Is my $1700 svs pc-13 ultra enough? 10x10 room!!

[Predict99]

I feel as if I'm not getting the full proformance out of my sub.

I bought all new equipment. Denon x3300 105watt, svs ultra bookshelves, and pc-2000.

I did the Odyssey and svs helped me with the settings for the denon. I have a 10x10 room. Bookshelves sound amazing but my sub seems to be kinda weak. I called svs they said that my pc-2000 should be blowing my small room away. I wasn't impressed. At volume levels on +2db and %80 on the sub I wasn't happy.

I upgraded to the pc-13 ultra now. They told me to run it at 5db. That it would be safe. I also have the Avr at +6 on the bass. It rocks the room at +1db and with the settings mentioned,but this is almost maxxed out. Why am I having to push this $1700 sub so hard for my small room?

I speak to svs and it's just answers that don't help. One lead tech said something different tho. He said maybe it's because I'm not using a center speaker and my denon is limiting the bass. I couldn't back up the theory from Google so Idk.

With same settings I have my cromecast hdmi plugged into the reciver playing YouTube music. After some time of 90-+2db I get a smell from the sub. Is it because of my denon bass being turned to high? Or corrupted audio from YouTube?

When purchasing the pc-13 ultra I was hoping to get something overkill for my room, but what I got was a sub that was just strong enough to shake some walls when explosion goes off in movie.

Are my expectations to high or am I getting what I paid for?

This is first time buying a receiver and speakers. I'm beginner looking for a great movie experiences.

I do think I feel more bass when I plug my phone aux right into the sub aux. But that's not proven yet.

My sub is in the corner of my room against the wall. I dont believe a sub of this level should matter on placement because I would expect it to blow away my room at any location.

Please help me out.

 

[agarwalro]

PC13U in that room should make your hair tingle.

It has nothing to do with not having a center speaker.

I'm going to call this one a placement issue combined with room mode induced suck outs.

Can you give us a better understanding of the layout. A diagram (hand drawn sketch) would be best.

This can be resolved.

 

[William Lemmerhirt]

For starters, welcome. Couple things maybe. I would start by making sure all speakers are set to small, and the xo is set in the 80-100hz range. I’m assuming in that small of a space, the couch is right up against the wall. In that case, and with the sub in a corner, I would agree that you should be getting some good slam. The problem is most definitely the room, more than the sub. Square rooms tend to be problematic for acoustics, and especially bass. Bass tends to get vacuumed out like you’re in outer space, so setup can be trickier. Hopefully someone with “square room” experience can help further. Ideally you’d have measurement equipment and graphs to evaluate, but that’s a different turn in the rabbit hole.

 

[Predict99]

PC13U in that room should make your hair tingle.

It has nothing to do with not having a center speaker.

I'm going to call this one a placement issue combined with room mode induced suck outs.

Can you give us a better understanding of the layout. A diagram (hand drawn sketch) would be best.

This can be resolved.

The room is really just a square edge room. 10x10x10. Bed against wall corner and sub in the other corner.
Corner A, B, C, D. Four letters each being a corner.
A, bed
B is the door
C is sup
D is a pc desk.

I'll take photos this week when I get home.

Everything is set to small
I use the rca audio cables from svs.

I do have maybe 2feet of craw space under my house. One bedroom on other side of the wall.

Placement was a consideration but I feel I should be getting much more bass even if it's in bad location.

But I'll supply more info with pics this week. Hopefully someone can help. Me figure this out.

 

[Predict99]

 

[Predict99]

That's a pretty accurate drawing. 10x10x10. No where else to put the sub. Even if it's not in the perfect spot it's hard to believe that the location is limiting it as much as it is as barely shaking the walls.

 

[shadyJ]

The problem here is that we do not know your expectations. The sub could be hitting 120 dB in there, but if you were expecting 130 dB, than it could be a matter of expectations. You would need to measure it to make sure it is doing what it is supposed to, not what you expect from it. I would think a sub like that should be able to hit 120 dB in that room, maybe a tad more. That is a lot of SPL.

What are the settings you have in the AVR? What is the crossover frequency? Are the speakers all set to small? What is the gain level on the sub's volume knob?

 

[tyhjaarpa]

I would do a sub crawl and see if it helps.

 

[lovinthehd]

I'd assume it's the room, and not just a square room but a cube is even worse. You might do a little searching on the subject of subwoofer acoustics in square and cube shaped rooms...might try various terms but something along these lines.

 

[KEW]

Yes, either of those subs should generally be overkill in such a small room!
Something else is going on and it most likely has to do with your room interactions at low frequency.
For lower frequencies, room acoustics can be by far the biggest impact on what you hear.
As mentioned before, you should do the subwoofer crawl. Even if you cannot physically relocate your sub, this would confirm the the room interaction is the problem and often even a 6-12" change in location of sub (or listening position) can make a significant difference.

 

[MrBoat]

Two much stuff in the room and the bed is turned the wrong way for what you are expecting. Leave the L desk where it's at, turn the bed 90 degrees on the door wall in the center, or favoring towards the door of the room, and either get rid of the "other" desk or move it over by the door on the closet wall if you have to have it. You may have to stutter step around the end of the bed between it and the L desk, but you will have more options where to put the subwoofer, or perhaps 2 subwoofers, preferably.

 

[agarwalro]

Wanted to post this earlier, but didn't have access to the pic.

This is the ancient SVS PC20-39 in the front right corner. It is weaker than the PC2000 you returned. It was more than sufficient (even for dubstep) in the 15x22 ft. room. I am baffled why the PC13U is not enough for your room.

Going to see the posts you made about room layout, etc. We will get your teeth rattling soon enough.

 

[j_garcia]

The problem is the cube room, not the sub. You'll need some sort of bass traps probably because you will get a lot of cancellation no matter where you place it. Your seating position relative to the sub will also be important.

 

[Predict99]

Few more pictures

 

[Predict99]

Room

Pic

 

[Predict99]

Room placement is really suppressing me this much to where I have a concern?

Is there a tool I can use to measure the sub?

Also I had concerns about the smell of get from when I listened to music.

 

[Predict99]

 

[Predict99]

I know my expectations are different than everyone else, and placement may be terrible but that's why I got such a powerful sub.

But it's barely impressive. :/

 

[j_garcia]

The sine wave for most low bass is 3-4x the size of your room, so you will get cancellation, period. As I already said, the sub is not the problem, the room is. Even with room correction, you will likely have less output in this room. Normally in an irregular size room, you would get cancellation at certain frequencies. In a cube shaped room, the number of frequencies experiencing cancellation due to room modes increases greatly, so a more powerful sub won't make a lot of difference.

The smell is likely new electronics smell from the amp, it will go away.

 

[agarwalro]

Any chance you could move the sub to sit between the desks. That location will give better results.

This may sound paradoxical, you may need to downsize to get more bass. Having a smaller subwoofer tucked under the desk will give you the best results (assuming your primarily listening at the PC desk). By sitting near field, you may overcome some of the suck outs and get better results.

For the cost of the PC13U, you can get 2 of the SB2000 from the outlet. Place one under the desk and the other next to the closet.