Rolls DB425 Passive Four-Channel DI BoxCleanly transform your signals from unbalanced to balanced with the DB425 Four Channel DI from Rolls, a passive DI box that can easily convert any line or instrument level signal to balanced without the need for external power. The DB425 employs a specially designed nickel laminated transformer to transform signals with studio quality signal integrity. The DB425 features eight 1 4" inputs arranged in four pairs, allowing you to freely transform stereo