***Official HSU owners/support thread!*** - Page 63

Then Pete, change the operating directions on the material that comes with the sub.

Bill

I will have to check the speakers level but i do remember that the graph that shows when i set the levels that the speakers are up probably8 to 10 past "0"this has the receiver at about -15.i have thought of setting all speakers to their min.then setting receiver at "0" and then raising the speakers level to get 75 db.
As i have it now when running the receivers test tones to get 75 db as i stated the rec is at -15 but when i watch movies pretty loud the rec is at approx.-25 to 30.
it just seems to me that my mains overpower my subs,with the mains set at 75 db and subs at 80 db.i also am planning on running the sound and vision dvd tonight(av essentials or something like that)to set levels across the board,mains ,surrounds and subs.as opposed to the rec test tones.(i have avia but cant seem to put my hands on it since last move)but i dont remember this dvd checking different sub frequencies like the hsu calibration disc.i believe it just sends out 1 sub level test tone.
Anyway thanks for all your replies to my posts.i am running myself crazy trying to get satisfied with the ho and mbm results.
Dean

Does your receiver go to 0, or go past?

Instead of having -15 as your "reference level," with the speaker levels at +8~+10, you might adjust it so that -5 or 0 is your reference level. That way the speaker levels could stay around 0 or below. Then you can have your sub level around 0 and reduce the gain on the sub itself. With "RL" at 0, you'll be watching at -15 to -10 (I usually watch movies at around -10 to -7 or so).

What do you mean by overdamped response? Is this a good thing or bad?

Thanx for the info. The issue of balance between speakers, true sub and MBM output is a preplexing one. I have always been fooling around trying to get the "just right balance" and getting close. This is more preplexing when you run your mains as small. Having them as large does cure some of the balance problems as more bass is in the speaker side. I currently am running my reciever crossover at 150 hz and with the placement of the MBM's under the mains firing forward and I have just about the gotten to the perfect audio output for my room. Reciever is at -6.5 db, MBM's (11 ft from seat) gain at 11:00, 3.3's together behind seat (2 ft from seat) gain at 8:00. Then comes into play, to up the volume as needed, is a Paradigm X-30 sub volume controller just after the LFE line from the reciever. My mains are at +2.5. With the sub LFE I do have some room to go up on reciever db and down on X-30 volume in order to get a better balance. Reading your post will give me a better idea on the direction to go with this.

Thanx, Bill

My receiver(yamaha rx-v1800) goes from -50 to +50 i believe in .5db increments.
I will try this tonight,ive been concerned that at these low levels maybe i was missing something when setting levels,not enough signal to subs etc...when i set everything as i have there is no way i could watch a movie at -10to-15(which is what rec is at using test tones to get 75 db,it would run me outta the room(main levels anyway)im hoping the test tones on the receiver are louder than the levels when i use the blu ray to play the hsu disc?if thats the case maybe some of this will help if i use one source (essentials dvd)instead of rec.test tones for mains and then hsu disc for sub levels?
Ill keep you posted.
Thanks
Dean

Ill try this and keep you posted

Yes it does. When you have the turbo installed (or alternatively, one port plugged with no turbo), the port tuning is about 17Hz. If you remove the turbo and keep both ports open, then the port tuning is closer to 22Hz. So with turbo installed and the bass extension switch on the sub amp set to the '2 port open' mode, then the deep bass will be less rolled off compared to having both ports open with no turbo installed, but more rolled off compared to having turbo (or one port plugged with no turbo) with amp set to '1 port open/Turbo' mode.

Bori, when I say overdamped response, all I mean is an anechoic response that rolls off in the deep bass above the physical port tuning. So when running the sub with turbo (or one port plugged), you can either get a flat anechoic response using the '1 port open/Turbo' setting on the amp, or you can get a rolled off anechoic response using the '2 port open' mode on the amp.

Ok Pete, even with Turbos installed and both ports open mode, does it still get down to 17 hz? Also, I have mine co-located nearfield and so I'm going to give this a try.

Bill

Yes I want to know this too? If with the turbos on you still get down to 17hz in max output what is the benefit of Max Extension?

I had the Turbo installed and got great output at 16hz. Try it.

Sorry....missed the actual question:


ME mode EQ's the FR for a flatter response.

Bill, if one has a bit of room gain, then the subwoofer may still play fairly flat down to 17Hz.

OK, I did configure my 3.3's with Turbo's to MO and it made a difference in tone. MUCH BETTER! Iron Man was awesome and the room was rock n' rollen!
I'm so glad that this worked out after all this time and getting the right tone with the Turbos on. Now, having them right behind the seating area is OK but I think that I'll move them about 3 to 4 feet back, then they'll be 4 feet from the back wall. This should give me more omph. I'll try this tonite if the WAF gives me the time.

Bill

So you like the subs more with turbo on in Max Output?

Yep!

Are you still getting down deep to 16hz. Do you get alot more chest pounding bass? Is the difference very noticeable? Do you still have a crossover at 50hz along with the MBMs? I really want to try this because currently I have them in Max. ext. and I ran REW along with my room gain my subs go down to 10hz. So I am sure that I will still get some deep ext in max output. Just wanted to see if the difference in night and day and if its well worth it.

I have noticed a remakable difference with the Turbos and MO. I have to run my reciever Crossover at 80 hz and not 150 hz like before. The system does sound overall much better and since I haven't learned REW or anything else to measure the room EQ, I don't really know how low it does go. With the Anti Mode 8033B on the LFE all the time, I have a 25-35 hz lift going on and it gives an extra boost of around 4-6 db on the subs. Like a house curve I guess. Sounds awesome with it on and if you're down to 10 hz, I'm real curious to how my subs are doing.

Bill

Mine are down to 10hz in max extension not max output. I have not tried the Max output with turbos yet. Waiting for my other mbm-12. Do you still have the crossover on the 3.3 to 50hz?

Wow that's got to be some amazing room gain for 3.3's to be giving you strong response down at 10hz, even in max extension mode (Doesn't that tune the 3.3's around 16hz? Maybe Pete can help here ). You're getting more than half an octave of extra extension due to room gain, which is increadible IMO considering the 3.3's are ported. With your room gain, you'll probably get down to 15-16hz in max output mode!!

Yes, 3.3's are at 50 hx down, and MBM's with mains at 50 hz to 80 hz.

Bill

Do you get better impact bass? Do you have the subs co-located in one corner with the turbos on?

Here goes my graph that shows my freq. response starting at around 10hz.

Yes, moved the 3.3's with turbo to the right rear of the room co-located.

Bill

I am getting a very loud pop out of my hsu3.3 w/turbo that I purchased a couple months ago. Not sure what is going on??? I played the hulk tonight and it happened a couple times. I run the sub a little hotter then the rest of the speakers...about 2 db's hotter. It happened one other time a month ago and thought it was something that fell in the room. Now I am sure its coming from the sub...twice during the hulk...Its a big time POP! Any ideas?

Is it a blu ray and are you bitstreaming audio to a Onkyo?

AV is a Marantz sr7002 and bitstreaming through a ps3, but was not a bluray disc.

After viewing both BluRay and HDDVD clips I now have placed the 3.3's back behind the seating area at 2.5 feet, with 4 ft space between them, and they are 5 ft from the back wall. Turbos are on with ME mode engaged.

When they were co-located in the right rear corner, some material had localization issues with them and the Turbos with MO mode had alot of reverb.

Now with the change, listening is GOOD and I'll quit moving them around and leave things as they are.

Bill

So you are back to using them in Max Ext. mode? You didnt like the Max ouptut with turbos on?

I got my 3.3 Turbo about 2 months ago, too, and also run it with an SPL about 3 dB higher than that of the other speakers. Nevertheless, I have experienced no popping problems. It's clear that something is wrong with your system but I have no idea whether it's the sub or something else.

Well Now im getting somewhere!!!!!!!
I dont know exactly what made the big difference,in hindsight i guess i should have tried these one at a time but...
1.I set all speakers spl with the same disc,sound and vision av essentials,i think.
2.I turned all speaker levels to far left( min setting) ,then turned the avr to -5.then turned up speaker levels until i got to 75 db.i did run the subs to about 80 db.(i calibrated the mbm and 3.3 ho up as per cyberbri's post)
Now my speakers levels are +2.5 to +5.5 in the avr and i set the sub to -5 and got them to 80 db using the gain on subs.
NOW I GOT BASS,holy smokes!!!everything sounds much fuller,richer,i can even tell a big difference in dialog,it sounds like someones standing right in front of you as opposed to a recording,i dragged my daughter downstairs to watch ratatouille AGAIN and she about jumped off the sofa when the lightening struck.I then dragged my wife downstairs sunday night and though i have about run her crazy with all this,she too couldnt believe the difference,she said the same scene about gave her a heart attack!!
I again dont know what had the biggest impact but im definitely now getting what i paid for (sub wise)
My problem all along has been my mains were so much louder than my subs, i think, i just couldn't get to the root of the problem.i guess it was do to setting mains with avr test tones and then subs with hsu disc?But again now everything is balanced to a point where it sounds awesome.I still will get rew up and going and then ill be back with more questions im sure but for now im going to watch some movies.
Thanks so much to bsoko2 and cyberbri for all your answers and replies(pete at hsu also)as well as everyone else thats chimed in to my post after post after post.
Thanks
Dean

Yes, running them with Turbos and in ME mode placed just behind the seating area did it for me. I also used Mark Seaton's method for calibration (http://www.avsforum.com/avs-vb/showthread.php?t=1081017 number 7) and it did sound better in my room. The Jericho scene in IronMan hit 103 db, so I'm happy with the sub calibration and position.

Bill