Attenuation required

Taking the direct outs from the PA system mixer Mackie Onyx 32.4, found that they are too hot for the XLR inputs of the Tascam US-1641. D made attenuators for me like below:

Only it was not to ground, but to signal return. Checking out the specs in the manual, found that input impedance for the XLR input is 2.2k ohm and for the jack is 10k ohm. So, made the voltage divider circuit above, with a 10k resistor on top, and a 2k below. For the XLR connector, the connection was like

red wire --- 10k resistor --- pin 2 ---- 2k resistor ---- pin 3.

Later, found similar pad circuits with pix of XLR connectors with resistors soldered in. With the attenuation, which turned out to be around 20 dB, the direct outs are fine for the Tascam US-1641, with around 6-10 dB of headroom. Here, what I mean by headroom is that the peak level reaches -10 dB or so when the Mackie direct-out is at its highest level, when the input gain control at the Tascam is turned all the way down.