Receiver bass-management implementations vary, causing differing user experiences.

Evidence

Figure 8.4 illustrates one version of bass management in which the LFE (low-frequency effects channel in movies), containing frequencies up to 120 Hz, is allowed to pass unmodified to the subwoofer. Some implementations low-pass filter the LFE at 80 Hz before the subwoofer output, discarding some of the LFE signal. This is not encouraged. Neither are implementations that completely ignore the LFE. This information may or may not be available to consumers—one reason why different users may have different experiences with bass-managed systems. — Toole, Floyd E, Sound reproduction- the acoustics and…, 773

Categorization

• QUESTION: Whether a particular receiver discards or preserves the LFE band is often unadvertised, worth verifying before buying.