Official Epik Subwoofer Thread - Page 121

Originally Posted by bryanlim

I was interested in purchasing the Valor, but am wondering if the Valor comes with any carpet spikes. Reason I ask is because I plan to put the Valor on its side due to clearance issues. If it does come with spikes, then it would stand to reason that the spikes help with isolation from the floor. If it does not come with spikes, then I can infer that Epik would deem it appropriate to just have the box lie directly on the floor.

Thanks for any help.

Originally Posted by stepyourgameup

Get an auralux subdude to decouple the sub from the floor. They sell them at www.sweetwater.com

Originally Posted by Diseasedyak

Correct me if I'm wrong, but subdude's aren't useful if you have a concrete floor, correct? I seem to recall in researching them that they were only useful for people with floors that weren't on slabs.

Originally Posted by jterp7

cable question..I have a 12 x 10 room for the valor initially and am trying to decide between a 6ft and 12ft cable considering placement and future use. Good idea to have more cable than needed?

Originally Posted by stepyourgameup

I very seriously doubt it. All audessy does is turn the sub down so that it blends in with the mains better. It doesn't correct frequency dips and spikes like REW does.

I just got an email from Karen at Epik and she said that my tower will ship early next week. I ordered it on July 31.

Originally Posted by stepyourgameup

I very seriously doubt it. All audessy does is turn the sub down so that it blends in with the mains better. It doesn't correct frequency dips and spikes like REW does.

I just got an email from Karen at Epik and she said that my tower will ship early next week. I ordered it on July 31.

Originally Posted by bsoko2

I always use a 24 ft cable, that way I always will have enough.

Bill

Originally Posted by Ironmike86

Means nothing. Mine said that the first day ordered

Originally Posted by Archbushman

The recommendation you were given is completely wrong. You can not disconnect the sub, run Audyssey, and then reconnect it. The Onkyo needs to know in advance if it has a subwoofer. If you tell it later that you added one, then it will reset and you have to run MultEQ again.

Frankly, there is very little use for external subwoofer correction devices if you already have MultEQ. The subwoofer MultEQ filter gives you more than 4000 points of correction and that will flatten nearly all subwoofer responses. I don't know where you got the information that "it doesn't do much for sub EQing".

There are are some rare cases where there is a huge bass peak in the room that could benefit from additional flattening. But you have to contend with the additional delay introduced by an external device (with DSP) that is added to the chain. If you really want to do that, then make sure that MultEQ measures through it so that it tries to compensate for that additional signal delay.

Regarding the measurement positions, I would suggest starting in the center with the first measurement (this is critical because delays and levels are calculated from that first position) then move 1 m to the left and right of that. Then take three more in parallel with the three first and about 1 m in front of the first three. The final two should be taken about 50 cm from the first measurement and slightly forward as if to form a triangle with the first position.

Please let me know how it works out.

Best,
Chris
CTO Audyssey Labs

Originally Posted by nzk

Damn.


Well it's been 12 days since I've ordered, so I hope it'll come within the next 18. Of course, that's not saying much, since some people waited 2 months for their sub.

It'd be a very very nice surprise to come before the 1st of September but I'm not holding my breath.

Originally Posted by thirdeye11

If that is true I may have wasted some cash!! haha.

I would not think they would be as useful on concrete since their primary function is to physically isolate the sub from a live, resonant wood (or other) surface. Since concrete won't vibrate sympathetically, just a stable support (feet, spikes) should be fine.

Kal
__________________
Kal Rubinson

"Music in the Round"
Contributing Editor, Stereophile
www.stereophile.com/musicintheround/

Originally Posted by Archbushman

The recommendation you were given is completely wrong. You can not disconnect the sub, run Audyssey, and then reconnect it. The Onkyo needs to know in advance if it has a subwoofer. If you tell it later that you added one, then it will reset and you have to run MultEQ again.

Frankly, there is very little use for external subwoofer correction devices if you already have MultEQ. The subwoofer MultEQ filter gives you more than 4000 points of correction and that will flatten nearly all subwoofer responses. I don't know where you got the information that "it doesn't do much for sub EQing".

There are are some rare cases where there is a huge bass peak in the room that could benefit from additional flattening. But you have to contend with the additional delay introduced by an external device (with DSP) that is added to the chain. If you really want to do that, then make sure that MultEQ measures through it so that it tries to compensate for that additional signal delay.

Regarding the measurement positions, I would suggest starting in the center with the first measurement (this is critical because delays and levels are calculated from that first position) then move 1 m to the left and right of that. Then take three more in parallel with the three first and about 1 m in front of the first three. The final two should be taken about 50 cm from the first measurement and slightly forward as if to form a triangle with the first position.

Please let me know how it works out.

Best,
Chris
CTO Audyssey Labs

Originally Posted by stepyourgameup

Wow, I guess everyone that uses REW and a feedback destroyer are just wasting their time and money. Also, you don't want a completely flat response, you want a house curve or a hard knee curve.

It is extremely hard to believe someone who has a vested interest in Audessey. I, on the other hand, have nothing to gain by what I tell you.

Originally Posted by stepyourgameup

Wow, I guess everyone that uses REW and a feedback destroyer are just wasting their time and money. Also, you don't want a completely flat response, you want a house curve or a hard knee curve.

It is extremely hard to believe someone who has a vested interest in Audessey. I, on the other hand, have nothing to gain by what I tell you.

Originally Posted by Swampfox

How does Audyssey handle multiple subs?

Originally Posted by SRR

Just because Chris has a vested interest in Audyssey, doesn't mean he or their technologies are bad. My goodness you need to look at what MultEQ can do technology wise VS what a Behringer can do, before dismissing it, take a step back, read what Tomlinson Holman has said about it and what has been said in the Audyssey thread here.

Originally Posted by warlord260

instead of eq. it would be better to just treat your room.
but with limited treatments and audessy, you could get decent response.
i have seen numerous graphs, done by various people, and was also surprized.
it must work to some extent because of the top receiver manufactures are implimenting this feature.
anyway the audessy thread is a great read lots of info

Originally Posted by FrostyMMB

cyberbri is correct. Frequencies below 100hz have wavelengths that are many meters long, and if I recall correctly, you need effective absorptive material with a thickness of at least a quarter wavelength to see any results. 100hz absorption would require over two and half feet of absorptive material. Luckily, subwoofer equalization is easy, effective, and inexpensive, and is the most practical method of flattening bass response in a room once you have found the best location for the sub.

Originally Posted by srr

you do not need 2 1/2 feet of bass trapping for 100hz, most 4 inch traps will absorb to 100hz if straddling a corner. Gik's tri traps are not that thick and i think they go to 80hz or lower?

Originally Posted by stepyourgameup

Wow, I guess everyone that uses REW and a feedback destroyer are just wasting their time and money. Also, you don't want a completely flat response, you want a house curve or a hard knee curve.

It is extremely hard to believe someone who has a vested interest in Audessey. I, on the other hand, have nothing to gain by what I tell you.

Originally Posted by xcjago

Audyssey did an excellent sub eq'ing my JL F112. I also have a Behringer Feedback Destroyer. It's sitting in the closet.

Originally Posted by xcjago

Audyssey did an excellent sub eq'ing my JL F112. I also have a Behringer Feedback Destroyer. It's sitting in the closet.

Blue line is after Audyssey. And no, not everyone wants a house curve. Maybe you do, but that doesn't make it right.