Dear Customer,
Thanks a lot for stopping by this page in the first place! We hope you had lots of fun working on your GA15! Even if that was not the case 🙁 we would really encourage you to complete the survey below. It’s comprised of only 10 multiple choice questions, so it will take you less than 5 minutes. We’ll use your feedback to improve the experience for future buyers. Optionally upload some pictures or demo clips of your project too. Much appreciated!
Sander de Vries, Cosmic Ampworks



    Please enter the code provided in your review invitation email:

    1. Which options did you select when you bought your GA15 Ultimate Mod Kit?
    Printed 27-page full-colour manual
    High quality tone capacitors
    Presence mod (presence and NFB controls on the back of the amp)

    2. How would you rate the difficulty of the mods?
    Very easyRather easyDoable, more or lessDifficultVery difficult

    3. Were you able to complete the mods as described in the manual?
    Please comment below (optional).
    YesMore or lessUnfortunately not

    4. Did you notice an improvement after modifying your Harley Benton GA15?
    Please comment below (optional).
    Totally!A bitDon't knowThings got worse...It sounded terrible!

    5. Were all materials (wire, etc.) present in sufficient quantities?
    Please comment below (optional).
    YesMore or lessNo

    6. Was the manual easy to understand?
    Please comment below (optional).
    Piece of cake!UnderstandableDon't knowPretty difficultRocket science to me...

    7. Overall, how would you rate the Ultimate GA 15 Mod Kit?
    Enter any general comments or suggestions below (optional).
    Very goodGoodOkNot so goodVery bad

    8. Could we include any of your comments or uploads on this website?
    In that case, please don't forget to enter your name with the last question!

    9. Optionally upload a picture, video or audio clip of your project!
    File size should not exceed 4Mb, allowed types: jpg, jpeg, png, gif, avi, ogg, m4a, mov, mp3, mp4, mpg and wav.

    10. Your name and/or email address (optional).