WHERES THE BASS???RTi12

ronnie

WHERES THE BASS THATS SUPPOSED TO BE THE OUTPUT OF A 12in SUB WITH THE ACCURACY OF A SMALLER ONE??? MY ADCOM GFA-555 IS BY AMP TO MY SPEAKERS AND ARE JUICING UP MY 6 SEVEN INCH WOOFERS AND ITS WEAK....WHY????? I HAVE TO TURN MY RECIEVER UP TO ZERO TO GET DECENT BASS OUTPUT....AM I DOING SOMETHING WRONG? IM TIRED OF 2 SUB SETUP AND WANT TO GET MY 6 WOOFERS TO DO THERE JOB.....WHATS UP

Mjr7531

The first thing you might want to do is to turn off Caps Lock.

I'd check all your cables and jumpers (what gauge are the wires?) Are you rerouting bass to your two sub setup via your receiver? That would be the most definate reason as to why your RTi12 have no bass.

Elaborate a bit more on your setup and we'll be able to help more.

Sherardp

Im running 2 Outlaw M2200 Monoblocks (200watts x 1), one per RTi12 and they rock. I am also biamping off my AVR(Sony 7100ES) and I get plenty of bass out of them, and thats in 2 channel mode with my sub turned off. So I will concur with Mjr7531, check your AVR settings first, make sure your amp is connected on the bottom set of speaker posts to drive the 7 inch woofers, and the AVR is connected on the top set for the highs/mids. Let us know what you come up with.

VR3

ronnie

alright....i didn't know it was a crime to (caps lock) .....everything is hooked up right. maybe im expecting too much from the woofers. when i first heard polk speakers, i was no where near able to afford them. must have been 6 years ago....power port was at the bottom of the speaker and the bass was beautiful....i dont know what the speaker was, but i was at circuit city and thats when i first fell in love with polk.....crystal clear highs and accurate bass....1 woofer and 1 tweeter, and the sound had me hooked....really .......6 seven inch subs should quake at the levels im pushing them at

danger boy

i would check your pos and neg speaker wires. if they are out of phase.. you will get weak bass. other than that... make sure you don't have some kind of audio limiter on your receiver settings.

You should be getting decent bass out of those RTi12's. other then settings or speaker wires or your amp.. i can't understand why you're not getting insane bass.

heiney9

Gotta be a connection issue. The Adcom should have those RTi's thumping. It could be placement, but of course you've told us nothing about your room set-up or how things are connected. Just saying it's hooked up properly means nothing. Elaborate or we can't try to help you.

H9

RuSsMaN

danger boy wrote:

i would check your pos and neg speaker wires. if they are out of phase.. you will get weak bass.

If one speaker is wired opposite of the other, sure (the biggest give away is a shifted or missing center image) - but as long as they are both wired the same, it doesn't matter. We don't care if the woofers move in or out first, as long as they 'all' do it the same.

Cheers,
Russ

aaharvel

Looks like someone's in dire need of the TK-421 modification.

Airplay355

how big is your room? how high are your ceilings?

Willow

you did not by chance put your AVR on nite mode?

ronnie

im gonna take photos tonight and post them. them you'll have some idea what im working with

heiney9

Good idea....the more info we have the more we can try to help. You are not the first to have this kind of a problem. Usually it's just something simple or an over looked setting, etc.

H9

zombie boy 2000

Maybe I'm missing something here, but is it possible you have your speakers set to "small" on the receiver?

VR3

zombie boy 2000 wrote:

Maybe I'm missing something here, but is it possible you have your speakers set to "small" on the receiver?

That would be funny...

ronnie

no..there set to large and the recievers crossover is at 90...maybe the crossover is set to low???

jrlouie

I doubt this would have a large enough effect to be your issue, but something you can remember for the future.
I used to run an AVR as a pre-pro. The pre-pro's processing had some harshness; enough to cover up some of the good stuff (bass). If I flipped my AVR to "bypass", suddenly the speakers came alive. They sounded smooth and full.
I doubt that is your issue since I think at that volume that Adcom should give you bass. Or maybe you're used to a large thumping sound that you can get from subs that are cranked up.
But, just thought I'd mention it for future reference.

Mjr7531

ronnie wrote:

no..there set to large and the recievers crossover is at 90...maybe the crossover is set to low???

It's actually too high, with receiver crossovers, you want to set your speakers to crossover with subwoofers an octave above their ±3 dB cutoff on the bottom end. The RTi12s have a cutoff at 30 Hz, so an octave above that is 30 Hz x 2.

Try setting your receiver crossover point to 60 Hz and see if it gives more ample bass for you.

Sami

ronnie wrote:

no..there set to large and the recievers crossover is at 90...maybe the crossover is set to low???

Too high but depending on your AVR that might not matter. Speakers set to large should get the full signal. Anyways, set the speakers to small if you have a sub and lower the xover (40-60Hz).

jrlouie

Sorry, I was confused before. I thought you were looking to get more bass out of the two towers only (i.e. - I was thinking 2-channel stereo). Sounds like you want more bass from your towers to augment subwoofer(s) and maybe eliminate the need for one of your subs.
If this is right, you need to determine how your receiver handles bass management. If it is like most, setting your towers to "large" makes the crossover have no effect on those two speakers. If that is how your receiver handles bass, then you should have a full range signal going to the towers and you probably have other issues.
Another possibility (but less likely) is that the receiver is sending a full range signal to your towers and a signal to the sub and they could be canceling each other at some frequencies (creating nulls). My pre-pro has this option. If this is the case, you could try changing the phase on your sub if you have that capability. Or some recommend running all speakers set to small (even your towers but at 60 Hz) if you’re using a sub, and letting the crossovers due their magic. I know I get a smoother response even with my Lsi15’s if I have them set to small using the sub rather than having them set to large along with having the sub playing. Then if I ever want 2-channel, I have the sub turned off auto-magically.

ronnie

i want to listen to the speakers in 2 channel mode for music without a sub. i bypassed the EQ in my reciever...i like them at the flat level...my speakers are not near corners...when i post the pics later after work, then you'll see what i mean....