Zeroflex ZFX124 12" 350W RMS Slim Car Subwoofer + Sound Magus DK600 Class D AMP + Subwoofer Box + Wiring Kit (Bundle Deal)
12 MONTHS WARRANTY


We’re committed to getting your order to you quickly! Most of our orders are delivered within 1-2 working days when placed before 2 PM, Monday to Friday*, subject to stock availability. Double-check your delivery details to ensure a smooth and speedy process.
⚠️ Important:
- If the address you provide is incorrect or the courier faces difficulties accessing it, a re-direction fee may apply.
- We’ll always contact you in case of any additional charges due to insufficient courier fees during checkout.
If you haven’t received your parcel within 5 days, don’t hesitate to reach out to us at cs@techcrazy.co.nz or give us a call at (09) 280 3923. For further assistance, you can also use the Contact Form on our website.
Shop confidently with fast, reliable shipping. Order today and receive your items in no time!
*Shipping available Monday to Friday only.

At checkout, you get to choose – wait for delivery, or get the ‘Pick Up’ in-store option. If the store has the item in stock, your order will be ready for collection within 30 minutes to 1 hour! Please note "PRIOR ARRANGEMENT IS NEEDED FOR PICK UP" as stock varies to locations.
Please bring in a valid photo ID with you when you visit our stores' for pick up matching to the name of the order or it will not be released.
Cost & timings
Pick-Up is a completely free of charge service!! If the store has got the product in stock, the time for turnaround is 1 hour from the time order is placed.
If the store you intend to pick up from has not got the stock of any product, our team will get the stock transferred from another store or from our distribution centre free of charge to your local store. During the transfer process, it will take approximately 2-3 working days and we will send you confirmation as soon as the order is ready for collection.
Collecting your order
Make sure you have got the confirmation for collection of order via email or text before you make your way to the store.
Please Note: Order Confirmation is not pick up confirmation, we will send you the pick up instructions once the order is processed.

7 Day Right of Exchange:
Customers can return any product for an exchange within 7 days of purchase, provided the product is returned in its original condition with packaging and invoice. However, if you change your mind, we will not be able to offer an exchange.
Excluded Products:
The following products are excluded from this guarantee, except where they are faulty:
- Headphones/Earphones
- Personal Care Items (e.g., shavers)
- Gift Cards, Sim Cards, Recharge Cards, and Vouchers (e.g., iTunes)
- Software
- VR Headsets
- Extended Warranties
- Wearables
Refund Policy:
We do not provide refunds if you change your mind about a purchase, so please choose carefully.
If the product you have bought is faulty, we will provide a remedy as required by the Consumer Guarantees Act.
We aim to deliver most orders within 1-2 working days if your order is placed before 2 PM, Monday through Friday. Please note that delivery times are subject to stock availability and other factors.
Important: Ensure your delivery address is correct when placing your order. If the address is incorrect or the courier is unable to access it, a re-direction fee may apply. Double-checking your details will help us provide a faster delivery experience.
If additional courier charges are required due to incorrect charges at checkout, we will contact you to arrange the payment. If you do not receive your parcel within 5 working days, please reach out to us via email at cs@techcrazy.co.nz or call us at (09) 280 3923.
For further inquiries, you can also use our contact form on the website.
Note: Special-priced products are limited to a maximum of 2 per customer.
How does it work?
At checkout, you get to choose – wait for delivery, or get the FREE ‘Pick Up’ in-store option. If the store has the item in stock, your order will be ready for collection within 30 minutes to 1 hour! Please note "PRIOR ARRANGEMENT IS NEEDED FOR PICK UP" as stock varies by location.
Cost & timings
Pick-Up is completely free of charge! If the store has the product in stock, the turnaround time is 1 hour from when the order is placed.
If the store you intend to pick up from does not have the stock of any product, our team will transfer the stock from another store or from our distribution centre free of charge to your local store. During the transfer process, it will take approximately 2-3 working days, and we will send you confirmation as soon as the order is ready for collection.
Collecting your order
Make sure you have received the confirmation for collection of your order via email or text before making your way to the store.
Please Note: Order Confirmation is not pick-up confirmation. We will send you pick-up instructions once the order is processed.
Note: Special-priced products are limited to a maximum of 2 per customer.
Product description
Zeroflex ZFX124 12" 350W RMS Slim Car Subwoofer + Sound Magus DK600 Class D AMP + Subwoofer Box + Wiring Kit (Bundle Deal)
Zeroflex ZFX124 12" 350W RMS Slim Car Subwoofer
Take your car audio experience to the next level with the Zeroflex ZFX124 12" 350W RMS 2ohm Slim Car Subwoofer. Designed for compact spaces, this shallow subwoofer delivers powerful bass and exceptional performance. Its advanced features, including a dual 2-ohm voice coil and high excursion surround, ensure crystal-clear sound and deep low-end frequencies. The Zeroflex ZFX124 is perfect for audio enthusiasts who demand premium sound quality without sacrificing space.
Key Features:
- Size & Power: 12" Slim Subwoofer with 350W RMS for robust bass performance.
- Dual 2-Ohm Voice Coil: DVC 2-ohm configuration for flexible wiring options.
- 2" Aluminum Voice Coil: Ensures durability and high heat resistance during peak performance.
- Rubber High Excursion Surround: Delivers deeper bass with reduced distortion.
- Progressive Spider Suspension System: Enhances stability and performance at high power levels.
- Vented Pole Piece: Promotes efficient cooling for continuous, reliable operation.
- Frequency Response: 30-700Hz for detailed sound across a wide range of low frequencies.
- Mounting Depth: Slim 95mm depth for easy installation in tight spaces.
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.
Sound Magus DK600 Class D AMP - 600w RMS
Achieve powerful, high-quality bass with the Sound Magus DK600 Class D Amplifier. Designed for bass enthusiasts, this mono amplifier delivers up to 600W RMS at 2 ohms, making it perfect for driving your subwoofers with authority and precision. With advanced protection features and customizable settings, the DK600 ensures exceptional performance and reliability.
Key Features:
-
Powerful Output:
- 600W RMS @ 2 Ohms (14.4V).
- 400W RMS @ 4 Ohms (14.4V).
- Class D Mono Bass: High-efficiency amplifier tailored for deep, impactful bass.
- Stable at 2 Ohms: Reliable performance even at low impedance.
- Advanced Protection: Short circuit, overload, overheating, and low-voltage safeguards.
- Customizable Controls: Adjustable input level, low-pass filter (LPF), and subsonic filter (HPF).
- Heavy-Duty Build: Features durable terminals and double-sided PCB with SMD components.
- Optional Remote Control: Convenient remote controller available for enhanced user experience.
Specifications:
- Input Level: 0.2-5V.
- Frequency Response: 10-220Hz.
- Low-Pass Filter (LPF): 40-220Hz.
- Subsonic Filter (HPF): 10-50Hz.
- Bass Boost: 0dB, 6dB, or 12dB (switchable).
- Efficiency @ 4 Ohms: >80%.
- THD (4 Ohm, 30% Rated Power): 80dB.
- Minimum Load: 2 Ohms.
- Dimensions: Compact and robust design for easy installation.
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.
Soundtech 12-inch Single Band Pass Subwoofer Box
Upgrade your car audio system with this Soundtech 12-inch Single Band Pass Subwoofer Box, designed to deliver deep bass and optimized sound performance. Its precision-tuned enclosure enhances low-frequency response, making it ideal for music lovers who crave powerful bass without distortion.
Key Features:
- High-Performance Design: Band pass enclosure maximizes bass output and sound clarity
- 12-Inch Subwoofer Compatibility: Engineered to house most standard 12” subwoofers securely
- Compact Dimensions: Space-saving build (W18” x H13.5” x TD11” x BD16”) fits most vehicles
- Enhanced Bass Response: Tightly sealed enclosure boosts low-frequency performance
- Durable Construction: Made with quality MDF and carpeted for long-lasting durability and sleek look
Specifications:
- Enclosure Type: Single band pass
- Dimensions: W18” x H13.5” x Top Depth 11” x Bottom Depth 16”
- Material: High-grade MDF with carpet finish
- Terminal: Pre-installed terminal cup
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.
Soundtech ST-AMK8GA 8 Gauge AMP Wiring Kit
Get powerful audio performance with the Soundtech ST-AMK8GA 8 Gauge AMP Wiring Kit, a complete solution for installing your car amplifier system. Designed for high-efficiency power transfer and signal clarity, this kit includes everything you need—from 8GA power and ground cables to RCA and speaker wires, fuse protection, and remote turn-on cable.
Key Features
- 8GA Power Cable (17Ft): Heavy-duty red clear cable for efficient power delivery
- 8GA Ground Cable (3Ft): Black clear cable ensures stable and grounded current flow
- 16GA Speaker Cable (17Ft): Transparent design for flexible and clear signal transmission
- High-Performance RCA Cable (17Ft): Black shielding minimizes noise and signal interference
- Remote Turn-On Cable (17Ft): Ensures timely amp activation with reliable connectivity
- Split Loom Tubing (6Ft): Adds protection and neatness to your wiring setup
- AGU Fuse Holder + 60A Fuse: Built-in fuse protection for amp and vehicle safety
Specifications
- Brand: SoundTec
- Model: ST-AMK8GA
- Use Case: Car amplifier installation, high-power car audio systems
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.
Specifications
Name | Zeroflex ZFX124 12" 350W RMS Slim Car Subwoofer + Sound Magus DK600 Class D AMP + Subwoofer Box + Wiring Kit (Bundle Deal) |
---|---|
SKU | CA00001 |
Vendor | Zeroflex |
Screen Size | 12" |