The Little Labs Monotor Headphone Amp delivers mastering-grade headphone monitoring for engineers who need to hear every edit, phase issue, reverb tail, and tiny detail hiding in a mix.

Designed as an audiophile headphone amplifier for professional audio work, Monotor combines a minimal signal path, powerful dual headphone outputs, and serious mono monitoring tools in a compact, studio-ready format. Built for critical listening, mix checking, mastering, archiving, and converter evaluation, the Monotor uses a fully differential, nearly passive circuit path with only one active gain stage per output. This keeps the focus on source accuracy, not flavor, while the internal low-noise linear regulation and generous power reserve help deliver clear, controlled lows, open highs, and fatigue-free analytical listening. The Little Labs Monotor is especially useful when headphones are your microscope. Its stereo, reverse stereo, L+R, left-only, right-only, and L-R monitoring modes make it easy to check phase, azimuth, stereo balance, mono compatibility, and lossy audio artifacts without diving through software menus. Dual separately powered stereo headphone outputs allow two listeners to monitor together, with both 1/4" and 3.5mm jacks available for each output path.

Little Labs Monotor Headphone Amp Features

• Professional headphone amplifier designed for high-resolution source analysis
• Fully differential, nearly passive signal path with one active gain stage per output
• Dual separately powered stereo headphone outputs for tandem listening
• Includes both 1/4" and 3.5mm headphone jacks
• Extensive mono monitoring modes for phase, azimuth, and artifact checking
• Stereo mini aux input for talkback or portable playback sources
• XLR/TRS combo inputs paralleled with TRS jacks for inline monitoring and daisy chaining
• Quality stepped volume attenuator with internal bypass capability
• Internal super low-noise linear voltage regulation
• Rack-mountable design supports up to four Little Labs devices in 1U
• Built in California

Little Labs Monotor Headphone Amp Includes

• Little Labs Monotor Headphone Amp
• Power Supply
• Owners Manual
• Manufacturer Warranty