4 Pack 6.5" Carbon Fiber Midrange Speakers

Upgrade your car audio with the perfect power-and-clarity combo! This Black Diamond bundle includes the high-performance DIA-K4S 4-Channel Amplifier and a powerful 6.5” 2-Way Midrange Speaker with bullet tweeter. Delivering up to 1000W peak power, crystal-clear mids, and extreme durability, this setup is engineered for audiophiles and bassheads who want clean, loud, competition-ready sound without compromise.

High-Performance Amp + Speaker Combo – Get the most out of your sound system with the DIA-K4S amplifier (4x90W, 4x150W, 2x300W) paired with a 6.5” midrange speaker delivering 250W RMS of crisp, detailed audio.

Crystal-Clear Sound Quality – The 2-way midrange speaker features a built-in bullet tweeter and 94dB sensitivity, ensuring high-volume playback with minimal distortion across 125Hz–12kHz.

Versatile Power Options – Stable at 2-ohm stereo and 4-ohm bridged, the amplifier gives you flexibility for custom setups and competition-level performance with a compact, stylish build.

Built to Withstand the Heat – Short circuit and thermal protection in the amp, paired with durable speaker materials like a Kapton voice coil and non-pressed paper cone, ensures reliable operation.

Easy Installation for Any Build – Designed with universal 4-ohm impedance, this system fits a wide range of vehicles and is perfect for front or rear door speaker upgrades or full custom builds.

Package Includes

4X 6.5" Speakers

1x Amplifier