Will these subwoofer be enough ?


I have mc tube pre amp and set of 601 mono blocks with new klipshorns mk6 system sounds good but seems to be missing low end on certain music. Thought I would add a sub and then read here that with the mono blocks two subs would be better.than one .    I like REL as a brand and their classic line will look the part next to my horns . Ax 4k for two of these 12” . That’s about limit of my budget for a sub.  Will two of these smaller subs have the impact I am hoping for or would one 15” REL carbon or similar be better.? Is it highly recommended to have two subs with monoblocks ? 
recently added a Cambridge exn 100 and had  to immediately turn down treble . I have gotten used to it and works perfectly compared to troublesome McIntosh mb50 I had but seems there could be substantial improvement in sound there.  
 

any suggestions would be appreciated. Can buy subs from crutchfield and send back within 60 days.  May do that with the Cambridge unit as well.  
 

thanks everyone enjoy this forum 

hardhattg

Having mono blocks has nothing to do with the number of subs needed.  It's more room and listening experience dependent.  2 subs are usually better than one, however they are considerably harder to integrate than just 1 sub. Once dialed in though, they can be fantastic.

Depending on how loud you like your music, the 2 REL Classics should be fine.  They do look nice and would look much better than many other offerings on the market with your KHorns.  I'd take the 2 Classics over a single 15" carbon.

 

 “601 mono blocks with new Klipshorns mk6"  wow talk about over kill. you may not be getting the bass you expect due to never getting that amp out of idle. 

Regardless, after years of trying to find a sub for LaScala’s I would recommend a servo sub or at a min a sealed design. This is to keep up with the horn loaded bass that’s much faster than most subwoofers out there. Integration will be the larges issue.

Also assuming you have the speakers in corners.

Actually never said not getting bass I expected. The bass is fine and a big improvement over the vintage horns I just replaced.  I love the horn speakers. yes they are in the corners Although the new horns do not have to be , they still produce most bass in corners.  I would just like some more.  
I listen only to two channel music with this system and quite loud in a fairly large room.  Just looking to add “ some “ fast additional bass  . appreciate  suggestions thus far 

thanks 

 

+1 @big_greg 

I run a pair of Rhythmic F12SE subs (with the high gain option) alongside 1980s vintage Klipsch Belles (Sensitivity: 104 dB @ 1watt/1meter) and get good results with lower listening levels of blues/jazz.  I run them all off a 20 wpc Quicksliver integrated tube amp.  Simple and not overly elegant - but sounds pretty decent.  As always, YMMV.

I run modded Khorns with  two REL T9X, this most coherent sub integration I've ever experienced. I don't need much from subs with the careful placement and complete seal of Khorns into corners, I've sealed at sides with water pipe insulation, custom top cap, again sealed to walls. REL's are perfect integration with various amps I'm running 845 SET, 300B monoblocks, Bendix 6094 push pull monoblocks. Running only one run of wire to positive binding posts, one negative to amp chassis grounds, sub crossover at 32 to 35hz, volume only a few notches above minimum. In room bass response at listening position is spot on.