BOSS GCS-8 Gigcaster 8 Audio Streaming Mixer

BOSS GCS-8 Gigcaster 8 Audio Streaming Mixer

The BOSS GCS-8 Gigcaster 8 Audio Streaming Mixer combines an eight-channel mixer, 20-in/14-out USB audio interface, onboard recording, effects, Bluetooth audio, and hands-on controls in one desktop system. It is designed for musicians, educators, podcasters, livestreamers, and content creators who need to mix microphones, instruments, computers, mobile devices, and playback sources.

Four balanced XLR/TRS combo inputs accommodate microphones and electronic instruments, while a dedicated high-impedance input connects guitar or bass directly. Low-noise microphone preamps provide up to +70 dB of gain with phantom-power support. GT-1000-derived guitar processing and VE-series vocal tools provide amp sounds, effects, pitch correction, harmony, voice processing, and other production options without requiring separate processors.

The 4.3" touchscreen works alongside nine faders, dedicated channel controls, eight customizable pads, four independent headphone outputs, talkback, ducking, and an onboard stereo microphone. Gigcaster 8 records stereo or multitrack 32-bit/48 kHz audio to optional microSD media and provides 20-in/14-out computer audio over USB-C for streaming and DAW production.

Key Features

• Eight-Channel Mixer: Combines microphones, instruments, USB audio, Bluetooth, mobile audio, sound pads, and other sources in one production interface.
• 20-In/14-Out USB Interface: Provides extensive multichannel audio routing for livestreaming, recording, and music-production software.
• Four Combo Inputs: Balanced XLR/TRS connections accept microphones and electronic instruments with up to +70 dB of microphone gain.
• Dedicated Guitar and Bass Input: High-impedance input works with integrated amps and effects derived from the BOSS GT-1000.
• Integrated Vocal Processing: VE-series technology provides compression, pitch correction, harmony, voice transformation, delay, reverb, and other effects.
• Eight Customizable Pads: Trigger audio or real-time effect commands using selectable banks and flexible control assignments.
• Multitrack Recording: Captures stereo or multitrack 32-bit/48 kHz audio directly to an optional microSD card.
• Four Headphone Outputs: Provides independent monitoring with dedicated EQ and headset microphone support on the first headphone connection.

Technical Specifications

Digital Audio and Recording

• Brand: BOSS
• Model: GCS-8
• Product Type: Audio Streaming Mixer and USB Audio Interface
• Mixer Channels: 8
• Sampling Rate: 48 kHz
• AD Conversion: 24-bit
• DA Conversion: 32-bit
• Internal Processing: 32-bit floating point
• USB Audio: 20 input channels, 14 output channels
• Recording Format: BWF, 48 kHz, 32-bit floating point
• Recording Storage: microSD card, sold separately
• Recording Modes: Stereo and multitrack
• Sound Pad File Format: WAV, 48 kHz, 16-bit linear
• Sound Pad Internal Storage: 16 GB
• Bluetooth Profiles: A2DP, HFP
• USB MIDI: Supported

Effects and Sound Pads

• Guitar Patches: 200 user, 100 preset
• Sing Patches: 200 user, 30 preset
• Talk Patches: 200 user, 30 preset
• Guitar Processing: Distortion, preamp, EQ, noise suppressor, pedal FX, FX1, FX2, FX3, delay/reverb
• Sing Processing: Compressor, enhance, de-esser, EQ, noise suppressor, pitch correction, harmony, FX1, FX2, FX3, delay/reverb
• Talk Processing: Compressor, enhance, de-esser, EQ, noise suppressor, FX1, FX2
• Console Processing: Compressor, enhance, de-esser, noise suppressor, FX
• Sound Pad FX Processing: 1 channel
• Output Processing: Compressor, reverb
• Sound Pads: 8
• Sound Pad Modes: Audio playback and real-time effects control
• Selectable Banks: 8 banks per mode
• Additional Functions: Talkback, ducking, built-in tuner, recording markers

Inputs

• Guitar Input: 1 x 1/4" phone jack
• Guitar Nominal Input Level: -10 dBu, adjustable
• Guitar Input Impedance: 1 MOhm
• Channel Inputs: 4 x balanced XLR/1/4" TRS combo jacks
• XLR Nominal Input Level: -40 dBu, adjustable
• TRS Nominal Input Level: -10 dBu, adjustable
• XLR Input Impedance: 5.6 kOhm
• TRS Input Impedance: 27 kOhm
• Microphone Preamp Gain: Up to +70 dB
• Phantom Power: Supported on microphone inputs
• Mobile Input: 3.5 mm stereo miniature CTIA jack
• Mobile Nominal Input Level: -20 dBu
• Mobile Input Impedance: 22 kOhm
• Built-In Microphone: Stereo

Outputs and Monitoring

• Main Outputs: 2 x 1/4" phone jacks, left and right
• Main Nominal Output Level: -10 dBu
• Main Output Impedance: 1 kOhm
• Recommended Main Output Load: 10 kOhm or greater
• Headphone Outputs: 4
• Headphone 1: 3.5 mm stereo miniature CTIA jack with headset microphone support
• Headphones 2-4: 3.5 mm stereo miniature jacks
• Headphone Output Impedance: 47 Ohm
• Headphone Controls: Independent level controls for Headphones 1-4
• Headphone Processing: Dedicated EQ

Controls and Connectivity

• Display: 4.3" color graphic LCD touchscreen
• Display Resolution: 480 x 272 pixels
• Channel Controls: CH 1-8 edit, mute, and monitor buttons
• Master Controls: Output edit and mute buttons
• Faders: CH 1-8 plus output fader
• Additional Controls: Talkback, record, mark, effects, Pads 1-8
• Headphone Level Controls: 4 knobs
• Footswitch Input: 1/4" TRS
• USB Port: USB Type-C
• External Control Support: BOSS FS-5U, FS-6, FV-500L, FV-500H, Roland EV-5, GA-FC, GA-FC EX
• Software: Gigcaster 8 App for Windows and macOS

Power and Physical Specifications

• Power Supply: PSD-series AC adapter or USB bus power
• Minimum USB Bus Power: 5 V/3 A
• Current Draw with Phantom Power: 1.8 A
• Current Draw without Phantom Power: 1.6 A
• Width: 8.6"
• Depth: 10.6"
• Height: 3.2"
• Weight: 3 lb

What's In the Box

• BOSS GCS-8 Gigcaster 8 Audio Streaming Mixer
• PSD-series AC adapter
• Owner's manual
• Using the Unit Safely leaflet