BillFitzmaurice.info

Sydney: The sub is about 5' to the right of the right speaker. The mains and sub are all about 8' from the listener. I'll try to answer your question "at what frequency do front and back wave cancel?" The front and back waves of a dipole cancel at all frequencies in the plane of the baffl...

For example, there are drivers available which meet or beat his specifications in performance, including linear and nonlinear distortion, of the Seas and Peerless models he selected, and which are available at 1/3 the cost. I would be interested to know which drivers you refer to. Are the specs mea...

I have done exactly what you have suggested, yes, there's no "attack" in the bass, but that proves nothing about the subjective differences caused by <insert phenomenon here> that vary from one sub enclosure to the next. The driver I asked about in the other thread was first in an EBS encl...

I take it you are talking about directionality when you bring up ear spacing and frequency? There's no question that phase is not an issue at really low frequencies, but that phase/time is primarily how we localize sound from about 100Hz to 800Hz. My understanding is that group delay distortion affe...

I thought one argument for having very low extension even if below musical content was that the phase can be made more linear at the low end. This would result in less group delay distortion. A big dip in the frequency response from a parametric filter boosting at 20Hz but dropping below that would ...

A general question about using a parametric equalizer for subwoofer EQ. Won't the lowest filter in the equalizer (20Hz typically) be a parametric filter instead of a shelving filter and cause really bad phase distortion going below 20Hz?

- Eric