Subwoofer speakers suggestion

[5hinka]

Hello
ive moved to new Appartment with my old speakers.
speakers b&w 600 series :
dm603 s3 for mains
dm601 s3 for surround
Lcr60 center

avr denon x4700h

listening music and movies on -20 to -30 db on AVR

music / movies 50/50

the Appartment is on attic - one open space - 120 m2 and total 325 m3 means 11500 qubic feet’s.

first: I feel the lack of bass and low frequencies
in future I’m planning to buy revel performa or performabe speakers
but
now would like to start from buying subwoofer

im thinking about svs

first question:
is sb3000 will be enough? It’s best svs in white (it would be nice to have white not black box)
mayby will buy second same in future but it would need wireless connection

or is it worth to buy sbs sb16 ?

there is Appartment image in attachment


Thx
5hinka

 

[kacos]

I have a pair of svs pb-3000 with 4x N804s in a 5x9x2,5m (~45m²)
Using Dirac bass control they blend in pretty well.
Your room is bigger, so if 2 aren't enough (doubt it) you can go for 4 subs (4 corners or in a cross) which is the recommended practice for HTs anyway..

 

[5hinka]

I have a pair of svs pb-3000 with 4x N804s in a 5x9x2,5m (~45m²)
Using Dirac bass control they blend in pretty well.
Your room is bigger, so if 2 aren't enough (doubt it) you can go for 4 subs (4 corners or in a cross) which is the recommended practice for HTs anyway..

This is my concern. My room is 3 times bigger
is it even possible to get proper bass in such big room?

 

[kacos]

This is my concern. My room is 3 times bigger
is it even possible to get proper bass in such big room?

Start with 2 placed and calibrated correctly and add 2 more if you still aren't satisfied.
Check the pb4000sas well as an alternative pair.
Don't buy just one bigger sub