The "Twin" version of EMG's Music Man Bass replacement is known as the MMTW. Based on EMG's triple coil 89 Guitar Pickup the TW is two pickups in one, single-coil and dual-coil, and both are totally noiseless. The TW uses EMG's popular ceramic and steel design for a nice transparent, not abusive high end along with a low-end that is just plain thunderous. Similar to EMG's MM-CS the TW has wide spread bobbins (1 inch) combined with a large coil surface area that gives the EMG-TW a most amazing bass tone. The single coil pickup is the same as EMG's Jazz Bass (J) Pickup, strong in mid-range. This is the perfect pickup if you’re planning on building a bass with only one pickup in the sweet spot. The MMTW comes with a push-pull pot that can be used as either a volume or tone control, or you can substitute a dpdt switch.
When using two of the TW Pickups in the same instrument it is not recommended that BT or BQ Systems be used. Each pickup requires a push/pull pot for switching from single coil to dual coil so the balance control included with the system can’t be installed.
If you want to use the balance control, consider switching single/dual coil outputs with a DPDT toggle switch(s) instead.
