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Gear / Technical Help => Battery Boxes, Preamps, Mixers, ADCs, and Processors => Topic started by: deadhoarse on September 22, 2004, 12:33:51 PM

Title: SP-SPSB-1; What is the rolloff calculated against?
Post by: deadhoarse on September 22, 2004, 12:33:51 PM

Before I asked Chris at Sound Pro's, I figured I would ask here.

There are seven options for rolloff on the SPSB-1 battery box: 16Hz, 69Hz, 95Hz, 107Hz, 160Hz, 195Hz and 888Hz.  Does anyone know what those Hz values were calculated against? (What input impedance)

Title: Re: SP-SPSB-1; What is the rolloff calculated against?
Post by: kuba on January 30, 2005, 08:09:36 AM

So? Did you ask Chris? I'd like to know as well.

You can always disassemble the box and figure it out  ;)

Title: Re: SP-SPSB-1; What is the rolloff calculated against?
Post by: jk labs on January 30, 2005, 11:25:37 AM

Quote from: deadhoarse on September 22, 2004, 12:33:51 PM

Before I asked Chris at Sound Pro's, I figured I would ask here.

There are seven options for rolloff on the SPSB-1 battery box: 16Hz, 69Hz, 95Hz, 107Hz, 160Hz, 195Hz and 888Hz.  Does anyone know what those Hz values were calculated against? (What input impedance)

It comes out to 10 kOhms

Title: Re: SP-SPSB-1; What is the rolloff calculated against?
Post by: cgrooves on January 30, 2005, 12:35:14 PM

Check out this thread:  http://www.taperssection.com/yabbse/index.php?topic=31681.msg399650#msg399650

for other info on this topic, and a correlation chart for using these battery boxes with impedances of 4.7Kohm & 47Kohm (i.e. m1's)