Customers requests

[bugsy46]

Hey folks

So im just PDI'ng a new Honda ST1300 Pan and the parts guys bring up the heated grips, Honda averto alarm system and various other aftermarket tripe thats gotta be fitted.

Anyway, Bob the new owner who happens to work for us brings me Alpine car speakers and tomorow he's bringing in a JVC head unit which he wants fitting aswell! Bearing in mind these are rarely fitted to bikes or so i guess!?

Anyway I have no experience with car stereos but what I do know is this. They use a permanent live and switched live for the switching on of the radio and settings memory which is no problem, BUT!!, does anyone know what kind of current head units usually draw as I have yet to see the stereo and I cant find any specs online easily!

Cheers folks
____________________
Laura - "And where did looks come into this and bugsy leave steven alone. You are not gods gift to women you may think you are but you're not."
Keith - "All the best"

[iooi]

Perhaps asking on a goldwing forum might be a better idea.
I would guess that the radio should come with some details of what connections it needs.
____________________
Just because my bike was A DIVVY, does not mean i am......

[Ichy]

Hard to say without knowing the power output. 10-15 amps max would be a starting point for most standard stuff although 30-40 amps isn't unusual for higher powered stuff. Guess you'll have to wait and see what head unit it is.

[hmmmnz]

depending on the head unit it self, you are generally looking at around 150watts at full draw so roughly 12.5amps depending on the input voltage and the stereo it self.
a 15amp fuse should be more than enough for most stereos
____________________
the humans are dead
I kick arse for the lord
Wiring Diagrams BIDNIP it bitches

[bugsy46]

Well I just found out the speakers are 180W Im guessing that means each speaker right?! If so maybe this isnt such a good idea!
The head unit is a JVC 4x50w

I found out today that the honda goldwing OEM speakers are 15W only! Im thinking here of battery capacity and alternators working hard as the guy already has sat nav and heated grips.
____________________
Laura - "And where did looks come into this and bugsy leave steven alone. You are not gods gift to women you may think you are but you're not."
Keith - "All the best"

[hmmmnz]

the jvc like most stereos list there power out put at the peak, not the actual rms value, which is about 18w per channel,
and the same can be said for speakers, if you were to put a real 180watts through them, you would blow them to peices
you could happily power 500w speakers with 5w and they would still work fine,

the newer pans have a 660watt alternator and the older has 480watts, so there is plenty of power available for the stereo, usual headed grips draw about 20watts,
headlight 65w, i doubt that the injection stystem would draw more than 100w so you at least have a couple of hundred watts free
____________________
the humans are dead
I kick arse for the lord
Wiring Diagrams BIDNIP it bitches

[Pete.]

Just fit them and then take bets on how much weight he'll lose pushing the bus home with a flat battery
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[bugsy46]

hahahah! yeah might just do that!!!

I was thinking more of the battery capacity which If I remember is a 17 . Are we saying the car stereos draw amps to power it and then amps up to a maximum of what the speakers draw?
____________________
Laura - "And where did looks come into this and bugsy leave steven alone. You are not gods gift to women you may think you are but you're not."
Keith - "All the best"

[hmmmnz]

the car stereo will draw a certain amount of current (amps) depending on the volume, (it will use a certain amoumt just having it on as well)
but your battery shouldnt really come into the equation, unless the knobber decides to turn it on while the bike isn't running,
the alternator should produce enough power to have it running all the time. the battery is just there to smooth out the wave form from he alternator and to start the bike.
hope that helps
____________________
the humans are dead
I kick arse for the lord
Wiring Diagrams BIDNIP it bitches

[bugsy46]

Yes my concern was the battery capacity in terms of how hard the alternator would have to work. For example, on the new transalp, if you run the fog lights and heated grips at the same time it fries the alternator.
____________________
Laura - "And where did looks come into this and bugsy leave steven alone. You are not gods gift to women you may think you are but you're not."
Keith - "All the best"

[hmmmnz]

the transalp runs a 340watt alternator, not close to the pans capicity,
but any electric motor/alternator should be run at atleast 90% full load at all times, thats why bikes are fitted with regulators, to dump the excess electricity. i'd say if the transalps are frying alternators, then its more likely of a problem with the regulators in them. or they are just shit alternators

either way, as a spark i don't think you'll have a problem with fitting the stereo
____________________
the humans are dead
I kick arse for the lord
Wiring Diagrams BIDNIP it bitches

[bugsy46]

Do you think it will benefit from smaller speakers!? Ie 15W type
____________________
Laura - "And where did looks come into this and bugsy leave steven alone. You are not gods gift to women you may think you are but you're not."
Keith - "All the best"

[Ichy]

The rating on the speakers is supposed to be the maximum power they can accept not the amount of power they draw. 15w would theoretically be too low if the unit is rated at 50w per channel, its just a matter of how high the volume is set.

180w is fine, 100w or 50w would be fine. Doesn't matter on the speaker rating, the current drain will be the same.

[bugsy46]

Cool thanks guys for the info. So my understanding,

If the stereo is 4x50W, it will draw 200W from the bike, bottom line regardless of speakers being 1W or 180W?
____________________
Laura - "And where did looks come into this and bugsy leave steven alone. You are not gods gift to women you may think you are but you're not."
Keith - "All the best"

[Ichy]

Absolutely right on the speakers.

The 50w per channel is going to be way off the mark. I think Hmmmz suggested it was likely to be closer to 18w so 4x18= 72watts rms.

[instigator]