GR Bass ATC500(SL) AeroTech Series Bass Combo – 1x12" 500W Carbon Fiber

The GR Bass ATC500(SL) from the AeroTech Series is the lightest 1x12" bass combo on the market and is constructed entirely of high-quality carbon fiber. This premium combo weighs only 7.8 kg (16 lbs), yet delivers a powerful 500 watts RMS through a custom Jensen/Sica woofer. Its ultra-lightweight cabinet and compact size make it perfect for bassists who demand top-notch performance without compromising portability or durability.

In addition to its powerful sound, the ATC500(SL) offers a wide range of modern features: a built-in tuner, AUX input, headphone output, and a switchable 3-position tweeter for precise tone control. The rear panel features professional connections such as a DI output with pre/post switch, ground lift, send/return loop, and an adjustable fan setting for studio or live mode. This combo is ideal for both stage and studio monitoring and consistently delivers the clear, dynamic GR Bass sound.

Specifications:

• Make & Model: GR Bass ATC500(SL) AeroTech Series
• Amplifier power: 500W 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: 98 dB SPL
• Bass reflex: Rear
• Dimensions: 40 x 45.5 x 35.5 cm
• Weight: 7.8 kg

Connections & controls (rear panel):

• Input 230V/115V (automatic selection)
• 9 Volt 300mA output
• Send / Return
• DI Output with Pre/Post switch
• Ground lift button
• Speakon speaker output
• Fan with Studio/Live mode switch

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