Best ported enclosure for a stereo integrity?

[ssmokeyy]

That is because you have not equalized them properly. 12db per octave boost below F3 is a lot of power, then the driver needs protection if you are going for high spl. Those Ultimax drivers have a very good reputation for excellent and deep bass of implemented properly in a sealed design. However they don't do well unless perfectly powered with correct Eq, and high passing so xmax is not exceeded.

I am certain that if you implement the correct drive to the subs you have, you won't need anything else. Sealed designs with good output, are always brute force designs. That is not my favored approach, as I prefer a more elegant approaches. That means not fighting against natures laws but using them to advantage.

i can produce all the deep bass any system could use, and do it with modest power. The other issue is achieving seamless integration from top to bottom and around the room.

I don't think i can fit the Dayton Audio UMII18-22 in my room. I put it in winisd and it wants a 9 cubic ft box. If i give it a 5 it drops off hard on the low end. Is that correct or is winisd doing something wrong?

Tls you said these si sql subs suck. Have u changed your mind on them? gsg audio mini marty would fit but has anyone used them and do they have a lot of port noise?

 

[Alex2507]

Have u changed your mind ... ?

I'm gonna chime in here and say no, almost certainly not ... ever ... about anything.

So the reason I want to chime in for real is that I have as it turns out 3 different subs that TLS Guy has modeled. Well, 2 because I sold the first pair off to a friend. The first was a pair of subs, then 2 drivers in one box and the third was a sealed deal that somebody else built and then sold to me.

He does a good job modeling these subs. I've become convinced that he knows stuff and I've had the pleasure of good bass as a consequence.

Good luck with your bass needs.

 

[Kingnoob]

All I'm using is audessey multi x. I can set points for every speaker. I can build any filter I need. But I have never had a problem with the xmech. Im giving them very controlled 1200 rms each. Not in the risk of damage zone. Need to be over 1600 rms before damage. I have push them to 1500 in car.

guess the stereo integrity site underestimated how much they can handle ?
Maybe I should have got the 1k amp for m
y model. But the bash amps had no limiters . So I can’t set it to 6-700max. Yet tons of brands use those wattage models.

I don't think i can fit the Dayton Audio UMII18-22 in my room. I put it in winisd and it wants a 9 cubic ft box. If i give it a 5 it drops off hard on the low end. Is that correct or is winisd doing something wrong?

Tls you said these si sql subs suck. Have u changed your mind on them? gsg audio mini marty would fit but has anyone used them and do they have a lot of port noise?

doubtful .
maybe ask on avs or diyaudio about the si sql subs. Lots of people have built them before on those sites . My si required a minimum 3 cu foot box for sealed , I went even bigger 4.5 or so. At that point I was going to port it but never got around to it because I thought I’d need additional bracing.

 

[ssmokeyy]

I'm gonna chime in here and say no, almost certainly not ... ever ... about anything.

So the reason I want to chime in for real is that I have as it turns out 3 different subs that TLS Guy has modeled. Well, 2 because I sold the first pair off to a friend. The first was a pair of subs, then 2 drivers in one box and the third was a sealed deal that somebody else built and then sold to me.

He does a good job modeling these subs. I've become convinced that he knows stuff and I've had the pleasure of good bass as a consequence.

Good luck with your bass needs.

TLS guy does know his stuff. Im just asking for the for a ton in a small room

 

[TLS Guy]

TLS guy does know his stuff. Im just asking for the for a ton in a small room

That is not impossible with the gear you have. Send me the details of the subs you have and I will model them. I think your best investment may prove be sub plate amps that could very well optimize your current subs. You absolutely should be able to get the results you want with the drivers you have.

 

[lovinthehd]

That is not impossible with the gear you have. Send me the details of the subs you have and I will model them. I think your best investment may prove be sub plate amps that could very well optimize your current subs. You absolutely should be able to get the results you want with the drivers you have.

What would the plate amps implement particularly that his current methods don't?

 

[TLS Guy]

What would the plate amps implement particularly that his current methods don't?

Because it makes implementation easier, as many of them are designed for just this purpose by providing the required boost below F3 and high passing to prevent driver damage. There are other ways of implementing this that would require more skill to implement and give more opportunities for error.

These units are designed for builders of sealed subs. This is not an issue with ported subs, as they decouple from the box below F3 and can not be equalized. But they should not need it anyway if the driver is any good and in a properly designed and built speaker, then F3 will be low enough. Sealed alignments always need precise Eq.

 

[lovinthehd]

Because it makes implementation easier, as many of them are designed for just this purpose by providing the required boost below F3 and high passing to prevent driver damage. There are other ways of implementing this that would require more skill to implement and give more opportunities for error.

These units are designed for builders of sealed subs. This is not an issue with ported subs, as they decouple from the box below F3 and can not be equalized. But they should not need it anyway if the driver is any good and in a properly designed and built speaker, then F3 will be low enough. Sealed alignments always need precise Eq.

So only pre-programmed plate amps with a specific implementation? That doesn't make a lot of sense. His amps are programmable afaik.

 

[TLS Guy]

So only pre-programmed plate amps with a specific implementation? That doesn't make a lot of sense. His amps are programmable afaik.

I doubt it. But we don't have details. You can not provide what is required from an AVP or AVR.

If you don't use a plate amp, then you need an equalizer between the sub outs and the woofer amps.

Those are the only two ways of 'skinning this cat'.

 

[lovinthehd]

I doubt it. But we don't have details. You can not provide what is required from an AVP or AVR.

If you don't use a plate amp, then you need an equalizer between the sub outs and the woofer amps.

Those are the only two ways of 'skinning this cat'.

I think he said he had PowerSoft amps, which should be quite configurable but didn't look back.

 

[TLS Guy]

I think he said he had PowerSoft amps, which should be quite configurable but didn't look back.

Then if he uses those, then he has to put the Eq right between the sub outs and those amps.

 

[lovinthehd]

Then if he uses those, then he has to put the Eq right between the sub outs and those amps.

Why when the amps have good eq?

 

[Kingnoob]

Why when the amps have good eq?

I forgot which ones he has.
Wow those are expensive $$$.

Powersoft Power Amplifiers - Sweetwater

Looking for Powersoft Power Amplifiers? Sweetwater has FREE Shipping and FREE Product Support for Power Amplifiers!

www.sweetwater.com

 

[ssmokeyy]

I have speaker power plate amps. For the rear si sql subs. The front psa audio sub has its own plate amp. I have the speaker power plate its listed on gsg audio page.https://shop.gsgad.com/products/sp1-1200-ht-mono-subwoofer-plate-amplifier

I also have the speaker power 4000 https://www.speakerpower.com/products/sp1-4000-ht

Im now one amp short. I need to order another amp or pull the crown xls 2002 back out. I have one more si sql 15 here but its a dual 4 ohm driver. The other sql subs are dual 2. Trying to find a sub amp that runs at 8 or 2 has been hard. Easy if I use the crown but in the plate world hard. I could order another 1200 but it would only give 600 rms out. Or I could run two 700 plate amps one to each coil. Seems like that would make things harder. If I order anymore subs its going to be some Daytons.

TLS GUY if u want to try to model these si sql subs in a ported box I would make two of them. Power will be around 1200 rms. Not sure how these amps are rated. Over or under rated.

 

[TLS Guy]

I have speaker power plate amps. For the rear si sql subs. The front psa audio sub has its own plate amp. I have the speaker power plate its listed on gsg audio page.https://shop.gsgad.com/products/sp1-1200-ht-mono-subwoofer-plate-amplifier

I also have the speaker power 4000 https://www.speakerpower.com/products/sp1-4000-ht

Im now one amp short. I need to order another amp or pull the crown xls 2002 back out. I have one more si sql 15 here but its a dual 4 ohm driver. The other sql subs are dual 2. Trying to find a sub amp that runs at 8 or 2 has been hard. Easy if I use the crown but in the plate world hard. I could order another 1200 but it would only give 600 rms out. Or I could run two 700 plate amps one to each coil. Seems like that would make things harder. If I order anymore subs its going to be some Daytons.

TLS GUY if u want to try to model these si sql subs in a ported box I would make two of them. Power will be around 1200 rms. Not sure how these amps are rated. Over or under rated.

I can not model those sql subs as their specifications are wrong and dishonest. When you load their published specs into Box pro, there are red circles all over the place. Get rid of them.

You don't need more than two or three subs at the most in that room. Your Dayton drivers properly implemented will do the job.

Those Spl. 15 are worst of the worst junk, and I'm not going to waste time on those.

 

[Kingnoob]

I can not model those sql subs as their specifications are wrong and dishonest. When you load their published specs into Box pro, there are red circles all over the place. Get rid of them.

You don't need more than two or three subs at the most in that room. Your Dayton drivers properly implemented will do the job.

Those Spl. 15 are worst of the worst junk, and I'm not going to waste time on those.

look discontinued, but $500 + each or so near the end of sales. So it must be considered a premium driver???
Here’s ops thread prior.

Anyone here use si sql-15 sealed fof theater duty?

So I have built subwoofer boxes before ported and sealed. I like sealed over ported. But I want to hit 19 hz with the thunder. Can the sql-15 hit 19 hz sealed over 105db with out sounding like its stressed out?

forums.audioholics.com

 

[Kingnoob]

Fromm google .
Stereo Integrity SQL-15 (Series 2) Specs
The SQL (Sound Quality Loud) series balances high fidelity with significant output, utilizing dual Nomex spiders and a treated paper cone.

StereoIntegrity.com +1



Thiele-Small Parameters

• Resonant Frequency (Fs): 23.8 Hz
• Equivalent Volume (Vas): 115 Liters
• Total Q (Qts): 0.42
• Linear Excursion (Xmax): ±28.4 mm (one-way)
• Sensitivity (SPL): 91 dB to 95 dB (configuration dependent)
  
  
  StereoIntegrity.com +3

Physical & Power Specifications

• Power Handling: 1,000 Watts RMS
• Mounting Depth: 7.4 inches
• Cutout Diameter: 14.20 inches
• Overall Weight: 28 lbs
• Enclosure Displacement: 0.16 cubic feet
  
  
  StereoIntegrity.com +1

Enclosure Recommendations

Driver Model Sealed Volume	Driver Model Ported Volume	Driver Model Port Tuning
HST-15 1.0 ft³	HST-15 1.6 ft³	HST-15 23 Hz
SQL-15 2.0 ft³	SQL-15 4.25 ft³	SQL-15 22 Hz

AI can make mistakes, so double-check responses

 

[ssmokeyy]

I forgot all about that thread. Last time I picked the sealed box after everything. Today I started building a test box ported. Im going to do one box hook up one sub run some testing and see what it looks like before and after. Aimed for 4.5 before subwoofer, port, bracing. After everything it should be 3.8 tuned to 22. Also in that other post tls guy was able to model the sql 15 but can't now. Wonder what has changed. Did stereo integrity change a spec listed on the site makes me wonder.

 

[lovinthehd]

I forgot all about that thread. Last time I picked the sealed box after everything. Today I started building a test box ported. Im going to do one box hook up one sub run some testing and see what it looks like before and after. Aimed for 4.5 before subwoofer, port, bracing. After everything it should be 3.8 tuned to 22. Also in that other post tls guy was able to model the sql 15 but can't now. Wonder what has changed. Did stereo integrity change a spec listed on the site makes me wonder.

Have you thought about a more uniform approach, i.e. same driver in same boxes ? Or done it?

 

[Kingnoob]

Have you thought about a more uniform approach, i.e. same driver in same boxes ? Or done it?

I don’t understand how there not loud enough at 2.5 cu foot, but maybe op is chasing more ulf ? A large ported box may be ideal . How big I couldn’t say but op has model software.