Data-Bass Info Explanation Please - AVS Forum
Forum Jump: 
 
Thread Tools
Old 08-01-2014, 11:24 PM - Thread Starter
Advanced Member
 
randyc1's Avatar
 
Join Date: Dec 2009
Location: Montreal
Posts: 750
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 121 Post(s)
Liked: 23
Data-Bass Info Explanation Please

I'm comparing 2 very different Subs , Sealed SI 18" , 22" cube vs a Rythmik FV15HP.

Why when comparing Measurements like first one: (Max Burst), the Rythmik has higher SPL in lower Hz,..
Then when you look at (Basic Responce) & (Full Range Responce) graphs the SI 18" has a much higher Overall ?

Which graph demonstrates overall real world performance comparison ?
randyc1 is offline  
Sponsored Links
Advertisement
 
Old 08-02-2014, 12:26 AM
AVS Special Member
 
BassThatHz's Avatar
 
Join Date: Apr 2008
Location: East side of NW Cascades
Posts: 3,275
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 382 Post(s)
Liked: 444
They are so close the difference is trivial.
The SI is probably cheaper, thus better.
BassThatHz is offline  
Old 08-02-2014, 05:54 AM
AVS Special Member
 
eljaycanuck's Avatar
 
Join Date: Oct 2007
Location: Ottawa, Canada
Posts: 5,555
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 204 Post(s)
Liked: 587
OP, I had a similar question in this thread regarding the ChaseHT SS-18.1 (which I have) and the PSA XV15 (which I was contemplating buying).

The same question applies to the SS-18.1 vs. the UXL-18 in a sealed enclosure (which is my current project).

The SS-18 easily beats the other two subs in Basic Response and Full Range Response, but loses to them (but only below the ~50-60Hz mark) in Max Burst and Max Long Term Output.

If I'm never going to run my subs at reference, how were / are people able to state that the XV15 and UXL are superior to the SS-18?

I hope someone will chime in with a clear explanation.
eljaycanuck is offline  
Old 08-02-2014, 06:49 AM
AVS Addicted Member
 
Mfusick's Avatar
 
Join Date: Aug 2002
Location: Western MA
Posts: 24,242
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 197 Post(s)
Liked: 1018
Quote:
Originally Posted by BassThatHz View Post
They are so close the difference is trivial.
The SI is probably cheaper, thus better.
+1

-

"Too much is almost enough. Anything in life worth doing is worth overdoing. Moderation is for cowards."
Mfusick is online now  
Old 08-02-2014, 08:00 AM - Thread Starter
Advanced Member
 
randyc1's Avatar
 
Join Date: Dec 2009
Location: Montreal
Posts: 750
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 121 Post(s)
Liked: 23
Quote:
Originally Posted by Mfusick View Post
+1
Quote:
Originally Posted by BassThatHz View Post
They are so close the difference is trivial.
The SI is probably cheaper, thus better.
..If close,why is there such a difference in the Basic Rresponce?
randyc1 is offline  
Old 08-02-2014, 08:43 AM
AVS Addicted Member
 
Mfusick's Avatar
 
Join Date: Aug 2002
Location: Western MA
Posts: 24,242
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 197 Post(s)
Liked: 1018
The only thing that matters is SPL, extension, and distortion. If the SI 18 can play low enough and loud enough and with the limited amount of distortion you desire in a simple cubed sealed box, I don't see a lot of reason not to take that option. Your upgrade path is easy, add another. Use a nice amp with DSP or active electronics, really a nice value for the money. Assuming the money isn't a factor then I guess you can flip a coin.

-

"Too much is almost enough. Anything in life worth doing is worth overdoing. Moderation is for cowards."
Mfusick is online now  
Old 08-02-2014, 08:49 AM
AVS Special Member
 
basshead81's Avatar
 
Join Date: Mar 2013
Location: Fort Wayne, IN
Posts: 6,435
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 35 Post(s)
Liked: 1704
Quote:
Originally Posted by eljaycanuck View Post
OP, I had a similar question in this thread regarding the ChaseHT SS-18.1 (which I have) and the PSA XV15 (which I was contemplating buying).

The same question applies to the SS-18.1 vs. the UXL-18 in a sealed enclosure (which is my current project).

The SS-18 easily beats the other two subs in Basic Response and Full Range Response, but loses to them (but only below the ~50-60Hz mark) in Max Burst and Max Long Term Output.

If I'm never going to run my subs at reference, how were / are people able to state that the XV15 and UXL are superior to the SS-18?

I hope someone will chime in with a clear explanation.
Um the XV15 is flatter (due to dsp)then the SS-18 in both base and full range response so I am not sure what you are seeing. Also the SS-18 was messured with the powersoft K10 amp, so you are not getting withing 6db of those data-bass numbers above 30hz with any amp chane offers nor any behringer pro amp.

Aside from that base response and full range only means so much. The room response will change that. They key is to look at output, compression, and extension. Even if a sub shows higher distortion does not mean it will sound worse then a sub with less thd but has less output. Turn the sub that has significantly more headroom down just 1db from its max output numbers and you will reduce thd 50%.

Last edited by basshead81; 08-02-2014 at 10:12 AM. Reason: changed post...did not like how it read. :)
basshead81 is offline  
Old 08-02-2014, 08:58 AM - Thread Starter
Advanced Member
 
randyc1's Avatar
 
Join Date: Dec 2009
Location: Montreal
Posts: 750
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 121 Post(s)
Liked: 23
I have 2 Ported 3.6 cuft Dayton RSS315HO Subs . My room is big 22x23x8 and they cant keep up.

After seeing member Chalugadp going from Martycube's to 3 Micro 15"(21"cube) because they are more room freindly, got me thinking?

Would have simply puting the SI18'' in Sealed 22" cubes (similar to the Micro size) been a better option than going to Ported 15"

This is why i'm trying to understand the Graphs on Data Bass ?

Last edited by randyc1; 08-02-2014 at 09:01 AM.
randyc1 is offline  
Old 08-02-2014, 10:11 AM
AVS Special Member
 
basshead81's Avatar
 
Join Date: Mar 2013
Location: Fort Wayne, IN
Posts: 6,435
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 35 Post(s)
Liked: 1704
Likely not...Ricci tested all the DIY subs with his VERY
Expensive PowerSoft K10 amp. So more then likely you will see about 4-6db less output above 40hz with most cheaper pro amps aside from what the power ratings are.

The FV15HP would likely have similar output above 40hz and more in the 16-30hz compared to a Sealed SI18 driven by a Inuke 3000. The FV is using a true 600watt rms hypex amp and is servo driven. A Inuke 3000 will deliver about 6-700watts a channel in 2ohm for short bursts.

The FV15 probably has more output then your ported daytons due to the smallish enclosure. I would suggest adding 2 more 15's or going to ported 18's.
basshead81 is offline  
Old 08-02-2014, 10:38 AM
AVS Special Member
 
chalugadp's Avatar
 
Join Date: Jan 2013
Location: Vancouver, BC, Canada
Posts: 5,606
Mentioned: 20 Post(s)
Tagged: 1 Thread(s)
Quoted: 1209 Post(s)
Liked: 1166
Quote:
Originally Posted by randyc1 View Post
I have 2 Ported 3.6 cuft Dayton RSS315HO Subs . My room is big 22x23x8 and they cant keep up.

After seeing member Chalugadp going from Martycube's to 3 Micro 15"(21"cube) because they are more room freindly, got me thinking?

Would have simply puting the SI18'' in Sealed 22" cubes (similar to the Micro size) been a better option than going to Ported 15"

This is why i'm trying to understand the Graphs on Data Bass ?
I watched captain America 2 last night. Volume was -10 from reference. In my 4000 cuft room the micro-cubes were awesome. The nearfield sub was rocking the couch. It felt like I had bombs going off underneath me and all around me. That's what I want. Immersive, tight, tactile bass at -10 from reference. With my SPL meter explosions that were 90-100dbs loud were visceral.

My two minimartys ( one with uxl18) never sounded nearly as good when I had the two up front. Moving the mini beside the couch wasn't an option. The minimarty only felt somewhat tactile when SPL was over 113dbs.

The micro-cubes can play clean up to reference. After that its pushing it in my large room. Because I'm not looking for 120 dB's its perfect for me.
chalugadp is online now  
Old 08-02-2014, 11:29 AM
AVS Addicted Member
 
LTD02's Avatar
 
Join Date: Oct 2003
Posts: 16,852
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 566 Post(s)
Liked: 1170
also remember that for the diy systems josh is testing the systems with an extremely powerful amplifier.
Mfusick likes this.

Listen. It's All Good.
LTD02 is offline  
Old 08-02-2014, 12:48 PM
AVS Special Member
 
Fatshaft's Avatar
 
Join Date: Feb 2001
Location: Montreal, Quebec, Canada
Posts: 1,469
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 186 Post(s)
Liked: 237
Randy,

If you'd like you can borrow 2 of my SI'18's for a week or 2 and have some fun with them.
Let me know and I'd be more than happy to do so!

Kind regards,

My Build Thread
Equipment Speakers:
3x 1099's for LCR duty
4x Fusion 8's for surround duty
8x subs: 4x FTW21's and 4x SI18's
Fatshaft is online now  
Old 08-02-2014, 02:02 PM - Thread Starter
Advanced Member
 
randyc1's Avatar
 
Join Date: Dec 2009
Location: Montreal
Posts: 750
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 121 Post(s)
Liked: 23
Quote:
Originally Posted by basshead81 View Post
Likely not...Ricci tested all the DIY subs with his VERY
Expensive PowerSoft K10 amp. So more then likely you will see about 4-6db less output above 40hz with most cheaper pro amps aside from what the power ratings are.

The FV15HP would likely have similar output above 40hz and more in the 16-30hz compared to a Sealed SI18 driven by a Inuke 3000. The FV is using a true 600watt rms hypex amp and is servo driven. A Inuke 3000 will deliver about 6-700watts a channel in 2ohm for short bursts.

The FV15 probably has more output then your ported daytons due to the smallish enclosure. I would suggest adding 2 more 15's or going to ported 18's.
...Ok but how is the "Basic Reponce" graph on Data Bass Explained when comparing (SI 18" Sealed & the FV15HP) , why does the SI have so much more Output ?

I thought the Inuke3000 was tested to be 1100w@2ohm ?

Last edited by randyc1; 08-02-2014 at 02:26 PM.
randyc1 is offline  
Old 08-02-2014, 02:10 PM - Thread Starter
Advanced Member
 
randyc1's Avatar
 
Join Date: Dec 2009
Location: Montreal
Posts: 750
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 121 Post(s)
Liked: 23
Quote:
Originally Posted by Fatshaft View Post
Randy,

If you'd like you can borrow 2 of my SI'18's for a week or 2 and have some fun with them.
Let me know and I'd be more than happy to do so!

Kind regards,

Thanks FS ! , I will certainly consider it !! : )

Last edited by randyc1; 08-02-2014 at 02:13 PM.
randyc1 is offline  
Old 08-02-2014, 02:27 PM
AVS Special Member
 
basshead81's Avatar
 
Join Date: Mar 2013
Location: Fort Wayne, IN
Posts: 6,435
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 35 Post(s)
Liked: 1704
Quote:
Originally Posted by randyc1 View Post
...Ok but how is the "Basic Reponce" graph on Data Bass Explained when comparing (SI 18" Sealed & the FV15HP) , why does the SI have so much more Output ?
the response shape is untouched with the diy subs vs commercial. The FV15HP, XV15, VTF-15 etc... All have custom calibrated amps to shape the signal. That is why Inuke dsp amps are popular because it makes it fairly easy for the diy'er to shape the base response. This is part of the extra cost you pay buying Id being the subs are custom tuned to extract the most clean output. They do not just slap a amp and driver in the box and ship it off to the customer. There is a lot involved into shaping the signal(response) to get the most performance out of the subs without sacraficing sound quality.

Again the SI and any DIY sub shows a lot of output above 40hz because of Ricci 10kw power soft amp that runs in 6-8000.00 dollar range. Again you need to subtract about 4-5db off the top(50-125hz) on most of those subs for real world numbers that you would see with a budget amp such as the Inuke. Make sense?

That is the only issue I see with data-bass is the fact that the little things are not boldly stated and can be confusing.

Last edited by basshead81; 08-02-2014 at 02:37 PM.
basshead81 is offline  
Old 08-02-2014, 02:28 PM
AVS Special Member
 
basshead81's Avatar
 
Join Date: Mar 2013
Location: Fort Wayne, IN
Posts: 6,435
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 35 Post(s)
Liked: 1704
Quote:
Originally Posted by LTD02 View Post
also remember that for the diy systems josh is testing the systems with an extremely powerful amplifier.
X2. I believe I mentioned this but possibly you broke it down so it was easier to understand.
basshead81 is offline  
Old 08-02-2014, 02:31 PM
AVS Special Member
 
chalugadp's Avatar
 
Join Date: Jan 2013
Location: Vancouver, BC, Canada
Posts: 5,606
Mentioned: 20 Post(s)
Tagged: 1 Thread(s)
Quoted: 1209 Post(s)
Liked: 1166
I have found ltd02 graphs very accurate for real world performance. Tried over 5 setups ( different subs with each) with graphs he has provided and bang on each time. You would want 5dbs of headroom from his graph.

I know he's just using winisd, nothing magical but its nice to know its spot on.
chalugadp is online now  
Old 08-02-2014, 02:37 PM - Thread Starter
Advanced Member
 
randyc1's Avatar
 
Join Date: Dec 2009
Location: Montreal
Posts: 750
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 121 Post(s)
Liked: 23
...Ok Ok got it ,thanks ,.. so basically a Ported 15" will have more output than a sealed SI18"

With that in mind I will probably build a few Rythmik clones , with either the RSS 390HO or the SI15"

Last edited by randyc1; 08-02-2014 at 02:40 PM.
randyc1 is offline  
Old 08-02-2014, 02:44 PM
AVS Special Member
 
basshead81's Avatar
 
Join Date: Mar 2013
Location: Fort Wayne, IN
Posts: 6,435
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 35 Post(s)
Liked: 1704
Quote:
Originally Posted by randyc1 View Post
...Ok Ok got it ,thanks ,.. so basically a Ported 15" will have more output than a sealed SI18"
If you took a SI 15 in a maximum efficiency ported enclosure and put it up against a sealed SI 18 both using the same amp andpower, the 15 would have more output around the tune, the 18 would have more output above and below the 15's port tune.
basshead81 is offline  
Old 08-02-2014, 03:05 PM
AVS Special Member
 
chalugadp's Avatar
 
Join Date: Jan 2013
Location: Vancouver, BC, Canada
Posts: 5,606
Mentioned: 20 Post(s)
Tagged: 1 Thread(s)
Quoted: 1209 Post(s)
Liked: 1166
Quote:
Originally Posted by basshead81 View Post
If you took a SI 15 in a maximum efficiency ported enclosure and put it up against a sealed SI 18 both using the same amp andpower, the 15 would have more output around the tune, the 18 would have more output above and below the 15's port tune.
That's not what this says.

Ignore blue line. The rest are 15" in ported design.

Here is 18" in sealed design(blue line). All with 1100 watts



From 18-40hz ported better. Now I have never had sealed in my room. But I have sent micro-cubes to people with sealed 18" and they found signficant improvement.
chalugadp is online now  
Old 08-02-2014, 04:18 PM
AVS Special Member
 
Ricci's Avatar
 
Join Date: Mar 2007
Location: Louisville KY
Posts: 5,133
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 44 Post(s)
Liked: 243
Basic response and full range response are just that. These have nothing to do with how powerful a system is or how low it can effectively extend.

To see how capable a particular system is from a dynamic and sustained output perspective you would look at CEA-2010 burst data and long term output compression tests. For passive systems you would need to subtract a good 4-10dB from the CEA-2010 data at 40Hz and above to be representative of what a typical amp that would be "Safe" to use with these would be. Think of the CEA-2010 data for passive systems as maximum burst output before driver failure without a power limit. The amount of power varies with frequency and is greatly reduced at the lower frequencies. To see a better representation of what the passive system would do full bandwidth with a typical or appropriate amount of power look at the loudest long term output compression sweep. This represents an amount of constant voltage input and output from the passive system that it will survive over atleast a brief time from 2-125Hz.

A lot of this is covered in the "Know How" section at DB.
Mfusick, Archaea and randyc1 like this.
Ricci is offline  
Old 08-02-2014, 04:26 PM
AVS Special Member
 
eljaycanuck's Avatar
 
Join Date: Oct 2007
Location: Ottawa, Canada
Posts: 5,555
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 204 Post(s)
Liked: 587
I'm still not understanding.

The DIY UXL and the SS-18 were both tested with Ricci's powerful amp, yes? So what does it mean, in real-world terms, that the SS-18 easily bests the UXL - in terms of output - in both Basic Response and Full Range Response?

If there's no value to those measurements, why are they even there?

And if I never play my system at reference volume, will I actually notice the advantage that the UXL has in Max Burst and Max Long Term Output?

IOW, what actual improvement should I notice going from dual SS-18s to dual UXLs?

(The whole reason I'm making the $2,500 move to UXLs is to realize an improvement over the SS-18s.)

Thanks!

-- Edit --
Just saw Ricci's post. I'll go take a look at the "Know How" section.

Last edited by eljaycanuck; 08-02-2014 at 04:40 PM.
eljaycanuck is offline  
Old 08-02-2014, 04:43 PM
AVS Special Member
 
chalugadp's Avatar
 
Join Date: Jan 2013
Location: Vancouver, BC, Canada
Posts: 5,606
Mentioned: 20 Post(s)
Tagged: 1 Thread(s)
Quoted: 1209 Post(s)
Liked: 1166
At modest levels the uxl18 won't give you any advantage. If you don't listen louder the -10 dbs for movies its doubtful any better bass. The uxl18 only show there advantage over si and Dayton when pushed near its top. That's where you see the 4 db advantage. At reference the si and Dayton in a system might be near clean output maximum. In same scenario the uxl18 will have greater headroom and play clean louder. At -10 all the drivers have lots of headroom.
chalugadp is online now  
Old 08-02-2014, 04:46 PM
AVS Special Member
 
eljaycanuck's Avatar
 
Join Date: Oct 2007
Location: Ottawa, Canada
Posts: 5,555
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 204 Post(s)
Liked: 587
eljaycanuck is offline  
Old 08-02-2014, 05:02 PM
AVS Special Member
 
chalugadp's Avatar
 
Join Date: Jan 2013
Location: Vancouver, BC, Canada
Posts: 5,606
Mentioned: 20 Post(s)
Tagged: 1 Thread(s)
Quoted: 1209 Post(s)
Liked: 1166
Quote:
Originally Posted by eljaycanuck View Post
Thanks for the explanation, chaluga.
I'm not slamming uxl18 at all. Its capable of extreme SPL ,clean and tight. Just if you drive a Ferrari at just over the speed limit its a lot closer to a Lexus.[emoji41]
chalugadp is online now  
Old 08-02-2014, 05:29 PM
AVS Special Member
 
eljaycanuck's Avatar
 
Join Date: Oct 2007
Location: Ottawa, Canada
Posts: 5,555
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 204 Post(s)
Liked: 587
I didn't think you were slamming the UXL. It's just that I was under the impression* that a pair of sealed UXL subs would provide a noticeable improvement in sub-20Hz performance - down to as low as ~10Hz - in my room at my listening levels vs. my current SS-18s.

(*From comments made in this thread. A couple of examples:
- post #234 - " ... I think Eljay would see an enormous upgrade down low by replacing those SS-18.1s with UXL-18s to get 100-105dB @ 10Hz ... "
- post #255 - "Great choice. Nothing like changing subs that take up the same space and get low end gains equivalent to adding another quad pack of your current subs. ... ")

If they'll do that, I'm happy. If they won't do that, I'll have essentially wasted $2,500.

But I won't worry about the latter outcome just yet...

Last edited by eljaycanuck; 08-02-2014 at 05:40 PM.
eljaycanuck is offline  
Old 08-02-2014, 05:30 PM
AVS Special Member
 
Archaea's Avatar
 
Join Date: Apr 2004
Location: Kansas City, MO
Posts: 6,605
Mentioned: 40 Post(s)
Tagged: 2 Thread(s)
Quoted: 735 Post(s)
Liked: 874
21 posts to get to the answer --- from the man himself!


Basic response and full range response don't have anything to do with maximum output - they are just frequency response plots for the system's native unstressed frequency response. As long as those plots are taken above the noise floor and below threshold of compression they are accurate - regardless of SPL. You can't compare basic response to maximum long term output or burst. Basic response on something like the Rythmik (or any ID sub with built in EQ through DSP) goes out the window when you take a driver to the limit and you'll begin to see what the driver does at full bore. So a nice behaved flat line to 20hz on a ported sub, doesn't stay flat as you hit full tilt (well unless you are amp limited).


Something that will help you understand is to look at some compression sweeps. Basically a compression sweep is when you keep increasing the volume until the sub is tapped out. You'll notice the frequency plots change as the SPL levels increase on the same system.


Look at the long term output compression on the Rythmik FV-15HP
http://www.data-bass.com/data?page=system&id=51&mset=49


Under Extended Charts.


Then compare that to the SI 18" long term compression output which doesn't typcially change much on a sealed sub's native frequency response.
http://www.data-bass.com/data?page=system&id=90&mset=97




If you add EQ to the sealed sub and repeat the compression tests the same thing would apply. The boost you apply in the lower frequencies would disappear as you max out the SPL.

"Without subs it's just background music - with subs it's the main event!"
Archaea's Theatre Room
2011 KC Sub Shootout
2012 KC Blind Sub Shootout
My Subwoofer Recommendations by Pricepoint

Last edited by Archaea; 08-02-2014 at 05:49 PM.
Archaea is online now  
Old 08-02-2014, 07:14 PM
AVS Special Member
 
basshead81's Avatar
 
Join Date: Mar 2013
Location: Fort Wayne, IN
Posts: 6,435
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 35 Post(s)
Liked: 1704
Quote:
Originally Posted by chalugadp View Post
That's not what this says.

Ignore blue line. The rest are 15" in ported design.

Here is 18" in sealed design(blue line). All with 1100 watts



From 18-40hz ported better. Now I have never had sealed in my room. But I have sent micro-cubes to people with sealed 18" and they found signficant improvement.
yea but those charts are not the end all be all for determining sub performance either.
basshead81 is offline  
Old 08-02-2014, 07:22 PM
AVS Special Member
 
basshead81's Avatar
 
Join Date: Mar 2013
Location: Fort Wayne, IN
Posts: 6,435
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 35 Post(s)
Liked: 1704
Here is the long term output of between the SI18 and FV15.


and SI18 vs SS-18
Attached Thumbnails
Click image for larger version

Name:	Untitled.jpg
Views:	25
Size:	89.8 KB
ID:	193937   Click image for larger version

Name:	2Untitled.jpg
Views:	23
Size:	89.5 KB
ID:	193945  

Last edited by basshead81; 08-02-2014 at 07:27 PM.
basshead81 is offline  
Old 08-02-2014, 07:26 PM
AVS Special Member
 
chalugadp's Avatar
 
Join Date: Jan 2013
Location: Vancouver, BC, Canada
Posts: 5,606
Mentioned: 20 Post(s)
Tagged: 1 Thread(s)
Quoted: 1209 Post(s)
Liked: 1166
Quote:
Originally Posted by basshead81 View Post
yea but those charts are not the end all be all for determining sub performance either.
My real world experience along with bassthathz measurements with his pricey scope had the graphs I posted accurate. More then that I have 3 users who much prefer the ported 15 over the sealed 18". I'm not going to argue with you much bass since its your expert opinion that pushed me over the edge to go with the micro-cube. Here's a couple virtual beers [emoji482]
chalugadp is online now  
 
Thread Tools


Forum Jump: 

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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off