Rockford Fosgate Prime or punch amp? Others for stealth inst

Andrew-C
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Rockford Fosgate Prime or punch amp? Others for stealth inst

Postby Andrew-C » Mon Aug 13, 2012 4:03 pm

Hi all,

Weighing up my options for new stereo install in MY12 wrx hatch with factory sat nav H/U

Want to keep the factory H/U and looking to do a stealth install to keep everything look as new.

Still want to have full access to the boot/fold down seats, want the spare wheel, so it looks like under the seat is the only option for amps which obviously creates space issues.

I haven't upgraded a car stereo in 8-9 years so I'm totally out of the loop on what's good these days.

A little research has led me to the following by Rockford Fosgate

4 Channel amp - Prime R400-4D
http://www.rockfordfosgate.com/products ... mid=120544

Monoblock - Punch P400-1
http://www.rockfordfosgate.com/products ... mid=116170

Sub - P3SD4-12 (wired for 2 ohm load to get 400rms out of the above monoblock)
http://www.rockfordfosgate.com/products ... mid=120428

(Will likely be getting this enclose for the above sub: http://www.rockfordfosgate.com/products ... mid=120454)

Those are my primary thoughts.


As an alternative to the Monoblock, there is this:

Prime R500-1d
http://www.rockfordfosgate.com/products ... mid=233190

A little small, a little more powerful, but a 'lower' level amp in the RF range.


This is for a discerning daily driver, I listen to rock/metal and enjoy a reasonable amount of bass, no earth rattling RnB, no competitions etc.

I just want good quality, responsive audio.

Anyone have any experience / recommendations for the above setup?

Anyone have any alternatives that might be better?

Thanks

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Lupin
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Re: Rockford Fosgate Prime or punch amp? Others for stealth inst

Postby Lupin » Mon Aug 13, 2012 4:22 pm

Have you actually measured how much room there is under the seats.
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Andrew-C
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Re: Rockford Fosgate Prime or punch amp? Others for stealth inst

Postby Andrew-C » Mon Aug 13, 2012 4:43 pm

It's roughly 36cm wide x 25cm long.

All the above fit, with up about 13cm width, and 5cm length to spare.

I could go slightly larger, but I have people in the back with some regularity so trying to keep them small to avoid them getting kicked, and be confident they're 100% out of sight. Also would like to fit a farad capacitor under there if remaining space allows.

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Lupin
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Re: Rockford Fosgate Prime or punch amp? Others for stealth inst

Postby Lupin » Mon Aug 13, 2012 5:04 pm

Well there are options by the million for the small stuff.

The ARC stuff is small and has good power.
http://www.arcaudio.com/amps.asp

Then you have the Soundstream stealth series.
http://www.soundstream.com/html/amps-stealth.html
Or the nano series.
http://www.soundstream.com/html/amps-ta ... -nano.html

Like I said heaps of options. Mostly comes down to budget.
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Andrew-C
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Re: Rockford Fosgate Prime or punch amp? Others for stealth inst

Postby Andrew-C » Mon Aug 13, 2012 8:33 pm

Thanks Lupin.

On a related subject, I see in the specs for input sensitivity across various rockford fosgate amps that the input ranges vaires. i.e., a few of the options are:

a) 150mv - 5v
b) 150mv - 8v
c) 150mv - 11v

I understand that this is for matching the input/output between source and speakers. Is a larger range better in any way? or just more versatile or... what?

Thanks

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Lupin
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Re: Rockford Fosgate Prime or punch amp? Others for stealth inst

Postby Lupin » Mon Aug 13, 2012 8:42 pm

As your going to be using a line level converter of some sort. I'd go for the lower one.
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Andrew-C
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Re: Rockford Fosgate Prime or punch amp? Others for stealth inst

Postby Andrew-C » Mon Aug 13, 2012 10:31 pm

Thanks again.

Andrew-C
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Re: Rockford Fosgate Prime or punch amp? Others for stealth inst

Postby Andrew-C » Tue Aug 14, 2012 9:55 am

I've just come across this which would do the job of both amps (and for $500 cheaper)

Alpine PDX-V9
http://www.alpine.com.au/showItem.php?item_id=273

I think this is the way to go for me.

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REXV8S
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Re: Rockford Fosgate Prime or punch amp? Others for stealth inst

Postby REXV8S » Tue Aug 14, 2012 6:32 pm

I'm running the Rockford power series subs and amps.
And they have been great.

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Re: Rockford Fosgate Prime or punch amp? Others for stealth inst

Postby Andrew-C » Mon Aug 27, 2012 3:49 pm

I've swung back to the RF stuff now, rexv8s. I had expected the 'power' series stuff to be heaps more expensive, but for the setup I want the difference is minimal.

Can barely find any user info/reviews or anywhere running an alpine pdx-v9, I guess that's a bit of a bad sign in itself.

I'll be running the power series t400-4 for my speakers, and bridging the t400-2 amp for my sub.

Have read nothing but good reviews on the RF power series, and hearing them in the car of the audio installer sounded awesome. The guys at Freeway Car Audio were also kind enough to do a mockup install of the amps (just testing them in places, no wiring) and they fit sweet.

RF power series it is!

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REXV8S
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Re: Rockford Fosgate Prime or punch amp? Others for stealth inst

Postby REXV8S » Tue Aug 28, 2012 1:21 pm

Why not run a mono amp for your sub?
I'm running a T600-4 for speakers and a T1500-1 for 2 Rockford T1 10in subs

Andrew-C
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Re: Rockford Fosgate Prime or punch amp? Others for stealth inst

Postby Andrew-C » Wed Aug 29, 2012 1:19 pm

Doing an under-seat/stealth install.

4 channel takes up 1 complete side. Other side will be t400-2 + farad capacitor.

Monoblocks are all too wide to fit the cap under as well.

I'll be using the P3SD2-12 12" sub which is 400w rms.
http://rockfordfosgate.com/products/pro ... mid=120427

t400-2 bridged is 400w so it's a perfect match (and more importantly, it fits the install...)

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REXV8S
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Re: Rockford Fosgate Prime or punch amp? Others for stealth inst

Postby REXV8S » Wed Aug 29, 2012 2:01 pm

Isn't the t-500-1 the same size as the t400-2?

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Re: Rockford Fosgate Prime or punch amp? Others for stealth inst

Postby Andrew-C » Wed Aug 29, 2012 4:25 pm

You're correct, they are both 28.97cm wide.

However the t500-1 is also $400 more expensive, and I don't think I stand to gain anything by spending the extra for that extra 100w at the top end.

Aside from the power difference (which I don't think is relevant for me) the only thing the monoblock has that the 2chan doesn't is a Infrasonic filter which applies -3dB @ 28Hz. Do I want to pay $400 for that?

Seems like a lot of money to take a few db of a tiny freq band?

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