[brucek]

Is there a point for me to even bother yet with my level of understanding?

I got a cheap checkmate cm-130 SPL ??

parametric equalisers ?

Here is the BFD Guide on the parametric equalizer that is referenced on this site. It is an inexpensive equalizer designed to modify the signal between the subwoofer-out signal of a receiver/processor and a subwoofer. Subwoofers tend to have poor frequency responses created by resonances in a room that we want to repair with an equalizer (you know what that is). This is a special equalizer that can modify all the 'parameters' of its internal filters (gain, bandwidth and frequency parameters).

room modes ?.

Without getting too crazy in an explaination, at low frequencies subwoofers react in a room rather poorly, and exhibit a frequency response that isn't flat or desireable. We need to measure that response and then apply a filter(s) to modify the response to make the subwoofer sound better. We accomplish this by modifying the signal that passes to the subwoofer. We simply use the REW program to help us set up the filters in the BFD.

TMREQ filters ? on TAG McLaren Audio AV32RDP and AV192R ?,

Ignore this. It gives a history of why the REW (Room EQ Wizard) program was invented. These are model numbers of home theater processors.

BFD Pro parametric filters?

Since you've read the BFD Guide now, you're an expert on what this means....

Measurement is stepped sine?

This is a method of measuring a frequency response in a room. We transmit SINE waves at increasing frequencies and it helps decide on filters to enter into the BFD.

with local loopback? for soundcard response compensation and DFT ?

The REW program is run from a PC (you know what that is) soundcard. Soundcards exhibit poor frequency response. We compensate for that poor response by a method called local loopback to make the soundcard theoretically perfect to remove it from the equation.

swept sine measurement? and impulse response extraction ?

Cool REW features you can ignore at this point.

ETF export formats?

REW competition. It can read their files....

The sig gen? provides sine waves to 0.1Hz precision?, sine sweeps (linear and logarithmic)?, square waves and various pink noise signals including "full" range (pink spectrum down to just below 10Hz?), speaker cal?, sub cal ?and custom filtered? to suit your needs?.

REW produces a bunch of different types of signals to help in determining the frequency response of your subwoofer in your room and recommend filters to enter into the BFD.

Note that the app requires V5.0 or later of Sun's Java Runtime Environment (JRE) to be installed,

REW won't run unless you download a program from a company called SUN.

Any more questions?

brucek