Topic: SP-SPSB-1; What is the rolloff calculated against?

[deadhoarse]

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)

[kuba]

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

You can always disassemble the box and figure it out 

[jk labs]

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

[cgrooves]

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)