Fairly new to the forum and reasonably new to car audio > have been researching my build over the past few months so this site has been great. :)
I will attempt to post up a few pics and information on the build (not many pics yet) - and ask a question relating to a problem I have with Engine buzz/noise. I also suffered this problem with my first audio build (suzuki baleno hatch) and was 95% solved with RCA filter so this might be solution but comments welcome!
So now onto my 2nd audio build and current car - it is a 2008 Holden SSV Ute fitted with their 'Premium' Stereo package (which seems like a joke to me....) I guess the premium part is in the 6 CD stacker since the speakers are paper coned splits.
Deciding I want to enter some car + sound competitions I thought I'd look at the higher end of town and after much negotiation/deliberation I settled on:
*Polk MM6501 Splits
*Option Audio Amp running 3 channel mode 160WRMS to splits and 350WRMS to subwoofer.
*Retaining Stock head unit - for now. I have had No Limit electronics in VIC modify the OEM unit to provide me with 2 sets of RCA outputs and by passing the OEM amplifier within the stereo itself.
This was kept to retain the HVAC functions/screen it seems a common modification and POTENTIALLY an area whereby the engine noise is being introduced but can't be sure as yet, others with the same mod to OEM head deck do NOT suffer this problem so could be elsewhere......
I was hoping to build somewhat more SQ than anything else so OEM H/D might have to go but being new and not knowing all the good brands and models (speakers) I'm not sure I've bought 'the best' but am very happy thus far (all of about 3 mins of listening so far and some tuning/tweaking yet to be done). Being a musician I listen to a WIDE variety of music so ask alot of the systems I purchase.
Due to the wide taste in music I guess component choice will always be a compromise especially when working with the limited room of the ute.
On that note, the Pre VE models had only 90litres behind the seats for storage/stereo gear so having 245litres in the new model range is somewhat handy!
I did not want to compromise on getting a 'shallow' sub/box which the salesman initially tried to sell me on 'because you have a ute'.....however I am somewhat worried that a single 12" in the ute cabin will be too much BUT after alot of reading figured the Polk MM1240 in a sealed custom box was best choice.
Time will tell as I am yet to finish the sub box after having a few install issues over the weekend took up all my time!
The build was overall the easiest I've been involved with. Having seen mates modify their stereos and assisting myself, doing 2 of my own jobs was not always straight forward > check the pics though and you can see the Polk MM6501s fit PERFECTLY in place of the stock units. NO modifications where really required....
I realise better results may be achieved with more work and I do have some sound deadening products I was going to use but again the stock deadening is actually quite good - I guess because it's a ute and suffers from cabin noise they have done a reasonable job of sound deadening with a panel in the door and thick foam inserts on the door trims itself. As it was going to be ALOT faster to install system we decided to run without it for time being and once it's all finished we will re-assess. We placed the tweeters in the same place as OEM so we did have to cut a hole for each one in the trim of the
car but comes up ready tidy and looks factory. I will have to move that rego label to the side window when I get the next one....
After finishing the build we had a VERY poor signal, no volume all crackles > terrible sound and very disapointed. Something was not right!
We ran iphone directly into amp via 3.5mm>RCA and problem persists........connect OEM speaker to out put of amp (thus bypassing speaker install/wiring) and problem still there!
Suspecting a DOA amp we almost finished testing....tried one more thing, move the earth......where it was placed was on the body of a car and it looked to be THE ideal spot > however ran it to the battery instead and BAM perfect crystal clear sound!!!! DOH well at least it's working and I didn't have to send the head deck away or remove all the amp etc!!! PHEEEEEEEEEW
So now I am close to finishing and will take some more pics now it's going to be tidied up>install sub box. I will see how it goes, if it's total overkill or unbalanced I'm thinking maybe smaller subs but one behind EACH seat instead of just the one I've got going in behind drivers. Interestingly to note, when I ordered the sub friom WOW they mentioned they had the DVC model for $30 cheaper than the SVC model($229 VS $199)!!!! Not knowing alot about this it seems it would only really benefit me if i was running multiple amps/subs and the shop did not have them in stock so I ran with the SVC unit which they gave to me for same price as DVC
Hmmm what else... .....that's probably it for now but should have sub box in this weekend so more pics will come!
Oh that's right - I read in the speaker manual that:
Can't wait to get it all tuned and ready for a sound comp!