This is the new A7K MicroTube BASS Overdrive that has just arrived from Demonfx. Hint... Nice for Guitar too! Pretty much handmade in small batches. Quality components and a FULL RANGE OF TONAL OPTIONS. Well worth the price of admission here. No International or Overseas wait times! Bringing some of the best sought after sounds at a real nice price. The inspiration for this unit comes from the super popular unit that has many bass players talking. Part Pre-amp, part Overdrive. Numerous set options where you can dial in a distinct overall signature sound or switch subtle voicings between songs. The original unit is much sought after and carries a high price tag as well. Your chance here to capture the spirit of that sound for a fraction of the price. Built well and great for any 1st or second board.