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Forum: Hsu Research - Setup and Placement Recommendations April 25th, 2020, 7:48 AM
Replies: 7
Views: 23,482
Posted By dmass
cubby is ok

http://forum.hsuresearch.com/showthread.php?t=4549


My experience is that having the sub in a somewhat open cubby is fine. More important is WHERE in the room the cubby is and the location based...
Forum: Hsu Research - Speakers and Subwoofers August 24th, 2016, 7:24 AM
Replies: 8
Views: 11,923
Posted By dmass
In my case, my Magnepan 1.6 are in the front...

In my case, my Magnepan 1.6 are in the front left/right. My dual TN1220's are on the right wall 1/3 back from the front wall and 2/3 back from the front wall.

Given the subs side wall locations,...
Forum: Hsu Research - Speakers and Subwoofers August 23rd, 2016, 4:15 PM
Replies: 8
Views: 11,923
Posted By dmass
higher crossover points become more noticeable...

higher crossover points become more noticeable and don't integrate as well with the magnepan's unique planar sound quality character.
Forum: Hsu Research - Speakers and Subwoofers August 22nd, 2016, 7:17 PM
Replies: 8
Views: 11,923
Posted By dmass
dual HSU TN1220 plus Magnepan 1.6 here

I have been happy with my setup. Keep the crossover point low (below 50hz) and you will be happy.
Forum: Hsu Research - Setup and Placement Recommendations November 10th, 2015, 10:21 AM
Replies: 3
Views: 7,876
Posted By dmass
multisub whitepapers

spend some time on these whitepaper links, both Harmon and Geddes have spent time on the benefit of multiple...
Forum: Hsu Research - Setup and Placement Recommendations November 6th, 2015, 2:01 PM
Replies: 3
Views: 7,876
Posted By dmass
2nd sub can add bass volume but more importantly...

2nd sub can add bass volume but more importantly the second bass source will even out the bass response for the entire room.

If you are in a basement with a cement slab floor and cinderblock walls...
Forum: Hsu Research - Speakers and Subwoofers November 5th, 2015, 3:54 PM
Replies: 6
Views: 8,790
Posted By dmass
different driver versions?

Given your living legend status of having such a Hsu arsenal of tubes....Are all of the 12" driver's of the same version?

I have only two tubes but they are different versions. One with a HSU logo...
Forum: Hsu Research - Speakers and Subwoofers November 2nd, 2015, 4:41 PM
Replies: 6
Views: 8,790
Posted By dmass
Wow looks like you are using the TN1220 cylinders...

Wow looks like you are using the TN1220 cylinders as a tube trap wall treatments. That's impressive.
Forum: Hsu Research - Setup and Placement Recommendations October 18th, 2014, 8:37 PM
Replies: 13
Views: 12,712
Posted By dmass
http://forum.hsuresearch.com/showthread.php?p=1337...

http://forum.hsuresearch.com/showthread.php?p=133745

My minidsp experiences (with the HSU TN1220)
Forum: Hsu Research - Speakers and Subwoofers March 28th, 2014, 2:07 PM
Replies: 1
Views: 3,102
Posted By dmass
the bass optimizer serves two functions. A low...

the bass optimizer serves two functions. A low frequency rumble filter and a EQ boost tailored for the TN series subwoofers.

Since your other subwoofer is built to different design parameters, it...
Forum: Hsu Research - Speakers and Subwoofers March 28th, 2014, 2:04 PM
Replies: 3
Views: 3,432
Posted By dmass
increase your bass calibration level

sounds like you are running your bass level too low. I recommend increasing your bass level adjustment to keep the rats out of your subwoofer.
Forum: Hsu Research - Speakers and Subwoofers January 2nd, 2013, 4:44 AM
Replies: 0
Views: 3,076
Posted By dmass
HSU at CES or THE Show Vegas Jan 2013?

Will you be at CES or THE Show?
Forum: Hsu Research - Speakers and Subwoofers September 10th, 2012, 3:29 PM
Replies: 3
Views: 6,987
Posted By dmass
you may want to play with the reference level...

you may want to play with the reference level setting in your onkyo to tweak how dynamic eq works.

read about it here:

https://audyssey.zendesk.com/entries/73283-dynamic-eq-and-reference-level
Forum: Hsu Research - Speakers and Subwoofers June 22nd, 2012, 10:49 AM
Replies: 9
Views: 8,781
Posted By dmass
If you are hearing the sound with no RCA...

If you are hearing the sound with no RCA connections then it is not likely a ground loop hum.

So your first guess of background noise from older electronics may be the answer.

After further...
Forum: Hsu Research - Speakers and Subwoofers June 21st, 2012, 3:03 PM
Replies: 9
Views: 8,781
Posted By dmass
noise and LFE levels

Are you hearing a hum or static sound?

It is very important that you run your LFE output from your AVR at a fairly high level and then turn your external HSU amp down a little to compensate.

If...
Forum: Hsu Research - Speakers and Subwoofers February 24th, 2012, 11:30 AM
Replies: 10
Views: 6,003
Posted By dmass
2 subs will allow you to more easily provide an...

2 subs will allow you to more easily provide an even response across of your room.

Are you looking for a single sweet spot or room for multiple seats for listening?
Forum: Hsu Research - Speakers and Subwoofers February 6th, 2012, 5:38 PM
Replies: 9
Views: 8,781
Posted By dmass
The minidsp performs it's magic in the frequency...

The minidsp performs it's magic in the frequency domain and can implement modal based filters. I recognize that Audyssey adds time domain adjustments which you are correct is something worth...
Forum: Hsu Research - Speakers and Subwoofers February 6th, 2012, 2:49 AM
Replies: 9
Views: 8,781
Posted By dmass
The Crown XLS 1500 is a two channel amp and is...

The Crown XLS 1500 is a two channel amp and is powering my two TN1220HO's. With the minidsp I can and do EQ the two channels for the two HSU independently.

The minidsp actually has 4 channels out...
Forum: Hsu Research - Speakers and Subwoofers February 4th, 2012, 6:25 PM
Replies: 9
Views: 8,781
Posted By dmass
Bringing the HSU TN1220's into the modern era!

Teaching an old HSU dog new tricks adding Class D amplification and modern DSP processing...

I have been a happy owner of a dual set of HSU TN1220HO tubes for several years. My first tube was...
Forum: Hsu Research - Speakers and Subwoofers November 30th, 2011, 5:35 PM
Replies: 27
Views: 47,839
Posted By dmass
Are these new and improved 12" drivers...

Are these new and improved 12" drivers compatible with the older TN1220 tubes (which I have and use). What is the cost of the drivers and what improvement will I see in my TN1220's If I upgrade?
Forum: Hsu Research - Speakers and Subwoofers May 30th, 2011, 7:22 AM
Replies: 29
Views: 21,640
Posted By dmass
Any spec changes to what Pete Hsu posted earlier...

Any spec changes to what Pete Hsu posted earlier in this thread?
Forum: Hsu Research - Speakers and Subwoofers May 26th, 2011, 11:03 AM
Replies: 29
Views: 21,640
Posted By dmass
Bump for news?

Bump for news?
Forum: Hsu Research - Speakers and Subwoofers December 21st, 2010, 5:22 AM
Replies: 29
Views: 21,640
Posted By dmass
We can still dream can't we? Or are you saying...

We can still dream can't we? Or are you saying that santa and the easter bunny are not real as well?
Forum: Hsu Research - Speakers and Subwoofers December 4th, 2010, 7:23 AM
Replies: 29
Views: 21,640
Posted By dmass
TN1220 with new Crown XLS 1000 pro amps

I just purchased a new amp to upgrade my bass. I am using one of the new Crown XLS 1000 class D amps. You can read about my review here:

http://www.avsforum.com/avs-vb/showthread.php?t=1295375
...
Forum: Hsu Research - Speakers and Subwoofers November 27th, 2010, 8:51 PM
Replies: 29
Views: 21,640
Posted By dmass
$200 on ebay for HCA1000a

Power amps are available on ebay all the time. Unlike receivers that need to decode all of the latest digital bitstream formats, older poweramps are just as good as newer ones. Used power amps are...
Forum: Hsu Research - Speakers and Subwoofers October 27th, 2010, 11:48 AM
Replies: 29
Views: 21,640
Posted By dmass
With my Parasound HCA1000 2 channel amp and 2...

With my Parasound HCA1000 2 channel amp and 2 channel BFD DSP1124 PEQ I have no trouble setting separate volume levels and separate EQ filter settings for my two TN1220HO's.
Forum: Hsu Research - Speakers and Subwoofers April 9th, 2010, 1:09 PM
Replies: 29
Views: 21,640
Posted By dmass
thank you for the update. Although since I...

thank you for the update. Although since I already have 2 tubes....I am not sure I can fit any more tubes in my room. Maybe I will consider just updating the 12" driver to the latest and greatest. ...
Forum: Hsu Research - Speakers and Subwoofers April 4th, 2010, 1:09 AM
Replies: 29
Views: 21,640
Posted By dmass
TN1220HO II Anticipation Thread

http://forum.hsuresearch.com/showthread.php?t=27188

As mentioned in the above thread, the former glory era of HSU cylinder subs may be returning!

I own a pair of the original TN1220HO tubes and...
Forum: Hsu Research - Speakers and Subwoofers March 26th, 2010, 7:15 PM
Replies: 1
Views: 3,316
Posted By dmass
I purchase a used parasound hca-1000a amp and use...

I purchase a used parasound hca-1000a amp and use it to drive two TN1220 tubes with the HSU bass optimizer.

Two nice features of the parasound amp, one is that it has a 12 VDC trigger for...
Forum: Hsu Research - Speakers and Subwoofers April 12th, 2009, 9:39 AM
Replies: 5
Views: 4,401
Posted By dmass
Thank You!

Thank You!
Forum: Hsu Research - Speakers and Subwoofers April 11th, 2009, 7:44 AM
Replies: 5
Views: 4,401
Posted By dmass
Can I wire the two TN's in series instead of...

Can I wire the two TN's in series instead of parallel? In series will the TN's present a 8 ohm load to the amp?
Forum: Hsu Research - Speakers and Subwoofers April 10th, 2009, 5:27 PM
Replies: 5
Views: 4,401
Posted By dmass
TN1220 amp question

I am currently powering my dual TN1220 setup with a bass optimizer and a Parasound HCA1000 2 channel amp. I have plenty of power however, the Parasound amp does not have any cross over or phase...
Forum: Hsu Research - Speakers and Subwoofers April 6th, 2009, 5:08 PM
Replies: 4
Views: 4,057
Posted By dmass
I have started a discussion thread (with...

I have started a discussion thread (with additional waterfall graphs) on AVSFORUM. See here: http://www.avsforum.com/avs-vb/showthread.php?t=1136101

Sorry if it is bad form to cross post to...
Forum: Hsu Research - Speakers and Subwoofers April 4th, 2009, 10:46 AM
Replies: 4
Views: 4,057
Posted By dmass
How does one use REW to measure or detect phase...

How does one use REW to measure or detect phase issues?

I have the 2 TN1220's + HSU Bass Optimizer, 2 full range main speakers with useable base to 40hz, and a BFD PEQ. My receiver is set to...
Forum: Audio Equipment for Sale April 3rd, 2009, 1:33 PM
Replies: 8
Views: 4,288
Posted By dmass
track my dual experience...

track my dual experience here:
http://forum.hsuresearch.com/showthread.php?t=9286
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