---
product_id: 74080676
title: "PRIMUS-3000A Primus 1-Channel, 250w X 1 Subwoofer Amplifier"
brand: "infinity"
price: "€ 203.08"
currency: EUR
in_stock: true
reviews_count: 11
category: "Infinity"
url: https://www.desertcart.hr/products/74080676-primus-3000a-primus-1-channel-250w-x-1-subwoofer-amplifier
store_origin: HR
region: Croatia
---

# 300W RMS power at 2Ω Variable low-pass filter 32-320Hz Adjustable bass boost & phase PRIMUS-3000A Primus 1-Channel, 250w X 1 Subwoofer Amplifier

**Brand:** infinity
**Price:** € 203.08
**Availability:** ✅ In Stock

## Summary

> 🎵 Unleash the bass beast – because your ride deserves to be heard!

## Quick Answers

- **What is this?** PRIMUS-3000A Primus 1-Channel, 250w X 1 Subwoofer Amplifier by infinity
- **How much does it cost?** € 203.08 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/74080676-primus-3000a-primus-1-channel-250w-x-1-subwoofer-amplifier)

## Best For

- infinity enthusiasts

## Why This Product

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

## Key Features

- • **Phase Perfected:** 0-180° phase adjustment guarantees seamless integration with your existing audio setup for flawless soundstage.
- • **Pure Power Punch:** Delivers a clean 300 watts RMS at 2 ohms for deep, room-shaking bass that commands attention.
- • **Tailor Your Tone:** Variable low-pass filter (32-320 Hz) lets you sculpt your subwoofer’s sound to perfection.
- • **Bass Boost Brilliance:** Adjustable 0-12 dB bass boost at 40-100 Hz ensures your beats hit harder when it matters most.
- • **Trusted Quality Inside:** Crafted by Harman, a Samsung subsidiary, this amp combines premium engineering with reliable performance.

## Overview

The Infinity PRIMUS-3000A is a 1-channel subwoofer amplifier delivering 300 watts RMS at 2 ohms, featuring a variable low-pass filter, bass boost, and phase adjustment. Engineered by Harman, it offers reliable, cool-running performance ideal for upgrading factory subwoofers with precision sound control.

## Description

Value engineered amps provide consumer access to Infinity performance for entry level applications and limited budgets

Review: Great for replacing stock toyota jbl subwoofer - I am running this amp at 2 ohm to a dual voice coil 8 inch sub (replacing toyota 4runner JBL OEM subwoofer/amp) and it does what it says! At first had problems with it going into power protection when turned up, but found out I accidentally wired the sub to 8ohm not 2ohm. Once fixed it pushes clean powerful sound at the rated wattage. Also came to find out this is actually made by the high end Harmon brand, Harman Kardon is a division of US-based Harman International Industries, a subsidiary of Samsung Electronics. So this is a quality made unit. Does not get hot mounted under the passager seat and ran cool on my last 4hr road trip. Highly reccomend for this wattage. For higher power (500w rms) look at MTX or Rockford fosgate for only a little more money.
Review: Loved it - Kick ass product. Loved it

## Features

- mono subwoofer amplifier
- 300 watts RMS x 1 at 2 ohms ( 4-ohm rating unavailable)
- variable low-pass filter (32-320 Hz, 12 dB/octave)
- variable bass boost (0-12 dB at 40-100 Hz)
- variable phase adjustment (0-180°)
- preamp and speaker-level inputs
- fuse rating: 15A x 2
- wiring and hardware not included with amplifier

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07F1TWJRV |
| Best Sellers Rank | #283,492 in Electronics ( See Top 100 in Electronics ) #650 in Car Multichannel Amplifiers |
| Brand | Infinity |
| Customer Reviews | 3.8 3.8 out of 5 stars (37) |
| Date First Available | June 26, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.5 pounds |
| Item dimensions L x W x H | 3.74 x 12.32 x 7.48 inches |
| Item model number | PRIMUS-3000A |
| Manufacturer | HARMAN |
| Material | Metal, Electronic Components |
| Maximum Supply Voltage | 14.4 Volts |
| Mounting Type | Surface Mount |
| Number of Channels | 1 |
| Other display features | Wireless |
| Output Power | 300 Watts |
| Package Type Name | box |
| Product Dimensions | 3.74 x 12.32 x 7.48 inches |
| UPC | 050667372798 |
| Voltage | 14.4 Volts |
| Whats in the box | Amplifier |

## Product Details

- **Item dimensions L x W x H:** 3.74 x 12.32 x 7.48 inches
- **Manufacturer:** HARMAN
- **Maximum Supply Voltage:** 14.4 Volts
- **Mounting Type:** Surface Mount
- **Voltage:** 14.4 Volts

## Images

![PRIMUS-3000A Primus 1-Channel, 250w X 1 Subwoofer Amplifier - Image 1](https://m.media-amazon.com/images/I/61A5AyQQBLL.jpg)

## Questions & Answers

**Q: 25hz subwoofer  will this amp output 25 to 200hz?  or only 32hz and up.  i have a subwoofer that's 25hz**
A: It will not output lower than 32 hz according to the specifications (32-320). Running a subwoofer that is able to hit 25 hz with this amp will not be an issue, unless you are aiming for that 25 hz for some reason.

**Q: What is the actual amp for sale?  The add says its for a primus 3000a amp but looking at the picture it showsa primus 3001a which one is it?**
A: The amp is the 3000a model. I looked it up and the picture shows 3001a. I think that is because this is a 1 channel amp. It is listed as the 3000a model. 300 watts RMS 600 watts Peak Max output. Great amp for the size and price, Kai!

**Q: What are the actual dimensions of the Primus 3000A?**
A: 2in H x 5.7in W x 9.6in L

**Q: Is this amp stable at 4 ohms? There is only a 2 ohm wattage**
A: The spec sheet says "N/A" for 4 ohm operation, 300W at 2 ohms. Either contact Infinity with your question, or stick with 2 ohm operation.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for replacing stock toyota jbl subwoofer
*by F***N on August 30, 2021*

I am running this amp at 2 ohm to a dual voice coil 8 inch sub (replacing toyota 4runner JBL OEM subwoofer/amp) and it does what it says! At first had problems with it going into power protection when turned up, but found out I accidentally wired the sub to 8ohm not 2ohm. Once fixed it pushes clean powerful sound at the rated wattage. Also came to find out this is actually made by the high end Harmon brand, Harman Kardon is a division of US-based Harman International Industries, a subsidiary of Samsung Electronics. So this is a quality made unit. Does not get hot mounted under the passager seat and ran cool on my last 4hr road trip. Highly reccomend for this wattage. For higher power (500w rms) look at MTX or Rockford fosgate for only a little more money.

### ⭐⭐⭐⭐⭐ Loved it
*by B***L on March 20, 2025*

Kick ass product. Loved it

### ⭐⭐⭐⭐⭐ Compact but packs a good and clean punch
*by D***G on June 9, 2021*

This amp exceeded my expectations! I was just looking for a cheap amp to power an old JL 12W6v2-D4 I had sitting in my garage. My plan was to install an amp small enough to hide under the trunk floor to add bass to my stock head unit so I purchased a high-output line converter only to realize that this amp has that feature built in! It was great to skip a step without having to run extra RCA wires. My subwoofer is rated to handle 600 RMS @ 2 ohms so I was a little worried that this would under power it but it ended up to be just right. The combo actually still hits very hard and clean without overbearing the stock speakers. I'm glad I went with this amp plus it was very affordable to get some extra bass on the cheap.

## Frequently Bought Together

- Infinity PRIMUS-3000A Primus 1-Channel, 250w X 1 Subwoofer Amplifier
- BOSS Audio Systems KIT2 8 Gauge Complete Car Amplifier Installation Wiring Kit with Power Cables, Ground Cables, Turn-On Wire, Speaker Wire, Terminals
- Infinity REF1000S Reference 10 Inch Low Profile Subwoofer with SSI (Selectable Smart Impedance)

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**Shop now:** [https://www.desertcart.hr/products/74080676-primus-3000a-primus-1-channel-250w-x-1-subwoofer-amplifier](https://www.desertcart.hr/products/74080676-primus-3000a-primus-1-channel-250w-x-1-subwoofer-amplifier)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-01-22*