Image 1 of 8
Image 2 of 8
Image 3 of 8
Image 4 of 8
Image 5 of 8
Image 6 of 8
Image 7 of 8
Image 8 of 8
G-System 2.0 + Sound Service
Originally a Prolific Series build, smaller G-System variants became the go-to PA for Metal Monday at Savage Henry from 2022–2024 and for events through 2022–2025 (including Metal4Marcos, Redwood Metal Fest 8 & 9, and several Eureka Vet’s Hall shows). After proving effective as a midsize PA at frequent Savage Henry shows, it was labeled the first Sentinel Series build, then replaced by a more advanced Sentinel prototype in 2024.
The G-System:
2X Yamaha 15” Passive top mains , 400 Watts @8 ohms each (+1 extra for backup)
2X 15” Passive Sub boxes, 400 Watts @ 8 ohms each
3X Passive Stage Monitors, (x2 12”, 200 Watts @ 8 ohms, x1 15”, 400 Watts @ 8 ohms)
100’ 16 channel stage XLR snake, Mackie 16 Channel 1604 Mixer
Power Amp Rack with Bi-Amped Class AB amplifiers
American Audio VLP1500 (Top Mains) 500 Watts RMS @ 8 ohms per channel
American DJ V2000 (bridged) - Subs - 1200 Peak Watts at 4 ohms bridged
Nady XA300 (Monitors 1-2) 120 Watts RMS @ 8 ohms per channel
QSC RMX 850 (bridged) - Drum Monitor - 600 Peak Watts @ 8 ohms bridged
Vocal and instrument mics, speaker/mic stands, DIs, and cabling included
Accommodate DI inputs from Synths, Pedals, Drum Modules, Samplers and more
External FX processing for Drums and vocals via Vintage Digital effects components
Centrally powered via GS-Link (a components settings matrix that gives every featured GAM Systems build the signature Humboldt-era GAM sound. Battle-tested components are programmed with these settings before leaving the shop floor. To ensure each build keeps its ideal tone, the settings matrix is in the “about” section for reference)
Want to take your show and sound to the next level? Chosen as a flagship line for GAM Systems builds and used for many events in the Nor-Cal area, the Sentinel Series in essence is a mobile "80's metal club system" assembled in the modern day, times that consist of powered speaker arrays and digital boards. Supporting up to 4 separate monitor mixes, the Sentinel Series combines powerful output yield with flexible tone shaping controls/FX and will fit into the back of a truck or van.
Rental Price: $200 per day (includes sound service). To book, fill out the next section and send payment via one of the options following the link below. We will follow up shortly with a confirmation email and text.
Originally a Prolific Series build, smaller G-System variants became the go-to PA for Metal Monday at Savage Henry from 2022–2024 and for events through 2022–2025 (including Metal4Marcos, Redwood Metal Fest 8 & 9, and several Eureka Vet’s Hall shows). After proving effective as a midsize PA at frequent Savage Henry shows, it was labeled the first Sentinel Series build, then replaced by a more advanced Sentinel prototype in 2024.
The G-System:
2X Yamaha 15” Passive top mains , 400 Watts @8 ohms each (+1 extra for backup)
2X 15” Passive Sub boxes, 400 Watts @ 8 ohms each
3X Passive Stage Monitors, (x2 12”, 200 Watts @ 8 ohms, x1 15”, 400 Watts @ 8 ohms)
100’ 16 channel stage XLR snake, Mackie 16 Channel 1604 Mixer
Power Amp Rack with Bi-Amped Class AB amplifiers
American Audio VLP1500 (Top Mains) 500 Watts RMS @ 8 ohms per channel
American DJ V2000 (bridged) - Subs - 1200 Peak Watts at 4 ohms bridged
Nady XA300 (Monitors 1-2) 120 Watts RMS @ 8 ohms per channel
QSC RMX 850 (bridged) - Drum Monitor - 600 Peak Watts @ 8 ohms bridged
Vocal and instrument mics, speaker/mic stands, DIs, and cabling included
Accommodate DI inputs from Synths, Pedals, Drum Modules, Samplers and more
External FX processing for Drums and vocals via Vintage Digital effects components
Centrally powered via GS-Link (a components settings matrix that gives every featured GAM Systems build the signature Humboldt-era GAM sound. Battle-tested components are programmed with these settings before leaving the shop floor. To ensure each build keeps its ideal tone, the settings matrix is in the “about” section for reference)
Want to take your show and sound to the next level? Chosen as a flagship line for GAM Systems builds and used for many events in the Nor-Cal area, the Sentinel Series in essence is a mobile "80's metal club system" assembled in the modern day, times that consist of powered speaker arrays and digital boards. Supporting up to 4 separate monitor mixes, the Sentinel Series combines powerful output yield with flexible tone shaping controls/FX and will fit into the back of a truck or van.
Rental Price: $200 per day (includes sound service). To book, fill out the next section and send payment via one of the options following the link below. We will follow up shortly with a confirmation email and text.

