Bass Management

Tarter

Under one of my Denon's sub menu's I found Bass Management. This gives me the option to choose "Front & Sub" or just "Sub". I have a LSiC center and LSi7's up front. My sub is crap, but I do have one. My question is what option should I choose?

zombie boy 2000

I imagine that by choosing "front and sub", all lower frequencies will be sent to both your speakers and sub. By choosing "sub", your receiver will send all such frequencies directly to your sub by setting a crossover point to your mains. This latter scenario is generally considered optimal for smaller bookshelf speakers which are unable to reproduce the lower end of the sonic spectrum.

Are you able to set the crossover on your receiver? If not, it may have a default of 60 or 80Hz...

no-cure

Hi Tarter, welcome to the forum!

Well, try both 'front & sub', the LSI7s might give you a better/cleaner low frequency above 45Hz, which is what I believe the LSI7s go down to. Btw, what kind of sub and amp/AVR do you have??

Tarter

I have a Denon AVR-3300 and the sub is just a Yamaha 8". The sub came with one of those Home Theaters in a box deals. To finish my system I hope to get a Sunfire Cinema amp and a SVS either PB-10 or PB-12. Oh, I'd also like to get the LSi9's for up front and move the 7's to the rear. Right now I have a pair of Bose 6.2 every where speakers in the rear. Bose was kind enough to send out some new grills for those speakers free of charge (not sure why), so they look really nice now.

Sansui

Tarter wrote: »

Under one of my Denon's sub menu's I found Bass Management. This gives me the option to choose "Front & Sub" or just "Sub". I have a LSiC center and LSi7's up front. My sub is crap, but I do have one. My question is what option should I choose?

Don't forget to set your front speakers to "Large" and your crossover frequency for bass management. That's what I did with my Dinon 887. If you have auto setup your fronts will work just like they were hooked up without using bass management. I used that and then a SPL meter to "match" my five speakers.

tonyb

Given the quality of the sub....take it out of the picture all together,it will just mess up the sound.

Tarter

I don't remember seeing an option to set the crossover. Pretty sure I can't. I did change it to "Large" speakers and I think I will try taking the sub out of the picture all together until I can't get one of much better quality. Sure won't hurt to try anyway. Thanks for all the advice everyone!

Deadof_knight

I have the 3300 as well like he said use large for the spaeker setup and font and sub is what you want for bass manegement it cuts the fronts off too high if you ask me ....

engtaz

Try it both way and see what you like. I have mine set to large.

Sansui

Tarter wrote: »

I have a Denon AVR-3300 and the sub is just a Yamaha 8". The sub came with one of those Home Theaters in a box deals. To finish my system I hope to get a Sunfire Cinema amp and a SVS either PB-10 or PB-12. Oh, I'd also like to get the LSi9's for up front and move the 7's to the rear. Right now I have a pair of Bose 6.2 every where speakers in the rear. Bose was kind enough to send out some new grills for those speakers free of charge (not sure why), so they look really nice now.

I checked out your manual and the way your amp is factory defaulted is the way you want your speakers set up for bass management (Page 61 - speaker configuration (top line)). I didn't see any crossover setting feature either.

Tarter

I'll check out page 61 tonight. Thanks!

Sansui

Tarter wrote: »

I'll check out page 61 tonight. Thanks!

I'm not familiar with your type of speakers. You might also want to change the setting mentioned on Page 21 at the top (step 2) to see if it sounds any different (better, worse, or the same).

Tarter

Well, I've broke down and bought a SVS PB10-NSD. I guess I'll have to do some more playing around with my settings. I'm thinking now that I have a good Sub I'll want to go with "Sub Only" setting not the "Sub and Front". I'm excited!

liordra

In think you can choose Front & sub when the fronts are set to Large, which means full range.
this thread http://www.polkaudio.com/forums/showthread.php?p=619979#post619979 discussed this issue. If you setup the LSI 7 as small, then you will not be able to choose the bass to be sent to both Fronts and sub, and you should be able to set the cross over. sience you went with the mighty SVS, I'd consider setting all your speakers as small, and let the SVS handle all the bass managment. it is more then up to the job.

Tarter

I'll check out that thread. I will definity have to do some playing around. I've heard a lot of good things about the SVS, so I'm excited to finally own a decent sub. All I've ever owned is that Yamaha 8".

Erick

Hello there, I need help setting up my new RM series speaker in my receiver. I'm using Denon-3806 AVR and needs to know what optimal Crossover Frequency Value that I could assign on my 7.1 speaker setup. I got the following:
RM40T (Frequency Response 60-25,000 Hz) - Front Left and Right
RM30 (Frequency Response 90-25,000 Hz) - Surround Left and Right
RM30 (Frequency Response 90-25,000 Hz) - Back Surround Left and Right
RM302 (Frequency Response 90-25,000 Hz) - Center
PSW404 (Frequency Response 32-160 Hz) - Subwoofer

Your suggestions will be greatly appreciated. Thanks

Erick

Ron Temple

Erick wrote: »

Hello there, I need help setting up my new RM series speaker in my receiver. I'm using Denon-3806 AVR and needs to know what optimal Crossover Frequency Value that I could assign on my 7.1 speaker setup. I got the following:
RM40T (Frequency Response 60-25,000 Hz) - Front Left and Right
RM30 (Frequency Response 90-25,000 Hz) - Surround Left and Right
RM30 (Frequency Response 90-25,000 Hz) - Back Surround Left and Right
RM302 (Frequency Response 90-25,000 Hz) - Center
PSW404 (Frequency Response 32-160 Hz) - Subwoofer

Your suggestions will be greatly appreciated. Thanks

Erick

If you have multiple xover settings available on your Denon, set the fronts to 80hz, the center, surrounds and back surrounds to 100 or 120hz (whichever sounds best). Disable the crossover on the sub by switch (if it has a bypass) or by tuning it all the way up to it's highest setting.

bms

Tarter wrote: »

Well, I've broke down and bought a SVS PB10-NSD. I guess I'll have to do some more playing around with my settings. I'm thinking now that I have a good Sub I'll want to go with "Sub Only" setting not the "Sub and Front". I'm excited!

Well, has it arrived yet? If, so what do you think?

Load up Finding Nemo & play "Darla".

bms

Tarter

Not only has it not arrived, but the last I heard the seller hadn't even shipped it out yet. I'm hoping I don't have a problem.

MSALLA

Tarter wrote: »

Not only has it not arrived, but the last I heard the seller hadn't even shipped it out yet. I'm hoping I don't have a problem.

So whats the word. Has it shipped yet.

Dr. Spec

Definitely set all your speakers to Small in your AVR. An 80 Hz XO frequency will work fine with the LSi-7s and the LSiC.

If you set the speakers to Small, you will not have the option of Sub or Sub+Mains; these are only options if the speakers are set to Large. Basically this feature gives you the option of sending a duplicate of the bass information in the main speakers channel (which are already set to Large) to the subwoofer channel.

Tarter

It turns out the Sub was shipped, but he just hadn't replied to let me know. Its due to arrive today!

Tarter

Well, the sub arrived. I haven't taken it out of the box yet, but I see its not the NSD that I was told I was buying. This is the ISD version, which I know is older. I don't know the difference and don't know if I should really care and make a deal of it. What does everyone think? I'm not happy, but don't know if there's a big enough difference to bother with it.

Dr. Spec

The older PB12-ISD with the baseplate has a higher tuning frequency - ~23 Hz vs. ~18 Hz for the new PB12-NSD with no baseplate.

The newer model also has considerably more interior enclosure volume, making it more efficient and ultimately a somewhat better performer.

The NSD woofer will fit the former PB12-ISD, so it could have been upgraded with the new woofer.

Tarter

This is the PB10-ISD, but I imagine its the same with the changes as the 12"

MSALLA

Still a great sub. If the money was not too much i wouldn't be worried about it. It will sound so much nicer then what you had you'll be blown away.

Tarter

I paid $350 with Shipping included from NC to here in WA. I don't think I'm going to worry about it. The shipping charges alone would make it more hassel than its worth. This link makes it sound like there's not a huge difference anyway: http://www.avsforum.com/avs-vb/showthread.php?t=727497

MSALLA

You can't go wrong for $350. You'll be more then happy. You didn't get ripped off.

Dr. Spec

Sorry - for some reason I thought you had the 12" sub.

I might have just answered this question for you directly from our Sales box, but at the risk of repeating myself - the two subs will perform almost identically.

The only difference is the woofer build house. The ISD woofer was built by TC-Sounds, and the NSD woofer is built by SVS. But the build specs on both woofers are identical, and they otherwise share the same cabinet, amp, and vent. I doubt anyone could ever tell the two models apart with their eyes closed.

Tarter

I will definitly keep the sub. I'm sure I'll be very happy. I told the person I purchased it from that I was happy and that we don't have a problem. He just said this: "You know what, now that I think about it... I bought it in January of 06, and it may be that they just hadn't updated the box yet. It should be the NSD." I told him I would be happy either way. By the way, SVS customer service is second to none in my book.

MSALLA

Tarter wrote: »

By the way, SVS customer service is second to none in my book.

They helped spec out the design for my sub when I was building it. I bought the driver off of a member on here and did not spend one dime with SVS,yet Tom ( I think that was his name) spent alot of time e-mailing back and forth to design a sub that would dowhat I needed. First class outfit.