I don't understand at all, the 2 RCA output are "left" and "right" output for stereo if you use the KRK sub with the speakers the signal first goes to the sub and take only the bass spectrum signal so the speakers don't anymore need to recreate the low bass resulting in lower distortion.
DAC out > Sub in > Sub out > Speakers In
The stf-2 are primarily made for Home theater and the Sub In RCA are usually for HT receiver. You can't connect Active speakers on it.
I'm talking about a DAC with two SETS of RCA outputs (2 x left; 2 x right).
You're right, you could run the monitors that way direct. It is more convenient, i don't deny that. But you're selling yourself short if you choose to go with a mediocre sub like the krk 10 just for the sake of convenience. There won't be any more headroom/less distortion just because the monitors are not playing those low frequencies anymore. These are active monitors we're talking about here, not passive. If you need to know, i've done tests on my own BM5As and there's absolutely no difference with the monitors' headroom with/without them playing the low frequencies. What you said only applies for passive setups.
The specs read, "Frequency Response: 34Hz – 50Hz to 130Hz Variable (+/- 1.5 db)". And i'd make a solid guess that they're measuring this with in-room gain (as do many brands), so the figures are inaccurate. The Hsu STF2 goes down to 25Hz on paper, but that's conservative. If you do search online, people have measured pretty decent output down to 20Hz. Hsu doesn't make this claim because they don't inflate their figures.
And there's no such thing as STF2 being for home theater use only. Many people are running them in a stereo setup. As long as said DAC has two SETS of RCA outputs, it isn't a problem.
"Can I connect your subwoofers to my computer or computer speakers?
It is relatively easy to connect a HSU subwoofer to certain computer sound cards. These sound cards have a dedicated subwoofer output. Without a subwoofer output on the card, it is still possible to hook up a VTF or STF-3 subwoofer, since these subwoofers have stereo inputs. Use a Radio Shack splitter/adapter (one 1/8-inch stereo male to two 1/8-inch stereo female). Take the stereo 1/8-inch output from the computer sound card. Then feed one set to the computer speakers and another to the subwoofer using an adapter (1/8-inch stereo male to two RCA male). Please be aware that connecting a HSU Research subwoofer to computer speakers (as opposed to computer sound cards) may be impossible."
Edited by noinimod - 5/18/10 at 9:16am
