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No more MINI
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126 Posts
Discussion Starter · #1 ·
Hi,

I have a new sound equipment and looking forward to install them into my MINI. but I strongly need proffisional advices to complete my task :)

The components of my Sound System are:

Head unit:
KENWOOD KDC-722 (3d Mask)

Front Speakers:
INFINITY Reference SERIES 6000CS 2-WAY Component System 6-1/2" 270W
Power Handling, RMS: 90 Watts
Impedance: 4 Ohms
Sensitivity: 92dB
Frequency Response (±3dB): 53Hz - 21kHz

Rear Speakers:
INFINITY Reference SERIES 9602i 2-WAY 6x9" 300W
POWER HANDLING: 100W (RMS)
Impedance: 4 Ohms
SENSITIVITY: 92dB
FREQUENCY RESPONSE: 46Hz - 21kHz

Subwoofers:
2 ROCKFORD FOSGATE RFP4210 10" Subs
frequency response 30-400 Hz
Sensitivity: 84 dB
Impedance: 4 Ohms

Amplifiers:
ROCKFORD Fosgate 501BD (500W Monoblock Subwoofer Amplifier)
300 w RMS x 1 @ 4 ohms
500 w RMS x 1 @ 2 ohms

DYNAMAT Sheets OFCOURSE !

Capacitor:
STINGER Pro-Capacitor 1 FARAD (High Performance)

Wiring Kit:
Stinger SWK8RS (PRO 8 GA. AMP KIT W/ RCA's 600 WATTS)

Planning to buy, but need your proffisional advice:
2 x ROCKFORD FOSGATE P3002 PUNCH 300 WATT (For my front and rear speakers, i like to have a lot of stuff in my car, thats why I choose 2 two channel amplifiers instead of 1 Four-Channel Amplifier.) :D
75 watts RMS x 2 at 4 ohms
150 watts RMS x 2 at 2 ohms
Frequency Response: 20 to 20k Hz +/- .5 dB

_________________________________________________
The sound system is crazy as i was told, but I am looking for links to a good How-To Links where I could find help on how to install all these components into my MINI. If you have any ideas of any kind, please advice me. And also, tell me please if the 2 Amps i have listed above will work great.

I have no good knowledge @ soundsystems :confused: :confused: but I am very handy when it comes to doing stuff into my car :D , I will feel bad spending approx. $400 Dollar installation :mad: ,, when I have a strong feeling that I could do this by myself and be proud of it. :cool: :cool: :cool:

Thank you. :)
 

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Diesel Powered
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290 Posts
Well it's going to be loud! If you're not worried about installing it yourself a good place to start is http://www.mini2.com/forum/faq.php?faq=mini_faq#faq_faq_interior which gives Mini specific help, the head unit install is an easy start. Tnoy66 is right to advise a specialist audio forum, he's had his previous cars featured in magazines here in the UK so he knows his stuff. I've installed Rockford gear in one of my cars in the past, it's powerful stuff, but the 1 farad cap is a must-have. I can't give you specific advice about what you need to do, but after doing a few cars myself it's wise to have a garage with plenty of space and good lighting, and don't rush the job. Plan it out thoroughly before you start, you don't have much space to work with in a Mini. Organise some alternative transport for when the Mini's in bits! As far as the equipment you're installing, make sure you build an enclosure that's the right interior volume for your subs, when I've used Rockford subs in the past (15" DVC) I found a sealed enclosure is best, very musical and quite small compared to a ported or bandpass. I'm sure you'll be able to get enclosure advice from Rockford themselves. One problem to watch out for is if you make the car into a bass monster you run the risk of pushing the full range speakers too hard so they don't get drowned out by the bass. So watch that gain dial, you'll fry the Infinities if you're not careful. I melted 3 sets of crossovers on my Rockford Fanatic Q components and that was with a Punch 200, don't make the same mistake!
And post some pictures when you do it. Good luck! :)
 

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POP..POPPOP..POP
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1,918 Posts
Hi, don't know if you posted on the other forum I mentioned, so I'll try and help you out a bit more here. I didn't have much time before to do a more complete reply.

Looking at what you have, I will make a few comments and ask a few more questions.
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The head unit, how many RCA pre-outs do you have and how are they labeled? I'm hoping it will be 3 and front, rear, sub.
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I've just looked at the RF website and found that your subs are not 4ohm, they are actually 4ohm Dual Voice Coils. This means you can only wire them to your amp to show a 4ohm loading. The correct way to wire these is shown here http://www.rockfordfosgate.com/rfte...+Voice+Coil+-+4+ohms+x+2&image.x=14&image.y=8 wiring option #2
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Your wiring kit you mention is only 8Ga. I would highly recommend you change this for a 4Ga kit as you are currently wanting to run 3 quite powerful amps. Seeing 8Ga melting is not a pretty sight :( http://www.talkaudio.co.uk/vbb/showthread.php?t=97473&page=1&pp=25
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You are wanting another amp or amps for running your other speakers. Have you thought about getting some 2nd hand ones to match your mono amp? This forum http://forum.sounddomain.com/ has a large classified section and is predominantly US based.

The P3002 PUNCH 300 WATT will be ok, but to simplify your install slightly, I would be tempted to get the P8004 4 channel instead. It's more powerful so won't have to work as hard as the P3002's to do the same job. It will also take up less space.
If you still want 2 more amps, I'd again go with a more powerful option, the next step being the P5002. Again it's more powerful so it doesn't have to work as hard and if you are likely to want to upgrade your front speakers at a later date, then you have a more powerful amp already installed.

Forward thinking can save you longer term
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What are you ultimately looking for with this set-up, Sound Quality or SPL (volume)? Are you trying to do a 'show' car?
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sa3dos said:
Hi,
I have no good knowledge @ soundsystems :confused: :confused: but I am very handy when it comes to doing stuff into my car
Having read this bit, I would urge you to read as much as possible before you even start to do this install. To do it properly and safely will take time. I would hate for you to throw everything in quickly and for it to sound terrible when you have finished, or even worse, for something to short-circuit and cause a fire.

Also remember that after you have completed your install, do NOT turn the volume to full immediately, speakers need running in the same way as an engine does. Keep playing various types of music and gradually increase your volume levels. The sound quality will improve as the speakers loosen up.

If you have any more questions please ask and I'll do my best to help you :)
 

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No more MINI
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Discussion Starter · #6 ·
Hello tnoy66,

thank you very very much for your time, in reply back to your post

The head-unit has 2 RCA Pre-outs (Front and rear),, how is that a problem ?

I will see what I can do regarding the 4Ga Wiring Kit.

I have still didnt decide whether I should purchse the p8004 or 2 x p3002 or 2 x p5002 because I have a project in mind, that is, putting two amplifiers behind the front seats on the floor (Where rear seaters put there legs) and add glass on top and maybe lights.

With this set-up, i am looking for a really really clear Sound Quality, Show-Car ? maybe and maybe not.

What is the difference of placing 2 Subwoofers in one box without an Air hole? With Air hole? Each One in a seperate enclosure without Air hole? with Air hole? or Placing them Up-Side Down !! I noticed a lot of show-cars place their Subs Up-side down !

peace
 

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POP..POPPOP..POP
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1,918 Posts
sa3dos said:
Hello tnoy66,

thank you very very much for your time, in reply back to your post

The head-unit has 2 RCA Pre-outs (Front and rear),, how is that a problem ?

I will see what I can do regarding the 4Ga Wiring Kit.

I have still didnt decide whether I should purchse the p8004 or 2 x p3002 or 2 x p5002 because I have a project in mind, that is, putting two amplifiers behind the front seats on the floor (Where rear seaters put there legs) and add glass on top and maybe lights.

With this set-up, i am looking for a really really clear Sound Quality, Show-Car ? maybe and maybe not.

What is the difference of placing 2 Subwoofers in one box without an Air hole? With Air hole? Each One in a seperate enclosure without Air hole? with Air hole? or Placing them Up-Side Down !! I noticed a lot of show-cars place their Subs Up-side down !

peace
Apologies in advance for the long post :eek:

Having 2 RCA pre-outs is not a problem, having 3 would just have meant 3 amps and 3 RCA's.....simple :) Also the crossover point may have been on the head unit too.

The way *I* would set up the system you are proposing is as follows........
Front RCA goes to an external crossover unit which then feeds the lowpass to the sub amp and the highpass to the front amp
Rear RCA goes straight to the rear amp.

Why an external crossover I hear you ask? Simply it gives you a more accurate setting crossover point. Wherever it is set, the crossing point is the same for both amps.
Looking at the 501BD you have a rotary crossover adjustment, I'm assuming it will be the same on the new ones. Lets say you set them both around the 80hz level, you could end up with one set at 75 and one at 85, so depending which way they worked you could either have a hole between 75 and 85 or both subs and front playing the same frequencies and muddling the sound.
If you want I will recommend a crossover which will do the job perfectly.

Regarding the rear amp/speakers, *I* would put a separate switch on the remote turn on lead to this amp. This would enable you to turn the amp on when you have passengers in the rear and off again when you have no-one in the rear seats.
When you run the fronts and rears together the sound will be dragged towards the rear of the car, turning the rears off will leave the sound up front where you need it to appreciate the quality.

Amp siting, I'm assuming you have seen Bianchiboys gallery?? He has 2 amps mounted the same way behind the seats. These were under glass, but due to cooling (or lack of) probs the glass/perspex has gone and perforated metal covers have been put in their place......still looks :cool:

Subwoofers and boxes........how long have you got :confused: :p People write whole books on the subject!!!
I'll say again, what *I* would do. Quite simple, 2 sealed boxes/chambers call them what you want. Keep them in separate boxes so that if one of them should die, it won't affect the other. I'm going to make a huge generalization here and say that sealed boxes will give you the best musical sound you will hear with the minimum of work. Occasionally you will hear a good musical ported (box with air hole) box, but only after quite a lot of work has been done to make sure the port is the correct size, both opening and length.
Upside down subs, not a problem providing you can get a good seal on the front. By doing it this way you can actually make the box slightly smaller because you haven't got the magnet sat inside the box.

An extra 2 pointers here for your sound quality, you may be tempted to put your tweeters in the original factory position, refit the door cards and be quite pleased. Instead, wire them temporarily to some long speaker cable and try them in various positions around the front of the car (make sure the speakers are run in first). Favorite places being, on top of the dash at the base of the A-pillar ( try various angles) or down in the kick well area pointing up to wards your roof mounted clock, again try various angles. Putting them lower down puts both front sound sources closer together, whilst angling the tweets up will help lift the level of the sound.
Also wire the speakers up normally to begin with, then try swapping the + and - wires on one speaker/tweeter and see how the sound stage (where the sound appears to come from) changes. In my last install I had 2 speakers (one either side) running "out of phase" to get the sound stage up above the dash.

OK fingers sore now :p
 
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