Special Holiday Schedule Shipping Notice:

Please note that our offices and shipping department will be closed Fri Apr 19 through Tue Apr 30. We will reopen Wed May 1.

Thank you for your patronage.

On Stage Stands WH4500 Pro Studio Headphones + On-Stage Stands HA4000 Pro Headphone Amplifier + Hosa 1/4 inch TRS Extension Cable – Ultimate Studio Accessory Bundle

SKU: OSHA4000K1 Categories: ,

Condition: New

Product Highlights:

  • Applications: Optimized for home and studio recording
  • Style: Closed
  • Driver Size: 40mm
  • Frequency Response: 15Hz – 28kHz
  • Impedance: 38 ohms
  • Sensitivity: 99 db SPL
  • Maximum Power: 1,600mW at 1kHZ
  • Cable Length: 10′

You pay $94.95

Out of stock

Email Me!

Kit Items:

  1. On-Stage HA4000 Pro Headphone Amplifier
  2. Hosa HPE-310 1/4 inch TRS to 1/4 inch TRS Headphone Extension Cable, 10 feet


The WH4500 Professional Studio Headphones are designed for both home use and studio recording. The closed-back design provides crystal clear, isolated sound. A 10′ wired AUX cable detaches for easy storage and transportation. The one-size-fits-all adjustable head strap provides a non-slip fit and the dense foam padded cups provide optimal comfort.

The HA4000 from On-Stage is a four-channel headphone amplifier, allowing up to four people to personally monitor an audio signal at the same time, all while individually setting their own volume levels. High quality sound is maintained even at full volume. With 20 dB of gain available per channel, the unit is suitable for use in playback or recording scenarios. Routing audio to the unit is accomplished via one 1/4″ stereo input jack, and from there, the signal is routed to channels, each one boasting its own volume up and 1/4″ headphone output jack.

Kit Includes:

• On Stage Stands WH4500 Pro Studio Headphones

• On-Stage Stands HA4000 Pro Headphone Amplifier

• Hosa 1/4 inch TRS  Headphone Extension Cable


All items in this KIT/Bundle listing On Stage Stands WH4500 Pro Studio Headphones On-Stage Stands HA4000 Pro Headphone Amplifier Hosa 1/4 inch TRS Extension Cable – Ultimate Studio Accessory Bundle:

On-Stage WH4500 Pro Studio Headphones

Designed for home or studio recording, On-Stage WH4500 headphones

offer unparalleled sonic clarity and features normally found only in more

expensive sets.

Complete with 10′ detachable cord, the closed-ear,

foam-padded WH4500 comfortably cancels ambient noise, while the

gold-plated 1/8″ plug (and included 1/4″ adapter) ensures maximum

signal integrity.

Collapsible and easily transported with the included

nylon travel bag, the WH45000 provides 15K-28K, full range frequency

response, 40mm driver 38 ohm impedance, 99 decibel SPL sensitivity

  • Applications: Optimized for home and studio recording
  • Style: Closed
  • Driver Size: 40mm
  • Frequency Response: 15Hz – 28kHz
  • Impedance: 38 ohms
  • Sensitivity: 99 db SPL
  • Maximum Power: 1,600mW at 1kHZ
  • Cable Length: 10′

In The Box:

  •  WH4500 Headphones
  • Carrying Bag
  • 10′ detachable AUX cable
  •  Gold-plated 1/4″ adapter

SKU#: OSWH4500


On-Stage HA4000 Pro Headphone Amplifier

With the HA4000 4-Channel Headphone Amplifier, up to four people can
listen to a recorded take at the same time, while being able to adjust
their own individual headphone volume. High quality sound is maintained
even at full volume.

The HA4000 is also great to use during playing or
recording, allowing listeners to hear the main mix.

In The Box:

  • On-Stage HA4000 Pro Headphone Amplifier
  • 12 to 18 VDC Power Supply
  • Limited 3-Year Warranty

SKU#: OSHA4000


Hosa HPE-310 1/4 inch TRS to 1/4 inch TRS Headphone Extension Cable, 10 feet

The Hosa Headphone Extension Cable adds extra length of cabling to your headphones. Whether you are in the studio or at home relaxing, the Hosa headphone extension cable gives you room to move without unplugging. Plus, it removes the strain on your cable that is attached to the headphones. Stereo 1/4-inch male to stereo 1/4-inch female connectors with straight cable design.

  • 1/4″ Phono to 1/4″ Phono Audio Cable
  • 10 ft (3.0m) Cable
  • Instrument Patch Cable for Audio
  • Extension Cable (M to F OR F to M)

In The Box:

SKU#: HSHPE310


What's In The Box

  1. On-Stage HA4000 Pro Headphone Amplifier
  2. Hosa HPE-310 1/4 inch TRS to 1/4 inch TRS Headphone Extension Cable, 10 feet


Features & Specs

Key Features & Specs:

  • Optimized for home and studio recording
  • Exceptional clarity and accurate sound reproduction
  • Dense foam padding for optimal comfort
  • Closed-ear,collapsible design.
  • 10′ Detachable cable

Key Features & Specs:

  • Max Output Level: 22dB
  • Signal to Noise Ratio: >98dB
  • Input Connector: 1/4″ TRS Stereo
  • Output Connector: 1/4″ TRS Stereo
  • Input Impedance: 1000KO (unbalanced)
  • Output Impedance: Minimum 10O each channel
  • Max Gain: 20dB per channel
  • Power Supply: 12-18v DC adapter (included)
  • UPC: 793585081167
    Notify Me - Join Waitlist We will inform you when the product arrives in stock. Just leave us your valid email address below.
    Email Quantity We won't share your address with anybody else.