Zeroflex TKO-5.1K 5000W RMS Mono Amplifier | Full Bridge Competition Amplifier

The Zeroflex TKO-5.1K Full Bridge Mono Amplifier delivers extreme power and performance for serious car audio enthusiasts looking to build a high-output bass system.

Designed and engineered in New Zealand by Kiwis, the TKO-5.1K is a competition-grade amplifier built for demanding SPL applications, providing massive power output, advanced tuning controls and reliable performance when paired with high-performance subwoofers.

Delivering up to 5000W RMS at 1 Ohm, this full bridge mono amplifier is designed to maximise the performance of powerful subwoofer setups while maintaining control and efficiency.

Featuring adjustable crossover controls, bass boost adjustment and a remote bass controller, the TKO-5.1K gives you complete control over your bass response. Heavy-duty 0 Gauge power input and robust internal design ensure it can handle the current demands of extreme bass systems.

Perfect for competition builds, demo vehicles and enthusiasts chasing serious low-frequency output.

FEATURES

• Full Bridge Competition Mono Amplifier
• Designed and engineered in New Zealand
• 5000W RMS maximum output capability
• Stable operation down to 1 Ohm
• Remote bass controller included
• Adjustable bass boost control
• Variable low-pass filter
• Variable high-pass filter
• 0 Gauge power input terminal
• 8 Gauge speaker output terminal
• Built for high-performance subwoofer systems
• Wide operating voltage range (10V–16V)

POWER OUTPUT

Power Output @ 13.4V (1% THD)

• 1 x 5000W RMS @ 1 Ohm
• 1 x 3200W RMS @ 2 Ohm
• 1 x 1800W RMS @ 4 Ohm

SPECIFICATIONS

Model: TKO-5.1K

Amplifier Type:
Full Bridge Mono Amplifier

Frequency Response:
20Hz – 20kHz

Input Sensitivity:
0.2V – 6V

Low Pass Filter:
80Hz – 20kHz

High Pass Filter:
15Hz – 8kHz

Bass Boost:
0 – 12dB

Working Voltage:
10V – 16V

Signal to Noise Ratio:
75dB

Fuse Rating:
200A

Input Terminal:
0 Gauge

Output Terminal:
8 Gauge

Dimensions:
265mm (L) x 228mm (W) x 68mm (H)

WHAT'S INCLUDED

• Zeroflex TKO-5.1K Mono Amplifier
• Remote Bass Controller
• Installation Accessories

PERFECT FOR

• SPL competition builds
• High-output bass systems
• Multiple subwoofer setups
• Demo vehicles
• Custom 4WD audio builds
• Enthusiasts wanting extreme bass performance

PROFESSIONAL INSTALLATION AVAILABLE

High-power amplifiers like the Zeroflex TKO-5.1K require correct electrical upgrades, power wiring and tuning to achieve maximum performance safely.

Garage Audio specialises in custom car audio systems, high-power amplifiers, subwoofer upgrades and competition-style builds.

Professional installation available at our Morayfield workshop.