I'm looking a 2nd subwoofer for my basement setup

[3db]

Currently I have a Rythmik LV-12R sub tuned for deep bass. In its current location, I feel the deep bass 20 - 40 Hz region but I do not get much bass between 40 - 60 Hz. I moved the sub to another location in the room and I got the 40 - 60 Hz I was looking for but the deep bass disappeared. My AVR crossover for all channels is set to 80 Hz. So, I'm looking for a 2nd sub to put into the room that gives me the 40 - 60 Hz slam I'm looking for. That being said, I have the following questions

1. Since my 1st sub is ported, I would assume that the 2nd sub should be ported as well for easier integration.
2. Can I mix brand names for the sub as long as they are ported?
3. How many of you are using mixed subs?

As you know, I'm cheap being near retirement so I will buy a used sub.

 

[XEagleDriver]

3db,
FWIW: I added a 2nd sealed sub (SB12-NSD) to original ported sub (PB10-NSD) and it integrates beautifully IMHO.
- PB sub supplies movie impact, the SB evens out the room and is no slouch on movies either.

Experimented with (listened, not measured):
- One PB
- One SB
- Two SBs (from a 2 ch set)
- PB + SB
CONCLUSION: PB + SB was the winner to my ears, in a 18'x15'x9' room.

AVR is a Denon X4500H with MutiEQ X32T and its dual Sub EQ HT feature.
- I am probably too lazy (or stupid) to learn/do REW, LOL.
Cheers,
XEagleDriver

Sent from my SM-G975U using Tapatalk

 

[mazersteven]

The second sub should be exactly the same as your first Sub in my opinion

 

[3db]

Anyone else using different subs in the same room?

 

[AcuDefTechGuy]

Definitely not going to talk you out of getting a 2nd sub since multiple subs is probably always a good idea.

But until you get the 2nd sub, have you tried using the Yamaha manual PEQ in your AVR to boost the Subwoofer Frequencies from 40-80Hz when your sub is in the first location?

For example:
39.4Hz = +3.0, Q=0.5
49.6Hz = +3.0, Q=0.5
62.5Hz = +3.0, Q=0.5
78.7Hz = +3.0, Q=0.5

 

[3db]

Definitely not going to talk you out of getting a 2nd sub since multiple subs is probably always a good idea.

But until you get the 2nd sub, have you tried using the Yamaha manual PEQ in your AVR to boost the Subwoofer Frequencies from 40-80Hz when your sub is in the first location?

For example:
39.4Hz = +3.0, Q=0.5
49.6Hz = +3.0, Q=0.5
62.5Hz = +3.0, Q=0.5
78.7Hz = +3.0, Q=0.5

Maybe I should try that first.

 

[William Lemmerhirt]

Anyone else using different subs in the same room?

Yep. I have done this. The problem is the phase cancellations at and above the port tune. This can make the FR unpredictable at best so rew is a must, and a minidsp(audyssey is pretty good but I know you use Yamaha so I can’t “just see what audyssey does first” lol) would be a good idea. Even with identical subs, if they’re not symmetrical in placement, and in regard to the LP, the FR is a crap shoot. However! You at least have the law of averages and a better chance at smooth response. Just for a point of reference, I’ve seen Ed(svs) recommend NOT using subs as similar(not really) as the 2000 and 2000pro together as the phase relationship between the ports and drivers are just different enough to potentially ruin the FR.

Short version is, if you’re gonna try it without measurements get a matching Rythmik sub. Place one where you get the better extension, and try the other where you get the midbass hit. Run ypao and see what ya get.

 

[tyhjaarpa]

I also would suggest getting 2 matching subs to avoid possible problems.

 

[kini]

Anyone else using different subs in the same room?

Room is 1600 cubic feet, can be closed off. PC12+ in front right 11' from the LP. DefTech Supercube 8000 in rear left corner firing into the wall from about 4" and about 4' from the LP.

I used just the PC12+ for quite some time without ever trying the SC but eventually decided to give it a shot because of all of the positive comments about using 2 subs.

I don't measure my response, just go by ear. It sounded and felt good to me prior but after putting the SC there was a noticeable improvement. Now I have bass "everywhere" and "nowhere". It's just there. Very enveloping.

Again, by ear and feel it's great. The only time I can tell that the subs don't match is at very high levels and with bass intensive movies such as BR2049. I can notice when the SC gives up and the PC12+ keeps going. But I don't listen that loud hardly ever. Eventually I'll replace the SC with something that matches more closely but for now it works well enough.

You have nothing to lose by trying 2 different subs.

 

[3db]

Definitely not going to talk you out of getting a 2nd sub since multiple subs is probably always a good idea.

But until you get the 2nd sub, have you tried using the Yamaha manual PEQ in your AVR to boost the Subwoofer Frequencies from 40-80Hz when your sub is in the first location?

For example:
39.4Hz = +3.0, Q=0.5
49.6Hz = +3.0, Q=0.5
62.5Hz = +3.0, Q=0.5
78.7Hz = +3.0, Q=0.5

I went in and manually EQd the sub and Im getting the slam that I was missing in the 40 to 60 Hz range. Thanks for your suggestion.

 

[AcuDefTechGuy]

I went in and manually EQd the sub and Im getting the slam that I was missing in the 40 to 60 Hz range. Thanks for your suggestion.

Glad to be able to save you some money.

I do love that Yamaha manual PEQ.

 

[3db]

Glad to be able to save you some money.

I do love that Yamaha manual PEQ.

Is there anyway to download the YPAO graphical results from the AVR?

 

[AcuDefTechGuy]

Is there anyway to download the YPAO graphical results from the AVR?

I've never tried that. On the web interface, we see all the settings, but no graphs. So I don't think we can download the YPAO graphs.

Probably just have to take a picture of the screen with our phones.

 

[little wing]

Definitely not going to talk you out of getting a 2nd sub since multiple subs is probably always a good idea.

But until you get the 2nd sub, have you tried using the Yamaha manual PEQ in your AVR to boost the Subwoofer Frequencies from 40-80Hz when your sub is in the first location?

For example:
39.4Hz = +3.0, Q=0.5
49.6Hz = +3.0, Q=0.5
62.5Hz = +3.0, Q=0.5
78.7Hz = +3.0, Q=0.5

I copied the "Natural" PEQ to manual and tried these exact settings for my Rythmic sub! All these frequencies are under band 1, I learned . I've been listening to some tracks, and I really think it did improve on my bass! It seems a little fuller but still tight. Kind a hard to explain but it does seem better.

 

[VMPS-TIII]

Anyone else using different subs in the same room?

Yes, I.m using dual driver VMPS Tallboy sub plus HSU VTF-3 MK5 HP Subs. These work well. Response down to 20Hz is strong with this combo.

.

 

[AcuDefTechGuy]

Maybe I should try that first.

It's hard to believe it until you see it (or hear it).

I copied the "Natural" PEQ to manual and tried these exact settings for my Rythmic sub! All these frequencies are under band 1, I learned . I've been listening to some tracks, and I really think it did improve on my bass! It seems a little fuller but still tight. Kind a hard to explain but it does seem better.

It made a huge positive impact for my 26x24x14 room.

Of course, if +3.0dB is a little too much for some people, they can always go with +2 0dB. But +3.0 is just the right amount of enough SLAM BAM FREIGHT TRAIN FROM HELL bass for me.

 

[little wing]

It's hard to believe it until you see it (or hear it).


It made a huge positive impact for my 26x24x14 room.

Of course, if +3.0dB is a little too much for some people, they can always go with +2 0dB. But +3.0 is just the right amount of enough SLAM BAM FREIGHT TRAIN FROM HELL bass for me.

I've been listening for about an hour now..... WOW. I don't know if we should slam Yamaha for giving us an inadequate room correction system, or praise them for giving us the tools (PEQ) to fix it. What a difference. I ended up backing off the overall sub level by a bit. But I may go back in and bump those frequencies down to +2.0bd like you said.

Either way, major difference, more slam, better sound to my ears.

 

[AcuDefTechGuy]

I've been listening for about an hour now..... WOW. I don't know if we should slam Yamaha for giving us an inadequate room correction system, or praise them for giving us the tools (PEQ) to fix it. What a difference. I ended up backing off the overall sub level by a bit. But I may go back in and bump those frequencies down to +2.0bd like you said.

Either way, major difference, more slam, better sound to my ears.

I went with +3.0 on the sub PEQ and backed off on the sub levels. I think that’s the best way.

But yeah, the slam and punch is Night and Day difference. Not subtle at all.

 

[William Lemmerhirt]

Glad you found a good solution db. I would still opt for a second sub but hey, that’s just me!!! I also use 3 subs and minidsp and rew for custom curves.
Again, glad you got a much lower cost solution.