Mullard
0 ratings
Mullard CV4004 / 12AX7, Matched Quad
genuine image
Mullard CV4004 / 12AX7, Matched Quad
The CV4004/12AX7 is a high gain, low noise valve with a short plate structure for reduced microphonics, making it perfect for high gain Marshall pre-amplifier circuits.
Mullard CV4004 / 12AX7, Matched Quad
Item #: 6117359

Mullard CV4004 / 12AX7, Matched Quad

Item #: 6117359

USD 134

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

0 ratings Write a review
In stock
us Imported from USA store

QTY:

Order now and get it around Thursday, September 10
Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

Our Top Logistics Partners
  • fedex
  • dhl
The CV4004/12AX7 is a high gain, low noise valve with a short plate structure for reduced microphonics, making it perfect for high gain Marshall pre-amplifier circuits.
U-Care Warranty:
None
Select a Plan
fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified

paypal payment
visa payment
mastercard payment
Note: Step 1 Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

High Fidelity
The CV4004 / 12AX7 tubes are designed to deliver superior sound quality, enhancing your audio experience with clear highs and smooth lows, preferred by audiophiles and professional musicians alike.
Matched Quad
This matched quad set ensures consistency in performance and tone across all tubes, making it ideal for demanding applications and ensuring reliable operation in amplifiers and recording equipment.
Durability
Crafted with high-quality materials, these tubes provide exceptional longevity and resistance to wear, ensuring you get the most value over time without compromising on sound performance and reliability.

Product Details

Shop the Mullard CV4004 12AX7 at Ubuy Turks and Caicos, a Turks and Caicos. Enjoy high gain, low noise performance with matched quad tubes, perfect for guitar amps and Marshall style amplifiers.
Compatible DevicesGuitar
Output Wattage400 watts
Power SourceCorded Electric
Output Channel Quantity1
Amplifier TypeTube
Connector TypeRCA
ColorBlack
BrandMullard
Model NameCV4004 / 12AX7
UPC735757043689
ManufacturerMullard
Model NumberCV4004 / 12AX7
Mfr Part NumberCV4004 / 12AX7
Item Weight1.5 lbs (680 grams)

Who Should Buy?

Suitable For
  • Professional Musicians

    Ideal for musicians seeking high-quality sound in guitar amplifiers or pedals, enhancing overall tone and performance.

  • Audio Engineers

    Perfect for audio professionals looking for reliable and consistent tube performance in recording or live sound setups.

  • Tube Enthusiasts

    Great for hobbyists and enthusiasts who appreciate vintage sound and often upgrade their amplifier or audio equipment.

Not Suitable For
  • Budget Buyers

    May not suit those with strict budget constraints, as matched quads can be pricier than standard tubes.

Product Description

Mullard CV4004 / 12AX7, Matched Quad

About This Item

Product Title: Mullard CV4004 12AX7, Matched Quad The Mullard CV4004 12AX7 Matched Quad is the perfect solution for guitar enthusiasts and musicians who demand exceptional performance from their amplifiers. Designed with a high gain and low noise valve, this matched quad offers enhanced sound quality and reduced microphonics for a truly immersive experience. The short plate structure of the Mullard CV4004 12AX7 ensures minimal noise interference, making it an excellent choice for high gain Marshall pre-amplifier circuits. Whether you're practicing at home or performing on stage, this tube delivers impeccable sound clarity and eliminates any unwanted distortion. What sets the Mullard CV4004 12AX7 Matched Quad apart is its precise matching for both gain and conductance.

This ensures that each tube in the quad performs consistently, resulting in balanced tones and harmonics across all channels. Whether you're playing rhythm or lead, the Mullard CV4004 12AX7 will deliver the same exceptional performance every time. The reduced microphonics of the short plate design is particularly beneficial for combo amps, where vibrations can often cause unwanted feedback. With the Mullard CV4004 12AX7, you can confidently push your amplifier to its limits without worrying about any unwanted noise or interference. Mullard is renowned for its exceptional craftsmanship and attention to detail, and the CV4004 12AX7 is no exception.

This tube is carefully engineered to meet the highest standards, ensuring exceptional reliability and longevity. Invest in the Mullard CV4004 12AX7 Matched Quad for a seamless and unforgettable musical experience. Whether you're a professional guitarist or an avid hobbyist, the Mullard CV4004 12AX7 Matched Quad is the ultimate choice for any guitar amplifier. Experience the timeless tone and performance that Mullard is known for.

Order your matched quad today and elevate your music to new heights. Keywords: Mullard CV4004, Mullard CV4004 12AX7, Mullard CV4004 Matched Quad, Mullard CV4004 tube, Mullard CV4004 12AX7 tube, Mullard CV4004 Matched Quad tubes, Mullard CV4004 review, Mullard CV4004 12AX7 review, Mullard CV4004 Matched Quad review, Mullard CV4004 for sale, Mullard CV4004 12AX7 for sale, Mullard CV4004 Matched Quad for sale, Mullard CV4004 price, Mullard CV4004 12AX7 price, Mullard CV4004 Matched Quad price, Mullard CV4004 datasheet, Mullard CV4004 12AX7 datasheet, Mullard CV4004 Matched Quad datasheet, Mullard CV4004 specifications, Mullard CV4004 12AX7 specifications, Mullard CV4004 Matched Quad specifications.

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the CV4004 12AX7, Matched Quad?

    Answer: The CV4004 12AX7, Matched Quad, is a set of four high-quality vacuum tubes known for their exceptional performance in audio applications. These tubes are specifically designed to amplify audio signals, making them a popular choice for musicians, audiophiles, and sound engineers. The 'matched quad' designation indicates that all four tubes have similar electrical characteristics, ensuring balanced and consistent performance when used together in amplifiers or effects pedals. This makes the CV4004 an ideal choice for those seeking a reliable and superior sound experience.
  • Question: Why are matched tubes important for audio equipment?

    Answer: Matched tubes are crucial for audio equipment because they ensure uniform gain and tonal balance across channels. When tubes share similar specifications, such as transconductance and plate current, it leads to reduced distortion and a more cohesive sound reproduction. This is particularly significant in stereo setups, where mismatched tubes can result in an uneven audio experience. Musicians and sound engineers often choose matched sets like the CV4004 12AX7 for optimal performance in their amplifiers and recording gear, allowing them to maintain a rich and harmonically balanced sound.
  • Question: What applications are best suited for the CV4004 12AX7 tubes?

    Answer: The CV4004 12AX7 tubes are best suited for various audio applications, particularly in guitar amplifiers, phono preamps, and high-fidelity audio systems. Their design is optimized for high gain, making them ideal for situations where clear and powerful sound amplification is necessary. Additionally, they are favored in recording setups for their ability to preserve the nuances of sound, making them essential for both live performances and studio recording. Using CV4004 tubes in these scenarios helps achieve a richer tonal quality and enhanced audio clarity.
  • Question: How do the CV4004 tubes compare to standard 12AX7 tubes?

    Answer: The CV4004 tubes are often regarded as superior to standard 12AX7 tubes due to their stringent manufacturing standards and improved performance characteristics. They typically exhibit lower noise levels, greater durability, and enhanced audio fidelity. While both types of tubes serve similar purposes, CV4004 tubes are specifically built for high-performance applications, making them a preferred choice among professional musicians and audio professionals. This means users can expect a more reliable and pleasing sound quality from the CV4004 compared to standard counterparts.
  • Question: Can I use CV4004 tubes in all audio equipment?

    Answer: While the CV4004 tubes are highly versatile, it's essential to check your audio equipment's specifications to ensure compatibility. The CV4004 is a type of 12AX7 tube, which means it can replace any standard 12AX7 tube, but certain amplifiers may have unique requirements for tube type or impedance. Incompatible voltages or configurations might lead to suboptimal performance or even damage. It's wise to consult your equipment manual or reach out to the manufacturer before making a switch to the CV4004 tubes to ensure a seamless integration into your audio setup.
  • Question: How do I care for and maintain my CV4004 tubes?

    Answer: Caring for your CV4004 tubes involves ensuring they are operated within their specified limits and maintaining a clean operating environment. Avoid excessive heat and ensure adequate ventilation around the tubes during use. Regularly check for signs of wear, such as discoloration or artifacts in sound. Handling tubes carefully and ensuring connections are secure can also extend their lifespan. Additionally, using quality gear that pairs well with these tubes contributes to their longevity, reassuring users of consistent sound quality over time.
  • Question: What should I look for when buying CV4004 12AX7 tubes?

    Answer: When purchasing CV4004 12AX7 tubes, look for reputable sellers to ensure you receive authentic and high-quality products. Check for specifications that confirm they are matched quads, as this guarantees uniformity and performance consistency. It's also beneficial to review user feedback to gauge long-term reliability and sound quality experiences. Lastly, consider the manufacturer's history and reputation in tube manufacturing, as established names usually offer more dependable and robust options for your audio needs.
  • Question: Are CV4004 tubes good for home audio systems?

    Answer: Yes, CV4004 tubes are excellent for home audio systems. They provide high gain and clarity, making them an outstanding choice for phono preamps and tube amplifiers, ensuring that your sound system delivers a rich and immersive audio experience. Users often note improved dynamics and details in their music, allowing for a more enjoyable listening experience. In home setups, switching to CV4004 tubes can enhance overall sound quality, making your music and movies more vibrant and lifelike.
  • Question: Where can I buy CV4004 12AX7, Matched Quad in Turks and Caicos?

    Answer: You can buy CV4004 12AX7, Matched Quad from Ubuy in Turks and Caicos. Ubuy offers a wide selection of quality vacuum tubes, including matched quads, making it a reliable choice for sourcing your audio components. You can explore their collection and find the specific tubes you need for your audio equipment.
  • Question: What brands are known for producing reliable CV4004 tubes?

    Answer: Several trusted brands are known for producing reliable CV4004 tubes, including Sovtek, JJ Electronics, and Tung-Sol. Each of these brands has a strong reputation for quality and performance in the realm of audio tubes. They utilize high-grade materials and advanced manufacturing techniques to ensure their products meet the demands of professional audio applications. Users frequently report satisfaction with the sound quality and durability of tubes from these manufacturers, making them popular choices among audiophiles and musicians alike.

Mullard Tubes CV4004 / 12AX7 Editorial Review

The Mullard CV4004 / 12AX7, Matched Quad has received positive customer feedback for its competitive pricing, outstanding service, and fast delivery. The tubes have been noted to sound great in a Marshall DSL40C amp, providing an upgrade over stock tubes. Customers have appreciated the high-quality tubes at a fair price and the prompt delivery. Overall, customers seem satisfied with the product and the customer service provided by the seller.

Customer Reviews & Ratings

1 customers ratings
  • 5 Star
    100%
  • 4 Star
    0%
  • 3 Star
    0%
  • 2 Star
    0%
  • 1 Star
    0%

Review this product

Share your thoughts with other customers

Pros

  • Competitive pricing
  • High-quality tubes
  • Prompt delivery

Cons

  • No negative feedback mentioned

Platform Trust & Buyer Confidence

trustpilot logo
4.2/5 9250 + reviews
Read reviews
MA
Mohammad
Verified buyer

“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”

23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer

“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”

22-Jul-26 · via Trustpilot
K
kund
Verified buyer

“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”

23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer

“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”

22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer

“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”

23 July 2026 · via Trustpilot
Secure Checkout Global Delivery Easy Returns Genuine Products

Product Price History

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

USD 134

Order now and get it around Thursday, September 10

QTY:

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • Ideal for high gain Marshall pre-amplifier circuits
  • Low noise valve with a short plate structure
  • Reduced microphonics for combo amps
  • Matched Quad for both gain and conductance
  • High gain makes it great for guitar amps
  • Suitable for use in Marshall style amps

Ubuy Assurance

Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.