JVC Amp or Other Recommendations?

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Originally Posted by Honda

Helloooo everyone! I'm so happy at the moment. 5 days of hard work 7am to 5pm all day everyday to install this system. Just came from a pumping cruise (oh yeaaah)

I want to say a very special thanks to tbM for putting up with me and all the work he had done in order to help me. I can't thank you enough.

The source of the sound was comming from the left speaker. Probably one of the wires got caught on the speaker terminal or door (even though I duct tapped it) causing that WEIRD DDDDEERRRZZZZZWOOFDERWOOF sound. It seemed like the small shake from the engine running caused movement which made the sound enhanced.

Turning the amp was quite interesting. It was distorting at 1/4 way on the gain at 80%ish volume (with a very bass doof doof song that I had)

AND OH. MY .GOD. the quality is amazing, clear, and just wow! I think the speakers needs more pumping to be loosen up to it's new home :D Only negative thing I can say is that the treble is abit harsh at times but I don't mind it too much. My ears can adjust :)

I disconnected the back speakers because they were TOO loud compared to the front (because the gain for the front is set to not distort at ~80% level). I couldn't find rear adjustment on the HU.

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No worries, happy to help, good to see people diy'ing. Glad you got it all working :) now for the fun part that makes the work worthwhile, listening to beats knowing that you did the work yourself, Wynnyng.

whats ur headunit model number? might be able to tell you how to fix the treble.

I removed my back speakers, they are useless imo when you have a decently amp'ed front speakers

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Originally Posted by Drifter995

you can fade the sound to the front... pretty easy to do.
but still, glad you're enjoying it. I can't wait to get my fronts done, but I need a new sub first... blew my type S today apparently >.>

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Thats no good mun, how did you manage that?

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Originally Posted by TbM

No worries, happy to help, good to see people diy'ing. Glad you got it all working :) now for the fun part that makes the work worthwhile, listening to beats knowing that you did the work yourself, Wynnyng.

whats ur headunit model number? might be able to tell you how to fix the treble.

I removed my back speakers, they are useless imo when you have a decently amp'ed front speakers

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Was going to come back and mention back speakers aren't really needed, haha. beat me to it ;D

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Originally Posted by TbM

Thats no good mun, how did you manage that?

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Had my type s on 1ohm, and pumping at a decent level... on non-bassy songs :> then put on bassy songs. Didn't like it very much xD Will probably use my sony xplod for now till I have money for another sub

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Originally Posted by TbM

No worries, happy to help, good to see people diy'ing. Glad you got it all working :) now for the fun part that makes the work worthwhile, listening to beats knowing that you did the work yourself, Wynnyng.

whats ur headunit model number? might be able to tell you how to fix the treble.

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My head unit is: Kenwood KDC-U449 :) Yeah I think I'll leave the back disconnected (but it will be good if they can be run on very very low treble and just have bass, if that's possible)

Look what I found! Haha

http://imageshack.us/a/img507/3835/t...2pv1qb9vva.gif

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Originally Posted by Drifter995

Had my type s on 1ohm, and pumping at a decent level... on non-bassy songs :> then put on bassy songs. Didn't like it very much xD Will probably use my sony xplod for now till I have money for another sub

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Balls, they dvc subs arnt they? could try running it on one vc if you are lucky enough to have only damaged one of them.

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Originally Posted by Honda

My head unit is: Kenwood KDC-U449 :) Yeah I think I'll leave the back disconnected (but it will be good if they can be run on very very low treble and just have bass, if that's possible)

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http://manual.kenwood.com/files/4edc6b41646d2.pdf

page 13/14 you have tre adjustment(treble), change the centre frequency to the to the frequency that your having trouble with and then turn the tre level down. if you dont know what freq is the problem put a track on that shows the harshness then play around with the centre freq and tre level untill you find a setting you like.

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Originally Posted by Honda

Look what I found! Haha

http://imageshack.us/a/img507/3835/t...2pv1qb9vva.gif

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This is what i feel like after i listen to my focals


http://weknowmemes.com/wp-content/up...-story-new.png

Some more reviews on the Morel

I've been playing it for 2hrs and I noticed a few things that is very different from my stock speakers (or it might be because the back is disconnected)

1. With the stock speakers, everything sounds good with and without the window open. But for the Morels, the sound depreciate really fast that it doesn't sound good anymore (unless you roll up the window back)
2. The morels at around 20 volume (out of 30 at distort). Plays VERY clear music that is just WOW but the bass doesn't kick in until around 27 of the volume (at nearly distort level)
3. Playing it at 25 makes my ears fuzzy but they weren't loud!! compared to what I was pumping to the stock speakers. (stocks were louder but my ears didn't become fuzzy)
I think this is due to the Morels playing some low frequencies that the stocks wasn't able to produce? Or maybe the speakers are producing sounds that the human ear can't hear?

So to get my "ideal" sound I have to roll the windows up, set it to around 27 out of 30(distort level) and fuzzy sound when I'm back home (you know what the sound is right? when you listen to too loud music and it makes your ears fuzzy? lol)

But with my stock speakers roll up or roll in, it doesn't matter. Still sounds ok either way etc without fuzz

Its hard to say without hearing it myself but im guessing that fuzz your talking about is harsh treble, try doing my above post and see if it helps.

How are the speakers installed, did you just mount them to the door trim or did you mount it to the door with an mdf spacer and seal the service holes?

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Originally Posted by TbM

Its hard to say without hearing it myself but im guessing that fuzz your talking about is harsh treble, try doing my above post and see if it helps.

How are the speakers installed, did you just mount them to the door trim or did you mount it to the door with an mdf spacer and seal the service holes?

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Its like you go drive on a open road for a long time and your ears jam. That's the "fuzz" or whatever you call it, I don't know how to describe it. So your suggesting that it might be caused by the harsh treble?
Yeah Ive played around with the treble, it helps abit but I think it sounds better with the treble abit up on +1 rather than in the - levels. But I haven't fully played around with the frequency yet- it kinda sounds the same to me with volts up and down.

Should I touch the mid and mid bass?

I didn't notice anything when I adjusted the fade settings.

However, I noticed the sound is best when your head is on the handbrake so I +2 on the balance and it's somewhat better.

My speakers are currently mounted on the door trim due to time constraints.

My next project will definitely be mounting it on the door + mdf spacer + dynamat. Just don't have time right now~ :(

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Originally Posted by Honda

Its like you go drive on a open road for a long time and your ears jam. That's the "fuzz" or whatever you call it, I don't know how to describe it. So your suggesting that it might be caused by the harsh treble?

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my ears dont jam when i drive for a long time. when my ears fatigue its usualy from excess treble.

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Yeah Ive played around with the treble, it helps abit but I think it sounds better with the treble abit up on +1 rather than in the - levels. But I haven't fully played around with the frequency yet- it kinda sounds the same to me with volts up and down.

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You said the treble was harsh, if you would like to get rid of some of that try what i described.

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Should I touch the mid and mid bass?

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If you like but installing the driver properly will make a bigger difference than tuning.

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I didn't notice anything when I adjusted the fade settings.

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If you fade to F (front) it will reduce the signal sent to the rear speakers, so would make them quieter if they were connected.

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My speakers are currently mounted on the door trim due to time constraints.

My next project will definitely be mounting it on the door + mdf spacer + dynamat. Just don't have time right now~ :(

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mounting them properly and sealing service holes will make a huge difference.

What does mid adjustment do? Is it the instruments? or just the sound in general?

The sound is coming back again, there is some sort of interference with the left speaker :(

Not sure what the cause is but I do have a few theories:
1. The four wires need to be solder onto the speaker. Because the factory harness did connect two onto one speaker terminal of either (+) or (-)
2. The speaker terminal may be touching the metal door but I don't think so.

Is there a way to check if the left speaker is generating unwanted signals? Testing the wire with a MM or something? If so, how would I do this?

The sound is very low frequency and it's hard to notice but after a drive- my left ear is jammed while right is fine.
It was much better than before but the sound generated from the speaker comes and goes? remount always does the trick (did it twice).

I only realised today that the sound was coming because left ear is jammed while right is ok, so then I touched the left speaker and noticed it was vibrating which means the sounds are being created but hardly noticeable and it definitely does do some damage to the ear.

Edit: Tried to explain it better

I don't know what you mean by jamming either :/ sorry...
It is curious though, if it is low bass. but yeah, getting them installed/ installing them properly will give you more bass, and make them sound a lot nicer.

As for my S, I don't think that'd work... she's stuck hard. s'all good. Lasted two completely different systems. it served me well :D

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Originally Posted by Drifter995

I don't know what you mean by jamming either :/ sorry...

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Hmm.. It's the feeling you get in your ears when you know that you've been pumping your system too loud

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Originally Posted by Honda

Not sure what the cause is but I do have a few theories:
1. The four wires need to be solder onto the speaker. Because the factory harness did connect two onto one speaker terminal of either (+) or (-)

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doubt it, you only need one set of wires to run a speaker

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2. The speaker terminal may be touching the metal door but I don't think so.

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this is probably your problem

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Is there a way to check if the left speaker is generating unwanted signals? Testing the wire with a MM or something? If so, how would I do this?

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disconnect speaker cable from amp, set multi meter on lowest resistance setting, put one probe on your ground one on a speaker wire, if you get a reading that's not infinite your gonna have a bad time.

how are the connections made to the speaker? ie did you solder the joins between factory harnes and your speaker wire and properly terminate the end of the wire with spade connectors.

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Originally Posted by TbM

disconnect speaker cable from amp, set multi meter on lowest resistance setting, put one probe on your ground one on a speaker wire, if you get a reading that's not infinite your gonna have a bad time.

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You must spread some Reputation around before giving it to TbM again. Dammit TbM. Am I giving you all my rep? I can't rep you anymore :<
Also, do you mean you hear a high pitched whine? Like after a concert? that's all I can think of

^^ Lol you have to spread your rep around to 15 people before you can rep the same person again.

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Originally Posted by TbM

^^ Lol you have to spread your rep around to 15 people before you can rep the same person again.

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that's aids.... that won't happen D:

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Originally Posted by TbM

disconnect speaker cable from amp, set multi meter on lowest resistance setting, put one probe on your ground one on a speaker wire, if you get a reading that's not infinite your gonna have a bad time.

how are the connections made to the speaker? ie did you solder the joins between factory harnes and your speaker wire and properly terminate the end of the wire with spade connectors.

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When trying to get the resistance should the headunit/engine be on? The sound only occurs when the engine is running- and do I have to disconnect the ground cable from the amp?

I've connected the speakers by:
- cutting the harness out. Leaving 4 stripped wires.
- 2 of the wires were DIRECTLY soldered onto the speaker
- The other two remaining ends has been duct tapped
- Today, I've just overloaded the terminals with duct tape. I even went to the extreme of duct tapping the door metal just incase there is a loose end. I think it made it somewhat better :) Need to play it more to notice-

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Originally Posted by Drifter995

You must spread some Reputation around before giving it to TbM again. Dammit TbM. Am I giving you all my rep? I can't rep you anymore :<
Also, do you mean you hear a high pitched whine? Like after a concert? that's all I can think of

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LOL I always get the same message! TbM deserves to be repped more!!

Yeah I guess you could describe it like that. But you will certainly have that "feeling" in your ear after a concert. But this issue here is that my system IS NOT that loud and my ear has that same feeling. SO the sound is kinda invisible if that makes any sense.

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Originally Posted by Drifter995

that's aids.... that won't happen D:

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Lol, yeh its a bit annoying

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Originally Posted by Honda

When trying to get the resistance should the headunit/engine be on?

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No, your checking if there is continuity between the speaker cable and chassis

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Originally Posted by Honda

The sound only occurs when the engine is running- and do I have to disconnect the ground cable from the amp?

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no, just disconnect the speaker cables from the amp and test them.

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Originally Posted by Honda

I've connected the speakers by:
- cutting the harness out. Leaving 4 stripped wires.
- 2 of the wires were DIRECTLY soldered onto the speaker
- The other two remaining ends has been duct tapped
- Today, I've just overloaded the terminals with duct tape. I even went to the extreme of duct tapping the door metal just incase there is a loose end. I think it made it somewhat better :) Need to play it more to notice-

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Ive never herd of using duct tape for wires, i use electrical tape.

Okay I've did a continuity test between the speaker and chassis.

Results:
- On default the reading on 200 ohm (lowest level) is 1
- When black is on chassis and red is on each speaker cable the reading does not change. Still at 1 (This reading is the same with + and - of BOTH speakers)

Is this ok?

Hmm I think I'm using the wrong terms for duct tape/electrical tape. Yeah I think I was using electrical tape (its black and smooth)

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Originally Posted by Honda

Okay I've did a continuity test between the speaker and chassis.

Results:
- On default the reading on 200 ohm (lowest level) is 1
- When black is on chassis and red is on each speaker cable the reading does not change. Still at 1 (This reading is the same with + and - of BOTH speakers)

Is this ok?

Hmm I think I'm using the wrong terms for duct tape/electrical tape. Yeah I think I was using electrical tape (its black and smooth)

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by 1 do you mean infinite? if its like this then its infinite and your all good.
http://www.outilsobdfacile.com/softw...r-original.jpg

Yep! exactly like that.

This is strange, I'm almost certain that the speakers are producing some sort of sound that is irritating my ear. My left ear only car hear about 70% of sounds now, I hope it gets better tomorrow...

is the interference problem fixed now you have stopped your terminals grounding out?

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Originally Posted by TbM

is the interference problem fixed now you have stopped your terminals grounding out?

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I think it has improved. I haven't tested it yet as my ear is still healing :( don't want to listen to any more of the system till my hearing goes back to normal again