Amp Reccomendations for Memphis Mojo 12

[THATpurpleKUSH 5,000+ posts]

I would contact them right now, but I do not know how big of an amp I will be getting, so I don't know how many amps I would ask them for in an alternator.

Then ask 1. do they make an alt for your specific car and 2. what sizes do they offer

 

[suhbaru]

Then ask 1. do they make an alt for your specific car and 2. what sizes do they offer

Alright thank you

 

[youdoofus]

I'd like to go above and beyond what the mojo needs, but I don't think I need to go that over. When I said I want to leave room for bigger subs, I meant maybe a 2500 or 3000 watt. It looks Mechman does not have any subaru alts. I could get one of their universals, but how would I know if it will fit? Are GP batteries better than XS power?

A universal alt would likely require mounting hardware to make sure it fits

 

[youdoofus]

Alright thank you

Might be able to get yours rewound and correct voltage limiting hardware installed in it. Unsure if that's possible with a stock wrx alt tho

 

[THATpurpleKUSH 5,000+ posts]

found these in a 5 sec google search for subaru wrx high output alternator

https://www.nationsstarteralternator.com/270-Amp-XP-High-Output-Alternator-for-Subaru-p/11024-270-xp.htm

https://www.dcpowerinc.com/high-output-alternators.html?q=%2Fhigh-output-alternators.html&make=Subaru&model=Impreza+WRX+STI&year=2006&engine=2.5L+H4+Turbo

 

[BOOMINGRANDPA 5,000+ posts]

Holy Crap is 8000 watts necessary? Is there a typical rule of thumb for how many watts you need in respect to your sub's rms?

this amp will do at least 2200rms Twisted Sounds TS1.8KW 1800w Monoblock Amplifier - SSA STORE this amp does over 3k SSA Store - Wolfram W-3000.1 Mono Block

 

[suhbaru]

found these in a 5 sec google search for subaru wrx high output alternator
https://www.nationsstarteralternator.com/270-Amp-XP-High-Output-Alternator-for-Subaru-p/11024-270-xp.htm

https://www.dcpowerinc.com/high-output-alternators.html?q=%2Fhigh-output-alternators.html&make=Subaru&model=Impreza+WRX+STI&year=2006&engine=2.5L+H4+Turbo

I found these as well, but I have no idea how many amps I need. Are alts always this expensive or is my car just very specific?

 

[THATpurpleKUSH 5,000+ posts]

I found these as well, but I have no idea how many amps I need. Are alts always this expensive or is my car just very specific?

Welcome to car audio //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

Get as big of an alt as you can afford...preferably from a reputable company.

 

[suhbaru]

Welcome to car audio //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

I never thought I'd have to spend more on an alternator than an amplifier lol I guess you're right

 

[THATpurpleKUSH 5,000+ posts]

As far as amps I'd suggest the Orion XTR2500 or the Wolfram 3k or go for broke with a Twisted Sounds 2.8k (actually does closer to 4k)

 

[suhbaru]

As far as amps I'd suggest the Orion XTR2500 or the Wolfram 3k or go for broke with a Twisted Sounds 2.8k (actually does closer to 4k)

Would these amps leave room for sub upgrades? What is the max rms wattage sub you can safely run on each of these?

 

[THATpurpleKUSH 5,000+ posts]

Would these amps leave room for sub upgrades? What is the max rms wattage sub you can safely run on each of these?

Sub upgrades beyond what you already have will require more amplifier power and more electrical upgrades. You can increase the cone area on the same amp or wire to a lower ohm load which will squeeze out a little more power.

The TS2.8k will push the sub closest to its maximum capability. Due to impedance rise when the sub plays it doesn't receive the full output of the amp. You can safely power subs with an amp rated for 3-4x what the sub is rated for.

 

[suhbaru]

Sub upgrades beyond what you already have will require more amplifier power and more electrical upgrades.

So you're saying the amps that you linked are only capable to power the mojo, and if i were to get a bigger sub, they would no longer provide enough power safely?

You can safely power subs with an amp rated for 3-4x what the sub is rated for.

Are you implying that an amp rated any less than 3-4x what the sub is rated for is not safe?

 

[suhbaru]

For everyone's enjoyment, here's the amp that blew the mojo //content.invisioncic.com/y282845/emoticons/rotflol.gif.b453361716769b8110ddefc85ff03cd2.gif

https://imgur.com/a/pHNGx

 

[suhbaru]

This is somewhat off topic, but I just found this battery from when my brother had a sundown sub. Would this be worth using? It's probably 2-3 years old.

https://imgur.com/a/TPjQr