Posts Categorized: Audio

RPG Modex For Reducing Only Bass Room Reverberation

RPG Modex For Reducing Only Bass Room Reverberation

  I find that some home theater rooms that employ sound isolation techniques have issues with the lowest frequencies having excessive reverberation compared to the Dolby standard for theater sound reproduction. I suspect this is caused by the fact that the low frequencies that are not trapped effectively in a non-isolated room are in an… Read more

An Examination of Side Surround Speaker Designs

An Examination of Side Surround Speaker Designs

  I encounter a variety of side surround speakers in homes in the course of my work. The designs that I find to generally be most effective in a home theater are ones that have the speakers at about a 90 degree angle to each other like that shown in the Klipsch KS-525-THX above. Side… Read more

Emotiva UMC-200 Home Theater Preamp Processor Review

Emotiva UMC-200 Home Theater Preamp Processor Review

Emotiva recently introduced a new preamp processor to their line of exceptionally priced products. This preamp processor is priced at $599 and includes many features that you would expect from a higher cost preamp processor. These include 4 HDMI inputs, 1 HDMI output with ARC, analog and digital inputs for a variety of non-HDMI audio… Read more

Confusing LPF of LFE With Bass Management

Confusing LPF of LFE With Bass Management

I find that many people are confused about the bass management and LFE frequency settings in their surround receiver. Hopefully, the description below will help clarify this. Each speaker in these systems can have a frequency set such that sound below that frequency at a 12-24db/oct slope is transferred to a subwoofer when one is… Read more

Car and Boat Audio Calibration

Car and Boat Audio Calibration

  Many of the head units found in high-end car and boat sound systems contain adjustments similar to that found in a surround sound system. To obtain the best sound from these systems all of the parameters must be adjusted properly. They include parameters like fader, balance, subwoofer level, subwoofer crossover frequency/slope, parametric equalizer Q/db/Hz… Read more