Big Knob Passive Controller with RPAK Backpack

Set up a simple studio monitoring workflow with the Big Knob Passive 2x2 controller and a charcoal RPAK backpack. The controller lets you select between two audio sources and two monitor pairs, then set listening level with its classic volume control. Mono, mute, and dim functions give you quick options for checking a mix, pausing playback, or lowering the level. Its passive audio path requires no power supply, so there is no separate supply to add to the desk setup. The backpack adds a padded main-compartment laptop pocket sized for laptops up to 15 inches, a hidden side zip compartment, and two open side pockets for drinks or an umbrella. Adjustable padded straps and durable nylon fabric support everyday carry. Its main compartment measures 15 inches wide by 21.75 inches high when extended, or 15 by 18 inches when folded. Together, the two items combine hands-on monitor control with useful storage for a compact studio routine.