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The experts at DS18 have combined some of the best products for testing your favorite sounds against the elements this summer. This is a practical system with three of our best marine grade audio products that are easy to install and enjoy: (4) MP4TP/BK speakers, (1) BTRC-R BT Receiver and (1) MP.4A (4 Channels Amplifier). These products come ready to resist all the elements, water, dust, and vibrations that the world of motorsports brings.
DS18's MP4TP 4-inch tower pods display our effort to upgrade the durability of roughly used tower speakers. These new pods have a completely redesigned clamping system made for rough use. They can also be mounted easily on any vehicle but shine best on smaller vehicles that see a lot of vibration. The remodeled clamping system ensure longevity and the utmost stability against all elements. These are the go to speakers for crystal clear audio quality in vehicles with limited space.
DS18’s BTRC-R is an easy to use BT remote control that adds BT connectivity to any audio system. This BT remote mounts easily in every application and takes up almost no space. This unit will send out signal to your amplifiers and also give you control over the music being played via BT without having to fumble around with your phone, so you have less distractions.
Finally, DS18 presents the best digital class amplifier that will provide the best performance out of your speaker towers. The DS18 MP.4A is our latest Digital 4 Channel Full Range Marine Amplifier designed to power and lead every product included with the package. With this amplifier, your speakers will deliver audio as clear as the water you’re playing it on.
Highlights
Great for:





| SPECIFICATIONS | |
| Speaker Type / Size | 4" Tower Speakers |
| Sound System Components | 4 x Tower Speakers (MP4TP/BK) + 4 Ch Amplifier (MP.4A) + BT Receiver (BTRC-R) |
| Total Max Power Handling | 600W |
| Frequency Response | 60Hz-20KHz |
| Voltage Operation | 9-15V DC |
| (TOWERS) BODY / FEATURES | |
| Marine Grade Type | IPX5 + UV Stable |
| RGB LED | NO |
| Clamps | Tube Type Fixed with pads for 1-1/2" to 2" |
| Front Logo | Yes |
| Finish | Matt Black |
| Sensitivity | 89 dB |
| Total Impedance | 4 Ohm (Each Tower) |
| (TOWER) WOOFER SPECIFICATIONS | |
| Voice Coil Diameter | 1" / 25.4mm |
| Voice Coil Former Material | ASV |
| Cone Material | Injection Molded Polypropylene + UV Compliant |
| Surround Material | Butyl (Rubber) |
| Basket Material | Steel with Black protection coating |
| Magnet Material | Ferrite |
| Magnet Weight | 11 Oz |
| Magnet Diameter | 3.14" / 80mm |
| (TOWER) TWEETER SPECIFICATIONS | |
| Voice Coil Diameter | 1" / 25mm |
| Voice Coil Former Material | ASV |
| Winding Material | CCAW |
| Type | Dome |
| Diaphragm Material | PEI |
| Magnet Material | Neodymium |
| Magnet Weight | 45g |
| Crossover | 6dB/Oct |
| (AMPLIFIER) SPECIFICATIONS | |
| Amplifier Class | Stereo Full Range |
| Amplifier Type | Digital |
| Number of Channels | 4 Channels |
| Total RMS Power Handling | 4 x 40W @ 4 Ohms |
| Total MAX Power Handling | 4 x 120W @ 4 Ohms |
| Minimum Impedance | 4 ohms |
| Signal to Noise Ratio | 82dB |
| Power Input Terminal Size | 16 Ga |
| Fuse Size | 20 Amp |
| Thermal Protection | Yes (>75°C / 167°C) |
| Over-Load Protection | Yes |
| DC Output Protection | Yes |
| Short Circuit Output Protection | Yes |
| Voltage Input Protection | Yes (<9.2V / >16V) |
| (BT RECEIVER) SPECIFICATIONS | |
| Frequency Response | 20Hz-20KHz |
| Signal to Noise Ratio | >80dB |
| T.H.D: | <0.1% |
| Channel Separation | >60dB |
| Voltage Operation | DC 12-14.4V |
| Fuse Size | 5 Amp |
| BT Version | 5.0 |
| Wireless Range | >130 ft (conditions may vary) |
| Waterproof Rating | IPX6 |
| USB Charging Capacity | 1 amp |
| USB Files Format Compatible | MP3 / WMA |
| SKU | MP4TP.4A |
|---|---|
| Speaker Type / Size | 4" Tower Speakers |
| Sound System Components | 4 x Tower Speakers (MP4TP/BK) + 4 Ch Amplifier (MP.4A) + BT Receiver (BTRC-R) |
| Total MAX Power Handling | 600W / 4 x 120W @ 4 Ohms |
| Frequency Response | 60Hz-20KHz / 20Hz-20KHz |
| Voltage Operation | 9-15V DC / DC 12-14.4V |
| Marine Grade Type | IPX5 + UV Stable |
| RGB LED | NO |
| Clamps | Tube Type Fixed with pads for 1-1/2" to 2" |
| Front Logo | Yes |
| Finish | Matt Black |
| Sensitivity | 89 dB |
| Total Impedance | 4 Ohm (Each Tower) |
| Voice Coil Diameter | 1" / 25.4mm / 1" / 25mm |
| Voice Coil Former Material | ASV |
| Cone Material | Injection Molded Polypropylene + UV Compliant |
| Surround Material | Butyl (Rubber) |
| Basket Material | Steel with Black protection coating |
| Magnet Material | Ferrite / Neodymium |
| Magnet Weight | 11 Oz / 45g |
| Magnet Diameter | 3.14" / 80mm |
| Winding Material | CCAW |
| Type | Dome |
| Diaphragm Material | PEI |
| Crossover | 6dB/Oct |
| Amplifier Class | Stereo Full Range |
| Amplifier Type | Digital |
| Number of Channels | 4 Channels |
| Total RMS Power Handling | 4 x 40W @ 4 Ohms |
| Minimum Impedance | 4 ohms |
| Signal to Noise Ratio | 82dB / >80dB |
| Power Input Terminal Size | 16 Ga |
| Fuse Size | 20 Amp / 5 Amp |
| Thermal Protection | Yes (>75?C / 167?C) |
| Over-Load Protection | Yes |
| DC Output Protection | Yes |
| Short Circuit Output Protection | Yes |
| Voltage Input Protection | Yes (<9.2V / >16V) |
| T.H.D | <0.1% |
| Channel Separation | >60dB |
| BT Version | 5.0 |
| Wireless Range | >130 ft (conditions may vary) |
| Waterproof Rating | IPX5 |
| USB Charging Capacity | 1 amp |
| USB Files Format Compatible | MP3 / WMA |
Most products ship directly from our vendor warehouses or distributor network. Shipping times can vary depending on the brand, product size, availability, and destination.
Large or oversized items such as lift kits, wheels, tires, bumpers, exhaust systems, and audio enclosures may require additional handling time or freight shipping.
If there is ever an issue with availability, shipping cost, or delivery timing, we will contact you before moving forward with the order.
Returns may be accepted on most new, unused, unopened items within 30 days of delivery. Items must be in original packaging and in resellable condition.
Installed, used, damaged, missing-parts, electrical, special-order, clearance, or custom-built items may not be eligible for return.
Return shipping is normally the customer’s responsibility unless the return is due to our mistake, such as the wrong item being shipped.
Before sending anything back, please contact Kaos Offroad so we can review the order and provide return instructions. Returns sent without approval may be refused.
Some products are vehicle-specific. Please verify fitment before ordering. If you are unsure, contact us with your year, make, model, sub-model, and any relevant details before purchasing.
Original shipping charges, freight charges, and vendor restocking fees may be non-refundable depending on the item and supplier policy.




















