HSU Research Forum (HRF)  

Go Back   HSU Research Forum (HRF) > Hsu Central > Hsu Research - Speakers and Subwoofers
Forum Help Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Rate Thread Display Modes
  #1  
Old May 13th, 2020, 11:12 PM
andyadler andyadler is offline
Registered User
 
Member Since: Mar 2004
Location: New Orleans
Posts: 30
andyadler is on a distinguished road
How to integrate a Mid-Bass Module with an existing dual-sub system?

Hi all. Im currently running a HT system using a VTF-3 and TN1220 (the latter powered by a Hsu 500 Watt amp. I also have a MBM that had been in use in another room, and now Id like to add it to my current configuration. The two subs run to the pair of sub-outs on my Yamaha TSR-7810 receiver. Do I need to split one of those to accommodate the MBM? Or is there a better approach?

Thanks very much...A.
Reply With Quote
  #2  
Old May 14th, 2020, 3:27 PM
Kevin_Hsu Kevin_Hsu is offline
Administrator
 
Member Since: Jun 2012
Location: CA, USA
Posts: 371
Kevin_Hsu is on a distinguished road
Do you know if you can set independent distances for each sub out?
Reply With Quote
  #3  
Old May 18th, 2020, 3:15 PM
Sorny's Avatar
Sorny Sorny is offline
Opinionated Member
 
Member Since: May 2003
Location: Owatonna, MN (60 miles S. of Minneapolis)
Posts: 182
Sorny is on a distinguished road
IMHO, the best way to run multiple subs is with a MiniDSP 2x4HD fed from a single sub/lfe output. It's more work, but the results can be simply outstanding.
__________________
No! Try not... Do, or do not... There is no try.
Reply With Quote
  #4  
Old May 19th, 2020, 5:15 AM
andyadler andyadler is offline
Registered User
 
Member Since: Mar 2004
Location: New Orleans
Posts: 30
andyadler is on a distinguished road
Kevin: Yes, sub distances can be set independently. I have the TN1220 lying on its side behind my couch and the VTF in a near-corner of my listening/viewing space. At the moment the Mid-Bass Module is acting as an end table on one side of my couch, but not currently in use.
Reply With Quote
  #5  
Old May 19th, 2020, 5:20 AM
andyadler andyadler is offline
Registered User
 
Member Since: Mar 2004
Location: New Orleans
Posts: 30
andyadler is on a distinguished road
Sorny: Can you tell me more about how you use the MiniDSP in a multi-sub system?
Reply With Quote
  #6  
Old May 22nd, 2020, 12:39 PM
Sorny's Avatar
Sorny Sorny is offline
Opinionated Member
 
Member Since: May 2003
Location: Owatonna, MN (60 miles S. of Minneapolis)
Posts: 182
Sorny is on a distinguished road
Quote:
Originally Posted by andyadler View Post
Sorny: Can you tell me more about how you use the MiniDSP in a multi-sub system?
You would use a single subwoofer/LFE output from your receiver as input 1 of the MiniDSP. Each subwoofer gets an output from the miniDSP. Using REW and a measurement mic (Umik-1 or the like), you take measurements for each sub. Using REW, you can see the individual response of the subwoofers, including phase (delay). Using REW, you then adjust the subs to get them all in phase by adding delay to individual subwoofers on the output of the minidsp. Once all 3 subs are in phase, you use the EQ tool in REW to generate EQ filters for the combined 3 sub response to get your desired response; be it flat, or a house curve (where bass level rises the lower in frequency you go to better approximate how our ears work).

That's a high-level overview of how it is done. There are numerous application notes on MiniDSP's website for how to integrate multiple subwoofers, as well as many youtube videos about how it is accomplished.

REW is free software, though donations are welcome. A miniDSP 2x4HD runs about $200, and a umik-1 from minidsp runs under $100. So, it is adding about $300 worth of hardware, and whatever you choose to donate for the software, but integrating multiple subs without it is like herding cats and you're still at the mercy of room modes.

I went from 2 subs to 3, and then from 3 to 4. Once I got past the couple hours of learning curve on REW and MiniDSP plugin software, it was a breeze to get my subs behaving the best they can.

I've attached a couple graphs, showing what can be done with a MiniDSP/Umik-1/REW and 4 subs... The end result has a significant house curve by design. I could just as easily have EQ'd it flat, but I like the boosted low end bass as it sounds subjectively better to my ears.

This is not something easily done without proper tools, that that's what MiniDSP, Umik-1, and REW allow. They give you the tools to make outstanding subwoofers perform to their best; and HSU subs are definitely outstanding subs capable of incredible output and fidelity when you undo the damage the room is causing.
Attached Images
  
__________________
No! Try not... Do, or do not... There is no try.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes Rate This Thread
Rate This Thread:
 

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Forum Jump
 


All times are GMT -8. The time now is 9:10 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Forum Rules The Golden Rule: Treat others as you would want to be treated.

Technical Support: The best way to get tech support for serious issues is to call or email us. Questions asked on the forum may not be answered by qualified professionals.

No "Flaming": Spiteful talk and flaming wars will lead to "time-outs" for parties involved.

Shootouts: Shootouts are comparisons between products. We need to know about shootouts before allowing them on the forum, so call us and talk to the director of Sales before posting. Otherwise, your shootout may be removed.

Add to Reputation: Once you are a registered member, you can click this icon to add to the tally of other members' Rep Points. You must vote for seven other people before you can vote for the same person twice.

Report Bad Posts: Once you register, click this icon to let Administrators know if they should review a post. Please be specific as to why action might be needed.

HSU RESEARCH IS NOT RESPONSIBLE FOR COMMENTS MADE BY THIRD PARTY INDIVIDUALS ON THIS FORUM.

Thanks for reading the rules. Have a good time :)

In Association With