Zeroflex TREX-211 21-inch MONSTER 5000 RMS Dual 1 Ohm Car Subwoofer
⭐⭐⭐⭐⭐4.8/5.0 (18000+ Kiwi Reviews)Zeroflex TREX-211 21-inch MONSTER 5000 RMS Dual 1 Ohm Car Subwoofer
⭐⭐⭐⭐⭐4.8/5.0 (18000+ Kiwi Reviews)
Easy 14-Day Returns – No Hassle
Fast Delivery & Store Pickup Across NZ
100% Genuine, Fully Tested Devices
Warranty Included With The Product
Specifications
Product Specifications
- Model: TREX-211
The Zeroflex TREX-211 21-inch MONSTER Car Subwoofer is engineered to deliver unparalleled bass performance, making your car audio experience truly extraordinary. With advanced features and robust construction, it's a powerhouse for audiophiles seeking premium sound quality on the road.
HIGHLIGHTS
- 5000rms power handling
- 4.5" 8 layer copper voice coil
- Dual 1ohm high temperature voice coil
- High temperature Japanese glue
- Carbon Fibre Cone and Dust Cap
- Black cast aluminium basket
- 13" dual progressive spider
- Quad stitched on tinsel lead
- 10AWG Nickle plated push terminals
- Triple 300mm magnet stack
- High velocity pole vent
- 62KGS
- 1 year warranty
Note: Manufacturers warranty is void if damaged due to failure in installation or power surge. Professional installation is required. For warranty, invoice/certificate from installer is mandatory.
| Name | Zeroflex TREX-211 21-inch MONSTER 5000 RMS Dual 1 Ohm Car Subwoofer |
|---|---|
| SKU | CA00694 |
| Vendor | Zeroflex |
| Color | Default Title |
| Condition | Brand New |
Returns, Exchanges & Refunds FAQ
Can I return items for a change of mind?
Products may be exchanged within 7 days if sealed, unopened, and in original condition (subject to a 6% administration fee). Change-of-mind refunds are generally not offered.
What if my product is faulty?
We comply fully with the Consumer Guarantees Act 1993. Notify us with valid proof of purchase and clear photo/video evidence for transit damage or performance issues so we can review and resolve your claim.
How long do refunds take?
Once a returned item is received, inspected, and approved, standard refunds may take around 15 working days to process back to the original payment account.
What our Valuable Customers Say about us.
Why Choose TechCrazy?
Here’s why TechCrazy is NZ’s leading electronics store you can trust:

14+ Years of Excellence
Since 2010, we’ve served over 100,000 happy customers across NZ. With 17,000+ positive Trade Me reviews since 2009, our proven track record shows we deliver top-quality tech and unbeatable service—every time.

Real Stores, Real Support
We’re more than just an online shop. Visit our two Auckland stores in Massey and Manukau to see products up close, ask questions, or get instant help. Our hands-on approach makes us a cut above the rest.

Trusted by Thousands
With 18,000+ glowing reviews on Google & Trade Me and a growing fanbase on Google, Tiktok and Facebook, our customers’ trust speaks for itself. Join a community that relies on us for value and service.



