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» Termpro Audio Forum » Installer's Corner » Installation Tips, Tricks, & Techniques » Walled Panda in trouble (Page 1)

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Author Topic: Walled Panda in trouble
Vivaldipanda
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Hi lads, Im building a Panda here and now theres some mystery on my way ..

Running 2 x DD Z1's and 2 x 18" Atomic APXX's
4 x NSB90's and lalala

So i built my first box few months ago, it was 16 cuft when subs in, but the subs were fitted diagonal ... got lots of negative feedback about it, so decided to rebuild the box.
Same time 1 of the amps was faulty, gave out only half of the power and overheated really quick ..
So sent the amp to Germany, "First Class Audio", got it back and not sure yet, but seems its OK now

So the first build hit 155.4db average with 1 faulty amp, subs diagonal and 16 cuft box

Now i built a new box, 17.4 cuft when subs in, subs like the have to be, 1 on top of the other one, both amps healthy, peaking at 68hz and the SAME score, 155.5db average [Roll Eyes]
its slightly hotter at the moment, but it seems i did something very wrong or i dont get it now ...

Panda build pic album ---> http://s555.photobucket.com/albums/jj458/vivaldipanda/Panda/

All suggestions and help are more than welcome [Smile]

Cheers

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SS Panda under construction, 160.85db so far ...

Posts: 29 | From: the middle of bass | Registered: May 2009  |  IP: Logged | Report this post to a Moderator
quad box
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Are the amps gain matched? also did the number go down before or after Mat??

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05/06 IDBL 3rd/2nd PLACE WORLD FINALS
2009 Street Max

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Vivaldipanda
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Amp gains are matched with multimeter ...
Sry, didnt get what you mean with the "Mat" ...

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SS Panda under construction, 160.85db so far ...

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screechie
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Sub enclosure seem basically a free air design I think you need a better port.

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95 GMC SAFARI [ASTRO]4 MMATS JUGGS 15'S 4 MMATS D3000.1 24 CUBES 240 SQUARE INCH OF PORT @35 HZ 155+ TL ON THE DASH IN A STREET SETUP
Good judgment comes from experience, and often experience comes from bad judgment.
Rita Mae Brown

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quad box
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quote:
Originally posted by screechie:
Sub enclosure seem basically a free air design I think you need a better port.

nothing wrong with port from what i have seen

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05/06 IDBL 3rd/2nd PLACE WORLD FINALS
2009 Street Max

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quad box
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quote:
Originally posted by Vivaldipanda:
Amp gains are matched with multimeter ...
Sry, didnt get what you mean with the "Mat" ...

Dynamat???

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05/06 IDBL 3rd/2nd PLACE WORLD FINALS
2009 Street Max

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dB Drag Feldjaeger
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quote:
Originally posted by Vivaldipanda:

So sent the amp to Germany, "First Class Audio", got it back and not sure yet, but seems its OK now

If you send to First Class Audio something to repair, you can be sure after work its better than before...

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Mike Dupont
Head Judge dB Drag Racing

dB Drag Racing & Bass Race Videos @ dBtube.net

quote:
Originally posted by Wanna-B-Basshead:
you F****** IDIOT! STFU & GTFO & COADAD



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tekk45
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Do most Pandas have the port on left side, subs on right(if sitting in car looking out front windshield)?
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Bernie Madoff
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Welcome to this forum. I usually talk to you on CA.com. I'm Mr. Slate. These guys will get you up and going correctly.
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Vivaldipanda
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@dB Drag Feldjaeger

Yes, amp is more than fine, i will deal with them again in near future [Smile]

@tekk45
My Panda is RHD [Razz]

@Bernie Madoff
Nice to see familiar names [Smile]
Was here looong time ago, just didnt sign ..

Will go for the next test today or tomor [Smile]

 -

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SS Panda under construction, 160.85db so far ...

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tekk45
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Does the mic go in front of the subs or the port?
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Boogie Woogie
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if the car is right hand drive the mic will be in front of the subs

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Team Notoriously Loud Mafia
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I will drop to my knees and straight up junk punch you

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SPLTuscon
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Have you tried adding a large 45 degree angled piece behind the subs? I have seen a few successful walls using that layout instead of just a "box". It would also take up some volume which might help you.

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2005 Tuscon
2008 Street Stock A
146.7 Certified (Ranked #1)
2009 Street C (or whatever I feel like building for atm)

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quad box
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i know for sure now adding mat hurt my numbers by 6+ db

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05/06 IDBL 3rd/2nd PLACE WORLD FINALS
2009 Street Max

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JordyO
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quote:
Originally posted by quad box:
i know for sure now adding mat hurt my numbers by 6+ db

This isn't a Honda.. this is a Panda.

In a Panda adding Dynamat or some other type of deadener is a MUST.

[Wink]

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Team 2loud4you [Blob]
Stef's Crazy Team International [Alien]
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Tinted
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u gotta add some port

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 -

2006 Street A - 152.7 Certified
2007 Street C - 154.8 Certified
2007 Street A - 154.4 Certified
2008 Street C - 156.3 Certified
2008 Street B - 156.6 Certified

TEAM FEAR OF BASS

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quad box
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quote:
Originally posted by JordyO:
quote:
Originally posted by quad box:
i know for sure now adding mat hurt my numbers by 6+ db

This isn't a Honda.. this is a Panda.

In a Panda adding Dynamat or some other type of deadener is a MUST.

[Wink]

The cars are about the same all i know is i just found out when i painted the car and added matt the car dropped off big time! i took the matt out and when the panels ripple the spl goes up big time, thats why i asked him did the numbers drop before or after matt

--------------------
05/06 IDBL 3rd/2nd PLACE WORLD FINALS
2009 Street Max

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quad box
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quote:
Originally posted by Tinted:
u gotta add some port

his port seems to be the size i had to srink to, any widder and you could not keep the note under 80hz even adding depth did not help???

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05/06 IDBL 3rd/2nd PLACE WORLD FINALS
2009 Street Max

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JordyO
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quote:
Originally posted by quad box:
quote:
Originally posted by JordyO:
quote:
Originally posted by quad box:
i know for sure now adding mat hurt my numbers by 6+ db

This isn't a Honda.. this is a Panda.

In a Panda adding Dynamat or some other type of deadener is a MUST.

[Wink]

The cars are about the same all i know is i just found out when i painted the car and added matt the car dropped off big time! i took the matt out and when the panels ripple the spl goes up big time, thats why i asked him did the numbers drop before or after matt
I understand where you're coming from... just making sure there's no confusion.

Pandas need mat [Wink]

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Team 2loud4you [Blob]
Stef's Crazy Team International [Alien]
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murilo@soundigital.com.br
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quote:
Originally posted by quad box:
quote:
Originally posted by JordyO:
quote:
Originally posted by quad box:
i know for sure now adding mat hurt my numbers by 6+ db

This isn't a Honda.. this is a Panda.

In a Panda adding Dynamat or some other type of deadener is a MUST.

[Wink]

The cars are about the same all i know is i just found out when i painted the car and added matt the car dropped off big time! i took the matt out and when the panels ripple the spl goes up big time, thats why i asked him did the numbers drop before or after matt
Hello Quad, the cars are completely different.

--------------------
World's strongest amplifiers

Contact at

murilo@soundigital.com.br
(204) 416 3713

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audiobuffru1
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nice build ,why not do a 4th order bandpass ?

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ear drums are very over rated

r.i.p. greg welch

2005 dbdrags bassrace world finalist 120-129.9 3rd place finish

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Vivaldipanda
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Well, so many different opinions here [Razz]

Added 1 more sheet of ply on the back wall, didnt add the brace bar yet ...
Well i really miss a place where to test her [Razz]

So far 158.5, more work will be carried out, thanks for the support and comments, seems i have to pick up the right suggestions here [Smile]

--------------------
SS Panda under construction, 160.85db so far ...

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Bernie Madoff
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Told you that this forum is better then CA.com, lol.
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Cr@sh
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Have you painted or resined the inside of the box, also round all the corners on the inside of the box. Roundover the back of the holes where the speakers mount. What voltage are you running at? whats your impedance rise?

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The debate between Christians and athiest's has never been an intelectual one, but a moral one. When presented with evidence that they have no answer for they just sling mud and call us stupid!

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Vivaldipanda
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Not sure about the impedance rise yet, will find this out soon as i dont have a clampmeter so far ... Running on 12v system ...

Work in progress:

 -

 -

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Tomorrow will start to mess with fiberglass and the brace bar will be fitted as well

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SS Panda under construction, 160.85db so far ...

Posts: 29 | From: the middle of bass | Registered: May 2009  |  IP: Logged | Report this post to a Moderator
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