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5 Core

5 Core 8-inch 400W Guitar Speaker for Guitar Amplifier Universal Replacement 40W RMS Speaker SP 872 GTR

Regular price $6.00 USD
Regular price $51.43 USD Sale price $6.00 USD
Sale Sold out

About Item

  1. 400-watt power: The 5 Core guitar amplifier speaker has a 4-ohm impedance. It can handle a peak power of 400 Watts and CEA-rated RMS power of 40 Watts. The voice coil is 1 inch, and it is high-temperature resistance. The guitar amplifier speaker cone is specially designed for the best effect, and the voice coil is highly insulted.   

  2. Unmatched performance: The 8-inch guitar amplifier speaker has a high-quality magnet and cast steel body with a pre-treated woofer frame, making it a beautiful finish and efficient. The inbuild heat sinks ensure proper heat dissipation and voltage sustainability.

  3. Cone: The cones used to make this guitar amplifier speaker are ultra-stiff, thicker, and stronger than other subs on the market, allowing them to handle more power. The thick foam surround provides incredible sound quality with minimal distortion.

  4. Play hard, Play Longer: The PP reinforcement edge ensures a long life for this 8-inch guitar amplifier 4-ohm dual voice coils configuration.  Designed to enhance heat dissipation, it has advanced airflow cooling that extends playtime.

  5. Powerful Adhesive: 5 Core uses highly adhesive materials in the assembly of this speaker for strong bonding between all parts. The best quality lead-free solder is used for a strong connection between the coil wire, tag, and copper tensile wire.

Product Description

The high-performance guitar amplifier speaker is designed to provide the ultimate sound experience for guitar players. With a PMPO of 400 Watts and a CEA-rated RMS 40W power handling, it can deliver deep, powerful sound reproduction that will make your music come to life. The 8-inch guitar amplifier speaker features a specially designed woofer cone that delivers a powerful bass effect and ultra-stiff cones that can handle more power than other subs on the market.

With its advanced airflow cooling system, this guitar speaker can perform at its best, even in high temperatures. Plus, our advanced quality testing ensures that our speakers are trustworthy and of superior quality. Join the 5 Core family and take your guitar amplifier sound to the next level!

At 5 Core, Customer satisfaction is our priority—a proven track record of delivering the highest quality product since 1984.


Enjoyable commute

Better design

Better materials

Easy install

The high-quality guitar speaker improves the overall audio quality and makes the playing more enjoyable and relaxing. 

8-inch 4 Ohm dual Voice Coil Configuration with Paper CONE with rubber edge is designed to perform and maintain the sound & system's stability.

The guitar amplifier speaker are made from high-quality materials. The strong structure makes the speakers durable and easy to withstand wear and tear.

The guitar amplifier speaker is not difficult to install. You do not have to use fancy types of equipment. Use a screwdriver, and that's it! Get the speaker and start rocking!

Product Specifications:

  • Size: 8-inch
  • Voice coil: 4 Ohm
  • Peak Power: 400 Watts
  • RMS Power: 40 Watts
  • Advanced Air Flow Cooling System
  • 1 " Voice Coil

Package Includes: 

  • 1x guitar amplifier speaker 


The guitar amplifier speaker can be used to replace bad or old speakers.

Upgrading a factory speaker for better sound and clarity.

Adding to other sound setups for a more powerful audio experience.

Incorporating into a home theater setup for a more immersive expense.

Install the guitar amplifier speaker in car for an improved listener experience while driving.

Benefits of products

It adds a more immersive audio experience.

Delivers a more powerful audio experience.

Improves listening experience while playing.

Easy to install in the amps, car, boat, truck, or home theater system.

It can enhance the guitar playing experience & make you play more.

Benefits of 5 Core over other products

Deliver powerful and clear sound.

Durable can withstand the rigors of daily use.

Resistant to high-temperature, high-wattage situations.

Large speaker cone area for a better low-frequency response.

Wide range of sound output with both high and low frequencies.

Why 5 Core

5 Core has been known for producing high-quality, premium products since 1984.

We are committed to using only the best materials and components to ensure the longevity of our products.

The best deals compared to other brands in the market without compromising on quality.

The trustworthy choice for thousands of customers scattered worldwide in more than 65 countries.

Backed by a proven track record of happy customers and peace of mind.



5 Core Product

Other Product

Large cone



Powerful & clear sound



Best deal



About Brand

5 Core, headquartered in California, warehouse in Bellefontaine, OH, USA, has a reputation for being a trusted and reliable brand, offering products designed to meet the highest industry standards. Our products are thoroughly tested and inspected before they are sent to the end user, ensuring that the customers receive products of the highest quality and reliability. With a commitment to quality, affordability, and customer satisfaction, 5 Core is a brand people can trust for all their needs and wants.



Question: Do I get the wires too?

Answer: No, the package contains the speakers.

Question: Can I install it on the car?

Answer: Yes, it can be used as a car speaker.

Question: Do I need separate wires to Install these?

Answer: If there are no existing wires, then yes.

Question: Do I have to change the guitars?

Answer: No, you do not have to do that if you are satisfied with the current instrument.

Question: Can I use it to boost car audio?

Answer: Yes, if you are looking for car speakers with good bass, it is well-suited.



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