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All feedback (14)
- guitarmadnessguitarmadness (53651)- Feedback left by buyer.Past yearVerified purchaseGreat communication. A pleasure to do business with.
Reviews (3)

Aug 02, 2019
Obesity Code
It is a lot of the history of weight loss. What I gathered is obesity develops over decades- the kind of food you eat has a hormonal effect. Too much insulin is the cause. Intermittent fasting can have a lasting effect and is recommended. Avoid high fructose corn syrup- it can only be processed by your liver and what it can’t finish becomes fatty liver. They spend a lot of time talking about what doesn’t work when their advice is very short - don’t eat outside of an 8 hour or less window a few days a week.

Jan 15, 2020
Looks Like a New Mic and very Affordable!
Perfect fit. Looks brand new. I wish I had done it a while ago!!

Jan 15, 2020
Try one if you need a little less gain
I use one in my high gain amp. It works better in some positions than others.
But the way I use it, the retrovalve opens up the high gain channel, gave me a greater range of lower gain sounds and made the amp's eq more effective. I still had plenty of gain at higher settings. It is super quiet in the right position.
For my amp, it didn't work in the first position. But I have 7 12ax7s in my amp. I am currently using the blue ones in 3 different amps, and gigged out with them. The retrovalve works great. Learn your amps tube layout and what each tube does. They last longer than a 12ax7. Blue sounds more like a 12at7.
