Skip to product information
1 of 9

4300x1 (4300W RMS) 1CH AMPLIFIER JP43

4300x1 (4300W RMS) 1CH AMPLIFIER JP43

Regular price $774.99
Sale price $774.99 Regular price $1,299.99
Save 40%
Color: Green
Proven Performance

Secure SSL Payments

  • Visa
  • Shop Pay
  • PayPal
  • Mastercard
  • Discover
  • Apple Pay
  • American Express
  • Maestro

Free Shipping on orders over $50.

Introducing the Down4Sound JP43, a monoblock amplifier that delivers a staggering 4300W RMS—and that's just the beginning. Engineered for bass aficionados, this is not your average 4000W amp. It's a sonic juggernaut designed to unleash monstrous, storm-level bass from your subwoofer.

Advanced Features for Peak Performance

  • Dual Power and Ground Inputs: For optimal power stability, we've incorporated dual power and ground inputs.
  • High-Quality RCA Connectors: Equipped with true Tiffany RCA connectors for unmatched signal integrity.
  • Instant Cooling Fan: The internal fan kicks in as soon as you power up, ensuring the amplifier stays cool during intense usage.
  • Color: Black

Warranty Requires Electrical Upgrade

To unlock the full potential of this amplifier, a mandatory electrical upgrade is essential. Failure to meet these requirements will void the warranty. You'll need:

  • The Big 3
  • Upgraded Alternator
  • Reserve Battery(s)

Power Ratings (Tested at 14.4V @ 1% THD)

  • 1-ohm: 4300W RMS
  • 2-ohm: 2300W RMS
  • 4-ohm: 1300W RMS

Additional Technical Specifications

  • Frequency Response: 14Hz – 260Hz
  • Signal-to-Noise Ratio: 89dB
  • Damping Factor: < 400
  • Efficiency at 4-ohm: 94%
  • Input Sensitivity: 6V – 0.2V
  • Subsonic Filter: 10Hz – 50Hz
  • Low Pass Filter: 35Hz – 250Hz
  • Phase Control: 0 – 180 degrees
  • Strappable Connection: Yes
  • Speaker Connection: Compatible down to half an ohm
  • Fusing: 400A Total (200A for each positive input)
  • Clipping Indicator: Yes
  • BT Remote Control: Features voltage and temperature display, along with a clipping indicator
  • Power Connection for BT Remote: C-type (external battery pack or USB power required; unit does not have rechargeable batteries)
  • Speaker Output: 4-gauge
  • Power Inputs: 2 x 0-gauge
  • Operating Voltage: 9 to 16 Volts
  • Dimensions: 15.75" (L) x 9.37" (W) x 2.64" (H)
  • Country of Origin: Made in South Korea
View full details
  • Free Shipping

    On all orders over 50 dollars in the continential US

  • 100% Secure

    Payments are protected with encrypted checkout.

  • Returns Policy

    All sales are Final

  • Chat Support

    Real audio experts ready to help you anytime.

Frequently Asked Questions

Didn't find your answer?

We're here to help!

Do your products come with a warranty?

Yes all products we sell carry there manufactures warrany

What phone number can I call for Tech Support?

1(775)7374181

What is your return policy?

All sales are final, Under certain circumstances some excepions may be made

Do you have a team to help me plan my system?

We sure do, We have experts here in every aspect of the field.

Didn't find your answer?

We're here to help!