COOCHEER Blues Jr. / Pro Jr. JJ Tube Upgrade Kit (2x EL84, 3x 12AX7)
Product ID: 121343423
âš¡Apex matched for optimal tone
🎸2x T-EL84-JJ matched power tubes
🔋3x T-12AX7-S-JJ preamp tubes
🎶 Unlock your amp’s soul with the ultimate tube upgrade!
The COOCHEER Blues Jr. / Pro Jr. JJ Tube Upgrade Kit includes three T-12AX7-S-JJ preamp tubes and two apex matched T-EL84-JJ power tubes, designed to deliver warmer, clearer, and more dynamic tones. This kit enhances gain clarity and tonal warmth, making it a perfect plug-and-play upgrade for Blues Jr. and Pro Jr. amplifiers, favored by musicians seeking authentic vintage sound with reliable performance.
| ASIN | B00EJXZIP6 |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 71,535 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 337 in Amplifier Accessories |
| Customer Reviews | 4.7 4.7 out of 5 stars (310) |
| Date First Available | 6 Feb. 2014 |
| Item Weight | 68 g |
| Item model number | 4308828235 |
| Product Dimensions | 17.78 x 12.7 x 17.78 cm; 68 g |
| Quantity | 1 |
| Volume | 245 Cubic Inches |
R**N
I popped these into my amp and noticed an immediate difference. The gain from my amp, my overdrive pedals, and my fuzz pedal were super cleaned up and sounded awesome. That said, these seem to be either warmer tubes or "not as high gain" as the original Groove Tubes - which for me was a happy accident. They sound AMAZING! The much needed warmth that the previous tubes didn't have. By the way, get your tubes from Tonal Tubes! They match the tubes for you and ship extremely fast.
R**A
Excelente producto, llegó rápido y excelente precio
T**.
Used these in my Monoprice stage right 15W amplifier. These are lower noise with slightly higher sound level output. Excellent performance.
T**G
they worked well when I put them in then after a couple of months I had what sounded like a 60 cycle hum I could not figure out where from so i put it into a guitar amp repair shop where they have all the test equipment the tech found a bad tube and advised I change them all I did an it still works great this solved the hum problem
R**N
Arrived on time. Replaced the older tubes. The amp worked correctly and was very quiet.
Trustpilot
3 days ago
3 weeks ago