Your Cart is Empty
4-TIME Blues Music Award Winner!! ORDERS FROM JULY 1-22 START SHIPPING JULY 23, 2026
$495.00
Custom Shure 707A, 151 Crystal
Each Custom BadAss Mic is a one-of-a-kind!!
$2,495.00 $2,995.00 You Save 16% ($500.00)
RARE 1954 Gibson GA-77 Amp, 1x15" speaker
Below is where you can make a "virtual tip" for me during these times when I am juggling my performing work as well as working on new merchandise here on BadAss Harmonica such as new products, videos, and webinars where I share proceeds with other musicians...
For more Harmonica Content - Check Out My Membership Packages!
Tips are appreciated MUCH more than you know...Thank You!!
- Dennis Gruenling
huge selection of
...Microphone shirts, Music shirts, and more being added regularly!!
Merchandise!! Yes, we have exclusive
Merchandise!!
...go ahead and check out the selection of rings, mugs, posters, pins, music, jam tracks... and more!
Tour Dates & Classes Tour Dates & Classes
Back on the road with the Nick Moss Band, and conducting Live Online Webinars and Harmonica Workshops!
rebuilding, restoring, and selling the best
Vintage Microphones
for amateur and pro harmonica players around the globe for over 25 years!
$795.00 $950.00 You Save 16% ($155.00)
Masco C-6 Amp, 1x8" speaker
$485.00
Custom Astatic JT-30, 127 Ceramic
Each Custom BadAss Mic is a one-of-a-kind!!
Student Testimonial
“It has been my pleasure to have become one of Dennis' students…from the time we had our first 'in person' session, to our current setup of doing the online sessions. I have become a full time tounge-blocker thanks to him! Also, my ears have been hearing & listening for things I never would have picked up on my own. I must say, I am a much better & more comfortable player, since I started sessions with Dennis!”
John K. (online student)
--Click to Take Lessons--
Student Testimonial
“Dennis Gruenling's online lessons are as good as any face to face lessons. The setting is just as intimate - it becomes just you and Dennis. I think his lessons are better than anything else one might find...Dennis is one of the premier contemporary players of the day, and yet teaches you as if he cares more about your progress than anything else."
Jeff R. (online student)
--Click to Take Lessons--
Student Testimonial
“I have taken two 'semesters' of lessons with Dennis. As an intermediate player when I began, Dennis has definitely helped me achieve the next level in my playing. Dennis’ approach to music theory has helped my understanding of music tremendously. I now consider myself a musician, not just a harp player. Even long distance, these lessons are a great value for the money!”
Gregg S. (online student)
--Click to Take Lessons--
Student Testimonial
"Dennis is the perfect teacher – he points you in the correct direction when you need help, he makes you feel comfortable, and he helps if you are feeling frustrated. I have now gotten to the level that I am in my own blues band and I never could have made it to this point without Dennis.”
Bob A. (local student)
--Click to Take Lessons--
You can now track my touring happenings and whereabouts on BandsInTown - a super cool website used to follow bands!
