Paradigm Founder 40B

Yes, these are passive speakers, meaning they do not have built-in amplification. You will need to connect them to an external stereo receiver or power amplifier to drive them.

They are highly versatile and work well in both environments. While they excel in a dedicated two-channel stereo system, their design allows them to integrate seamlessly into a multi-channel home theater setup as either front or surround speakers.

Each speaker measures 14.5" x 7.8" x 12.8". While they are designed for bookshelves or stands, you should ensure you have enough clearance around them to allow the rear-ported design to breathe, which helps maintain accurate bass response.

With a sensitivity rating of 92 dB, these speakers are quite efficient and can reach satisfying volume levels without requiring massive amounts of power. However, for very large rooms, you may want to pair them with a subwoofer to fill out the lower frequency range.

Because these speakers weigh 23 lbs each, you should use sturdy, dedicated speaker stands that can support their weight and provide a stable base. Ideally, look for stands that allow you to secure the speaker to the top plate to minimize vibration.

The Founder 40B has a frequency response down to 48 Hz, which provides solid, punchy bass for most music genres. If you are using them for home theater or listen to bass-heavy music, adding a dedicated subwoofer will provide the extra depth and impact that bookshelf speakers cannot physically reproduce on their own.