Recommendation for sub with high level inputs

Looking to add sub to existing system.   Yamaha Aventage A6A  powering center (Sonus Faber Sonetto ii) , wall height (Infinity Primus P362) , and surround (B&W DM 602), with Rotel Ra1592 integrated preout connected to power fronts (Sonus Faber Sonetto V).  

I listen to (stream) 2 channel music 65 -70 % of the time  - Roon with the hi-fi Rose 250 as my endpoint.

No regrets with the purchase of Sonetto V's, but after having them for a year now, I would like more low end.  

I do not want to connect the sub to the yamaha, thus needing a recommendation for a sub with high level inputs to connect to my Rotel  integrated which doesn't have a sub output. 

2k budget?

Thanks in advance for your suggestions. 






Rythmik Audio offers high level and line level inputs on the non-XLR versions of their "standard size" plate amps  Models with 8", 12", 15", and 18" woofers---and multiples of same (including dual opposed)---are available. Competitively priced.

Tekton.  Just hooked up my lowest tier 2-10s (pair of em) and .. wow.

You can get 2/4/6- 10..  2x10 is equivalent to 14”, but smaller, lighter faster. With integrated 300w amp.

On high level ins for right now waiting on some cables.  

seriously have never heard metallica or Iron Maiden sound so good.. the  bass kicks just pop.

(they also have larger ones too, but I would use those for home theater)

Rel and Rhythmik are great suggestions.  Whatever you do I’d highly recommend getting a pair of subs.  On the cheaper end you could get a pair of SVS SB1000 (non Pro) subs from their Outlet for only $900.  They’re only about 13” square but will still get you down to an honest 20Hz (-3dB), and they offer a 45-day risk-free trial including shipping both ways so you can see if they work for you.  Hope this helps, and best of luck.

Video: only single sub to add Jurassic Park Dinosaur Stomp.

Video and Music: two subs, hopefully located adjacent to the fl and fr.

Low Bass may start out room filling mono, no direction home, however the many overtones definitely have directional info, thus a Stereo pair of subs is desirable.

I'm no fan of ports, and of course self-powered sub(s) helps your main receiver/amp.

Depending  on budget , Svs SB- 4000 sealed subs are more accurate then any vented sub ,the sub weighs 102 lbs even 1 sub sounds excellent and very powerful and theSVS has a great app ,5 year warranty , free delivery 45 day trial , and even free return f not happy 

Rel T7x or T9x for sure. Both are very musical subs that will integrate with your speakers and amp very well.

++1 @scm Dont know why Hsu doesn’t get more love on here. I own two- for AV room and my home recording rig. I’m integrating from the preamp and AV prepro. Since Hsu is self powered, less strain on the mains. Seamless… 

+1 for REL X 2.

I own 2 T9x with a hybrid Yamaha 5.1 / Raven 2 channel system in a relatively large room and they kick. 

if one is trying save some $, the prior rel t-i series are very very good too (t7i, t9i), for less money than the x series used, which makes a difference if one is going for a pair of them... 95% of the performance in my estimation

Rel and Rythmik are great suggestions. Rel from personal experience, Rythmik just from what I've reviewed. Personally, I own dual SVS SB1000 Pros that are fantastic, get low as mentioned earlier, and biggest benefit is you can control them (filters, volume, etc.) from your listening position via an app.No going back and forth and crawling around.

+++1 @scm, @zgas-music, HSU you can get 2 of the VTF-2 MK5's for around $1,500.00 or better yet 2 of the VTF-3 MK5 HP's for around $2,100.00 they are easy to set up and have plenty of options for integrating them into your system.

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My REL S-812’s got a sonic upgrade when I attached DIY "grounding boxes" to their RCA plugs.