Hey y'all! So I got a cerwin vega hed 10 DVC in a sealed box and a nesa td-80 for an Amp installed on April 1st. I quickly found out I was bottoming out so I went back to the shop that installed it and upgraded to another cerwin vega, this time the VEGA 10", still in the same sealed box. Sadly I'm running into the same bottoming out issue, but I wanted to inquire about why thats happening. I also smell the coil after I play. Could that be due to too much power, or clipping? I'm on stock speakers and stock radio from factory In a nissan rogue sport.
https://cerwinvega.com/v102dv2-10-dual-2-ohm-1100w-subwoofer.html
Sadly it's a pre-built enclosure so I don't have the specs for my box.
Amp: https://www.onlinecarstereo.com/CarAudio/p_34913_Nesa_TD-80.aspx
Sadly it's a pre-built enclosure so I don't have the specs for my box.
Amp: https://www.onlinecarstereo.com/CarAudio/p_34913_Nesa_TD-80.aspx
Ported enclosure?
As suggested, a subsonic filter could help.
When an amp is driven into clipping, they tend to lose control of the woofer and that can cause bottoming.
Too much power is also a concern. Some voice coils will smell for a short time but it's generally due to the woofer being driven too hard.
If you rotate the enclosure so the woofer is facing front/back, does that make a difference?
As suggested, a subsonic filter could help.
When an amp is driven into clipping, they tend to lose control of the woofer and that can cause bottoming.
Too much power is also a concern. Some voice coils will smell for a short time but it's generally due to the woofer being driven too hard.
If you rotate the enclosure so the woofer is facing front/back, does that make a difference?
I have and it makes a difference, but ultimately, I think i either need a more powerful sub or a bigger box (maybe ported this time?)
@Perry Babin sealed enclosure, back I've tried, and front I've tried. The guy that installed it told me Don't put the sub facing the cabin tho
Edit: @paulys55 it's wired for 4 ohms.
@Perry Babin sealed enclosure, back I've tried, and front I've tried. The guy that installed it told me Don't put the sub facing the cabin tho
Edit: @paulys55 it's wired for 4 ohms.
Ported will be more problematic.
If you push on the cone until the woofer is fully back and then release, does the cone immediately return to center or does it slowly return to center?
A sub will often produce greater low bass when firing into a trunk or some other barrier. Facing forward is sometimes better for some systems and music. You have to decide what's best for your listening tastes.
If you push on the cone until the woofer is fully back and then release, does the cone immediately return to center or does it slowly return to center?
A sub will often produce greater low bass when firing into a trunk or some other barrier. Facing forward is sometimes better for some systems and music. You have to decide what's best for your listening tastes.
No. If it came back quickly, it would tend to indicate that the enclosure was leaking.
I think you're simply asking too much from the sub. If you haven't tried the subsonic filter do so, Set it to the highest frequency that you can without causing you to lose low-frequency bass.
I think you're simply asking too much from the sub. If you haven't tried the subsonic filter do so, Set it to the highest frequency that you can without causing you to lose low-frequency bass.
ok, since the box you already bought and there is no specs
you can calculate the tuning freq of it measuring the internal volume of the enclosure
just measure 3 sides of the box to get the volume ( L x W x H )
i guess it is MDF so lets say 3/4" MDF
so you need to substract that times 2 for your 3 sides
Example, imagine your box measure 12" x 10" x 12"
we will use 3/4" thick material for this calculation
so it will be... 12"-1.5" (.75 times 2 ) and 10"-1.5" and 12"-1.5"
so.... 10.5x8.5x10.5 is 937.12cm2 in liters it will be 15.35L
you need to measure yours...
below is the cerwing vega recommended volume sizes for your driver
0.75ft3 (21.20L) for sealed
1.25ft3 (35.37L ) for ported (bass reflex)
also
i see you have a subsonic filter set that around 40 to 43hz for now
let us know what are the dimensions of your box
BUT!!!!
looks like your driver TS parameters call for a higher tuning of 43HZ
so set your subsonic filter at 40 to 43Hz and see what happens
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