The Official Acoustic Audio Subwoofer Owners Thread

[theJman]

Originally Posted by frogmort

Monoprice 12" Powered Subwoofer
• Availability : Back Order
Estimated Time Arrival: 1/20/2012

Amplifier Power Output: 150 Watts RMS, 200 Watts Peak
Frequency Response: 30Hz - 250Hz

Price: $84.10!!!
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HD-SUB12 12" Powered Subwoofer

Amplifier Power Output: 400 Watts RMS, 800 Watts Peak
Frequency Response: 20Hz - 250Hz

No doubt; the Monoprice sub is HTiB class, so it's not difficult to imagine the AA sub would surpass it.

But you don't think that amp can really put out 800 watts, do you? Or that it can dig as low as 20Hz? If you do, then I have some ocean front property in Montana I'd like to sell you...

[frogmort]

Originally Posted by theJman

No doubt; the Monoprice sub is HTiB class, so it's not difficult to imagine the AA sub would surpass it.

But you don't think that amp can really put out 800 watts, do you? Or that it can dig as low as 20Hz? If you do, then I have some ocean front property in Montana I'd like to sell you...

No, I don't really believe that it can put out 800 watts, or go flat to 20hz, but for the price, I am pretty amazed at what it can do though. Here is the out of the box performance graph that Big Daddy made, from post #1:

I am very happy with my HD-SUB12. It goes great with my Boston Acoustics HPS-12HO. Now I just need two more!

[theJman]

I hadn't been there in a while, so just for the heck of it I checked DD's ebay page. There's only 3 HD-SUB10's, and that's it. Last time I looked they had a ton of stuff. Are they discontinuing the AA line, or is it perhaps DD has opted to sell almost exclusively from their own webpage? Something else maybe?

[derrickdj1]

Does adding polyfill void the factory warranty and any safety issues related to it's use inside the subwoofer cabinet?

[Big Daddy]

Originally Posted by derrickdj1

Does adding polyfill void the factory warranty and any safety issues related to it's use inside the subwoofer cabinet?

For most products, when you open the box, it will void the warranty. I assume opening the AA sub's cabinet and adding polyfill may void the warranty.

In my case, I never cared about the warranty and added polyfill to my AA subs, widened the openings, and changed the drivers. I suppose the Big Daddy warranty is worth more the warranty by the Deep Discount.

To understand the benfits of adding polyfill, read Post #2 of the https://forum.blu-ray.com/subwoofers...upgrading.html thread.

[jomari]

Originally Posted by derrickdj1

Does adding polyfill void the factory warranty and any safety issues related to it's use inside the subwoofer cabinet?

you can also see the instructions in adding polyfill via my ht gallery.

its been ages since ive updated it, but it does the job.

[derrickdj1]

This is one of the most insightful product forums that I have visited. I had my RW 15 sub for 4 days and it performs great. I re-did my auto-calibration last night and to my surprise, the settings changed dramatically. I did not move the subwoofer from it's normal position. The setting went from +3.5 to -3.0. This points to the fact that a break-in period occurs and the sub improves in function, sound quality, and efficiency over a couple of day. So, for new purchaser, sit back and relax.

[frogmort]

Originally Posted by derrickdj1

This is one of the most insightful product forums that I have visited. I had my RW 15 sub for 4 days and it performs great. I re-did my auto-calibration last night and to my surprise, the settings changed dramatically. I did not move the subwoofer from it's normal position. The setting went from +3.5 to -3.0. This points to the fact that a break-in period occurs and the sub improves in function, sound quality, and efficiency over a couple of day. So, for new purchaser, sit back and relax.

When I first got my HD-SUB12, I was really disappointed in the lack of deep bass and overall volume. After just one evening of blasting some bass heavy blu-rays and CDs, it started sounding much better. After several days, it was getting even better. I'm very happy with it now. I was a bit nervous that I had made a bad purchase decision, but it was really gratifying to hear it slowly improving a little more, and a little more.

[derrickdj1]

Big Daddy, is this considered a ported sub and is the slit opening on the bottom, the part that you suggested to enlarge? Just curious.

[Big Daddy]

Originally Posted by derrickdj1

Big Daddy, is this considered a ported sub and is the slit opening on the bottom, the part that you suggested to enlarge? Just curious.

Yes, the AA RW 15 subwoofer is a ported subwoofer. Its port is in the bottom and is a slot port as opposed the round port.

AA_RW15.jpg

No, I was not talking about increasing the slot port. I was talking about increasing the diameter of the driver opening in case you want to replace the driver.

[derrickdj1]

I have one LFE input on my receiver, can I connect to subs with y connector and not loose bass or volume? I know 2 sub's is suppose to smooth out the bass in the room. Some people say one good sub is the best option for HT.

[Big Daddy]

Originally Posted by derrickdj1

I have one LFE input on my receiver, can I connect to subs with y connector and not loose bass or volume? I know 2 sub's is suppose to smooth out the bass in the room. Some people say one good sub is the best option for HT.

Yes, I have connected eight subwoofers to a single LFE output on the back of the receiver with multiple Y adapters.

You can adjust the level of each sub independently so that they give you exactly the same level of output in your main listening area.

The people who say one subwoofer is the best option for HT do not have any idea what they are talking about. Even my little doggy knows that two subwoofers are better than one for all HT applications.

Two_sub_woofers.jpg

Tell them to read https://forum.blu-ray.com/subwoofers...oom-modes.html.

[drmittens]

Originally Posted by Big Daddy

Attachment 39962

That picture is freakin' hilarious!

My wife says awwww so cute.

I still say hilarious.

[derrickdj1]

Many people on this form use different brand subs, Brand should not be as important as sub setup, position and and size since low frequency sound is coming from the subwoofer. My point is that until you get pass the $700 dollar range the AA subs should perform as well as some of the other popular brand if not even better. How correct is this assumption?

[derrickdj1]

Maybe I should ask, that since voice and timber matching are not crucial for a sub, that until you get into THX or other advance subs, the AA is as good as epik, emotiva, klipsch and other brands in the under $700 market. True or false?

[Kryptron]

Originally Posted by derrickdj1

Maybe I should ask, that since voice and timber matching are not crucial for a sub, that until you get into THX or other advance subs, the AA is as good as epik, emotiva, klipsch and other brands in the under $700 market. True or false?

I wouldn't say the AA is as good as epik or emotiva. The AA are excellent subs in the price range they are in. They will definitely hold their own with most big box store subs price at twice the price but internet direct subs are another ball game. Epik and Emotiva would be better compared with name brand big box store subs in the around $800-$1k mark. No subs do not need to be timber match but sometimes when using two different subs you hear different outputs at different frequencies since enclosure, drivers and amps are not identical.. and then there is placement and phase correction to play with.

[markob50]

I have now hooked up 3 HD12s, unfortunately there is no more room. For the money they are doing a great job. I have two splitters on top of each other, coming out of my onkyo 705. I calibrated each sub individually, with the others off. They sound great to me. I now have to run Audessey.

[derrickdj1]

I am thinking of getting a second sub. I have the RWsub 15in audiophile and I was thinking of getting a AA 12 HD sub (black) to pair up with the 15in sub. I know you said get identical subs, but due to room asthetics, I would like something smaller. Will this work well since they have different wattage amplifiers and drivers?

[kw0225]

First post!

Just got my HD-Sub10 in the mail today. After playing a bunch with settings I was finally able to get it to actually produce some sound, but I'm wondering what the gain level should be set at. What are some of the levels you guys are using? Below about half way it does almost nothing, and right around 5/6 it starts to pick up in volume. It is hooked up through the subwoofer out on my receiver with a y adapter, and plugged into the right and left on the sub. Using it with a Denon AVR-2105 receiver and a pair of Mordaunt-Short Carnival 2's.

Thanks!

[theJman]

Originally Posted by kw0225

Just got my HD-Sub10 in the mail today. After playing a bunch with settings I was finally able to get it to actually produce some sound, but I'm wondering what the gain level should be set at. What are some of the levels you guys are using? Below about half way it does almost nothing, and right around 5/6 it starts to pick up in volume. It is hooked up through the subwoofer out on my receiver with a y adapter, and plugged into the right and left on the sub. Using it with a Denon AVR-2105 receiver and a pair of Mordaunt-Short Carnival 2's.

You can't really compare your settings to anyone else's because each environment is different. So are individual listening tendencies. That precludes direct comparisons.

All subwoofers take a while to break in, and will generally sound weak when you first use them. I wouldn't really consider doing any critical listening -- or evaluation -- for at least a dozen hours. As time goes on what you'll often find is the sound will become richer and more full-bodied, forcing you to turn the gain down some.

What do you have the subwoofer output set at in your AVR? I also turn that up a few dB during break in, and like the gain I'll usually need to turn it back down as the subwoofer breaks in.