GR Bass AT-ACOUS(SL) AeroTech Series CUBE ACOUSTIC – 1x12" 800W Carbon Fiber Bass Combo

The GR Bass AT-ACOUS(SL) from the AeroTech Series is a high-end, ultra-light bass combo specifically designed for upright bass and acoustic bass. This 1x12” combo combines the signature GR sound with a premium carbon fiber enclosure, making it incredibly light and strong. At only 9.2 kg (20 lbs), it is one of the lightest yet most powerful combos in its class. The amplifier delivers 800W RMS power and features a custom Jensen/Sica speaker, two independent channels, dual DI outputs, a notch filter, and a compressor—all integrated into a compact, rugged enclosure.

The AT-ACOUS(SL) is not only powerful and lightweight, but also exceptionally versatile thanks to its extensive control options on both the front and rear panels. The three-position tweeter, dedicated EQ for each channel, phantom power, piezo option, and a precision notch filter allow you to fine-tune the sound to any stage or studio. Whether you want a pure acoustic sound or require extra definition and control, this combo delivers professional results in any situation.

Specifications:

• Make & Model: GR Bass AT-ACOUS(SL) AeroTech Series
• Amplifier power: 800W RMS (AES standard)
• Speaker power: 500W RMS (AES standard)
• Speaker: 1 x 12" custom Jensen/Sica woofer
• Tweeter: Horn Driver 1" with 3-position switch
• Frequency response: 38 Hz – 18 kHz
• Sensitivity: 99 dB SPL
• Impedance: 8 Ohms
• Bass reflex: Rear
• Dimensions: 40 x 45.5 x 40 cm
• Weight: 9.2 kg

Connections & operation:

• Back panel:
• AC power connection (230V/115V)
• Send / Return
• DI output (CH1 & CH2)
• Ground lift button
• Pre/Post DI switch
• Speakon speaker output
• Ethernet port
• Dual/Line Out Mix output
• Front panel (per channel):
• XLR/jack input
• 48V phantom power
• Phase and Piezo switches
• EQ: Bass, Mid-Low, Mid-High, High
• Deep & Bright buttons
• Pure switch
• DI volume control
• Notch filter + frequency adjustment
• Compressor with ratio selection
• Master volume
• Mute button
• Channel selection & Power on/off
• Operational LED indicator

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