M-Audio Studiophile AV-40 Desktop Speakers ? Studio Monitors (For Parts or Repair) These speakers power on,the right speaker produces sound.and works perfectly . The left speaker is non-functional. From my research, this appears to be a common issue with this speaker, often caused by a couple of failing capacitors that may need replacement. However, I cannot confirm whether this is the exact problem, as I am not experienced with this type of repair. Sold AS-IS for parts or repair. No guarantees or returns. TERMS OF SALE sold as is "PLEASE LOOK AT THE PICTURES THEY ARE FROM THE ACTUAL PRODUCT THAT I WILL SHIP -WHAT YOU SEE IS WHAT YOU GET" FAST AND SECURE SHIPPING WITH PROFESSIONAL PACKAGING TO ENSURE SAFE DELIVERY. IF FOR ANY REASON YOU ARE NOT HAPPY WITH THE PURCHASE PLEASE CONTACT US BEFORE LEAVING NEGATIVE FEEDBACK.