Polk Audio LSiM703 Speakers

The LSiM703 features a 6.5-inch midrange-woofer and a PowerPort bass venting system that allows it to produce a surprisingly deep, punchy low end. While they won't match the absolute scale of a large tower, they provide enough bass presence to satisfy most listeners in small to medium-sized rooms.

The Dynamic Sonic Engine isolates the tweeter and midrange drivers in their own dedicated housing. This design reduces backwave reflections and improves sound dispersion, resulting in a more transparent and precise soundstage.

The LSiM703 includes dual binding posts, giving you the option to bi-wire or bi-amp if you choose. However, it is not required; you can achieve excellent performance using a standard single-wire connection with high-quality speaker cables.

These are substantial bookshelf speakers, weighing nearly 30 pounds each and measuring over 16 inches tall. You will need sturdy, dedicated speaker stands to ensure they are positioned at ear level and properly supported for the best acoustic performance.

The LSiM703 is designed for versatile amplifier pairing, but because of its high-quality construction and three-way design, it performs best with a quality amplifier that can handle its power requirements. A stable, high-current receiver or integrated amp will ensure you get the most out of their transparency and transient control.

The enclosure is built from 0.75-inch MDF with a reinforced 1.25-inch front baffle and significant internal bracing. This heavy-duty construction minimizes cabinet resonance, ensuring that the sound you hear is clean and free from unwanted coloration.