old model izzit?

Probably a used unit / old model. The cheapest SVS sub in Singapore is PB/PC-12NSD at SGD1,099.

There will not be any 10" sub from SVS in Singapore (at least for now).

Guys, its an older model SVS PB1-NSD. Link is here

http://www.phing.com/listing/174783-WTS-SVS-PB1-NSD-850
http://www.svsubwoofers.com/images/popup_pb1_front.jpg

Wah, so cheap there especially considering their purchasing power. No wonder so many Singaporeans going for SVS.

If we had the same kind of purchasing power, everybody can afford an SVS at 1.1k

I don't think its a issue with dynamic mid bass. If it is then even increasing the sub volume will not improvr that as the sub will never produce any mid bass as this frequency has been cut off by the avr crossover. My Denon sob crossover is set at 80hz so anything above that will not be generated by the sub.

Bro, they are talking about 100-300Hz lah and not abt the sub too (If you read pierreye's postings)

lightning >
If you've been used to Velo all these while, I would say that you'll probably feel less bass throughout the entire movie. What you're getting from this SVS are just "I would say" cleaner, turning up the gain to feel the mid mass rumble would just get you confused *that what happened to me* 76db~78db for Music should be a good start, for movies try 78~80db. What it's meant to dig deep you would see it shine. What you could do is that crossover higher prehaps. I have mine 80hz for movies and 60hz for Music.

htkaki>
mine wasn't entirely null issue though, but it did improve when i rotated the whole setup. I've got to say Thanks alot bro.

pierreye >
yep, you're correct, as far for me in this case, I thought that it was the sub issue at first too. Never neglect the Mains! I can only say that, what's heard comes from the Mains and the extensions is the job for the sub. The Sub should blend will with the Mains, gaps will give u a problem, overshadowing will get you confused.

Perhaps YCS can add up a little bit here. He was once a Velo-'d'ian

Bro, you are welcome. Are you a happy man now? Maybe I sld start my 'phase 2' poison for you.

aiyoh bro, i'm only beginner

anyway, i just use audyssey to calibrate and added +1db to sub's trim; svs gain at 12noon.
sound OK to me but i suppose need some 'expert ears' to drop by and have a listen.

comparing velo 10R with PB12NSD, simply outclassed by svs in all aspects really. the 10R was quite boomy in comparison and simply could not dig deep.

funny that u say 12noon..

didn't know there was a diff betw 12noon or 12am

12noon: i suppose i watched a lot of cowboy series during my younger days. the gunfights were invariably held at HIGH NOON after a few morning whiskies.

who remembers the The High Chaparral and Bonanza.

This post has been edited by ycs: Jul 31 2009, 10:19 PM

ic ic ... cowboy style

Finally have time to do my PC-12Plus FR. Using realtrap.com's test tone and pink noise armed with SPL meter.

http://www.realtraps.com/test-cd.htm

Here's the graph. Anyway, will try other s/w as well to compare the result.



As you can see, there is a serious issue from 40Hz to 48Hz as it dips real low. Abt -26dB difference The 'valley' is difficult as the PEQ only tackles peak. As you can see in this graph, the peak (28Hz) is being 'subdued' a bit. Any advice would be welcomed

At 16Hz, it starts to roll off 'dramatically', hitting 60dB at 10Hz, which is the same reading that I got when 46Hz tone is played. Only at 47Hz, the reading flipped to 50dB. It shot up to 61dB for 48Hz. There must be something very wrong with the room acoustic or something is messing with it . Need to find out

When I have time, I'll do some 'tweaking' with the room. Then, re-do the graph again.

Oh yes, to get the 70dB reading, the volume level is at -33.5dB on my 1900. Crossover setting is at 80Hz.

I assume the svs is tuned to 15hz? any room treatment? if there is can u elaborate a bit abt the treatment done to the room.. kamsiah for your effort

This post has been edited by mys_terious: Aug 2 2009, 09:11 AM

you might want to re-position your sub to get better FR.

Thanks for posting your chart htkaki.

I'm not too worried about the drop off after 16Hz. I assume that's your tuning point and ported subs are known to drop off quickly after that point. Besides 16Hz is plenty deep.

The big issue is the 40-48Hz range as you pointed out. A lot of audible bass in this region and that null is no good. My first gut reaction is to change the sub position. That might have more impact than tweaking your room.

I came across this page while looking for brands of rockwool that is efficient agasint low freq http://www.bobgolds.com/AbsorptionCoefficients.htm .. just thought it might be useful for ppl who r interested in room treatment

useful info. i just hantam make my panels with 60kg/m3 and 80 kg/m3 rockwool. haha

looks like my bass traps not heavy enough.

anyway at the end i also cincai order nia.. no choice in my home town.. i ordered 100kg/m3 .. have to wait coz not much stock for this.. they say 'no body buy this 1 la, tuakeh u buy 100kg/m3 for what'.. ehhe

wth, you buy 100kg/m3... gila heavy. how many inch thick you wanna make?

btw, the table is for 2" thick and does it mean double the coeff. if 4" thick?