Improving sub quality

seandtaylor99,
I just moved my subs out in front of my center channel and the sweeps on TrueRta look great.When I had them in opposite corners (front) I had a null from 42hz-68hz at the listening position.They are really flat from 10hz to 100hz.I ended up changing the xover frequency because they extended so well out to 100hz.

When I purchased my Rel,Sterling Trayle was still employed with Sumiko,the distributor,at the time.He strongly emphasized that I did NOT use spikes.He felt that the REL was designed to have a certain distance from the driver to floor,and the spikes could,would screw this up."Pressure loading",had to be correct,according to Sterling.Makes sense,to me.

In any event,with the numerous little movements I had to employ,over time,I think that had I used the spikes,I NEVER would have been able to easily move the SUB into optimal position,as I have.The current sound is seamless,and I know everyone who spends DOUGH is compelled to feel this way.In my case,as others,I'm sure,I could not be happier.Good luck!

Keep in mind the new Brittania woofer is front mounted. Like all speakers with front mounted woofers, using spike WILL improve the coupling of speaker to the floor and prevent the drivers from shaking the whole box and smear the sound. Subwoofers are less sensitive to time and image smear, but you will still gain pitch and speed by rigidly couple the sub to the floor.

Old ST series do not benefit from spikes, but that is NOT true with the new B series.

KGveteran, I'm glad it worked out for you. If aesthetics permits you might want to try placing the sub non-centered, following the Cardas placement rules at

http://www.cardas.com/content.php?area=insights&content_id=26&pagestring=Room+Setup

This placement was designed to minimize standing waves, and I figured if it works for the main speakers it ought to work for a single sub .... and I've found it does work, very well.

Semi's point is a very good one. It would make sense to me that a front firing sub would behave very differently to a down-firing sub.

I find it interesting that the B-series are advertised on Sumiko's site, but there's no mention of them on REL's home page. Are they designed only for the US market ?
UK and US requirements are a bit different, due to the larger rooms in the US.