formats

Bandwidth in Octaves Versus Q in Bandpass Filters

In order to correctly set complimentary eq curves for speakers you need to be able to find the appropriate frequency center and then adjust the bandwidth.

Bandwidth is adjusted in two formats depending on who is providing the EQ. Octave and Q. These two terms are related but not the same. In order to use them you should understand their relationship.

WIKI – Bandwidth
WIKI – Q factor

Here is a Rane article written by Dennis Bohn on the matter:
rane.com – Bandwidth in Octaves Versus Q in Bandpass Filters
Here is the PDF version of the same article:
rane.com – Bandwidth in Octaves Versus Q in Bandpass Filters PDF
Here is a spreadsheet that coverts from one format to the other:
rane.com – Bandwidth vs. Q Calculator