Zeroflex ZF40K amplifier, supplier photo 1 of 4
Zeroflex ZF40K amplifier, supplier photo 1 of 4
Zeroflex ZF40K amplifier, supplier photo 2 of 4
Zeroflex ZF40K amplifier, supplier photo 2 of 4
Zeroflex ZF40K amplifier, supplier photo 3 of 4
Zeroflex ZF40K amplifier, supplier photo 3 of 4
Zeroflex ZF40K amplifier, supplier photo 4 of 4
Zeroflex ZF40K amplifier, supplier photo 4 of 4
Click to open expanded view

Zeroflex ZF40K Mono Competition Amplifier, 40,000 W RMS

SKU: ZF40K
Price
$3,300
Inc. GST. Most orders ship Australia wide for a flat $15.95. Larger or heavier items may cost more.
Buy now, pay later
  • image
  • image
  • image

Pre order. Stock is on its way to Australia and we will ship as soon as it lands.
Shipping information

Australia wide flat rate shipping is $15.95. Larger or heavier items may cost more; we will confirm when your order is processed. In stock items are dispatched within 1 to 2 business days. Report transit damage within 24 hours with photos so we can lodge a freight claim.

Share this product

Share Post Pin E-mail
Zeroflex ZF40K amplifier, supplier photo 1 of 4

Zeroflex ZF40K Mono Competition Amplifier, 40,000 W RMS

$3,300

Product features

A factory head unit has limited power, so speakers run out of clean volume early. The ZF40K is an amplifier that gives your subwoofer the power it needs for a serious SPL build.

It is a single channel competition amplifier. The maker, Zeroflex, lists 40,000 W RMS at 1 ohm, 25,500 W RMS at 2 ohm and 16,700 W RMS at 4 ohm. It is intended for high output bass systems and needs a correctly planned electrical system and professional fitting.

Key features

  • Single channel SPL amplifier
  • Protection circuitry for over voltage, under voltage, thermal and short conditions (maker description)
  • Alloy heatsink and cooling (maker description)

Specifications

  • RMS at 1 ohm: 1 channel x 40,000 W
  • RMS at 2 ohm: 1 channel x 25,500 W
  • RMS at 4 ohm: 1 channel x 16,700 W
  • THD: less than 1%
  • Frequency response: 10 Hz to 10 kHz
  • High pass filter: 15 Hz to 80 Hz
  • Low pass filter: 40 Hz to 10 kHz
  • Bass boost: 12 dB
  • Dimensions (L x W x H): 1055 x 208 x 64 mm
  • Part number: ZF40K
  • Spec source: official Zeroflex product page, zeroflex.co.nz, 11 Nov 2026

Installation

We recommend fitting by a qualified car audio installer, with correctly rated power wiring and fusing. Our workshops at Albion Park Rail (02) 4257 2636 and South Nowra (02) 4423 5254 can quote on fitting.

Warranty

It comes with the manufacturer's warranty through the Australian distributor, plus your rights under the Australian Consumer Law.

Questions and answers

How much power does the ZF40K put out?

The maker lists 40,000 W RMS at 1 ohm (1 channel), 25,500 W RMS at 2 ohm, and 16,700 W RMS at 4 ohm.

Do I need a wiring kit for the ZF40K?

Yes. An amplifier needs power, earth, remote and signal wiring sized to its current draw, with a fuse near the battery. This is a very high current SPL amplifier, so the electrical system and cable size have to be planned properly. Ask us and we will match a kit.

Can you fit the ZF40K for me?

Yes. Our Albion Park Rail and South Nowra workshops can quote on supply and fitting. Call (02) 4257 2636 or (02) 4423 5254.

What warranty comes with the ZF40K?

It comes with the manufacturer's warranty through the Australian distributor, plus your rights under the Australian Consumer Law.

What are the dimensions of the ZF40K?

The maker lists 1055 x 208 x 64 mm (length x width x height).