Is This Underpowering It Too Much?

Latest Vehicles

Chevrolet Silverado 2500HD (2008)
Vehicle Owner: smokeumtires
Date Added: 07 August 2010 - 08:52 AM

GMC Sierra (2002)
Vehicle Owner: Ray
Date Added: 29 July 2010 - 06:03 PM

chevy astro van (1994)
Vehicle Owner: camaro6991
Date Added: 03 July 2010 - 06:13 PM

Mazda 3i Sport (2010)
Vehicle Owner: ptcary
Date Added: 03 July 2010 - 05:08 AM

Chevrolet Silverado Ext. Cab Z71 (2005)
Vehicle Owner: Kryptic
Date Added: 02 July 2010 - 09:25 AM

Share Topic:

Page 1 of 1

You cannot start a new topic
Add Reply

Is This Underpowering It Too Much? for it to be not loud enough?

#1 qu1cks1lver56

160db

Group: Members
Posts: 2,531
Joined: 20-January 08
Gender:Male
Location:850

Posted 03 June 2008 - 07:57 PM

friend has a p400.2 and a p2 12" dvc 4 ohm sub.
i told him to run a coil per channel @ 4 ohms, but he seems to think he's underpowering it too much, what yall think?

My system:
CDA-9887
RF P450.4
RF T1k
RF Punch 6.5" Components
RF FNP 5.25" Components
MB Quart 3.5" Coax's
AA Assassin 8"
.4 cf sealed downfire

DownSouthCustom, on Jul 8 2009, 02:56 PM, said:

Trust me .25 Blows your Load.

Back to top of the page up there ^
MultiQuote
Reply

#2 Kranny

175db

Group: Members
Posts: 6,255
Joined: 14-October 06
Gender:Male
Location:Arlington Heights Illinois

Posted 03 June 2008 - 08:06 PM

whats the rms of the sub, and i would do that too, run each oil per channel.

BulletInjection, on 21 August 2010 - 10:50 AM, said:

Kranny, the creator of threads.

Boon, on 09 March 2010 - 12:16 AM, said:

at the shop I work at we install 1500w systems regularly with nothing more than an upgraded ground from the frame to the battery and I never see them coming back because a black hole has opened up and swallowed their children or something equally terrible...

Red-navi-916, on 08 June 2010 - 12:31 PM, said:

lol orly? thats like saying im going for a walk and getting hit by an air plane am i not correct?

94 Corolla Now: Hifonics Bx1605d, 2 12" DC Lv3's D4 coils, 3cuft box @ 35hz
Mids & Highs: CDT Audio Classic 4" CL-41/22 Components, MB Quart 6.5" DKH116 on RF 200a4 power

Back to top of the page up there ^
MultiQuote
Reply

#3 qu1cks1lver56

160db

Group: Members
Posts: 2,531
Joined: 20-January 08
Gender:Male
Location:850

Posted 03 June 2008 - 08:07 PM

its a 250rms sub.

This post has been edited by qu1cks1lver56: 03 June 2008 - 08:11 PM

My system:
CDA-9887
RF P450.4
RF T1k
RF Punch 6.5" Components
RF FNP 5.25" Components
MB Quart 3.5" Coax's
AA Assassin 8"
.4 cf sealed downfire

DownSouthCustom, on Jul 8 2009, 02:56 PM, said:

Trust me .25 Blows your Load.

Back to top of the page up there ^
MultiQuote
Reply

#4 Kranny

175db

Group: Members
Posts: 6,255
Joined: 14-October 06
Gender:Male
Location:Arlington Heights Illinois

Posted 03 June 2008 - 08:10 PM

damn i'd like a 2502rms sub!

im assuming you mean 250rms, its a dual coil so each coil is 125rms.

you could run each coil to each channel, but you'd gotta turn the gain down

BulletInjection, on 21 August 2010 - 10:50 AM, said:

Kranny, the creator of threads.

Boon, on 09 March 2010 - 12:16 AM, said:

Red-navi-916, on 08 June 2010 - 12:31 PM, said:

lol orly? thats like saying im going for a walk and getting hit by an air plane am i not correct?

94 Corolla Now: Hifonics Bx1605d, 2 12" DC Lv3's D4 coils, 3cuft box @ 35hz
Mids & Highs: CDT Audio Classic 4" CL-41/22 Components, MB Quart 6.5" DKH116 on RF 200a4 power

Back to top of the page up there ^
MultiQuote
Reply

#5 qu1cks1lver56

160db

Group: Members
Posts: 2,531
Joined: 20-January 08
Gender:Male
Location:850

Posted 03 June 2008 - 08:12 PM

yea, i edit'd it lol.
so its not underpowering it?

My system:
CDA-9887
RF P450.4
RF T1k
RF Punch 6.5" Components
RF FNP 5.25" Components
MB Quart 3.5" Coax's
AA Assassin 8"
.4 cf sealed downfire

DownSouthCustom, on Jul 8 2009, 02:56 PM, said:

Trust me .25 Blows your Load.

Back to top of the page up there ^
MultiQuote
Reply

#6 Kranny

175db

Group: Members
Posts: 6,255
Joined: 14-October 06
Gender:Male
Location:Arlington Heights Illinois

Posted 03 June 2008 - 08:15 PM

if the amp is 200rms a channel, sub is 125rms a coil. so you'd be infact overpowering it

turn the gain to 22.36v on each channel, that would give you the 125rms at 4 ohms on each channel that you would need for your sub.

BulletInjection, on 21 August 2010 - 10:50 AM, said:

Kranny, the creator of threads.

Boon, on 09 March 2010 - 12:16 AM, said:

Red-navi-916, on 08 June 2010 - 12:31 PM, said:

lol orly? thats like saying im going for a walk and getting hit by an air plane am i not correct?

94 Corolla Now: Hifonics Bx1605d, 2 12" DC Lv3's D4 coils, 3cuft box @ 35hz
Mids & Highs: CDT Audio Classic 4" CL-41/22 Components, MB Quart 6.5" DKH116 on RF 200a4 power

Back to top of the page up there ^
MultiQuote
Reply

#7 qu1cks1lver56

160db

Group: Members
Posts: 2,531
Joined: 20-January 08
Gender:Male
Location:850

Posted 03 June 2008 - 08:19 PM

heres the specs on the amp.
100W x 2 @ 4-Ohms RMS
200W x 2 @ 2-Ohms RMS
400W x 1 @ 4-Ohms bridged RMS
so its 200 peak per channel at 4 ohms, which is where he'd be at.
so what you think?

My system:
CDA-9887
RF P450.4
RF T1k
RF Punch 6.5" Components
RF FNP 5.25" Components
MB Quart 3.5" Coax's
AA Assassin 8"
.4 cf sealed downfire

DownSouthCustom, on Jul 8 2009, 02:56 PM, said:

Trust me .25 Blows your Load.

Back to top of the page up there ^
MultiQuote
Reply

#8 Kranny

175db

Group: Members
Posts: 6,255
Joined: 14-October 06
Gender:Male
Location:Arlington Heights Illinois

Posted 03 June 2008 - 08:23 PM

so he would be underpowering the sub by 25rms per coil.

100rms per channel at 4 ohms. Each coil is 4 ohms

1 coil on 1 channel 100rms, 1 coil on 2nd channel 100rms.

so for 100rms @ 4 ohms, turn the gain to 20v flat

BulletInjection, on 21 August 2010 - 10:50 AM, said:

Kranny, the creator of threads.

Boon, on 09 March 2010 - 12:16 AM, said:

Red-navi-916, on 08 June 2010 - 12:31 PM, said:

lol orly? thats like saying im going for a walk and getting hit by an air plane am i not correct?

94 Corolla Now: Hifonics Bx1605d, 2 12" DC Lv3's D4 coils, 3cuft box @ 35hz
Mids & Highs: CDT Audio Classic 4" CL-41/22 Components, MB Quart 6.5" DKH116 on RF 200a4 power

Back to top of the page up there ^
MultiQuote
Reply

#9 Kranny

175db

Group: Members
Posts: 6,255
Joined: 14-October 06
Gender:Male
Location:Arlington Heights Illinois

Posted 03 June 2008 - 08:24 PM

or if you said, 200rms bridged @ 4 ohms, then turn the gain to 28.28v

BulletInjection, on 21 August 2010 - 10:50 AM, said:

Kranny, the creator of threads.

Boon, on 09 March 2010 - 12:16 AM, said:

Red-navi-916, on 08 June 2010 - 12:31 PM, said:

lol orly? thats like saying im going for a walk and getting hit by an air plane am i not correct?

94 Corolla Now: Hifonics Bx1605d, 2 12" DC Lv3's D4 coils, 3cuft box @ 35hz
Mids & Highs: CDT Audio Classic 4" CL-41/22 Components, MB Quart 6.5" DKH116 on RF 200a4 power

Back to top of the page up there ^
MultiQuote
Reply

#10 01xtreme

160db

Group: 18+ All Access!
Posts: 2,808
Joined: 27-November 06
Gender:Male
Location:Bradenton, FL

Posted 03 June 2008 - 08:26 PM

im thinking that it should work pretty much perfectly. You're not expectiong to fosgate to do ONLY rated power are you? it will be fine hooking 1 VC per channel.

My System:
Pioneer AVH-P3200BT
4-Dayton 7 inch reference series (front doors)
8-Onkyo 3/4 inch tweeters (dash)
1-Sundown Audio 100.4D (mids/highs)
2-18" BTL's (for now)
Crescendo 3kwp (for sale)

Complete rebuild coming soon...

Back to top of the page up there ^
MultiQuote
Reply

#11 Kranny

175db

Group: Members
Posts: 6,255
Joined: 14-October 06
Gender:Male
Location:Arlington Heights Illinois

Posted 03 June 2008 - 08:27 PM

you have 2 options, 1 coil per channel or bridge it

BulletInjection, on 21 August 2010 - 10:50 AM, said:

Kranny, the creator of threads.

Boon, on 09 March 2010 - 12:16 AM, said:

Red-navi-916, on 08 June 2010 - 12:31 PM, said:

lol orly? thats like saying im going for a walk and getting hit by an air plane am i not correct?

94 Corolla Now: Hifonics Bx1605d, 2 12" DC Lv3's D4 coils, 3cuft box @ 35hz
Mids & Highs: CDT Audio Classic 4" CL-41/22 Components, MB Quart 6.5" DKH116 on RF 200a4 power

Back to top of the page up there ^
MultiQuote
Reply

#12 qu1cks1lver56

160db

Group: Members
Posts: 2,531
Joined: 20-January 08
Gender:Male
Location:850

Posted 03 June 2008 - 08:28 PM

01xtreme, on Jun 3 2008, 08:26 PM, said:

im thinking that it should work pretty much perfectly. You're not expectiong to fosgate to do ONLY rated power are you? it will be fine hooking 1 VC per channel.

youre so very right lol.

ill tell him to do that and see how it goes.
i dont think he'll be dissappointed

My system:
CDA-9887
RF P450.4
RF T1k
RF Punch 6.5" Components
RF FNP 5.25" Components
MB Quart 3.5" Coax's
AA Assassin 8"
.4 cf sealed downfire

DownSouthCustom, on Jul 8 2009, 02:56 PM, said:

Trust me .25 Blows your Load.

Back to top of the page up there ^
MultiQuote
Reply

#13 01xtreme

160db

Group: 18+ All Access!
Posts: 2,808
Joined: 27-November 06
Gender:Male
Location:Bradenton, FL

Posted 03 June 2008 - 08:35 PM

Krannyman92, on Jun 4 2008, 03:27 AM, said:

you have 2 options, 1 coil per channel or bridge it

no way to bridge it unless he bridges it to 8 ohms, cause the only other option would be 2 ohms bridged, and I dont think the amp would like that too much.