audio setup?

Body, Paint, Interior and Trim questions and answers

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rodent
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Postby rodent » Thu Oct 12, 2006 1:35 am

Hey here's a question:
For all youse NA drivers out there with splits installed, where did you put the tweeters?

jonno.
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Brad
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Postby Brad » Thu Oct 12, 2006 9:48 am

Mine have a base that the tweeter clips to, that base is zip tied through holes on it's inside to the small vents in the corners of the dash.
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kula
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Re:

Postby kula » Thu Oct 12, 2006 2:26 pm

Brad wrote:Kula: A small amp will weigh next to nothing and give WAY better sound. If you are spending good $ on speakers, it's pointless running them off the headunit.


about the lightest ok amps id run are alpines new PDX range, which are about 2kgs.. 2kgs is still alot for me.

not to mention the massive amount of wiring needed.

HUs have 4x18 or so RMS, for powering a set of efficient splits, that can be plenty.

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Brad
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Re:

Postby Brad » Thu Oct 12, 2006 3:13 pm

kula wrote:
Brad wrote:Kula: A small amp will weigh next to nothing and give WAY better sound. If you are spending good $ on speakers, it's pointless running them off the headunit.


about the lightest ok amps id run are alpines new PDX range, which are about 2kgs.. 2kgs is still alot for me.

not to mention the massive amount of wiring needed.

HUs have 4x18 or so RMS, for powering a set of efficient splits, that can be plenty.


18w RMS from a headunit is not 18w RMS from an amp.

True RMS must be qualified with %THD (Total Harmonic Distortion) and a frequency range the power can be supplied over. HU's will look something like 18w RMS 1%THD @ 1,000hz, while an amp will be more like 18w RMS 0.01%THD @ 20-20,000hz. BIG difference

I had my JL Audio splits hooked up to my headunit for a while which is rated at 16wRMS, then went to 2 channels of my Pioneer 4x30w amp. Sure, almost double the power, but the quality at any lever was far far superior then the headunit, no question.

Wiring would be all of 1kg using 8GA for power and ground and lightweight shielded RCA's.

Without knowing what 'mass' you have, most people would be able to drop a few kg's pretty easy to make up for any extra weight in the car, and a tank a fuel weighs in at around 35kg.
1994 MX5 Clubman - RB CAI & ARB - BD Rollbar - X-Force headers & Zorst - Tein SS
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kula
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Postby kula » Thu Oct 12, 2006 3:23 pm

sure, i think the 4x18 power will be enough to suprise a few people.


my car has:
no carpet
no sound deadening
no air con
no ps
no softtop
no tow hooks
lightweight seat

and its still too heavy.

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RaYmO
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Re:

Postby RaYmO » Thu Oct 12, 2006 3:28 pm

kula wrote:sure, i think the 4x18 power will be enough to suprise a few people.


my car has:
no carpet
no sound deadening
no air con
no ps
no softtop
no tow hooks
lightweight seat

and its still too heavy.


Get inspiration from lightweightmiata.com and go on a diet :D
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Okibi
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Re:

Postby Okibi » Thu Oct 12, 2006 3:29 pm

kula wrote:..and its still too heavy.


I'll look after all your camera gear then :mrgreen:
If you had access to a car like this, would you take it back right away? Neither would I.

kula
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Postby kula » Thu Oct 12, 2006 3:31 pm

yeah 10kgs of my excess fat is in the plans:P

and when/if the new engine comes, thats when we get serious.

mio
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Postby mio » Thu Oct 12, 2006 4:13 pm

if you can remove aircon/sound deadening, don't you believe a sound system is a compromise between luxury and performance? maybe if one is to go so far in weight reduction, they can live without a sound system? :?:
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Brad
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Re:

Postby Brad » Thu Oct 12, 2006 4:16 pm

mio wrote:if you can remove aircon/sound deadening, don't you believe a sound system is a compromise between luxury and performance? maybe if one is to go so far in weight reduction, they can live without a sound system? :?:


Good point mio...kula should be listening to the engine note, not doof doof :mrgreen:
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kula
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Postby kula » Thu Oct 12, 2006 4:22 pm

yeah true, but i drive a fair bit, and i can live without most of those things, but sound is one that i cant. yet.

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meanmx
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Postby meanmx » Thu Oct 12, 2006 7:06 pm

I could be wrong but I don't think Kula is trying to build an SPL car. If he just wants the basics then a HU and good 6 1/2 splits will be great. They will be underpowered but it is better than what pretty much any car coming from the factory will have and for most people that's enough.

Ben

kula
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Postby kula » Thu Oct 12, 2006 7:38 pm

true

SQ>SPL :)

4x18 is more than can be enough for good efficient speakers.


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