---
product_id: 60437500
title: "Ruby Tubes EL34BSTR Quartet Matched"
brand: "ruby"
price: "£1.14"
currency: GBP
in_stock: false
reviews_count: 1
url: https://www.desertcart.co.uk/products/60437500-ruby-tubes-el34bstr-quartet-matched
store_origin: GB
region: Great Britain
---

# Ruby Tubes EL34BSTR Quartet Matched

**Brand:** ruby
**Price:** £1.14
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Ruby Tubes EL34BSTR Quartet Matched by ruby
- **How much does it cost?** £1.14 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/60437500-ruby-tubes-el34bstr-quartet-matched)

## Best For

- ruby enthusiasts

## Why This Product

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

## Description

EL34BSTR RUBY MATCHED QUAD High-gain EL34 with dynamic tone. Extra-strong bottle. Loud and clear. Often reviewed as well-balanced. All RUBY Tube power tubes come already matched. There is no extra charge for this service. Our Magic Parts matching process is very exact and our tubes are matched within +/- 1 mA (mille amp) of each other.

## Images

![Ruby Tubes EL34BSTR Quartet Matched - Image 1](https://m.media-amazon.com/images/I/71Yf-HpgPkL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    ruby tubes EL34SBTR
  

*by D***. on Reviewed in the United States on January 4, 2014*

These tubes ( china) came stock in my Marshall DSL40c. they have a great low end . Tried others but these sound best in this amp to me.Make sure to set bias after installing or do what i did and buy 4. Bias one set and the other matched set will be good to go when needed.

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**Shop now:** [https://www.desertcart.co.uk/products/60437500-ruby-tubes-el34bstr-quartet-matched](https://www.desertcart.co.uk/products/60437500-ruby-tubes-el34bstr-quartet-matched)

---

*Product available on Desertcart Great Britain*
*Store origin: GB*
*Last updated: 2026-04-30*