dbx PB48 48-Point Patch Bay

dbx PB48 48-Point Patch Bay

The dbx PB48 is a compact, professional-grade patch bay built for studios and live rigs that demand reliable signal routing without bulk or complexity. This passive unit slots seamlessly into a standard 19-inch rack, offering transparent audio paths and the flexibility to reconfigure your signal flow on the fly. Its straightforward design and solid construction make it the kind of workhorse that disappears into the background while handling everything you route through it.

Design & Build Quality

The chassis occupies just 1.75 inches of rack height and extends only 2.6 inches deep, making it ideal for tight installations. Each of the 48 jacks features nickel-silver, self-cleaning contacts that resist oxidation and ensure consistent connection integrity over years of patching and repatching.

Normalling Configuration & Connectivity

All 1/4 inch phone jacks accept both balanced and unbalanced cables, and the normalling scheme is user-configurable between half-normalled and de-normalled operation, giving you full control over default signal paths. This passive design requires no power supply, eliminating one more dependency from your setup.

Key Features

• 48 patch points arranged in 2 rows of 24
• 1/4 inch phone jacks, balanced or unbalanced compatible
• Nickel-silver contacts with self-cleaning design
• Half-normalled or de-normalled configuration—user selectable
• Compact 1.75" H × 19" W × 2.6" D form factor
• Standard 19-inch rack mounting
• Per-module dimensions 1.4" H × 0.6" W × 2.6" D
• Completely passive—no active electronics or power requirements

The PB48 delivers the transparent, no-compromise signal routing that professional studios and touring systems depend on, with the durability and ease of use that justify its place in any serious signal chain.