Jump to content
SAU Community

Recommended Posts

Hey,

Doing some research on amp wiring as I plan on installing the wiring to my temp amp. If im going to put in the wiring may as well set it all up for any future added amps.

Currently i have:

Aerpro 8gauge 4ch 600w amp wiring kit

Audioline 4x 75w RMS amplifier.

I find it hard to believe that the amp is 75w RMS, but thats what it states on the box...

Im planning on connecting 4 speakers to 1 amp and then buying a mono amp + sub.

My question are:

Will the 8gauge power cable provide enough power for both amplifiers?

Estimating that max 50w RMS per speaker (on the 4ch amp) and probably a 300-400w RMS 12inch sub.

How do i split the power for both amps? I read something about a distributor block?

Can the R32 alternator provide enough current for both amplifiers running on normal volume?

The 600w on the amp wiring kit refers to the max power the power cable can provide? Also the wiring kit has a 60amp fuse, will this need to be changed too?

Thanks for the help!

- Patrick

Link to comment
https://www.sau.com.au/forums/topic/152615-amp-wiring/
Share on other sites

Alternator will be fine. If you're having issues improve your grounding (eg battery negative to chassis, amp to chassis, etc)

Power runs: Either a single run from battery positive to boot, and then use a distributor block (it's like a splitter) to separate into each amp, or you can make separate runs from battery to each amp. Remember to add a fuse within 30cm of the battery however.

Link to comment
https://www.sau.com.au/forums/topic/152615-amp-wiring/#findComment-2838972
Share on other sites

see inserted comments.

Hey,

Doing some research on amp wiring as I plan on installing the wiring to my temp amp. If im going to put in the wiring may as well set it all up for any future added amps.

good idea.

Currently i have:

Aerpro 8gauge 4ch 600w amp wiring kit

Audioline 4x 75w RMS amplifier.

I find it hard to believe that the amp is 75w RMS, but thats what it states on the box...

Im planning on connecting 4 speakers to 1 amp and then buying a mono amp + sub.

thats a start. kit is good for that amp.

My question are:

Will the 8gauge power cable provide enough power for both amplifiers?

Estimating that max 50w RMS per speaker (on the 4ch amp) and probably a 300-400w RMS 12inch sub.

no. it will be enough for the 4ch you have only. if you are doing two I would suggest 4 awg and a 4-8awg distro block at the other end

How do i split the power for both amps? I read something about a distributor block?

correct.

Can the R32 alternator provide enough current for both amplifiers running on normal volume?

it can. when you start getting REALLY big then is becomes a concern.

The 600w on the amp wiring kit refers to the max power the power cable can provide? Also the wiring kit has a 60amp fuse, will this need to be changed too?

how big is the fuse(s) on the current 4ch that is there. if they are BELOW the 60A rating leave it be.

Thanks for the help!

- Patrick

no probs. send cheque to address in sig :/

Link to comment
https://www.sau.com.au/forums/topic/152615-amp-wiring/#findComment-2838974
Share on other sites

8 gauge will do the job, if the battery is in the boot, but I would probably use 4 gauge for power and earth cables just to be safe, only if you do go the additional mono block amp. If its just the 4 channel amp 8 gauge will be sweet.

If you need to split the cables you can use a distributer block such as in the link:

http://images.google.com.au/images?sourcei...sa=N&tab=wi

This basically makes the cable go in as one 8 or 4 gauge and then spits out as many 8 gauge cables as you need (1 for each amp). These have fuses in them also, but you should still have a fuse near the battery.

You can use one 60 amp fuse, place closed the battery, the cable from the battery to the fuse shouldn't be longer then about 30cm (so Ive been told by many) otherwise it wount protect your equipment as well. If you start blowing the 60 amp fuses easily when you turn it up a bit, go for an 80 amp, and it should be all good. This will all depend on how much power your amps have.

Just make sure you have really good grounding points. This can make or break your system!

Link to comment
https://www.sau.com.au/forums/topic/152615-amp-wiring/#findComment-2838984
Share on other sites

Thanks all for the quick responses. Appreciate it!

Chris, the cheque is on the way :)

Time to buy another pair of rca cable, 4gauge power and a distru block.

Now what to do with this 6metre 8ga power cable...

Guess it can be cut in half and go from distru to both amps.

Thanks all :/

Link to comment
https://www.sau.com.au/forums/topic/152615-amp-wiring/#findComment-2839000
Share on other sites

possibly. easier though to run it inside the drivers guard and through the main grommet there.

trying to install the amp wiring kit as i post this :pwned:

On a previous thread you posted for a r34:

put the wheel on full lock and peel the inner guard out. that will invlove removing the mud flap and a few screws above it. it will reveal a grommet about the size of a fist.

Is it the same for the R32?

Thanks :O

Link to comment
https://www.sau.com.au/forums/topic/152615-amp-wiring/#findComment-2857303
Share on other sites

trying to install the amp wiring kit as i post this :P

On a previous thread you posted for a r34:

Is it the same for the R32?

Thanks :)

Pull that inner guard out and all will be revealed, including a big grommet

Link to comment
https://www.sau.com.au/forums/topic/152615-amp-wiring/#findComment-2857309
Share on other sites

Just popped off the inner guard to reveal a large rubber grommet blocking my hole :P

Do i pop it out or do i make a hole through it? not sure how to get thruugh this thick rubber...

Edit: Made a hole using screwdriver :) the power cable is finally through ^^,

Link to comment
https://www.sau.com.au/forums/topic/152615-amp-wiring/#findComment-2857378
Share on other sites

  • 11 months later...

i'm in need of choosing a 4 channel amplifier and speaker cables.

is there any rule of thumb in terms of determining which gauge wire to use for the speaker/amp combo? (i.e. is it dependent on RMS or MAX?) been doing some research on gauges, impedance, ohms, amps, fuses, etc. and the Aeropro 4 channel kits seem to be what i'm after.

a run down on my current setup.

  • deh p4650mp (has only 1 rca pre-out. should i upgrade to maximize my 4 channel potential?)
  • 35W RMS 4ohms (220W MAX) fronts 6"
  • 40W RMS 4ohms (260W MAX) rear 6x9"
  • would i select for amp rms to match speaker rms (at matching ohms?)

few points i need clarification on.

  • the smaller the number (gauge wise) the thicker the wire and the higher the resistance. correct?
  • you would want to use the thinnest cable suited for your system's power. correct

comparing the 8ga and 6ga Aeropro kits

  • why is the trigger/remote cable & speaker cable thicker in the kit with the thinner power wire?
  • which of the two kits would suit me best, i'm guessing the 8 Ga.? i have no intention of upgrading nor do i want a sub
    Aeropro 4 Channel Amplifier Wiring Kit, 600 Watt 6 Ga.
    Kit contains:
    - 6M 6GA Clear Red Power Cable, 195 x 7 x 0.12mm, O.D. 8mm
    - 1.2M 6GA Clear Black Ground Cable, 195 x 7 x 0.12mm, O.D. 8mm
    - 5.5M 18GA Blue Trigger Wire , 16 x 0.25mm O.D. 2.4mm
    - 5M Clear Blue Double Shield RCA Cable, O.D. 9mm, 4 Plugs to 4 Right Angled Plugs
    - 10M 14GA Clear Speaker Cable,(182 x 0.12mm) x 2, O.D. 3.8 x 7.6mm
    - 1 Silver plated 4/8GA Fuse Holder (PS43) including 50 Amp Fuse
    - 4 Gold Ring Terminal, 8.3 x 7mm
    - 2 Gold Space Terminals, 5.3 x 3.8mm
    - 4 x 14/18GA Butt Connectors
    - 2 x 16/22GA Butt Connectors
    - 4 x 16/18GA GOld Speaker Female Terminals
    - 5 x 16/18GA GOld Spade Terminals 4.2 x 2.8mm
    Aeropro 4 Channel Amplifier Wiring Kit, 600 Watt 8 Ga.
    kit contains:
    - 6M 8GA Red Power Cable
    - 1.2M 8GA Black Ground Cable
    - 6M 16GA Blue Trigger Cable
    - 2 x 6 metre Twisted Pair RCA Leads with Right Angled Plugs on one end
    - 6M 12GA Speaker Cable
    - inline AGU Fuse Holder wirh 60 Amp AGU Fuse

cheers

eug

Link to comment
https://www.sau.com.au/forums/topic/152615-amp-wiring/#findComment-3604949
Share on other sites

if all you are doing is a small 4 ch then the 8awg kit will do fine. the 6 awg kit will have more speaker wire in it though.

as for AWG structure:

lower number = bigger cable = less resistance ( you had 'more' in your points)

for power that works well. for speakers - anything over under 16awg (numerically) to me is overkill.

questions - ask/ring me >_<

Link to comment
https://www.sau.com.au/forums/topic/152615-amp-wiring/#findComment-3605134
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • pffft! My alignments are starting to take 3-4 weeks each. Bugger overnight - that would be a dream! Overnight is when I leave it on stands with the rear suspension in pieces, hoping I can remember where I was at when I come back to it. I have to set the car up on a level surface so I can get decent camber measurements, then try to set the RUCAs to the right length to get that right. Then I have to put the car somewhere else where I have enough room to set up the bumpsteer gauge (laser, paper, mirror), so I can dial out that. Then I need to go measure camber again because changing the tension arm length affects that also. Then I need to measure toe, and I can't do that to my own satisfaction at home, so I have to put it on an actual aligner. Then I have to go back and fix the camber again, and if that took more than a half a turn, decide if I want to set up the bumpsteer measurements again. I previously had the bumpsteer almost completely banished and then I started changing things again! And that's only the rear end. Not even gotten to talking about the front yet. And this has been going on in the context of me discovering a seized bolt in the LHR FUCA bush at the upright, hence needing total disassembly to replace that bush and the others that were not far away from the same outcome, replacing sphericals in the front end and making a mistake that resulted in needing to do it again, which is only half done right now. It's a selfmade nightmare. Only have self to blame, etc etc. But regardless, I am so complelely unable to utilise the services of a normal wheel aligner that I have no choice. I haven't found a shop in my city that does "race" alignments - and by that I don't mean I want my car to be set up for racing, but the set of adjustments that I have available and that need to be used to do the alignment are the same as you'd find on a race car. I haven't looked everywhere, but there doesn't appear to be the equivalent of the motorsport focused shops that are present in Sydney and Melbourne. And such an alignment would cost $300, and you only want to do it once in a while, and you don't want to find out that you have to replace bushes and bearings and such while you are spending that $300 so you have to come back and spend it again a week later. So I stay living in my self made nightmare for the moment.  
    • Well, yeah, obviously. But then you have a turbo with 270kW "design", meaning it will have the higher boost threshold and lag of a bigger turbo, but only doing the work of a smaller turbo. That's the suck. That's actually exactly where I am right now, because my stocker exploded and I got Tao to do a highflow for me. I got a low pressure actuator on it and don't push it past ~10 psi or so, where the stocker was being run at ~12 psi. it makes a little more power than the stocker did, but it lags like a bitch. But, if I run any more boost it starts to ping and the ECU goes into panic mode, which cuts all the fun, so it clearly needs to be tuned. But, until such time as I (which is not I, it's my bro-in-law) can actually get the dyno working again, and get some injectors, and do all the swap over of those and the R35 AFM, I can't attempt to use the turbo the way it really deserves to. So what I have now is something that drives worse than what it did before it filled the cat with little pieces of turbine. I will tune it eventually, and probably only push it up to ~250-270 rwkW, which is pretty close to the max for that highflow anyway. I would imagine that by getting the tune right, and with newer betterrer injectors, we can probably make the boost come on a little earlier than it does now.** And if I do not think that the top end reward is worth the low end sacrifice, I will sell it off and convert to a G30, because the smaller ones of those come on boost very nicely on a 25 and make more power than I realistically need or want. The only reason I didn't do it at the time the turbo blew up is that I wasn't ready to sink a lot of money into an Artec manifold, reverse rotation turbo, the AFM and injector upgrade that would have been immediately compulsory, and the dyno was being problematic.*** It was easier and faster to just put the highflow on. And then, as I mentioned in an earlier post, even that is not "easy", because Tao's highflows use a shorter core than the Hitachi, so the compressor housing moves backwards in the bay, necessitating that all of the pipework had to get modded. ** And maybe just maybe, check the valve clearances and put new shims through, because I have recently seen firsthand on another motor that sloppy clearances on the shims can cost a lot of effective timing and lift and really slow an engine down. 3S-GTE in a Caldina got new shims, closing the clearances from just above the max to right down near the minimum, and it is a massively different car to drive. On boost the better part of 1000 rpm earlier!
    • ooooooh so this is where they get posted  Was at a wedding that day anyway, but the next one I will be there for SURE.
    • @PranK, why do we have this restriction? Because photos are the first thing that gets asked of new people on the forums. Do the spam bots post photos if allowed?
    • How do you rate the clutch @joshuaho96? Sometimes I wonder whether it's genuinely very driveable or whether I just feel that way because it cost a good chunk of money. Most recently when seeing the guy at the tyre shop struggle to move the car...
×
×
  • Create New...