The DCBD1SET Dual-Ceramic Bar/Hum Cancel Pickups for 4-String Bass from Aguilar use dual-ceramic bar design to capture all the detail and character of your tone. A suitable replacement to the Bartolini BC, the pickup's uniform magnetic field ensures that no information is lost, making this a great pickup set for dynamic playing styles. Full-bodied tone with a rich sustain characterizes the sound of the DCB series, bringing out the best qualities in any instrument.