I have been looking for options for some speakers and a sub to go with my computer. I believe the best route at the moment will be some powered speakers such as the swan d1080 iv or studio monitors with a subwoofer that has rca in and out to utilize the crossover of the sub. However, rca out does not seem to be very common. Additionally, it seems that all do not utilize the crossover which would defeat the purpose of the rca out for me. I have only seen a couple of options that use this such as the SVS PB-1000. However, even this one says "Stereo line-level RCA Input & 80Hz High Pass Filtered Output connections." So the variable crossover is not being utilized. But even an 80hz fixed crossover is better than nothing. The monoprice 12" also seems to have the rca out, but theres do not even seem to utilize a crossover and they say the rca outs are good to daisy chain multiple subs so it would seem they are transferring the low end as well via the rca out. The wharfedale sw150 has rca out, but I could not find any info on it.
Given the limited options, I decided to look at a diy sub kit such as the Dayton Audio T1003K 10" Titanic Mk III Subwoofer Kit. Most of the kits appear to have the line level in and out connections which is perfect. But looking at some of the separate amps, for example the spa250, it says "Line-level full bandwidth (10 Hz- 20 kHz) outputs/throughputs for adding or "daisy chaining" additional amplifiers." So this suggests it is operates the same as the cheap monprice sub.
So I guess my question is, are there any kits you can recommend that have an rca out connection with a variable or fixed crossover because options seem to be very limited. I have never built a sub or a speaker, so a kit seems to be the best bet as opposed to mixing and matching individual components unless you can suggest all the required components. The dayton audio video made it seem as easy as gluing some padding to the interior of the cabinet and then screwing in the amp and woofer. Is this really all that is involved? Are these kits worth the cost over a preassembled one from say hsu or svs? Quality wise, are you getting more for your money? Is the dayton one you would recommend or are there other options to consider? Any guides that walk you through the process step by step would be awesome. I don't actually have the equipment to assemble the cabinet myself, so a preassembled cabinet is a must.