I have 3 subwoofers at this point..

I have a Velodyne CT100 in my main living room entertainment room.. its a 10" woofer at 150 watts (28 to 120hz) i believe.. this thing has a cross over adjustment and really kicks the bass in my large 14 x 19 room...

I also have the subwoofer which came with my HTS780 HTIB by onkyo.. its a 230 watt 10" subwoofer (30 to 150hz).. I have this in a small 12x12 size office room with my polk audio rm6750 speakers (not the woofer from this set of polks).. i've found that i have the woofer volume all the way up (in the living room i have it at around 1/4 or just above and it booms).. with the volume all the way up on the onkyo.. the woofer bass is "tolerable" or acceptable.. not very booming...

There is also the subwoofer which came with the RM6750 set.. its a 100 watt (50 watt continuous) 8" (40hz to 200hz) unit.. I'm wondering if i would notice any improvement by going with this one rather than the Onkyo (it takes a bit of work to swap them out given my tight configuration)... I would say no, just because it has "lesser specs", any thoughts?

Also.. are there particular reasons why my Velodyne would outperform the Onkyo (since spec wise the onkyo appears to have better wattage at least, but i guess this isnt everything)..

Thanks

While amplifier power is definitely an important factor in a subwoofer’s performance, there are no consistent standards for measuring it, which can lead to wildly exaggerated claims. We’re interested in what comes out of the subwoofer — which is what we measure. It doesn’t matter if a manufacturer boasts that its sub uses 1,000 watts if another sub can achieve the same result with 100 watts. Other things being equal, I’ll always go with the lower-powered one — especially since I pay the electric bill! Tom Nousaine.


Ian ;)

Ian ;)

Cool.. so perhaps in my smaller room, i should swap out the Onkyo 230watt sub for the 100 watt Polk..

Anyone else have the 100 watt Polk and can comment on how it performs?

Cheers

My personal opinion is the polk will sound better than an HTIB sub, give it a shot. Also forget about specs, they mean little to nothing (more often nothing) in the budget sub category.

I have a Velodyne DPS10 and the Onkyo sub from a HTiB. Although wattage are equal, the Velodyne puts the Onkyo to shame. There is absolutely no comparison. My Onkyo puts out what I like to call "ghetto bass." The Velodyne fires much better through all my speakers than the Onkyo did. I have a 5.1 setup using an Onkyo 705 receiver.

I have a Velodyne DPS10 and the Onkyo sub from a HTiB. Although wattage are equal, the Velodyne puts the Onkyo to shame. There is absolutely no comparison. My Onkyo puts out what I like to call "ghetto bass." The Velodyne fires much better through all my speakers than the Onkyo did. I have a 5.1 setup using an Onkyo 705 receiver.


I love my velodyne too.. that ghetto bass (great term) is awesome.. i'm only at 25% of max volume and it shakes the walls in my house when playing 360 shooters :)

You really "feel" the reverb and it does translate the bass all around very well.

My personal opinion is the polk will sound better than an HTIB sub, give it a shot. Also forget about specs, they mean little to nothing (more often nothing) in the budget sub category.

Indeed it did sound better despite being 8" driver..

Can anyone give me any tips on setting the crossover frequency.. in the case of my polk woofer, the lowest spot is 80hz.. while in the case of the velodyne i think its 60...

For my polk speakers/polk woofer setup.. the lowest the speakers are rated at is 100hz on the lowest end..

For my other velodyn/onkyo htib speakers.. the lowest is 55hz...

What should i be setting the crossover freq. to.. should it basically overlap the lowest value on the speaker if possible (right now i have the veloydyn/onkyo speaker setup set to 90 actually..)

Of course with the polk/polk setup, the speakers start at 100hz...

Also.. what about the phase.. 0 vs 180.. should i just be putting my hand in front of the woofer and if i feel air.. its the right direction? Sorry if these are common/repeat questions.. but it sums up my thread i think, for my own reference :)

I forgot one other wiring question.. in my office setup.. i'm using a thin rca to rca cable from the receiver to woofer (RCA male on both ends).. then a standard female to dual male radio shack Y splitter, gold tipped i think.. does it matter which i plug into the "left" and the "right" rca spots.. or is this phase related.. does it matter that i'm using a thin, non gold tipped rca cable for the main cable?

Thanks

Your crossover setting should be about 1.5 times the tuning point of your mains. I have found that the easiest way to set the phase is to use the test tones from your receiver. Phase variations are much more noticeable when you are generating pink noise. If you are using a Y cable it shouldn't matter which plug goes to which input. If the cable you are using is not inducing any noise I would assume it's ok.

Ian

Your crossover setting should be about 1.5 times the tuning point of your mains. I have found that the easiest way to set the phase is to use the test tones from your receiver. Phase variations are much more noticeable when you are generating pink noise. If you are using a Y cable it shouldn't matter which plug goes to which input. If the cable you are using is not inducing any noise I would assume it's ok.

Ian

When you say 1.5x the tuning point.. does this mean if my speakers are at lowest say 50hz.. then i set it to 75hz on the sub?

I dont think i have a subwoofer test tone.. or do you mean the one that cycles through the 7.1 channels or 5.1 channels..

Thanks for the advice

When you say 1.5x the tuning point.. does this mean if my speakers are at lowest say 50hz.. then i set it to 75hz on the sub?

Yes. But 80 would be fine. Especially for movies, because most film audio engineers use that setting when mixing the master sound track.

I dont think i have a subwoofer test tone.. or do you mean the one that cycles through the 7.1 channels or 5.1 channels..

Yes. We call that tone pink noise. When using it to set your speaker and subwoofer levels, adjust the phase to the loudest position, when you are running the tone from your sub.



Ian