---
product_id: 547597631
title: "Amplifier car Audio Monoblock Class D Compact Subwoofer Amplifier, 2/4 Ohm Stable, Low/High Level Inputs, Low Pass Crossover, Mosfet Power Supply"
brand: "plinius"
price: "₹ 1454"
currency: INR
in_stock: true
reviews_count: 13
url: https://www.desertcart.in/products/547597631-amplifier-car-audio-monoblock-class-d-compact-subwoofer-amplifier-2
store_origin: IN
region: India
---

# 450W RMS @ 2Ω 300W RMS @ 4Ω Cool operation Amplifier car Audio Monoblock Class D Compact Subwoofer Amplifier, 2/4 Ohm Stable, Low/High Level Inputs, Low Pass Crossover, Mosfet Power Supply

**Brand:** plinius
**Price:** ₹ 1454
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate Your Ride with Unmatched Sound Quality!

## Quick Answers

- **What is this?** Amplifier car Audio Monoblock Class D Compact Subwoofer Amplifier, 2/4 Ohm Stable, Low/High Level Inputs, Low Pass Crossover, Mosfet Power Supply by plinius
- **How much does it cost?** ₹ 1454 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/547597631-amplifier-car-audio-monoblock-class-d-compact-subwoofer-amplifier-2)

## Best For

- plinius enthusiasts

## Why This Product

- Trusted plinius brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Cool & Collected:** MOSFET power supply keeps the amplifier cool, even during the most demanding playlists.
- • **Smart Engineering:** Designed for optimal efficiency, making the most of your vehicle's electrical system.
- • **Stable & Reliable:** 2-4 Ohm stable, ensuring consistent performance without overheating.
- • **Compact Efficiency:** Class D design minimizes power loss, maximizing your audio experience.
- • **Powerful Performance:** Unleash 450 watts RMS at 2-ohm for heart-thumping bass.

## Overview

The Amplifier Car Audio Monoblock Class D Compact Subwoofer Amplifier delivers powerful audio performance with 450 watts RMS at 2-ohm and 300 watts RMS at 4-ohm. Its Class D technology ensures high efficiency and minimal heat generation, while its 2-4 Ohm stability allows for reliable operation under heavy loads. Engineered for optimal performance, this amplifier features a MOSFET power supply and proprietary heat dissipation design, making it the perfect choice for audiophiles seeking superior sound in a compact form.

## Description

Product description PHF450D MONOBLOCK AMPLIFIER CAR AUDIO FULL RANGE AMP 1 .Level Controller： Controls the left and right channels output level 2 .Input： The RCA jacks allow for a low level Left and Right channel signal input.Simply connect to the source unit using RCA type audio cables,keeping them away from power wiring wherever possible to reduce riskof noise 3 .Remote Leve ： ControlThis port is for the remote level control. The control is intended to allowthe user tothelever of aain up tothe maximum adiustment lever set onthe amplifier. The control does not add additional boost, it onlyattenuates the setting that is fixed at the amplifier's controi panel. 4 .HPF Crossover Adjustment： Use the adiustment to select the crossover point. Remember that youmust adjust the High Pass position(HPF) as the HPF is alwaysengaged. The HPF is limited between 20Hz-20KHz. 5 .HPF Crossover Adjustment： Use the adiustment to select the crossover point. Remember that youmust adjust the High Pass position(HPF) as the HPF is alwaysengaged.The HPF is limited between 20Hz-20KHz. 6 .Hi Input Connector： High level inputs left and right to connect the amplifier to the radiosspeaker outputs. The amplifier automatically turns on as soon as asignal is received (AUTO TURN ON) 7 .Power Input Connections： These connections are for input power, chassis ground, and remote turn-on. 8 .Speaker Output Terminals： Connect yours peakers to these terminals. Stereo connections areconnected as labeled. Bridged connections use the LEFT+ andRIGHT- as the two connections. The mono blocks will run 2 ohmsmono! ONLY. 9 .Status LED's： These lights indicate when the amplifier is powered up normally andwhen there is a protection fault. The Protect LED is laminated whenthere is a problem with your amplifier. Digital Monoblock Specifications

Review: Incredible for the money - I have a mid-size crossover currently, had no sub from the factory. I'm a high end snob, I'm very much so into the clarity and accuracy of audio reproduction in the car-audio segment of things. I built a 1 1/4 cuft. box, slapped a nice woofer I had laying around into it, I set the gain and crossover with my D'Amore Engineering DD-1 and CC-1. I'm pushing this thing into a 2 ohm load, and let me tell you. With a good box, good woofer, good settings, and a good power supply, this thing absolutely slams. For reference, I had a similar setup with a Rockford Fosgate P300X1, which on a dyno makes around 300W burst into 2 ohms, this does the same for... a sixth the price? Now, that's all fine and dandy, but how's the audio quality? It's great, it's really great. I can't believe how clean the output is for how cheap this thing is. There's super low noise floor (noise that escapes the class D filtering and makes it to the output). It's absolutely shocking for the price, I really can't describe it any other way. I would appreciate the company producing this product, if they'd take this feedback, as these simple things would make this amplifier significantly better. 1. Power inputs should be larger, 8 AWG. 10AWG basically doesn't exist... 2. Remove the high pass crossover, make it only have a low pass. 3. Increase the jack size of the bass knob. The jack on the amplifier is smaller than on the bass knob. 4. Increase internal fuse size, and change ratings to include 1 ohm testing. This amplifier works fine at 1 ohm, gives me and others no problems at 1 ohm, even with 35A fuse. It would be nice if it was equipped for it from the factory, and it meets its rated power at 1 ohm! Extra details too; The company that makes this amp, ALSO makes "AUDIOZERONE" and they have the "PLINIUS" brand trademarked as well as the other, in the US. So these will likely be their brands going forward. They are a China based company, which in this case is a good thing, as they are a manufacturing company selling directly to the consumer, this means that they are able to sell at a significantly lower price than everyone else. From an engineering perspective; Overall looks good. There are a plethora of low-ESR capacitors inside the amplifier. They're of a cheaper brand, but this is alright in this case as it looks like for reliability purposes, they put way, way more than necessary. These also help reduce input and output noise. Notably though, the caps are rated to 50V, which means the power rail is likely running around 35-45V, which is very, very nice for an amp this small, as it helps it make a lot more power in a compact size. The power components are made by TSD semiconductor, a Beijing based company, very reputable for their quality too, which is a good indicator components were picked with the best ones where they matter. The output frequency filter is also of high quality, made by CODACA, it is a CPCF2919 model, high current type. Very, very good quality for the price, CODACA components are very good, usually not a known name due to them mostly being used for OEM applications. Thermals; Semiconductors are mounted to a common rail with thermal paste, this rail is then mounted to the case, lots of metal between the semiconductors and the atmosphere allows for more heat to be transferred directly into solid metal, this works well for high power applications. This is a low power, high efficiency application, the amplifier will literally never overheat unless you seal it in a thermally isolated box or an oven, or whatever equivalent you find out how to do in a car. What I'm trying to say is; you're going to have to really mess up or try to overheat this thing, very thermally efficient. This also bodes well for longevity, as it means all components will run cooler, and electrolytic capacitors love running cooler. Overall, very well built, very good sound quality, shocking price. I hope to see more from this company at this price point, as it will severely disrupt the market and make every manufacturer become more competitive.
Review: Compact and all I needed! - Powers my 10 inch home theater car subwoofer with the right amount of power. Easy to adjust gain controls and is powered by a 12 volt power supply I also reviewed on here. Great match of power, small and compact. Well worth the money. Sound quality is punch and perfect for my subwoofer. Took 10 minutes to install and works great!

## Features

- Car audio amplifier 450 watts RMS at 2-ohm load (14.4v); 300 watts RMS at 4-ohm load (14.4v);
- Class D - Power loss is significantly reduced making the amplifier highly efficient. Excess energy is stored until it’s needed instead of being converted into heat. Reduction in size/weight, reduced power waste, smaller heat sink, compact circuitry
- 2-4 Ohm Stable - Able to continuously power loads of 2-4 Ohm without encountering difficulties such as overheating. Typically made to power up subwoofers that demand the heavier power load requirements to be able to perform the way they were made to
- Engineered to be the most efficient car monoblock amplifier in its class so that you can get the most out of your vehicle’s electrical system
- MOSFET pulse width modulated power supply and proprietary heat dissipation design will ensure the amplifier for car subwoofers runs cool for even the most demanding playlists

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CB83DSJR |
| Best Sellers Rank | #165,666 in Electronics ( See Top 100 in Electronics ) #351 in Car Mono Amplifiers |
| Brand | PLINIUS |
| Brand Name | PLINIUS |
| Customer Reviews | 4.1 out of 5 stars 133 Reviews |
| Item Dimensions | 6.3 x 3.3 x 1.42 inches |
| Item dimensions L x W x H | 6.3 x 3.3 x 1.42 inches |
| Manufacturer | LKC |
| Maximum Supply Voltage | 14.4 Volts (DC) |
| Model | PHF450D |
| Mounting Type | Surface Mount |
| Number of Channels | 1 |
| Output Power | 450 Watts |
| Package Type Name | box" or "padded envelope |
| Part Number | 760646469448 |
| Voltage | 14.4 Volts |

## Product Details

- **Item dimensions L x W x H:** 6.3 x 3.3 x 1.42 inches
- **Manufacturer:** LKC
- **Maximum Supply Voltage:** 14.4 Volts (DC)
- **Mounting Type:** Surface Mount
- **Voltage:** 14.4 Volts

## Images

![Amplifier car Audio Monoblock Class D Compact Subwoofer Amplifier, 2/4 Ohm Stable, Low/High Level Inputs, Low Pass Crossover, Mosfet Power Supply - Image 1](https://m.media-amazon.com/images/I/71xzGFuqdLL.jpg)
![Amplifier car Audio Monoblock Class D Compact Subwoofer Amplifier, 2/4 Ohm Stable, Low/High Level Inputs, Low Pass Crossover, Mosfet Power Supply - Image 2](https://m.media-amazon.com/images/I/71Od-LI+q2L.jpg)
![Amplifier car Audio Monoblock Class D Compact Subwoofer Amplifier, 2/4 Ohm Stable, Low/High Level Inputs, Low Pass Crossover, Mosfet Power Supply - Image 3](https://m.media-amazon.com/images/I/71cwcOE0SAL.jpg)
![Amplifier car Audio Monoblock Class D Compact Subwoofer Amplifier, 2/4 Ohm Stable, Low/High Level Inputs, Low Pass Crossover, Mosfet Power Supply - Image 4](https://m.media-amazon.com/images/I/71YhRJOwvRL.jpg)
![Amplifier car Audio Monoblock Class D Compact Subwoofer Amplifier, 2/4 Ohm Stable, Low/High Level Inputs, Low Pass Crossover, Mosfet Power Supply - Image 5](https://m.media-amazon.com/images/I/713L7feOR9L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Incredible for the money
*by A***E on November 28, 2023*

I have a mid-size crossover currently, had no sub from the factory. I'm a high end snob, I'm very much so into the clarity and accuracy of audio reproduction in the car-audio segment of things. I built a 1 1/4 cuft. box, slapped a nice woofer I had laying around into it, I set the gain and crossover with my D'Amore Engineering DD-1 and CC-1. I'm pushing this thing into a 2 ohm load, and let me tell you. With a good box, good woofer, good settings, and a good power supply, this thing absolutely slams. For reference, I had a similar setup with a Rockford Fosgate P300X1, which on a dyno makes around 300W burst into 2 ohms, this does the same for... a sixth the price? Now, that's all fine and dandy, but how's the audio quality? It's great, it's really great. I can't believe how clean the output is for how cheap this thing is. There's super low noise floor (noise that escapes the class D filtering and makes it to the output). It's absolutely shocking for the price, I really can't describe it any other way. I would appreciate the company producing this product, if they'd take this feedback, as these simple things would make this amplifier significantly better. 1. Power inputs should be larger, 8 AWG. 10AWG basically doesn't exist... 2. Remove the high pass crossover, make it only have a low pass. 3. Increase the jack size of the bass knob. The jack on the amplifier is smaller than on the bass knob. 4. Increase internal fuse size, and change ratings to include 1 ohm testing. This amplifier works fine at 1 ohm, gives me and others no problems at 1 ohm, even with 35A fuse. It would be nice if it was equipped for it from the factory, and it meets its rated power at 1 ohm! Extra details too; The company that makes this amp, ALSO makes "AUDIOZERONE" and they have the "PLINIUS" brand trademarked as well as the other, in the US. So these will likely be their brands going forward. They are a China based company, which in this case is a good thing, as they are a manufacturing company selling directly to the consumer, this means that they are able to sell at a significantly lower price than everyone else. From an engineering perspective; Overall looks good. There are a plethora of low-ESR capacitors inside the amplifier. They're of a cheaper brand, but this is alright in this case as it looks like for reliability purposes, they put way, way more than necessary. These also help reduce input and output noise. Notably though, the caps are rated to 50V, which means the power rail is likely running around 35-45V, which is very, very nice for an amp this small, as it helps it make a lot more power in a compact size. The power components are made by TSD semiconductor, a Beijing based company, very reputable for their quality too, which is a good indicator components were picked with the best ones where they matter. The output frequency filter is also of high quality, made by CODACA, it is a CPCF2919 model, high current type. Very, very good quality for the price, CODACA components are very good, usually not a known name due to them mostly being used for OEM applications. Thermals; Semiconductors are mounted to a common rail with thermal paste, this rail is then mounted to the case, lots of metal between the semiconductors and the atmosphere allows for more heat to be transferred directly into solid metal, this works well for high power applications. This is a low power, high efficiency application, the amplifier will literally never overheat unless you seal it in a thermally isolated box or an oven, or whatever equivalent you find out how to do in a car. What I'm trying to say is; you're going to have to really mess up or try to overheat this thing, very thermally efficient. This also bodes well for longevity, as it means all components will run cooler, and electrolytic capacitors love running cooler. Overall, very well built, very good sound quality, shocking price. I hope to see more from this company at this price point, as it will severely disrupt the market and make every manufacturer become more competitive.

### ⭐⭐⭐⭐⭐ Compact and all I needed!
*by S***Y on July 29, 2025*

Powers my 10 inch home theater car subwoofer with the right amount of power. Easy to adjust gain controls and is powered by a 12 volt power supply I also reviewed on here. Great match of power, small and compact. Well worth the money. Sound quality is punch and perfect for my subwoofer. Took 10 minutes to install and works great!

### ⭐⭐⭐⭐ Good for now.
*by J***A on October 11, 2025*

Just installed today so we’ll see how long it last. Hits my 12” really hard and I only have the bass knob up half way and this sub was used on a different and bigger amp also. Used with a factory radio and with a kicker line out converter with the auto on feature with rca cables. Has plenty of power and output and didnt try the amp inputs because I already had this setup. Make sure to play around with the knobs I think all the way to the left was the setting for a sub high and low frequency.

## Frequently Bought Together

- Amplifier car Audio Monoblock Class D Compact Subwoofer Amplifier, 2/4 Ohm Stable, Low/High Level Inputs, Low Pass Crossover, Mosfet Power Supply
- BOSS Audio Systems KIT2 8 Gauge Complete Car Amplifier Installation Wiring Kit with Power Cables, Ground Cables, Turn-On Wire, Speaker Wire, Terminals
- Kicker 46KISLOC2 K-Series Stereo Line-Output Converter w/Remote Turn-On Output

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.in/products/547597631-amplifier-car-audio-monoblock-class-d-compact-subwoofer-amplifier-2](https://www.desertcart.in/products/547597631-amplifier-car-audio-monoblock-class-d-compact-subwoofer-amplifier-2)

---

*Product available on Desertcart India*
*Store origin: IN*
*Last updated: 2026-05-08*