10" Alpine Type R Sub in factory box..

asbWRX04 · 05-26-2004, 11:53 PM

Hey Guys,

I bought an Alpine V12 MRV-F540 4 Channel Amp which puts out either 4x100 W RMS or 2x200 W RMS in bridged mode.

I was thinking of using the two rear channels in bridged mode to power my 10" Alpine Type R Sub and using the two front channels to power my 6.5" components. Do you think this will be enough juice for the sub? If not, how many watts would it need to kick? Any Mono Alpine AMP suggestions?

Thanks,

AMRik.

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asbWRX04 · 05-27-2004, 11:31 AM

bump u!

MomoWRX · 05-27-2004, 09:45 PM

Quote:

Originally posted by asbWRX04
Do you think this will be enough juice for the sub? If not, how many watts would it need to kick? Any Mono Alpine AMP suggestions?

Thanks,

AMRik.

1) NO
2) About 300-450 RMS is what this sub really needs
3) if you want to keep it all alpine you can go with the 500W mono block to get full potential. You could also get by with the 300W mono.

asbWRX04 · 05-28-2004, 01:34 PM

well 200 W RMS is 66% of what you are saying: 300 W RMS..

Do you think it's really worth it to get another AMP?

I mean I don't expect the bass to be booming but I do expect it to be doing something nice..

AmRIk.

the suicidal eggroll · 05-28-2004, 01:57 PM

what size is the factory box?

200 watts will power one just fine if you use a larger-than-spec box to bump up the efficiency a bit. I doubt the factory box is large enough to do this though.

asbWRX04 · 05-28-2004, 03:44 PM

Quote:

Originally posted by the suicidal eggroll
what size is the factory box?

200 watts will power one just fine if you use a larger-than-spec box to bump up the efficiency a bit. I doubt the factory box is large enough to do this though.

well.. the box is unusally large for a factory box or at least looks as though it is haven't checked the dimensions heres the link:

http://www.onlinecarstereo.com/CarAu...roductID=13204

I'm puttin 200 W RMS into that.. it should give a decent sound no? I know it's not the optimal setup and eventually will get a dedicated AMP..

AMRik.

offset · 05-28-2004, 06:19 PM

Quote:

Originally posted by asbWRX04
well.. the box is unusally large for a factory box or at least looks as though it is haven't checked the dimensions heres the link:

http://www.onlinecarstereo.com/CarAu...roductID=13204

I'm puttin 200 W RMS into that.. it should give a decent sound no? I know it's not the optimal setup and eventually will get a dedicated AMP..

AMRik.

Ya, I would believe you will be happy with it. Some people get the car audio bug and then it is never quite good enough. But for a starting setup, you should be pretty pleased.

offset

AspWhtRex · 05-30-2004, 01:45 PM

I think that be a decent clean sounding setup, I ran that setup in my accord except i had different stuff, I rana phoenix gold componet set and 1 10" alumapro alchemy, The amp was a clarion pro audi 4 channel, I used the 2 channels for the componets and the i bridged the other 2 to the sub, I thought the setup was very clean sounding and i was very happy, So I think it be just fine

asbWRX04 · 05-30-2004, 05:18 PM

i hate cicadas

AcquaCow · 05-30-2004, 07:24 PM

I have this box/sub:

Powered by this amp:

The amp is an alpine 3555. It is a 50wx4 that I have bridged to 200wx2 (RMS).

Plenty of power for that sub in an impreza. I just can't wait till I get a better box for it.

-- Dave

DetroitWRX · 06-02-2004, 09:28 PM

I have the same setup as AcquaCow but used Fosgate stuff of the same quality and ratting in a Subie sound box. Sounds great and I never felt I needed more than what I have. Is the Sub a dual voice coil sub or not that could be the decider.

MomoWRX · 06-02-2004, 10:32 PM

Quote:

Originally posted by the suicidal eggroll
what size is the factory box?

200 watts will power one just fine if you use a larger-than-spec box to bump up the efficiency a bit. I doubt the factory box is large enough to do this though.

Thats true Eggroll, it should be enough if he gets the recomended ported box size and have it tuned right. I was thinking about a .7 Cu ft sealed, like what i have.

asbWRX04 · 06-02-2004, 10:52 PM

My friend said that bridging 2 channels on a 4 channel AMP to run a sub is not going to sound right.. He reccomended I get a dedicated mono AMP to run the sub and use the 4 channel AMP to power all the speakers..

so i bought an ALpine MONO 350W RMS AMP to power the 10" Type R Sub w/ factory box.

and i'm gonna have the 4 Channel ALpine V12 MRV-F540 amp power the speakers..

It's gonna be pretty frickin load

amrik.

AcquaCow · 06-03-2004, 12:42 AM

eh, bridged brings up the THD a bit, but I don't think I can hear it through the rear seat anyways...

My 4 channel is fine for this. It's .002 THD in normal 4 channel mode...

asbWRX04 · 07-09-2004, 06:17 PM

hey guys i have the type R pictured above in my trunk now and only problem is it moves around during spirited driving and drags the carpet all over the place.. any ideas on how to secure the carpet and/or the sub?

rub a dub dub,

amrik

offset · 07-09-2004, 06:31 PM

Industrial strength velcro.

offset

wrxfx · 07-09-2004, 07:00 PM

Quote:

Originally posted by offset
Industrial strength velcro.

offset

fascinating.. where could i buy that? home depot?

let me know cuz i'll def. buy it..

AcquaCow · 07-09-2004, 07:55 PM

I use bungees =)

offset · 07-09-2004, 07:56 PM

Quote:

Originally posted by wrxfx
fascinating.. where could i buy that? home depot?

let me know cuz i'll def. buy it..

Yep, Home Depot or Lowes definately has it.

offset

the suicidal eggroll · 07-09-2004, 09:24 PM

If it drags the carpet with it though, velcroing the box to the carpet won't really do anything special. If you did that you'd have to mount the carpet to the trunk also

fastsubie · 07-09-2004, 11:46 PM

I put some under the carpet too in my 02. It worked well but if you pull the carpet up alot crap will stick in the velcro and it won't work as good.

Fess

mordy_2v · 07-12-2004, 08:11 PM

buy a 1/4 inch hardboard sheet at home depot. cut it to shape to fit the trunk. Use brackets to screw the sub box into the hardboard. nice no-sliding fit.

05-26-2004, 11:53 PM	#1
asbWRX04 Scooby Newbie Member#: 58665 Join Date: Apr 2004 Vehicle: 2004 Impreza WRX Platinum Silver	10" Alpine Type R Sub in factory box.. Hey Guys, I bought an Alpine V12 MRV-F540 4 Channel Amp which puts out either 4x100 W RMS or 2x200 W RMS in bridged mode. I was thinking of using the two rear channels in bridged mode to power my 10" Alpine Type R Sub and using the two front channels to power my 6.5" components. Do you think this will be enough juice for the sub? If not, how many watts would it need to kick? Any Mono Alpine AMP suggestions? Thanks, AMRik. * Registered users of the site do not see these ads.

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05-27-2004, 11:31 AM	#2
asbWRX04 Scooby Newbie Member#: 58665 Join Date: Apr 2004 Vehicle: 2004 Impreza WRX Platinum Silver	bump u!

05-28-2004, 01:34 PM	#4
asbWRX04 Scooby Newbie Member#: 58665 Join Date: Apr 2004 Vehicle: 2004 Impreza WRX Platinum Silver	well 200 W RMS is 66% of what you are saying: 300 W RMS.. Do you think it's really worth it to get another AMP? I mean I don't expect the bass to be booming but I do expect it to be doing something nice.. AmRIk.

05-28-2004, 01:57 PM	#5
the suicidal eggroll NASIOC Supporter Member#: 51961 Join Date: Jan 2004 Chapter/Region: TXIC Location: San Antonio, TX Vehicle: 2005 STi 2001 Nissan Sentra	what size is the factory box? 200 watts will power one just fine if you use a larger-than-spec box to bump up the efficiency a bit. I doubt the factory box is large enough to do this though.

05-30-2004, 01:45 PM	#8
AspWhtRex Scooby Specialist Member#: 29393 Join Date: Nov 2002 Location: York, PA Vehicle: 2005 VW Jetta GLI Platinum grey	I think that be a decent clean sounding setup, I ran that setup in my accord except i had different stuff, I rana phoenix gold componet set and 1 10" alumapro alchemy, The amp was a clarion pro audi 4 channel, I used the 2 channels for the componets and the i bridged the other 2 to the sub, I thought the setup was very clean sounding and i was very happy, So I think it be just fine

05-30-2004, 05:18 PM	#9
asbWRX04 Scooby Newbie Member#: 58665 Join Date: Apr 2004 Vehicle: 2004 Impreza WRX Platinum Silver	i hate cicadas

05-30-2004, 07:24 PM	#10
AcquaCow NASIOC Supporter Member#: 36838 Join Date: May 2003 Chapter/Region: MAIC Location: Oakton VA Vehicle: 2000 RS Sedan 2001 RSTi Sedan	I have this box/sub: Powered by this amp: The amp is an alpine 3555. It is a 50wx4 that I have bridged to 200wx2 (RMS). Plenty of power for that sub in an impreza. I just can't wait till I get a better box for it. -- Dave

06-02-2004, 09:28 PM	#11
DetroitWRX Scooby Specialist Member#: 18777 Join Date: May 2002 Location: Fredericksburg, VA Vehicle: 2002 WRX Wagon Sedona Red Pearl	I have the same setup as AcquaCow but used Fosgate stuff of the same quality and ratting in a Subie sound box. Sounds great and I never felt I needed more than what I have. Is the Sub a dual voice coil sub or not that could be the decider.

06-02-2004, 10:52 PM	#13
asbWRX04 Scooby Newbie Member#: 58665 Join Date: Apr 2004 Vehicle: 2004 Impreza WRX Platinum Silver	My friend said that bridging 2 channels on a 4 channel AMP to run a sub is not going to sound right.. He reccomended I get a dedicated mono AMP to run the sub and use the 4 channel AMP to power all the speakers.. so i bought an ALpine MONO 350W RMS AMP to power the 10" Type R Sub w/ factory box. and i'm gonna have the 4 Channel ALpine V12 MRV-F540 amp power the speakers.. It's gonna be pretty frickin load amrik.

06-03-2004, 12:42 AM	#14
AcquaCow NASIOC Supporter Member#: 36838 Join Date: May 2003 Chapter/Region: MAIC Location: Oakton VA Vehicle: 2000 RS Sedan 2001 RSTi Sedan	eh, bridged brings up the THD a bit, but I don't think I can hear it through the rear seat anyways... My 4 channel is fine for this. It's .002 THD in normal 4 channel mode...

07-09-2004, 06:17 PM	#15
asbWRX04 Scooby Newbie Member#: 58665 Join Date: Apr 2004 Vehicle: 2004 Impreza WRX Platinum Silver	hey guys i have the type R pictured above in my trunk now and only problem is it moves around during spirited driving and drags the carpet all over the place.. any ideas on how to secure the carpet and/or the sub? rub a dub dub, amrik

07-09-2004, 06:31 PM	#16
offset Scooby Guru Member#: 32636 Join Date: Feb 2003 Chapter/Region: MWSOC Location: Dayton, OH Vehicle: 2004 Impreza STi Silver/Silver	Industrial strength velcro. offset

07-09-2004, 07:55 PM	#18
AcquaCow NASIOC Supporter Member#: 36838 Join Date: May 2003 Chapter/Region: MAIC Location: Oakton VA Vehicle: 2000 RS Sedan 2001 RSTi Sedan	I use bungees =)

07-09-2004, 09:24 PM	#20
the suicidal eggroll NASIOC Supporter Member#: 51961 Join Date: Jan 2004 Chapter/Region: TXIC Location: San Antonio, TX Vehicle: 2005 STi 2001 Nissan Sentra	If it drags the carpet with it though, velcroing the box to the carpet won't really do anything special. If you did that you'd have to mount the carpet to the trunk also

07-09-2004, 11:46 PM	#21
fastsubie Scooby Specialist Member#: 21999 Join Date: Jul 2002 Location: Central PA (Sideways) Vehicle: 2005 STi Silver/Silver Goodness!	I put some under the carpet too in my 02. It worked well but if you pull the carpet up alot crap will stick in the velcro and it won't work as good. Fess

07-12-2004, 08:11 PM	#22
mordy_2v Scooby Specialist Member#: 3381 Join Date: Dec 2000 Chapter/Region: SCIC Location: Pornocopia Vehicle: 2007 TACO translucent	buy a 1/4 inch hardboard sheet at home depot. cut it to shape to fit the trunk. Use brackets to screw the sub box into the hardboard. nice no-sliding fit.