Phil Jones is a professional audio engineer and bass player who has been in business for over 4 decades now. He noticed that traditional bass amplifiers were built on old principles but these were not really effective. Being a world class HiFi speaker designer himself, he started PJB with the intention of applying the same technology and design that was used in that exclusive HiFi speaker world to produce bass amps that would be effective, affordable and reliable.
From the beginning, PJB's most innovative feature was the use of small speakers proving that, if done right, these are far more effective than larger ones. Of course a lot of research went into this and multiple tests were performed to check the beaviour of the speakers, the use of PWM amplifiers and specially designed cabinets.
All PJB amps produce a clear and undistorted sound as well as a very deep and focused low end that is usually hard to belive it comes form such a small amp.
This is the SUITCASE COMPACT BG400 combo and here's the description by PJB themselves:
This model is based on the nu-compromised performance of the original PJB Suitcase.
It is more powerful by physically smaller; in fact the same size as our Compact 4 enclosure. It has an incredible punch sound cutting through air as “a knife through butter” but with a solid and powerful low end response normally associated with a much larger combo.
It features a two-channel pre-amp with our unique 3 band EQ. Simple to find “your sound”, the EQ sound has amazing control and transparency that allows you to unmistakably hear the true characters of your own playing and instrument.
In the heart of this amp lies a formidable ultra-energy power supply. It feeds an efficient class D power amplifier which utilizes almost 95% of this energy to drive the four internal PJB Piranha speakers.
The Suitcase Compact puts out a healthy 300 watts RMS onto its own speakers. Adding a Compact 4 cabinet it becomes 500 watts, and adding a Compact 8 it becomes 575 watts.
The future of amps is trending to “smaller and better” but with the Suitcse Compact bass combo, the future is here now!