--- product_id: 39184640 title: "12AU7 Preamp Vacuum Tube, Single" brand: "mullard" price: "₨22053" currency: LKR in_stock: true reviews_count: 13 category: "Mullard" url: https://www.desertcart.lk/products/39184640-12au7-preamp-vacuum-tube-single store_origin: LK region: Sri Lanka --- # Reduces compression by ~20% Optimized for Hi-Fi amps & guitars Low noise for pristine sound 12AU7 Preamp Vacuum Tube, Single **Brand:** mullard **Price:** ₨22053 **Availability:** βœ… In Stock ## Summary > 🎢 Elevate your amp’s voice β€” hear every nuance, feel every vibe. ## Quick Answers - **What is this?** 12AU7 Preamp Vacuum Tube, Single by mullard - **How much does it cost?** ₨22053 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/39184640-12au7-preamp-vacuum-tube-single) ## 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 - β€’ **Tone Tailored:** Smooths out harsh fizz while preserving dynamic distortion for that perfect edge. - β€’ **Crystal-Clear Audio:** Experience ultra-low noise and microphonics for flawless sound clarity. - β€’ **Amp Upgrade Essential:** Perfectly balances gain and compression in Hi-Fi and guitar amps. - β€’ **Pro-Grade Compatibility:** Seamlessly fits into your Marshall, Fender Hotrod, and other premium amps. - β€’ **Trusted Classic Reissue:** Mullard’s legendary 12AU7 design, revered by audiophiles and pros alike. ## Overview The Mullard 12AU7 Preamp Vacuum Tube is a high-quality reissue designed for audiophiles and guitarists seeking low noise and minimal microphonics. It reduces compression by approximately 20%, delivering a balanced, dynamic tone ideal for Hi-Fi and guitar amplifiers like Marshall DSL1 and Fender Hotrod. With a strong reputation and a 4.4-star rating, this tube is a trusted upgrade for professional and enthusiast musicians alike. ## Description The Mullard 12AU7/ECC82 reissue is a great 12AU7 tube. This tube has low noise and low microphonics. A great tube for Hi-Fi amps and microphones. Review: Marshall DSL1Tube upgrade - I bought this 12au7 a 12AT7 and two new 12AX7's to replace the stock tubes on my Marshall DSL1H. Going purely off of reviews i wanted to try to make the gain more usable and and reduce the compression a bit. 1- the 12AT7 turned out to be to much of a power loss i dont recommend. 2- I put the stock 12AU7 back in with the mullard 12AX7's and it still had decent compression and some of the fizzy gain the stock marshall tubes produce. 3- I put in the mullard 12au7 wich removed the compression almost complestely and reduced the gain by about 20% making it more usable across the range. That said i think i liked the marshall 12au7 along with the mullard 12ax7 combination the best it has a nice compression cranked and a nice distortion to my ear it is a very nice inbetween compromise. I highly recommend trying the stock 12au7 for the power amp and the mullard 12ax7s in the pre amp for a nice balanced tone that still rips when you want. Hope this helps. Review: Great for a Hotrod amp - Very nice, it helps to balance the output of a Fender Hotrod amp ## Features - Great sounding tube - Low noise and mircophonics ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #15,060 in Musical Instruments ( See Top 100 in Musical Instruments ) #25 in Guitar Amplifier Tubes | | Customer Reviews | 4.4 out of 5 stars 121 Reviews | ## Images ![12AU7 Preamp Vacuum Tube, Single - Image 1](https://m.media-amazon.com/images/I/71O0BKB32tL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Marshall DSL1Tube upgrade *by C***G on January 4, 2026* I bought this 12au7 a 12AT7 and two new 12AX7's to replace the stock tubes on my Marshall DSL1H. Going purely off of reviews i wanted to try to make the gain more usable and and reduce the compression a bit. 1- the 12AT7 turned out to be to much of a power loss i dont recommend. 2- I put the stock 12AU7 back in with the mullard 12AX7's and it still had decent compression and some of the fizzy gain the stock marshall tubes produce. 3- I put in the mullard 12au7 wich removed the compression almost complestely and reduced the gain by about 20% making it more usable across the range. That said i think i liked the marshall 12au7 along with the mullard 12ax7 combination the best it has a nice compression cranked and a nice distortion to my ear it is a very nice inbetween compromise. I highly recommend trying the stock 12au7 for the power amp and the mullard 12ax7s in the pre amp for a nice balanced tone that still rips when you want. Hope this helps. ### ⭐⭐⭐⭐⭐ Great for a Hotrod amp *by J***Z on November 7, 2025* Very nice, it helps to balance the output of a Fender Hotrod amp ### ⭐⭐⭐⭐⭐ Tubes work great. Would by again. *by J***O on May 11, 2025* The Mullard tubes were a definite step up from the stock core tubes on the Gremlin amp. And I liked the stock core tubes. But the Mullards are step up in every way. They have that tube warmth and very full deep base. The sound stage is better as well. The highs are good and dynamic when need be. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.lk/products/39184640-12au7-preamp-vacuum-tube-single](https://www.desertcart.lk/products/39184640-12au7-preamp-vacuum-tube-single) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-07-30*