---
product_id: 2518030
title: "Sovtek 12AX7LPS Vacuum Tube (Original Version)"
brand: "sovtek"
price: "€ 37.64"
currency: EUR
in_stock: true
reviews_count: 8
category: "Sovtek"
url: https://www.desertcart.ie/products/2518030-sovtek-12ax7lps-vacuum-tube-original-version
store_origin: IE
region: Ireland
---

# Amplification Factor 100 for high gain Long Plate Spiral filament reduces hum 9-pin miniature preamp tube Sovtek 12AX7LPS Vacuum Tube (Original Version)

**Brand:** sovtek
**Price:** € 37.64
**Availability:** ✅ In Stock

## Summary

> 🎶 Unlock the secret sauce of legendary tone with Sovtek 12AX7LPS!

## Quick Answers

- **What is this?** Sovtek 12AX7LPS Vacuum Tube (Original Version) by sovtek
- **How much does it cost?** € 37.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/2518030-sovtek-12ax7lps-vacuum-tube-original-version)

## Best For

- sovtek enthusiasts

## Why This Product

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

## Key Features

- • **Bass-Enhanced Soundstage:** Adds a richer bass response and wider soundstage, perfect for audiophiles craving depth.
- • **Long Plate Spiral Design:** Enjoy reduced microphonics and hum for pristine, fatigue-free listening sessions.
- • **High Gain, Smooth Presentation:** Amplify your signal with clarity and a silky smooth overdrive that adds crunchy fizz.
- • **Versatile Placement Powerhouse:** Ideal for V1 slots, effects loops, and phase inverters to clean up gain stages effortlessly.
- • **Precision Russian Craftsmanship:** Experience a full-bodied, well-balanced tone that elevates your sound.

## Overview

The Sovtek 12AX7LPS is a Russian-made 9-pin miniature preamp tube featuring a high amplification factor of 100. Its long plate spiral filament design minimizes hum and microphonics, delivering a smooth, full-bodied sound with enhanced bass and a crunchy overdrive character. Perfect for initial signal stages like V1 or effects loops, it offers high headroom and clarity, making it a top choice for discerning audiophiles and guitarists seeking a refined tonal upgrade.

## Description

9 pin miniature preamp tube (Amplification Factor = 100). This Russian tube is full bodied and well balanced. It has a high gain with a very smooth presentation. In overdrive, it is not quite as defined as the 12AX7-S-JJ, but it offers more crunchy fizz. For more information about our 12AX7 tubes, see our tech corner article on 12AX7s.

Review: Great tube, if you know what you want. - The LPS is a high signal gain, high headroom tube. This means it does not distort easily but will deliver a loud and clear signal. You don't want to use one of these in gain stages unless you want to clean up the gain stages. They sound best in slots that interact with the signal initially, like V1, effects loops, or the phase inverter. They will bring a touch more bass relative to most other tubes. I've loved them for many years now. If you want something for gain stages that has less headroom, look for almost anything else.
Review: This is the tube that smooth out my Vincent SV-237 amp. - I was using a Mullard 12AX7/ECC83 in my Vincent Audio SV237 that sounded too bright for my ears and causing listening fatigue. After many hours of research, I decided to try out this Sovtek 12AX7LPS (Long Plate Spiral). The Mullard 12AX7 and Sovtek 12AX7LPS looked exactly alike, but on the first drop-in of the Sovtek, the brightness when away and music had more bass and a wider sound stage. I'm very happy with this tube that I 'm planning on buying another tube for a backup. Words from another tube user - The 12AX7LPS is a great tube and an exceptional choice for tube equipped home stereo systems. The difference is that the LPS has a longer plate structure than some other tubes. The bigger the plate structure the more chance for microphonics. The LPS stand for long plate/spiral filament. A spiral filament will decrease hum considerably which is very important in home stereo's, especially when listening to classical music.

## Features

- 9 pin miniature preamp tube (Amplification Factor = 100)
- This Russian tube is full bodied and well balanced
- It has a high gain with a very smooth presentation
- In overdrive, it is not quite as defined as the 12AX7-S-JJ, but it offers more crunchy fizz
- For more information about our 12AX7 tubes, see our tech corner article on 12AX

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #20,192 in Musical Instruments ( See Top 100 in Musical Instruments ) #43 in Guitar Amplifier Tubes |
| Customer Reviews | 4.6 out of 5 stars 182 Reviews |

## Images

![Sovtek 12AX7LPS Vacuum Tube (Original Version) - Image 1](https://m.media-amazon.com/images/I/51ikl7XzqHL.jpg)

## Questions & Answers

**Q: what kind of sound will this give me in the distortion area?**
A: Distortion doesn't come from just this tube, and in fact in most circuits that are specially designed to get distortion from the 12ax7, this one will probably exhibit the least amount. The LPS is a very clean tube and I've used it mostly in my Hi Fi equipment, not in my guitar amp. JJ/Tesla is where you want to go--I find that one to have a more distorted character when driven in the right circuit.

**Q: Does the "original version" have the "rounded square shape" mica?  or is this the newer "toothed" mica?  thank you much.**
A: Newer version. I wasn’t impressed with the tone of the tube  to be honest

**Q: will these fit in my 1987 laney AOR 50 watt head?**
A: Yes, the 12AX7LPS should work perfectly with your AOR 50.

**Q: What are the sovtek 12ax7lps compaired to the jj's in a marshall 2205 amp?**
A: I've always used the Sovtek ax7 LPS in the Phase Inverter position on my Vox and Egnater amps.  Purportedly to be the best spot for them.  I have never been a big JJ fan ( although I am currently trying a JJ ECC 803 12ax7 Hi Perf tube in P.I. slot in the Egnater - sounds fine )    I am sure the Sovtek LPS would be fine PI tube for the Marshall

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great tube, if you know what you want.
*by I***. on May 16, 2025*

The LPS is a high signal gain, high headroom tube. This means it does not distort easily but will deliver a loud and clear signal. You don't want to use one of these in gain stages unless you want to clean up the gain stages. They sound best in slots that interact with the signal initially, like V1, effects loops, or the phase inverter. They will bring a touch more bass relative to most other tubes. I've loved them for many years now. If you want something for gain stages that has less headroom, look for almost anything else.

### ⭐⭐⭐⭐⭐ This is the tube that smooth out my Vincent SV-237 amp.
*by S***N on May 20, 2023*

I was using a Mullard 12AX7/ECC83 in my Vincent Audio SV237 that sounded too bright for my ears and causing listening fatigue. After many hours of research, I decided to try out this Sovtek 12AX7LPS (Long Plate Spiral). The Mullard 12AX7 and Sovtek 12AX7LPS looked exactly alike, but on the first drop-in of the Sovtek, the brightness when away and music had more bass and a wider sound stage. I'm very happy with this tube that I 'm planning on buying another tube for a backup. Words from another tube user - The 12AX7LPS is a great tube and an exceptional choice for tube equipped home stereo systems. The difference is that the LPS has a longer plate structure than some other tubes. The bigger the plate structure the more chance for microphonics. The LPS stand for long plate/spiral filament. A spiral filament will decrease hum considerably which is very important in home stereo's, especially when listening to classical music.

### ⭐⭐⭐⭐⭐ Quality and tone
*by M***3 on September 14, 2025*

Quality and tone for days. I have 2 in my Bogner Twin Jet Uberschall.

## Frequently Bought Together

- Sovtek 12AX7LPS Vacuum Tube (Original Version)
- JJ Electronics Amplifier Tube (T-ECC803-S-JJ)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-17*