---
product_id: 14302794
title: "KEMO M040N Preamplifier Module"
brand: "best price square"
price: "$2"
currency: NZD
in_stock: false
reviews_count: 13
url: https://www.desertcart.nz/products/14302794-kemo-m040n-preamplifier-module
store_origin: NZ
region: New Zealand
---

# 0.98 x 0.87 x 0.67 in dimensions 1 battery required 0.01 oz weight KEMO M040N Preamplifier Module

**Brand:** best price square
**Price:** $2
**Availability:** ❌ Out of Stock

## Summary

> 🎤 Elevate Your Sound Game!

## Quick Answers

- **What is this?** KEMO M040N Preamplifier Module by best price square
- **How much does it cost?** $2 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/14302794-kemo-m040n-preamplifier-module)

## Best For

- best price square enthusiasts

## Why This Product

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

## Key Features

- • **User-Friendly:** No complex setup—just plug and play!
- • **Seamless Pairing:** Combine with Kemo amplifiers for a mini PA system.
- • **Compact Powerhouse:** Transform mic-level signals effortlessly!
- • **Lightweight Design:** Weighs just 0.01 ounces for ultimate portability.
- • **Versatile Integration:** Easily fits into various projects.

## Overview

The KEMO M040N Preamplifier Module is a lightweight and compact solution designed to boost mic-level signals to line-level, making it an ideal choice for various audio projects. With dimensions of just 0.98 x 0.87 x 0.67 inches, it can be easily integrated into your existing setups, especially when paired with Kemo amplifier modules for a streamlined PA system.

## Description

Buy KEMO M040N Preamplifier Module: Preamplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Works Great - over 250 hours on 9 volt battery - Works great, easy to use. I have verified it draws less than 2ma so a 9 volt Alkaline battery will run this preamp for 250+ hours. My Application: I drive my late model Audi in Audi Club track events. They require that all windows be open for safety crew access. The late model Audi exhaust and engine noise is so low that you can't hear the engine with all the wind noise at high speeds . . so you can't use engine sound to manage your rpm and shift points on a road race course. So I have this preamp under the hood of my car with a lapel microphone picking up the turbo-charger noise and feeding the amplified signal into my vehicle's stereo system which has aux plug in the glove compartment for a phone interface. It works great. The lower power consumption is perfect for 9 volt battery operation.
Review: Works great with 9V battery and very easy to hookup. - This pre-amp worked great for my dynamic microphone and only needs a 9V battery. The directions and wiring were very easy to follow.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003A5RCM6 |
| Customer Reviews | 4.3 4.3 out of 5 stars (31) |
| Date First Available | August 7, 2012 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.64 ounces |
| Item model number | M040N_SML |
| Product Dimensions | 0.98 x 0.87 x 0.67 inches |
| Wireless Remote | No |

## Product Details

- **Audio Encoding:** Mono
- **Audio Output Mode:** Stereo
- **Audio Output Type:** Speakers
- **Brand:** Best Price Square
- **Compatible Devices:** Speaker
- **Connectivity Technology:** XLR
- **Connector Type:** 3.5mm Jack or RCA
- **Item Weight:** 0.04 Pounds
- **Number of Channels:** 2
- **Special Feature:** Equalizer

## Images

![KEMO M040N Preamplifier Module - Image 1](https://m.media-amazon.com/images/I/51V4fr7oIQL.jpg)

## Questions & Answers

**Q: How is power connected to the unit?**
A: Connect the DC positive to the  + wire and connect the ground to the  - wire.

**Q: Does anybody know if a 5V power supply will make this work?**
A: 9-24V is what is specified.

**Q: what is the khz range of the kemo m040n preamplifier module?**
A: 20 - 20.000 Hz ±3 dB Per factory data sheet

**Q: Is output level higher with 18 volt battery instead of 9 volts ?   or does it have a built in Voltage Regulator**
A: 9 volt only gets hot after 12v and up

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works Great - over 250 hours on 9 volt battery
*by S***A on November 7, 2015*

Works great, easy to use. I have verified it draws less than 2ma so a 9 volt Alkaline battery will run this preamp for 250+ hours. My Application: I drive my late model Audi in Audi Club track events. They require that all windows be open for safety crew access. The late model Audi exhaust and engine noise is so low that you can't hear the engine with all the wind noise at high speeds . . so you can't use engine sound to manage your rpm and shift points on a road race course. So I have this preamp under the hood of my car with a lapel microphone picking up the turbo-charger noise and feeding the amplified signal into my vehicle's stereo system which has aux plug in the glove compartment for a phone interface. It works great. The lower power consumption is perfect for 9 volt battery operation.

### ⭐⭐⭐⭐⭐ Works great with 9V battery and very easy to hookup.
*by W***N on October 9, 2016*

This pre-amp worked great for my dynamic microphone and only needs a 9V battery. The directions and wiring were very easy to follow.

### ⭐⭐⭐ The shared ground is a problem...
*by P***T on November 9, 2020*

So, this preamp does work, but I couldn't use it because of the shared ground wire between the positive voltage and the microphone input. The output of this was supposed to be in the input to a signal processor, but, I couldn't run them both off the same power supply because the preamp was tuning in a local radio station.

## Frequently Bought Together

- KEMO M040N Preamplifier Module
- Ultrasonic Signal Generator Module

---

## 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.nz/products/14302794-kemo-m040n-preamplifier-module](https://www.desertcart.nz/products/14302794-kemo-m040n-preamplifier-module)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-15*