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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

Showing 1 response by audioman58

audioman58's avatar
audioman58
4,285 posts
 
I have a very good tube untegrsted in Ayon 
and a very solid Yamaha 2100 both have active preamplifier sections , SVS, or crutchfield sells a resistor adaptor that connects directly to speaker outs on the amplifier , it is more accurate 
and better Bass control 
if you sub has speaker inputs, like rel  has it’s a very good setup .
I use this which it has a + and - per channel ,you use awg 16 wire I use Neotech and crimp bananas to one end to go into the speakers ,the other side plugs into the adaptor board and there 
you plug in rca sub cables into the board ,the other side into the sub input , it’s sounds like a lot of work ,but it’s not and only
$30 I Velcro to the back of the audio stand.
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