Phil Jones X4 Nanobass BK
Mini Combo Amplifier for Bass, Guitar, Ukulele and more

Latest User Reviews
3 years ago
Big sound from a small box
I needed a portable bass-combo to play bass ukulele in a acoustic group on a pub. The Nanobass X4 is loud enough for that purpuse. It is a pity that PJB does not (yet) sell the X4C version in Europe. That one has a USB-C contact so that you can power the amp from a powerbank.
Technical Data
- Manufactured by Phil Jones
- Released in 2022
- Average price : $401
- Transistor / solid-state design
- Digital amplifier circuit
- Power: 35 W (RMS)
- DSP-based active crossover and dynamic range control
- Bluetooth 5.0
- Speaker configuration: 1x 4" PJB N52 Neo-Power
- Speaker frequency range from 72 to 15,000 Hz
- 3-Band EQ with +/- 15 dB boost/cut in each band
- Lightweight construction
- Aux input (3.5 mm stereo jack or Bluetooth) with adjustable level
- Easy connection and playback of external devices via Bluetooth
- Headphone output
- Controls for input level, aux / Bluetooth level, bass, mid, treble and master volume
- Power toggle switch on top
- Input voltage 100 - 240V AC
- Dimensions : 160mm x 200mm x 198mm
- Weight 2.4 kg
- Colour: Black Tolex cover
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