Subwoofer insight.

define integrated

Integrated means of one piece, whole. Its a fact. You could look it up. Bass is integrated when its impossible to tell there are subs, or even any speakers at all. Integrated is when the bass is so clean and clear and extended you are enveloped to the point where the walls of the room dissolve and you feel you are within a holographic acoustic space.

This is impossible to achieve with any one sub. The more subs you use the easier this becomes. With four or five subs it is trivially easy. Virtually any four subs located virtually anywhere in the room will get you there. No single sub located anywhere will. Not even two. More is better.

https://systems.audiogon.com/systems/8367

Would be very interested to hear ieales tell us all how many four and five sub setups he has tried, in order to fully evaluate his credibility on the subject.

You guys won't give up.  MC you have a one track mind!!  I don't see any comment in this thread saying you only need one sub.  The OP actually has 2.  

Then ieales insists on something super complicated, or it's not even good enough for him to discuss (making me wonder why he keeps discussing it). 

Since when does a logo and chrome foot (actually mine don't have chrome feet, they are aluminum) have anything to do with the quality of the product?

You two should get together to talk about how right you both are.

Chaz, - 6 @19hz is getting closer. Now if REL can just go a little lower for less $. The RELs are pretty though.

Finally some real subs:https://www.aia-cinema.com/active-speakers/smsg50.html

@soundermn 
I bin doin' dis a long time.
I got da tools.
Tryin' to set up subs w ½-arsed controls is a YUGE PITA.

IME, high level inputs w a toob amp is a bad idea. Transformers are current devices and many speaker impedances are all over the map in the low end, causing similar input vagaries to the sub. Ergo, the sub is mimicking the eff'd up main low end. BTDT.

Roll the low end out of the mains. If they were any good in the bottom, subs would not even be an issue.

My tongue is about an inch short from all the times I've bitten it when subjected to systems with ½-arsed subs.

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As a composer friend once said on hearing my phase correct sub:

Those little speakers aren't putting out all that gorgeous bass?!?!?!?!?

- No, there's a subwoofer at the end of the sofa. -

Every other subwoofer I've ever heard just boomed!

- Almost...
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Others on later phase correct systems:
- Joe Pass is sitting right there!
- Man, your system is so precise!
- etc.