Description
Best replacement valve kit for Supro Blues King 12 amplifiers.

This replacement valve kit for Supro Blues King 12 amplifiers will get your amplifier sounding better than ever. These superior quality valves will give you a significant upgrade in both tone and power. The best value for money amplifier valves on the market today.
This superb kit comprises:
1 x Premium Grade JJ ECC83 preamp valve (also called 12AX7).
1 x Premium Grade JJ 6L6GC power valve/power tube.
We always recommend JJ valves for the Supro Blues King 12 amplifier. This is because they offer a superb tone at a very attractive price. We think these are the best valves/tubes for this amplifier.
You can order these amplifier valves singly but it is always recommended that you change all your valves at the same time if you possibly can.
So treat yourself to a brand new set of gorgeous sounding valves today. Restore the power and clarity to your Supro guitar amplifier.
- Awesome tone. This is what matters most. The number one priority for any guitarist has to be the tone. Warm, rich, fat and juicy are the words that best describe the sound from these valves.
- Sustained valve/tube power to make the most of every stage in the amplifier chain. It is the balance between volume and tone that distinguishes a great valve from a mediocre valve.
- Long valve/tube life. Guitar amps by their very nature have to be built to take a lot of knocks. This is also particularly important when it comes to the amplifier valves themselves.
Do you have any questions about this replacement valve kit?
If you have any questions please drop us an email. We have more than 30 years experience so we are sure we can help you.
If you have never replaced your tubes before, please check out our FAQ section first though. Here we answer all the most popular questions we get asked each week. We also provide lots of hints and tips on upgrading your tubes.
The best replacement valve kit for Supro Blues King 12 on the market.
- Every kit is carefully selected and fully tested before we ship to you.
- JJ valves have the highest quality control, minimal noise and extremely low harmonics.
- We have a range of fast delivery options with full tracking and insurance. So you know they will be delivered safely.
- Global delivery – we ship all over the world.
What Supro say about this amplifier.
Front-end gain in the Blues King 12 is supplied by a 12AX7 tube preamp and a FET-driven, fat boost function. In addition, the amp’s high-gain mode uses a series of cascaded FETs to achieve face-melting levels of distortion and sustain. 3-band EQ and Master Volume controls join the foot-switchable boost and gain functions to provide multiple layers of stackable overdrive for gigging, recording and home practice.
Click here to read more about the Supro Blues King 12
Replacement valve kit for Supro Blues King 12 and which valves are best.
Our JJ valves give awesome tone and restore the power and clarity to your amp. All valves 100% guaranteed. Carefully tested and graded.
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