It’s an extremely common question: “Is my bass an active bass?”
The short answer to this is another question, “Does it have a battery?”
The term “active” means that there is a battery in the bass. Most commonly, the battery is being used to power a preamp. The preamp uses a battery and thus the instrument is powered (active).
Occasionally, the pickups on the bass are active. A bass with active pickups would, of course, also be considered active.
However, most pickups – even in ‘active basses’ – are actually passive. A bass can have an active preamp with passive pickups. In fact this is the most common set-up.
EMG, MEC and some others pickup manufactures have models that are active and require a battery. Sometimes these pickups are used with preamps as well, but not necessarily.
We talked about this a little bit last week when someone was wondering whether or not they should have a preamp with their EMG 40DC pickups.
Many preamp manufacturers are designing their control harnesses with passive pickups in mind, as they are more common both as retrofit parts and for OEM use.
Some instruments have a switch which changes the signal from active to passive. This switch is not changing the pickups, or how they function: the switch is not making a pickup active or passive. It is changing the signal path for the controls.
More precisely, an active passive switch is a bypass switch. When in ‘passive’ mode, the signal bypasses the active part of the preamp (which is typically the EQ section).
Is there a question that’s been eating away at you? Our techs can help! Whether it’s about active basses, passive preamps, bridges, tuners, or just about anything else on your bass. Send them an email at sales@bestbassgear.com
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