New Bartolini Sound Bites video. P25P & P25J-T.. P Soapbars have thick, deep tone with huge bass response giving you P-Bass voice in a soapbar bass. These are a flexible solution for great tone. The P25J-T are our legendary Original Series J-Bass® pickups in a soapbar shape, giving bassists unprecedented flexibility in tone and construction. They are full and warm for that vintage tone you want with massive lows and low-mids while enhancing the natural voice of your bass.