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GR Bass NF Acoustic - 24 | 800 Watt Dual Channel Combo

$1,879.00

The GR Bass NF Cube Acoustic is designed for players who want to hear the true character of their acoustic instrument without compromising its natural response. Built with acoustic and upright bass in mind, it delivers deep lows, articulate mids, and detailed highs through an exceptionally lightweight cabinet. With 800 watts of total power (450 watts at 8 ohm internally) and a custom 12" Jensen/Sica speaker with a 1" horn driver, it has plenty of output for rehearsals, live performances, and studio work.

One of its standout features is the dedicated Piezo switch on each of its two independent channels. Piezo pickups can be difficult to amplify properly, particularly on upright bass, and the NF Cube Acoustic adjusts the input impedance to better match them, helping preserve the instrument's natural tone and low-frequency response, including frequencies below 40Hz. Each channel also has its own phase control, phantom power, gain, and four-band EQ. A notch filter helps control feedback, while onboard compression and Deep and Bright filters provide additional tone shaping. With two independent DI outputs, it's a thoughtfully designed acoustic amplifier that combines natural sound, serious power, and excellent flexibility in a remarkably portable package.

The GR Bass NF Cube Acoustic is designed for players who want to hear the true character of their acoustic instrument without compromising its natural response. Built with acoustic and upright bass in mind, it delivers deep lows, articulate mids, and detailed highs through an exceptionally lightweight cabinet. With 800 watts of total power (450 watts at 8 ohm internally) and a custom 12" Jensen/Sica speaker with a 1" horn driver, it has plenty of output for rehearsals, live performances, and studio work.

One of its standout features is the dedicated Piezo switch on each of its two independent channels. Piezo pickups can be difficult to amplify properly, particularly on upright bass, and the NF Cube Acoustic adjusts the input impedance to better match them, helping preserve the instrument's natural tone and low-frequency response, including frequencies below 40Hz. Each channel also has its own phase control, phantom power, gain, and four-band EQ. A notch filter helps control feedback, while onboard compression and Deep and Bright filters provide additional tone shaping. With two independent DI outputs, it's a thoughtfully designed acoustic amplifier that combines natural sound, serious power, and excellent flexibility in a remarkably portable package.

Power

Power Head - Power Cabinet: 800W RMS (AES Standard) - 450W 8 ohm RMS (AES Standard)

Impedence

4 ohm

Weight

20.3 lbs

Bass reflex

On rear

Sensitivity

99 dB SPL

Rear panel

- AC POWER SOCKET (230V - 115V)

- SEND

- RETURN

- D.I. OUTPUT (Ch1/Ch2)

- GND LIFT BUTTON

- PRE-POST DI BUTTON

- SPEAKON OUTPUT

- ETHERNET PORT

- LINE OUT DUAL / LINE OUT MIX

Dimension

W15.75 x D15.75 x H17.91 inch

Speaker

1 x 12” Custom Jensen/Sica Woofer

Tweeter

Horn Driver 1"

Frequency response

35 Hz to 22 kHz

Front panel

- INPUT XLR/JACK (Ch1, Ch2)

- 48V Phantom Power (Ch1, Ch2)

- PHASE (Ch1, Ch2)

- PIEZO (Ch1, Ch2)

- GAIN CONTROL KNOB (Ch1, Ch2)

- BASS KNOB (Ch1, Ch2)

- MID-LOW KNOB (Ch1, Ch2)

- MID-HIGH KNOB (Ch1, Ch2)

- HIGH KNOB (Ch1, Ch2)

- DEEP BUTTON (Ch1, Ch2)

- BRIGHT BUTTON (Ch1, Ch2)

- PURE SWITCH (Ch1, Ch2)

- DI VOLUME CONTROL KNOB (Ch1, Ch2)

- NOTCH FILTER BUTTON

- FREQ NOTCH KNOB

- COMPRESSOR KNOB

- RATIO SELECTOR

- MASTER KNOB (Ch1, Ch2)

- OPERATION LED (Ch1, Ch2)

- MUTE BUTTON

- CHANNEL SELECTOR

- POWER ON/OFF SWITCH