---
product_id: 357561707
title: "Mullard CV4004 / 12AX7, Matched Pair"
brand: "mullard"
price: "1109 kr"
currency: NOK
in_stock: true
reviews_count: 6
category: "Mullard"
url: https://www.desertcart.no/products/357561707-mullard-cv4004-12ax7-matched-pair
store_origin: NO
region: Norway
---

# 400W output power Optimized for guitar amps Low noise & reduced microphonics Mullard CV4004 / 12AX7, Matched Pair

**Brand:** mullard
**Price:** 1109 kr
**Availability:** ✅ In Stock

## Summary

> 🎸 Elevate your amp game with Mullard’s legendary matched pair!

## Quick Answers

- **What is this?** Mullard CV4004 / 12AX7, Matched Pair by mullard
- **How much does it cost?** 1109 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/357561707-mullard-cv4004-12ax7-matched-pair)

## Best For

- mullard enthusiasts

## Why This Product

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

## Key Features

- • **Marshall Amp Ready:** Engineered to elevate classic high-gain Marshall circuits
- • **Short Plate Design:** Minimizes microphonics—perfect for combo amps
- • **High Gain, Low Noise:** Delivers powerful, clear amplification without unwanted hiss
- • **Lightweight & Durable:** Metal enclosure weighing just 0.08 lbs for reliable performance
- • **Precision Matched Pair:** Consistent gain and conductance for flawless tone

## Overview

The Mullard CV4004 / 12AX7 matched pair is a high-gain, low-noise vacuum tube designed specifically for guitar amplifiers, especially Marshall-style preamps. Featuring a short plate structure to reduce microphonics, these tubes deliver 400 watts of output power with consistent gain and conductance, ensuring superior tonal clarity and reliability for professional musicians and audiophiles alike.

## Description

The CV4004/12AX7 is a high gain, low noise valve with a short plate structure for reduced microphonics. Excellent for use in high gain Marshall pre-amplifier circuits where noise and microphonics can be a problem. Best for guitar amps. Mullard CV4004 / 12AX7, Matched PairThe CV4004/12AX7 is a high gain low noise valve with a short plate structure for reduced microphonics. Excellent for use in high gain Marshall pre-amplifier circuits where noise and microphonics can be a problem. Best for guitar amps. ;.

Review: very good transaction - great product
Review: Great product and shipping - Excellent quality tubes. Had to replace the tubes in my amp and these did the trick! Shipping was phenomenally fast! Overall, a great product at a reasonable price. Will certainly purchase again if I ever need tubes for my other amps.

## Features

- Matched Pair
- Matched for both gain and conductance
- Short plate allowing for reduced microphonics (great for combo amps)
- High gain and low noise tube
- Great for use in Marshall style amps
- Short plate, allowing for reduced microphonics (great for combo amps)
- Brand: Mullard
- Compatible devices: Guitar
- Output wattage: 400.0 watts
- Power source type: AC adapter

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01J0HHXF8 |
| Amplifier Type | Tube |
| Brand | Mullard |
| Color | clear |
| Colour | clear |
| Compatible Devices | Guitar |
| Compatible devices | Guitar |
| Connector Type | 6.35mm Jack |
| Customer Reviews | 4.8 out of 5 stars 51 Reviews |
| Enclosure Material | Metal |
| Item Weight | 0.08 Pounds |
| Item weight | 0.08 Pounds |
| Manufacturer | Mullard |
| Material | Metal |
| Mfr Part Number | CV4004 / 12AX7 |
| Model Name | CV4004 |
| Model Number | CV4004 / 12AX7 |
| Output Channel Quantity | 1 |
| Output Wattage | 400 Watts |
| Output wattage | 400 Watts |
| Power Source | AC adapter |
| UPC | 735757043665 |

## Product Details

- **Brand:** Mullard
- **Compatible devices:** Guitar
- **Output wattage:** 400 Watts
- **Item weight:** 0.08 Pounds
- **Model name:** CV4004

## Images

![Mullard CV4004 / 12AX7, Matched Pair - Image 1](https://m.media-amazon.com/images/I/61t1PsVECBL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ very good transaction
*by J***I on 12 May 2024*

great product

### ⭐⭐⭐⭐⭐ Great product and shipping
*by J***A on 7 June 2023*

Excellent quality tubes. Had to replace the tubes in my amp and these did the trick! Shipping was phenomenally fast! Overall, a great product at a reasonable price. Will certainly purchase again if I ever need tubes for my other amps.

### ⭐⭐⭐⭐⭐ Item arrived as described.
*by J***E on 1 September 2026*

Item arrived as described.

## Frequently Bought Together

- Mullard CV4004 / 12AX7, Matched Pair
- Mullard 12AT7, Matched Pair

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---

*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-09-22*