[Elecraft] Subreceiver filters?

[Don Rasmussen]

If you order the stock K3 or the stock subreceiver,
the widest you will hear is 2.7khz since the receiver
MUST have a roofing filter and the 2.7 filter is
provided as stock. If you want to hear wider audio you
must buy the AM filter (5KHZ) or the FM filter (15khz)
as an option. 

> When you buy the subreceiver does it come with the
> standard 2.7 or is it filterless? Can you disable
> all the filters in the main receiver except for
> transmit?
>
> Thanks,
>
> Bill  N4ZI