with pressure-dispersion headband enable comfortable extended listening

Full-Size Circumaural Headphones

The JVC HA-RX900 is a full-size circumaural headphone designed for desktop listening. Its 50mm neodymium drivers deliver a 7Hz-26KHz frequency response and 106dB sensitivity. The 11.48ft pure copper cord terminates in a 3.5mm plug with an included 6.3mm adapter for flexible connectivity.

Home Listeners Seeking Comfort

These suit listeners who want comfortable, extended sessions at a desk thanks to the pressure-dispersion head pad and soft ear pads. They are not for commuters or portable use because the long, fixed cable and large over-ear design are impractical for mobile devices. Builders needing wireless freedom or active noise cancellation should look elsewhere.

64Ω Impedance

The 64Ω nominal impedance defines how much voltage the headphones need to reach adequate volume. It works well with dedicated headphone amplifiers, audio interfaces and hi-fi receivers. Direct connection to smartphones or laptops may result in lower maximum output than lower-impedance models.

Highlights

  • 50mm neodymium driver delivers wide 7Hz–26kHz frequency response
  • 106dB sensitivity produces loud, clear audio from low-power sources
  • 64Ω impedance suits both portable players and home amplifiers
  • 48ft pure-copper cord minimises signal loss over long runs
  • Circumaural pads with pressure-dispersion headband enable comfortable extended listening

Specifications

BrandJVC
ModelHA-RX900
TypeOver the Ear
ColorBlack
Driver Unit50mm
Frequency Response7Hz-26KHz
Input Impedance64 ohms
Sensitivity106dB/1mW
Connector3.5mm/ 6.3mm
Ear CouplingCircumaural
Cord Length11.48 feet
Weight12.35 oz.
FeaturesHigh-quality dynamic sound reproduction with 50mm Neodymium driver unit and two types of superior sound structure
Ring port structure provides high-quality dynamic sound
Acoustic lens structure reproduces natural sound through two pieces of specially-engineered acoustic lenses
Acoustic lenses (located in front of diaphragm) tune direct and indirect sound by subtly offsetting holes in each lenses
Wide head pad and soft ear pads for optimum comfort
11.48 ft. pure copper cord for minimization of transmission loss
6.3mm plug adapter included
Package ContentsAccessory: 0.25" plug adapter
Shipping weight1.36 kg
Package size343 × 281 × 250 mm

Questions about this item

Does the 3.5mm and 6.3mm connector limit the 106dB sensitivity in practice?

The 106dB/1mW sensitivity is an electrical measurement at the driver; the dual 3.5mm and 6.3mm plugs pass the signal without altering that figure.

What clearance does the 50mm driver and circumaural ear cup need to fit over the ear?

The 50mm neodymium driver sits inside a full-size circumaural cup that completely surrounds the ear; the wide head pad and soft ear pads distribute pressure for long sessions.

How is the 11.48-foot cord routed during setup, and what step is often missed?

Run the 11.48-foot pure copper cord from the left ear cup to your source; the 6.3mm adapter screws onto the 3.5mm plug — do not force it without aligning the threads.

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