Brand New with Warranty. We are an authorized Phil Jones Bass dealer.

This small-but-mighty bass combo amp is the perfect solution for café gigs, rehearsals, and studio-grade bass tones at home. It functions wonderfully as a reference monitor on larger stages and does a fantastic job amplifying acoustic instruments as well. This model features a DC power input that allows you to run the amp for hours on end straight off an external 20V battery. The Krisdonia 25000mAh Power Bank is a superb option for under $100. Whether playing indoors, entertaining a patio or busking on the street, this little amp is up to the challenge. All while weighing in under 9lb!

Each of the lightweight 4” Neodynium speakers is powered by its own amplifier, providing excellent efficiency and a high damping factor (higher is better) to keep the bass tight and punchy. And without getting into too much other tech verbiage, the “RALFR” (Rectangular Auxiliary Low Frequency Radiator) does an amazing job harnessing the power coming off the speakers to augment the low end in a way that makes this small enclosure sound many times its size. It’s not a gimmick. In fact, you can feel the air moving out of the back of the amp. The results are real and fill out the 30Hz to 150Hz range with amazing fullness and accuracy.

This listing includes a brand new Phil Jones Double Four Carry Bag. This bag features excellent padding, room for power supply and optional battery, and a handy accessories pocket on the front.

What we think:

  • Far exceeds our expectations of any small amp
  • Warm tones with full midrange and fantastic “growl”
  • The 4” neo speakers accurately reproduce the high end without the need for a tweeter
  • The Low Frequency Radiator in the rear of the amp delivers an amazing, natural bottom end
  • Position the amp against a wall or in a corner to further enhance the low end without boominess
  • Line out and headphone out increase versatility


Model: Double Four / BG-75

Power Output: 70 Watt (RMS)

Speaker: 2 x PJB NeoPower 4” speakers, Rectangular Auxiliary Low Frequency Radiator (RALFR®)

Adjustable Input Gain: Switchable high gain input OR low gain stage with mute function

EQ: 3-Band EQ (Treble, Mid, Bass)

Input: Instrument Input, AUX-Input Jack, DC-Power Input Socket

Output: Line-Out, Headphone-Out

Other: Power Switch

Power: 100/240V AC

Dimension (W x D x H): 11 x 8 x 6.8 inch / 280 x 203 x 172 mm

Weight: 8.8 lbs / 4 Kg

Color: Black

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.learn more
  • BG-75 Double Four 70-Watt 2x4" Bass Combo
  • Black
  • Solid State

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Nashville, TN, United States
Joined Reverb:2014

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