Musicians looking for a practice amp might want to check out Positive Grid’s Spark Mini. It’s a compact guitar amp that doubles as a Bluetooth speaker. Honest to god, this is one of my favorite things ever.
When it comes to the headphone audio that comes out of mobile phones, laptops, and tablets, the sound quality is generally decent, but rarely what I would call “audiophile-grade” or particularly loud. Using an external amplifier can help improve overall sound quality and volume, and HELM Audio’s DB12 AAAMP aims to do just that.