They have. Right out of the box these speakers have a harsh tone with male vocals to the point of being strident. If you are needing heavy bass built into the speaker look at more expensive options. Bass was. The sounds is clear and the speakers are able to portray an amazing sound with bass and clarity. The power of these speakers. This is a GREAT chorus pedal for bass!. I did a lot of online research and with Polk's name having been around now for more than 50 years, I decide to try the Monitor 40 Series II speakers. Klip Xtreme Obsession Stereo Headphones with Microphone- Over-ear with In-Line Command capsule- Large 40mm Speaker Drivers for Great Sound & Bass- mm. [HOST]: Altavoz Bluetooth, altavoz inalámbrico portátil de 40 W (pico de 60 W) con luces coloridas, subwoofer doble graves pesados, radio FM. Highs were sibilant, especially on cymbals. It is easy to setup and connect. I bought this chorus pedal to use with a bass i don't play/own a guitar, so my opinion applies only to bass guitar. These speakers will absolutely shine for you if you let them do their job. CX Highlights Fits virtually any smartphone brands in the market* Great bass-driven stereo sound Easy management of tracks and calls*.