Stereo pre-amps with dual outs for bi-amping and a subwoofer line out


Do they exist? Maybe I’m looking in the wrong places, but I haven’t seen any. 

Definitely not looking for an integrated or AV Receiver.
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Yes ...however, better sound can be had using only one pair of preamp out connections.   Listen carefully and  hear a smaller soundstage and less dynamic contrast.  Also using 1 amp of a higher quality  is better than bi-amping otherwise.
If you like tubes the PrimaLuna Dialogue Premium has extra pre -outs. I have a couple of subs hooked up this way but used to use an audioquest splitter on my last preamp with the same results.