i think i found out my danley subs weakness

SlowcarIX

Eragon DTS-HDMA

Chp1 4:57
Chp5 19:19

i normally set vol @-10 or -8dB

i went 0dB and when it hit those 2 - it sounded awful...like it bottoms out or something :eek:

anyone knows what frequency range those are in?

found nothing here: http://www.avsforum.com/avs-vb/showthread.php?t=755493

"Eragon" DTS Blu-ray DTS-HD:MA
1. Chap 4 (0:15:03) 20Hz
2. Chap 6 (0:22:16) 25Hz
3. Chap 7 (0:28:57) 25Hz
4. Chap 9 (0:35:58) 20Hz
5. Chap 10 (0:40:55) 25Hz
6. Chap 13 (0:51:49) 20Hz
7. Chap 14 (0:57:53) 10 & 32Hz (Loudest)
8. Chap 15 (1:01:53) 20Hz
9. Chap 19 (1:21:42) 24Hz
10. Chap 21 (1:25:16) 20Hz

Ron Temple

Everything has it's limits. If you didn't hear the CLACK of a bottom, it was probably distortion. Do you know where Audessey calibrates reference level ? -0 maybe way above reference. I have mine calibrated to 75dbs @ -25, so -15 is reference. When I demo at reference it's almost enough to drive you out of the room. Most movies I watch are in the -25 to -20 range.

MikeC78

I would think it was bottoming out, that would be some insane distortion to be experiencing at those levels.

Just a thought... Could there be an issue with the amp keeping up?

dkg999

I would just turn it down a few notches, get another glass of wine, and enjoy the rest of the movie

speakergeek

What was happening in that scene? Are you running at or above reference there (85 dB)?

SlowcarIX

Ron Temple wrote: »

Everything has it's limits. If you didn't hear the CLACK of a bottom, it was probably distortion. Do you know where Audessey calibrates reference level ? -0 maybe way above reference. I have mine calibrated to 75dbs @ -25, so -15 is reference. When I demo at reference it's almost enough to drive you out of the room. Most movies I watch are in the -25 to -20 range.

i should be able to persuade the environmental/health/safety guys at work to let me take their dB meter home for a day. i guess i need a test dvd too? never tried sound level measurement b4...

Face

They're pretty cheap at Radio Shack, and you will probably use it more than once.

SlowcarIX

this is so annoying....so i got the conquest out and hooked it up and cranked it up to 0dB, it made that awful sound too! i think its something in the room is making the noise, or house is falling apart :eek:

SlowcarIX

Face wrote: »

They're pretty cheap at Radio Shack, and you will probably use it more than once.

i need a test disc too?

SlowcarIX

speakergeek wrote: »

What was happening in that scene? Are you running at or above reference there (85 dB)?

er...the kid shot the deer and there was a flash of light and the 2nd one, the soccerer(sp??) was creating the razzak (sp??).

i got no idea how loud it is...

Dennis Gardner

Note to self........don't buy used subs from SC9;)

millerman 3732

Have you tried any of the other disc from the AVS list in the OP? I've tried both of the Eragons scenes you posted, and while both get pretty low, my SVS didn't seem to have any trouble with it, maybe you have a bad disc, alot of earlier BD's where know to have little audio and video quirks.

McLoki

Keep in mind reference level is for a dolby track. DTS is often as much as 5-10db hot by comparison.

Turn it down a little and go on with your life.... If push comes to shove - hook the conquest back up and run dual subs until it is sold....

Michael

SlowcarIX

Dennis Gardner wrote: »

Note to self........don't buy used subs from SC9;)

lol...hope not too many ppl read this

or my conquest will be on the FS section for a long time

SlowcarIX

millerman 3732 wrote: »

Have you tried any of the other disc from the AVS list in the OP? I've tried both of the Eragons scenes you posted, and while both get pretty low, my SVS didn't seem to have any trouble with it, maybe you have a bad disc, alot of earlier BD's where know to have little audio and video quirks.

this is the 1st time i notice it. i never play it at such head splitting level before - since its happening on both the conquest and the danley, either coming from the room or something else other than the subs

SlowcarIX

McLoki wrote: »

Keep in mind reference level is for a dolby track. DTS is often as much as 5-10db hot by comparison.

Turn it down a little and go on with your life.... If push comes to shove - hook the conquest back up and run dual subs until it is sold....

Michael

have to do that or i might have to increase 1dB every month due to hearing problems

Face

Do you have your PC hooked up to your rig? Just download some test tones and play them till you find the frequency and/or level that's wrecking your foundation or bottoming out the driver.

SlowcarIX

LOL

nope no pc hooked up...

McLoki

It's possible the pre is clipping before the sub is. (so the sub is accurately reproducing the clipped signal it is receiving.)

Just a thought.

SlowcarIX

its definitely not the poweramps clipping for sure- the dts20 has a 2000w bridged amp driving it, the conquest a 1000w. it doesnt seem to sound "electronic"...sounds mechanical/wooden come to think of it - the sounds is so non-directional, seems like the limit the dry walls can take ?...i'll track it down in the day time

McLoki

Didn't say the amp - I was thinking the preamp before it sent the signal to the amp. Could also just be something in the house that resonates at that frequency / volume. (heck - could even be the DAC clipping)

Either way, it does not sound like it is the sub...

Face

Is the limiter on the amp disabled? Does the clipping light illuminate when this happens?

SlowcarIX

nope no clipping light

the limiter is en-abled. the guy that sold me the sub/amp told me that your amp company says that it will not affect the performance and its good to keep it there just to make sure it does not take out the sub ...

i'm starting to believe its something in the room thats causing it

Ron Temple

Michael may be on the right track, could be the disk. Get a SPL meter...at least you'll know where you're at.

dholmes

Are you guys talking about turning your avr volume to 0 & setting the sub level to 75 db with a spl meter?

speakergeek

dholmes wrote: »

Are you guys talking about turning your avr volume to 0 & setting the sub level to 75 db with a spl meter?

Any SPL meter results yet?

VR3

When I was running dual subs I ran an amp with a limiter ---

When the limiter kicked in, the subs made the most horrendous sound. I kept them off and the headroom was greatly increased...

Sometimes an amps gotta clip when an amps gotta clip... its important that it dosnt clip to long though

SlowcarIX

speakergeek wrote: »

Any SPL meter results yet?

who...me or him?

SlowcarIX

Vr3MxStyler2k3 wrote: »

When I was running dual subs I ran an amp with a limiter ---

When the limiter kicked in, the subs made the most horrendous sound. I kept them off and the headroom was greatly increased...

Sometimes an amps gotta clip when an amps gotta clip... its important that it dosnt clip to long though

what does the limiter on the amp limit?

speakergeek

SlowcarIX wrote: »

who...me or him?

Yeah I was refering to you. I thought you were going to get an SPL meter?

speakergeek

SlowcarIX wrote: »

Eragon DTS-HDMA

Chp1 4:57
Chp5 19:19

i normally set vol @-10 or -8dB

i went 0dB and when it hit those 2 - it sounded awful...like it bottoms out or something :eek:

anyone knows what frequency range those are in?

found nothing here: http://www.avsforum.com/avs-vb/showthread.php?t=755493

"Eragon" DTS Blu-ray DTS-HD:MA
1. Chap 4 (0:15:03) 20Hz
2. Chap 6 (0:22:16) 25Hz
3. Chap 7 (0:28:57) 25Hz
4. Chap 9 (0:35:58) 20Hz
5. Chap 10 (0:40:55) 25Hz
6. Chap 13 (0:51:49) 20Hz
7. Chap 14 (0:57:53) 10 & 32Hz (Loudest)
8. Chap 15 (1:01:53) 20Hz
9. Chap 19 (1:21:42) 24Hz
10. Chap 21 (1:25:16) 20Hz

Hi Slo,

I have the SD DVD version coming in the mail from NetFlix. I'll do a waterfall with SpecLab and see if thre is anything there.