Pre-owned MASS-Kobo Model 428 Balanced Portable Headphone Amplifier
Original purchase date: No receipt
Working condition: Perfect
Visual condition: Minor signs of wear, please refer to the photos for visual condition
Overall condition: Great
Original packaging: Yes
Accessories: No, AA battery x4 are required but not included
Unbalanced headphones or earphones connected to the balanced output with or without adapters may cause the amplifier to malfunction.
NEVER connect them to the balanced output.
Please use 3.5 mm unbalanced output for unbalanced headphones or earphones.