---
product_id: 98405246
title: "New In Box Gain Matched Pair JJ Electronics Tesla 12AX7 ECC83-S Vacuum Tubes"
brand: "jj electronic"
price: "B/.148"
currency: PAB
in_stock: true
reviews_count: 8
category: "Jj Electronic"
url: https://www.desertcart.com.pa/products/98405246-new-in-box-gain-matched-pair-jj-electronics-tesla-12ax7
store_origin: PA
region: Panama
---

# Instant tonal boost & dynamic range Gain matched pair for sonic clarity Enhanced mid & low frequency response New In Box Gain Matched Pair JJ Electronics Tesla 12AX7 ECC83-S Vacuum Tubes

**Brand:** jj electronic
**Price:** B/.148
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your sound game—because your music deserves the best!

## Quick Answers

- **What is this?** New In Box Gain Matched Pair JJ Electronics Tesla 12AX7 ECC83-S Vacuum Tubes by jj electronic
- **How much does it cost?** B/.148 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/98405246-new-in-box-gain-matched-pair-jj-electronics-tesla-12ax7)

## Best For

- jj electronic enthusiasts

## Why This Product

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

## Key Features

- • **Instant Vinyl Revival:** Transforms your playback with crisp highs and rich lows—hear every detail
- • **Top-Rated Sound Upgrade:** Join thousands of audiophiles enjoying a 4.6-star sonic enhancement
- • **Versatile Compatibility:** Ideal for phono preamps, guitar amps, and tube audio setups
- • **Durable Glass & Metal Build:** Premium materials for long-lasting reliability and consistent tone
- • **Precision Gain Matched Pair:** Ensures perfectly balanced audio performance for pro-grade sound

## Overview

The JJ Electronics Tesla 12AX7 ECC83-S vacuum tubes come as a gain matched pair designed to deliver superior audio clarity and tonal balance. Perfect for vinyl phono preamps and guitar amplifiers, these tubes enhance highs, mids, and lows with a durable glass and metal construction. Highly rated by users, they offer an affordable, instant upgrade to your audio system.

## Description

New In Box Gain Matched Pair JJ Electronics Tesla 12AX7 ECC83-S Vacuum Tubes

Review: Killer Price with instant results. - Im using the JJ's in my Pro-Ject Tube Box s. This is a Phono Pre...FYI. The Tubes instantly woke up my Vinyl Playback. Highs were more distinct with separation. I do hear an increase in low and mid range. I have Gold Lions in my Black Ice Audio Tube amp in my other setup. Im actually leaning towards trying the JJ's. in that setup as well. This is a fun sounding tube that gave my system a nice boost in performance. Id Buy again. Especially at that price.
Review: Great tubes and seller - Excellent tubes... my old tubes were scratchy... my guitar is now clear as a bell... very mellow sound. Shipping was fast... thanks!!

## Features

- New In Box Gain Matched Pair JJ Electronics Tesla 12AX7 ECC83-S Vacuum Tubes
- Size: 7.05 Ounce (Pack of 1)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MR3DZ1N |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #15,014 in Musical Instruments ( See Top 100 in Musical Instruments ) #26 in Guitar Amplifier Tubes |
| Color | Transparent |
| Customer Reviews | 4.6 4.6 out of 5 stars (96) |
| Date First Available | December 26, 2018 |
| Item Package Quantity | 1 |
| Item Weight | 0.634 ounces |
| Item model number | jj 12ax7 pair |
| Manufacturer | JJ Electronic |
| Material | Glass, Metal |
| Package Dimensions | 2.44 x 2.05 x 1.06 inches |
| Part Number | jj 12ax7 pair |
| Size | 3.5 inches |

## Product Details

- **Brand:** JJ Electronic
- **Color:** Transparent
- **Item Length:** 3.5 Inches
- **Manufacturer:** JJ Electronic
- **Material:** Glass, Metal

## Images

![New In Box Gain Matched Pair JJ Electronics Tesla 12AX7 ECC83-S Vacuum Tubes - Image 1](https://m.media-amazon.com/images/I/414vqfbg+BL.jpg)
![New In Box Gain Matched Pair JJ Electronics Tesla 12AX7 ECC83-S Vacuum Tubes - Image 2](https://m.media-amazon.com/images/I/81bi+m6ryLL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Killer Price with instant results.
*by B***0 on February 23, 2024*

Im using the JJ's in my Pro-Ject Tube Box s. This is a Phono Pre...FYI. The Tubes instantly woke up my Vinyl Playback. Highs were more distinct with separation. I do hear an increase in low and mid range. I have Gold Lions in my Black Ice Audio Tube amp in my other setup. Im actually leaning towards trying the JJ's. in that setup as well. This is a fun sounding tube that gave my system a nice boost in performance. Id Buy again. Especially at that price.

### ⭐⭐⭐⭐⭐ Great tubes and seller
*by J***. on November 1, 2025*

Excellent tubes... my old tubes were scratchy... my guitar is now clear as a bell... very mellow sound. Shipping was fast... thanks!!

### ⭐⭐⭐⭐⭐ BRILLIANT SOUND
*by K***N on March 27, 2022*

These tubes really made a brilliant difference on my hybrid tube amplifier. After about 15 hours of use they settled in nice with clear high notes and lovely midtones and bass you can hear more than feel. Cannot speak on longevity yet because they only have been in use for around 50 hours. Good value so far. UPDATE: These tubes are performing flawlessly after one year of daily use. Very impressed! This is the only tube for my little amp!

## Frequently Bought Together

- New In Box Gain Matched Pair JJ Electronics Tesla 12AX7 ECC83-S Vacuum Tubes
- Pair of JJ EL84/6BQ5 Power Vacuum Tube
- JJ Electronics Amplifier Tube (T-12AT7-JJ)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-01-27*