Can you run a subwoofer without an amp?
Do You Need An Amplifier for Your Subwoofer? In nearly all cases, the answer is yes. Unless you have a system in your car or boat that is already powering a subwoofer, you’ll need to find an amplifier that will power your sub.
Can you connect subwoofer directly to speaker?
If you are using your subwoofer with a stereo receiver that lacks a subwoofer output (and many of them do), you can connect the subwoofer using an extra set of speaker cables, as shown above—provided the subwoofer has speaker-level (speaker wire) connections, as the picks in our Best Budget Subwoofer guide do.
What happens if you connect subwoofer without amp?
The car subwoofer will produce distortion free sound for the car audio system. Typically without an amp the standard speakers and the subwoofer output won’t produce a louder sound and the bass frequencies will be flat.