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Adding a sub woofer?

Running a Planar 6 to Icon Audio Ps1 Mk2 to Quicksilver Mid Monos into Klipsch RP8000F speakers. Want more low end, thinking of adding a sub. The mono blocks don't have a dedicated sub output so I was thinking about something like a PSB 250 which has both pre amp and speaker level inputs with speaker level outputs. A couple of questions.

What are the pros and cons of using the sub's preamp level inputs vs the speaker level inputs in this application?

And more importantly, right now my setup is pretty much tube analogue the whole way (and aside from the soft low end, I absolutely love the overall sound) - but does an inline sub like this do any processing, will it color the mids and highs in some way or is it just a clean pass-through in terms of sending the signal along to the speakers? 

Thanks for sharing your thoughts. 
Ryan
spotconlon
tuberculin
81 posts
 
So that's what REL means. Cool!I have two T7i's and couldn't be happier. I'd have more, but I just don't have space in my 11X12 room.
tablejockey
3,894 posts
 
REL are the initials of the original founders name
Richard Edmund Lord

tomic601's avatar
tomic601
12,911 posts
 
Longbow and Swarm...somebody will figure that out.


dhite71
318 posts
 
If I may add my inquiry here to this fresh thread, it is related to the integration of the sub and would likely be good info for the OP. I have a Hsu Research TN 1225 x 2 sub set up that I have used for 20 years. I had it set up with RCA out of my preamp with the mains running full range. I recently upgraded my mains to Wilson Sophias that have much better low extension compared to my previous speakers. What I loved about the Hsu TN model was the separate amplifier that sits on your rack with a volume knob. The bass varies greatly from album to album so I was easily able to adjust the volume up/down as needed when I put on a new record. I disconnected these subs with the Sophias and am finding myself missing that really nice low extension, especially at lower volumes. I would like to try something more modern, like the REL.  I am not sure why, but the Hsu sub did not integrate with my Sophias as well as my previous speakers.  I felt it was because they didn't extend low enough and were in competition with the Sophias.  With my old speakers, the bass was immediate once the sub was on but barely noticeable with the Sophias.  My concern is getting a sub with the controls which are not as easily accessed dialed in to work all the time. Do you find that once you get the crossover and volume set for your system on a traditional single box sub that it doesn’t require adjustments?
atmasphere's avatar
atmasphere
11,800 posts
 
Do you find that once you get the crossover and volume set for your system on a traditional single box sub that it doesn’t require adjustments?
I might have a situation similar to yours. My speakers go to 20Hz but I have a standing wave in the room that cancels bass at the listening chair even though elsewhere in my house the bass threatens the plaster. To break up the standing wave I added a pair of Swarm subwoofers, asymmetrically placed in the room. Once I got everything working I did not have to make any further adjustments regardless of the album playing. With a single sub this would be harder to do since you have less ability to break up standing waves. So how much bass you get will vary from album to album.
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