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AR4-1800 4 Ch Amplifier 1800W Class A/B Full Range Bass 2 Ohm Stable OPEN BOX

CASE QUANTITY: N/A

PACKAGE WEIGHT: 10.0 LB

SKU SS-AR4-1800-OPEN-8314
Sold out
Original price $148.69
Original price $148.69 - Original price $148.69
Original price $148.69
Current price $72.88
$72.88 - $72.88
Current price $72.88

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  • Works Fine. Missing Screws on Face Plate. Brackets Bent. Install Damage. Minor Surface Scratches.
  • Open-box items are not subject to returns
  • They are sold "As Is"
  • All requests for returns will not be accepted


This Listing Includes:


(1) AR4-1800 1800W 4 Channel Amplifier


Condition:



  • Open Box: Minor surface scratches

  • Install Damage: Missing screws on face plate, brackets bent

  • Functionality: Works fine

  • Note: Open-box items are sold "As Is" and are not subject to returns. All requests for returns will not be accepted.


Amplifier Specifications:



  • Model: AR4-1800

  • Type: 4 Channel Class A/B Full Range Amplifier

  • Power Output:180W x 4 @ 4 Ohm

    225W x 4 @ 2 Ohm

    450W x 2 @ 4 Ohm Bridged

    1800W Max Power


  • Crossover:High Pass (Ch 1&2): Variable 120-3kHz, 12 dB

    High Pass (Ch 3&4): Variable 120-3kHz, 12 dB

    Low Pass (Ch 3&4): Variable 50-250Hz, 12 dB


  • Bass Boost: 6dB & 12dB 50Hz switch

  • Total Harmonic Distortion (THD): 0.05%

  • Frequency Response: 15-20kHz

  • Signal-to-Noise Ratio: 105dB

  • Input Sensitivity: 200mV-6V

  • Protection: Direct Short, Thermal & Overload Circuit Protection

  • Features: Military Grade PCB w/ PWM MOSFET Power Supply, Stereo Low-Level RCA Inputs

  • Power and Speaker Wire Outputs: 4G Power Wire & 8G Speaker Wire

  • Treble Boost: 12 dB, enhances upper octave harmonics

  • Dimensions: 15.75" x 8.5" x 2.125"

  • Stability: 2 Ohm Stereo, 4 Ohm Bridged Full Range


Note: This amplifier is designed for a wide range of audio applications, offering significant power output and control for a high-quality sound experience. The open-box condition is reflected in the price, providing an opportunity for those looking for a high-performance amplifier at a reduced cost.

Accepted Payment Methods at Big Jeff Audio

At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:

Credit and Debit Cards

  • Visa
  • Mastercard
  • American Express
  • Discover
  • Diners Club

Digital Wallets

  • Amazon Pay
  • Apple Pay
  • Meta Pay (formerly Facebook Pay)
  • Google Pay
  • Shop Pay
  • PayPal

International Payment Methods

  • Bancontact
  • iDEAL

Bank Transfers

  • Zelle

Financing Options

We also offer financing options to make purchasing easier. Learn more about our financing options here.

  • Klarna
  • Affirm
  • Sezzle
  • Snap
  • Acima
  • Tiptop

If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.

Shipping Options and Delivery Time

Do You Offer Expedited Shipping?

Yes! At checkout, you can select from different shipping options:

  • Standard Shipping: Free for orders over $100.
  • Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.

How Long Does Delivery Take?

  • Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
  • Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.

What Happens If My Package Is Undeliverable?

If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.

Why Can’t I Track My Order?

If you're having trouble tracking your order:

  • Make sure you’ve received the shipping confirmation email with the tracking number.
  • Log into your account on our website and use the “Check Your Order Status” button.
  • If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.

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