MartinLogan BalancedForce 210

The BalancedForce 210 uses two drivers mounted in opposition, which physically cancels out cabinet vibrations. This means the subwoofer stays stable and inert even at high volumes, resulting in cleaner, tighter bass without the distortion or 'blurring' often caused by cabinet resonance.

Yes, the BalancedForce 210 supports simultaneous LFE and two-channel connections. This allows you to keep both your home theater processor and your stereo preamp connected at the same time, with independent settings for each.

The 25Hz level control is designed to compensate for room gain, which is the natural boost in bass frequencies that occurs in smaller or enclosed spaces. It allows you to fine-tune the output at the very bottom of the frequency range to prevent the bass from sounding boomy or overwhelming.

It comes with custom Energy Transfer Coupler (ETC) spikes, which are designed to provide maximum stability on carpeted floors by coupling the cabinet directly to the subfloor. If you have hardwood or tile, you will likely want to use protective discs or pads to prevent the spikes from damaging your flooring.

The unit features custom low-pass filters that allow you to precisely match the subwoofer's crossover point to your main speakers. By adjusting these filters, you ensure a seamless transition between the speakers and the sub, preventing gaps or overlaps in the frequency response.

The tone sweep feature helps you identify specific frequencies that cause rattles or resonances in your room. By playing a sweep, you can pinpoint exactly where your room's acoustics are causing issues and adjust your placement or settings accordingly.