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Active di box for bass.
Born out of necessity in studios such as motown and united sound systems to accommodate the electric instruments emerging in the 1960s direct boxes also known as dis which stands for direct inject began as a way to resolve a basic impedance mismatch between electrodynamic guitar pickups and sensitive studio electronics.
There are two types of di boxes and like most electronics this boils down to active and passive and which to get is pretty important and depends on your bass circuitry.
An active di contains a pre amp which boosts your instruments gain a little before the signal is sent.
Ye old fender p bass was happy the thud had returned.
Although many modern dis are far more.
What is a di box.
On top of all this this active di box can be powered with phantom power a separate adapter or a 9v battery.