We’re holding a campaign in which five lucky winners will receive a Sound House Sister Acrylic Stand by posting a review on the product page for ELECTRO-HARMONIX’s popular Big Muff Pi 2 or Big Muff Pi 2 with Tone Wicker!
This is your chance to get your hands on rare Sound House Sister merchandise that isn’t available for regular sale. Customers who have already purchased the eligible products are also welcome to participate.
We sincerely look forward to your passionate reviews, whether they highlight the appeal of the upgraded Muff or share your carefully crafted settings. Please take this opportunity to participate!
Campaign Period
Monday, June 15, 2026 - Friday, July 31, 2026
Eligible Products
Big Muff Pi 2
Big Muff Pi 2 with Tone Wicker
How to Submit a Review
After purchasing an eligible product, click “Write a Review for This Product” on the product page.
Select a rating from the five-point scale, enter a title and review, then click “Review Content.” If you wish to post a video, upload the file via “Select Image/Video.” Review your submission and click “Post.”
Campaign Notes
Please submit reviews of at least 200 characters.
Purchases will be ineligible if your purchase history on Sound House cannot be verified.
Customers who made purchases prior to the campaign period are also eligible.
Duplicate winners are not allowed.
Winners will be notified directly; this notification will serve as the official announcement.