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Koss PRO4S + Sonic Electronix Bonus Pack 3

Wired Full Size Over-Ear Studio Headphones w/ Detachable Cable + Extended Warranty & Exchange Policy + 15% off Headphone Amp/DAC Coupon

Here's What You Get with the Bonus Pack 3:

  • Koss PRO4S Headphones
  • 3-year Sonic Electronix Warranty (Headphones Only)
  • Extended 180 Day Exchange Policy (Some Exclusions Apply)
  • 15% off Headphone Amp/DAC or Accessory Coupon: Use Code HPEXPERT1

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    This item has been discontinued

    Item Added to Cart

    Koss PRO4S + Sonic Electronix Bonus Pack 3

    Wired Full Size Over-Ear Studio Headphones w/ Detachable Cable + Extended Warranty & Exchange Policy + 15% off Headphone Amp/DAC Coupon

    $109.00

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    Sonic Electronix Bonus Pack 3

    Each Sonic Electronix Bonus Pack 3 is intended to help you get the most from your new headphones. The package for the Koss PRO4S Headphones gives you additional peace of mind thanks to the 3-year Sonic Electronix extended warranty. We're also giving you an extended 180 day exchange policy just in case you don't absolutely love this player. To top it off, you can use the exclusive 15% off coupon on a select headphone amplifier/DAC or headphone accessory of your choice!



    Koss PRO4S

    Wired Full Size Over-Ear Studio Headphones w/ Detachable Cable
    Quantity: 1

    General Features:

    • Wired Over-Ear Studio Headphones
    • Tuned for studio reference
    • D-profile with memory foam cushions
    • Detachable cable with dual choice entry
    • Adjustable headband for comfortable listening sessions
    • Primary Color: Black
    • Accent Colors: Silver
    • Authorized Internet Dealer
    • 1-year Manufacturer's Warranty

    Product Specifications:

    • Frequency Response: 10-25,000 Hz
    • Sensitivity: 99dB
    • Nominal Impedance: 35 Ohms
    • Cable:
      • Detachable: Yes
      • Cord Length: 4.5 ft. (1.4m)
    • Plug Size: 3.5mm
    • Includes 1/4" adapter

    Also found as: 184474

    Sonic Electronix Bonus Pack 3 Includes:

    3-year Sonic Electronix Warranty on the Koss PRO4S Headphones
    • Coverage begins on date of purchase
    • No hassle warranty that comes with all the bells and whistles and no hidden gotchas
    • Comes fully equipped with a 5-day service guarantee, 24/7 Online access to your warranty contract
    • Protection from ALL mechanical and electrical failures

    Note: International Customers are responsible for all shipping, duties and taxes

    15% off Coupon for the Headphone Amplifier, DAC or Accessory of Your Choice
    Extended 180 Day Exchange for the Koss PRO4S Headphones
    • If you don't love your new high resolution music player, exchange them within 180 days no questions asked!
      • Only applies to the Koss PRO4S Headphones
      • Must be returned without physical damage in original packaging with all accessories
        • Defective products still eligible for standard 1 year exchange policy
      • Standard 60 day return policy still applies
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    General Features

    Connector Type
    The type of connection the headphones use to connect to receive the audio signal from a music source. Traditional headphones use an analog 3.5mm headphone jack. Newer technology has allowed digital signals to be sent directly to the headphone using an Apple Lightning or USB-C cable.

    Audio Features

    Driver Type

    The physical design of the driver in the headphones.

    Balanced Armature:
    A balanced armature driver uses a coil wrapped around an armature which is held in between two magnets until it is stimulated by an electrical current. When stimulated, this armature is magnetized which causes it to rotate one way or the other around a pivot point which moves the diaphragm to create sound. Balanced armature driver headphones are generally earbuds and can have multiple drivers in each earbud.

    Dynamic:
    Dynamic drivers are the most common driver type. They feature a permanent magnet, usually neodymium, a voice coil and a conical diaphragm to drive your music. A dynamic headphone driver looks pretty much identical to any typical home theater speaker.

    Electrostatic:
    Electrostatic drivers are made up of an extremely thin membrane, usually a coated PET film, stretched between two metal plates. An electrical signal is applied to the metal plates to create an electrical field which, depending on its polarity, draws the speaker diaphragm toward one of the plates which forces air through the perforations in the diaphragm which generates the sound wave.

    Planar Magnetic:
    A planar magnetic driver is made up of a large membrane suspended between two sets of oppositely aligned magnets. An electric charge is applied to the membrane to induce movement and produce sound waves.

    Dynamic
    Impedance
    The opposition to electric current, a higher impedance means a higher electrical resistance. This is measured in ohms.
    35 ohms
    Sensitivity
    An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
     
    Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
    99 dB
    Frequency Response
    The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
    10 - 25,000 Hz
    Audiophile
    Audiophile headphones represent some of the finest headphones available. Audiophile headphones produce genuinely outstanding sound quality as well as extraordinary build quality, components and comfort. They are truly the finest headphones available.
    No
    Built-in Amplifier
    This refers to whether the headphones have an amplifier built-in.
    No
    Amplifier Recommended
    This refers to whether a separate headphone amplifier is recommended for use with a specific pair of headphones. It is highly recommended that any headphone with an impedance greater than 100 ohms be amplified.
    No

    Specials with this Item

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    Warranty and Return Policy

    Parts Warranty Duration
    1 year
    Labor Warranty Duration
    1 year
    Warranty Provider
    Manufacturer

    Summary of Customer Ratings & Reviews

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    Product Summary

    Manufacturer

    Model Number

    PRO4S_HP-3YEARWARRANTY-200_180 Day Exchange

    Weight

    2.02lbs

    Internal SKU

    pro4s_hp-3yearwarranty-200_180-day-exchange

    Internal Product ID

    98513

    Sonic Electronix Wiring Guide

    Wiring Diagram Legend

    Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

    Product Name: Koss PRO4S + Sonic Electronix Bonus Pack 3

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