Zeroflex XXL Competition Bass Package

2x Zeroflex EVO-15XXL 15" Subwoofers + Zeroflex TKO-8.1K Monoblock Amplifier

When ordinary bass isn't enough.

The Zeroflex XXL Competition Bass Package is built for those chasing extreme SPL performance without compromise. Combining two EVO-15XXL 15-inch competition subwoofers with the devastating TKO-8.1K Full Bridge amplifier, this package is capable of delivering earth-shaking bass that can dominate both the street and the competition lanes.

Designed and engineered for serious bass enthusiasts, this package provides an incredible 7,000 Watts RMS of subwoofer power handling driven by one of Zeroflex's most powerful competition amplifiers. Whether you're building an elite demo vehicle, dedicated SPL car or simply want bass that can be felt hundreds of metres away, this package delivers the performance to back it up.

Each EVO-15XXL features a massive 3.5" four-layer copper voice coil, triple-stacked motor assembly, dual 10-inch progressive spiders, and high-excursion SPL surround, allowing enormous cone movement while maintaining outstanding control and reliability.

Powering the system is the TKO-8.1K Full Bridge amplifier, producing up to 8,000 Watts RMS @ 1 Ohm, giving you all the power required to push the EVO-15XXLs to their full potential.

Package Includes

• 2 × Zeroflex EVO-15XXL 15" Competition Subwoofers

• 1 × Zeroflex TKO-8.1K Full Bridge Monoblock Amplifier

• 1 × Remote Bass Controller

Package Features

Zeroflex EVO-15XXL Subwoofers

• 15" Competition SPL Subwoofers

• 3,500 Watts RMS Each

• Dual 1 Ohm Voice Coils

• 3.5" Four-Layer Copper Voice Coil

• Massive Triple Magnet Motor

• Carbon Fibre Dust Cap

• White Cast Aluminium Basket

• High Excursion SPL Surround

• Dual Progressive Spider Suspension

• Heavy Duty 10AWG Push Terminals

Zeroflex TKO-8.1K Amplifier

• Full Bridge Competition Amplifier

• 8,000 Watts RMS @ 1 Ohm

• 7,000 Watts RMS @ 2 Ohms

• 5,000 Watts RMS @ 4 Ohms

• Dual 0 Gauge Power Inputs

• Variable Low Pass Filter

• Variable Subsonic Filter

• Variable Bass Boost

• Remote Bass Knob Included

Combined System Specifications

Total Subwoofer Power Handling

• 7,000 Watts RMS

• 14,000 Watts Peak

Amplifier Output

• 8,000W RMS @ 1 Ohm

• 7,000W RMS @ 2 Ohms

• 5,000W RMS @ 4 Ohms

Ideal Applications

• Competition SPL Builds

• Demo Vehicles

• Show Cars

• Extreme Daily Drivers

• Bassheads Wanting Maximum Output

Garage Audio Recommendation

This is an elite-level competition package and should be installed with a professionally designed electrical system. We strongly recommend:

• Custom-built competition enclosure

• Multiple AGM or lithium batteries

• High-output alternator

• 0AWG power cable throughout

• Big 3 upgrade

• Professional DSP tuning (where applicable)

Our team can design and build a complete system around this package to ensure maximum performance and reliability.

Why Choose the Zeroflex XXL Competition Package?

This isn't just another bass package—it's a complete competition-grade foundation built for enthusiasts who demand the loudest, deepest bass possible. With enormous power handling, premium components, and one of Zeroflex's flagship amplifiers, this package is engineered to deliver relentless low-frequency output while maintaining the reliability needed for everyday abuse or weekend competition.

If you're serious about bass, this is the package that separates you from everyone else.