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Dual subs and or speaker uograde

I have Monitor Audio Gold 300s as my front mains. All Gold speakers 100s for surrounds, 300Gx center, Gold GX rear surrounds.
Paradigm Sub 12 Reference as my sub.

Room is 10'w at front, and 18' wide at rear. 7.5'H, 22' long and 13' from front wall I have my 3 theatre seats,

I feel I need a little more umph for watching concerts on DVD.

I have about 15k to spend.

I am considering dual Persona subs or dual B&W DB1D subs to augment bass.

Other option is Persona 3F with 1 Persona sub ( a little over my budget) or Persona 3F with 1 B&W DB1D sub (on budget) or Persona 3F and 2 SVS Ultra16 subs.

Another options is GoldenEar Triton Reference, but due to 10' front wall with 100' screen, I'd need to put speakers fairly close to front outside walls 10-12"


Appreciate your opinions.

My audio store sells all except GoldenEar. They have given me great service.

My amp and preamp are NAD M27 and M17. I'm happy with the quality of the sound of my Monitor Audio 300s. Great sound. Not enough umph.

Thanks Roger
enyaface
erik_squires
16,051 posts
 
I would absolutely not attempt speaker changes for this. Those are fabulous speakers, but maybe a second sub.

The very first place to start is room acoustics:

ATS Acoustics
GIK Acoustics

Wall panels will reduce mid/treble hash and output, and improve clarity.  Bass traps will make room correction work better.

Regardless, seal the main ports and re-run the room calibration. You are allowed to raise the bass level by the way, if you don't like the end result.  This will reduce amplifier strain, Doppler distortion and driver excursion.

After you have done the room calibration, a second sub could be really good if you have flexibility in placement.  If you want to simulate this, try Room EQ Wizard's room simulator. 
erik_squires
16,051 posts
 
PS _ You can also use REW to help you place your single sub more ideally. That is also a good thing to do before buying anything.
millercarbon's avatar
millercarbon
12,531 posts
 
Won't need to spend anywhere near $15k but go for it if you must. Won't need to though because when it comes to bass more is better than better. In other words don't buy one or two subs with your $15k, buy three or four. 

Hard to believe I know but Duke had a customer with a $30k sub budget who compared and went with four of his Swarm for $3k because it was better than any one or even two subs he could buy for $30k. So if you must spend the money then get four. 

I'm saying this fifteen different ways because its so darn hard to get people to understand. Once they do, every single one who does it is blown away. Basically, there is no amount of money you can throw at this problem that will solve it as good with one as you can easily do with four, and for much less. Do a search. You will see.
musicaddict
370 posts
 
I think the first two responses you received are very well-informed and that's great to see/read. Although Monitor Audio is not for me they make great speakers and you own some. I'm surprised they are not dynamic enough, but subs will help. (Possibly high pass to the Gold 300s very low 50-60, to relieve 40 and below, and to play louder at higher Hz? I never had success but who knows; they say it can work.)

Room treatment is a good recommendation (I still need it myself!) with which I fully concur. Well done treatment works wonders. Good luck.

Get the subs for that rock-solid foundation to your music and movies. I need to read more about 3-4 subs versus one big one, or two. That Audio Kinesis Swarm set of four is supposed to be quite effective at 25oo or so. Along the same line, 3 or 4 well-placed SVS SB-2000s barely discontinued, each with it's own amp and room location. And there are plenty of deadly single subs out there.
erik_squires
16,051 posts
 
@musicaddict - I've never heard a system, crossed at 40 Hz which didn't sound better crossed at 80 Hz when properly done.
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