Not impressed with Sundown x-15v2, I hope its settings...Help and opinions needed

yup exactly what I suspected and thats your issue. Its a 2 volt pre-out head unit. With the sub level at 0, you arent even getting close to 1 volt preout for the head unit. Sub level/central needs to be up higher, volume knob needs to be almost 90% or higher then reset your gains.
Why does this matter> because you arent getting anywhere close to the full potential out of that hifonics brx 2400. You are taping into 40% potential power at best.
I'll go in sub central and turn up the boost. My volume is already about 90% and amp gain is about 75%.

 
I take that back. The sub central only has HZ. The next setting after that is bass boost.
this is the spec sheet for your head unit. PLEASE find this option. sub gain/sub level its in there. make it + 6. Sub ctrl is not central its control.

vMsKz7.jpg


 
this is the spec sheet for your head unit. PLEASE find this option. sub gain/sub level its in there. make it + 6. Sub ctrl is not central its control.
vMsKz7.jpg
80HZ......it goes from -24 - +6.........there is no gain...... I've checked and rechecked 1,000 times lol. The HZ is the only thing it has.

 
thats the slope, not the actual gain, you need to look harder lmao. its a completley different setting. Where you are at is only the crossover, not the gain level control.
Unless you find this option, every amp you get will have the same issue.
I agree... just follow the instructions in step 2 of the manual once you see the slope adjustment... using the MC you can switch between adjustments... da*m HU's so complex nowadays... lol

MC is "master control?"... I think... push it maybe then turn it?.. IDK

BTW... we are confusing the OP I believe by calling it "gain"... it's sub "output level" on the HU and it's -24 to +6

 
I still think that looking for a bunch of output difference going from this...

bFCf6bm.jpg


To a single Sundown X-15 on the same Hifonics amp is asking a lot... that's losing a ton of cone area... and the higher tune might be more to the OP's liking.... but get your deck understood and setup first by all means... wow... it's unbelievable that people get expensive subs and put them on low end amps and can't even adjust the HU... wow

And OP... thats a good looking box that Sundown is in btw... nice work

 
I still think that looking for a bunch of output difference going from this...
bFCf6bm.jpg


To a single Sundown X-15 on the same Hifonics amp is asking a lot... that's losing a ton of cone area... and the higher tune might be more to the OP's liking.... but get your deck understood and setup first by all means... wow... it's unbelievable that people get expensive subs and put them on low end amps and can't even adjust the HU... wow

And OP... thats a good looking box that Sundown is in btw... nice work
I went ahead and ordered a Orion xtr 2500.1d and h.o. alt. Alt will be in today, amp from 20th-22nd.

 
Good idea on upgrading the amp btw... I'm not sure that Orion the best choice IMO... but I'm not a dyno watcher... lol... this amp this guy has is ok... but I like even mo powa!... I'm kinda stupid like that... lol


 
Good idea on upgrading the amp btw... I'm not sure that Orion the best choice IMO... but I'm not a dyno watcher... lol... this amp this guy has is ok... but I like even mo powa!... I'm kinda stupid like that... lol


the orion xtr 2500.1 is a 3200 watt certified amp. Literally will be like running two brx 2400.1s lol

 
the orion xtr 2500.1 is a 3200 watt certified amp. Literally will be like running two brx 2400.1s lol
He's good then as I see it... of course he's gotta setup his deck correctly first and complete the electrical stuff he's doin'... sh*t... that's like 2 cabs strapped at 2 ohm... yep... that's 3K... just what that X-15 wants... lol

 
Activity
No one is currently typing a reply...
Old Thread: Please note, there have been no replies in this thread for over 3 years!
Content in this thread may no longer be relevant.
Perhaps it would be better to start a new thread instead.

About this thread

Thread starter
Spadepro22
Joined
Location
South Carolina
Start date
Participants
Who Replied
Replies
159
Views
9,625
Last reply date
Last reply from
Boomin_tahoe
IMG_1882.jpeg

slater

    Oct 4, 2025
  • 0
  • 0
Screenshot_20251004_120904_Photo Translator.jpg

1aespinoza

    Oct 4, 2025
  • 0
  • 0

New threads

Top