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 Nakamichi subwoofer review (underseat), Bought and tested

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SUSswellguy
post Nov 12 2020, 11:46 PM

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Johnkok must be proud
TSBalanced
post Nov 12 2020, 11:48 PM

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QUOTE(gogo2 @ Nov 12 2020, 11:29 PM)
How subwoofer make voice clearer? You still send same sound to front speaker. You change the Equalizer ?
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Previously my front speakers need to handle low end bass also. So my front speaker not getting enough power from my HU (no external amplifier). So sounds more teruk lo.
Now my active subwoofer has its own amplifier built in, so it handles all the low end. My front speaker only handles high and mid. So my HU still can supply enough power to the front speakers, but still not enough for full volume. Full volume will have some clipping sound, if your ears sensitive you can hear it. Clipping sound means not enough power supplied from HU to speakers. But now the quality for the loudness I required is more than enough for me, so I'm satisfied.
This is what I understand from the installer la. blush.gif
TSBalanced
post Nov 12 2020, 11:49 PM

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QUOTE(pretty23 @ Nov 12 2020, 11:30 PM)
TS enjoy how many hours in car per day ?
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sometimes no drive also.
But now when want rempit, I put eurobeat I can jizz already. DUP DUP DUP DUP!!
TSBalanced
post Nov 12 2020, 11:50 PM

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QUOTE(kkkw80 @ Nov 12 2020, 11:41 PM)
Yeah spent quite a fair bit, 6.2k 😅
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Spend so much already, upgrade la the stock HU. sure make difference tongue.gif

You buy and ask them install, or you bought all from them? Can breakdown the cost ah?
zerorating
post Nov 12 2020, 11:56 PM

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QUOTE(gogo2 @ Nov 12 2020, 11:29 PM)
How subwoofer make voice clearer? You still send same sound to front speaker. You change the Equalizer ?
*
the signal no longer send very low frequency stuff, so yeah clearer output for mid and high range, this doesn't matter much if you have good amp.
Bass unit no need to produce very low range frequency, so it could focus on producer higher bass frequency sound

kkkw80
post Nov 12 2020, 11:58 PM

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QUOTE(Balanced @ Nov 12 2020, 11:50 PM)
Spend so much already, upgrade la the stock HU. sure make difference  tongue.gif

You buy and ask them install, or you bought all from them? Can breakdown the cost ah?
*
Bought from a shop and they installed for me.

Don’t want to touch HU as my car is using canbus system controlling other functions for the car and car still under warranty.

Blam Signature component speaker 3k
Venom amp 1.5k
Venom underseat woofer 1.5k
Door sound proofing 200
SUSgogo2
post Nov 13 2020, 12:04 AM

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QUOTE(Balanced @ Nov 12 2020, 11:48 PM)
Previously my front speakers need to handle low end bass also. So my front speaker not getting enough power from my HU (no external amplifier). So sounds more teruk lo.
Now my active subwoofer has its own amplifier built in, so it handles all the low end. My front speaker only handles high and mid. So my HU still can supply enough power to the front speakers, but still not enough for full volume. Full volume will have some clipping sound, if your ears sensitive you can hear it. Clipping sound means not enough power supplied from HU to speakers. But now the quality for the loudness I required is more than enough for me, so I'm satisfied.
This is what I understand from the installer la.  blush.gif
*
How does front speaker suddenly handle high and mid?

I can understand it doesn’t need to drive the subwoofer. But at the same volume setting, isn’t the same power and music (high, mid, low) is sent to front speaker?

The only way you make it clearer is by adding filter to filter out low signal to front speaker.

QUOTE(zerorating @ Nov 12 2020, 11:56 PM)
the signal no longer send very low frequency stuff, so yeah clearer output for mid and high range, this doesn't matter much if you have good amp.
Bass unit no need to produce very low range frequency, so it could focus on producer higher bass frequency sound
*
Why suddenly install subwoofer, the HU automatically send only high and mid to front speaker? Is there a setting in the HU that does that?
TSBalanced
post Nov 13 2020, 12:13 AM

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QUOTE(gogo2 @ Nov 13 2020, 12:04 AM)
How does front speaker suddenly handle high and mid?

I can understand it doesn’t need to drive the subwoofer. But at the same volume setting, isn’t the same power and music (high, mid, low) is sent to front speaker?

The only way you make it clearer is by adding filter to filter out low signal to front speaker.
Why suddenly install subwoofer, the HU automatically send only high and mid to front speaker? Is there a setting in the HU that does that?
*
this part, that's where the tuning comes in and they work their magic ma. I not sure sure about this part tho.
But probably you are right, maybe they "filter" the low signal to front speakers. so front speakers only driving high and mids, so become clearer now
TSBalanced
post Nov 13 2020, 12:14 AM

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QUOTE(kkkw80 @ Nov 12 2020, 11:58 PM)
Bought from a shop and they installed for me.

Don’t want to touch HU as my car is using canbus system controlling other functions for the car and car still under warranty.

Blam Signature component speaker 3k
Venom amp 1.5k
Venom underseat woofer 1.5k
Door sound proofing 200
*
How much the shop charges you for all the cables, workmanship, installation and tuning?
zerorating
post Nov 13 2020, 12:25 AM

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QUOTE(gogo2 @ Nov 13 2020, 12:04 AM)
Why suddenly install subwoofer, the HU automatically send only high and mid to front speaker? Is there a setting in the HU that does that?
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for kenwood and jvc, you have this settings to filter out low range frequency, e.g if you choose 150hz, 0-150hz will not be send over front/rear speaker wire.
user posted image

here a better settings explanation.
http://manual.kenwood.com/ce/im362/Asia_Au...M_en_00-14.html

This post has been edited by zerorating: Nov 13 2020, 12:34 AM
TSBalanced
post Nov 13 2020, 12:37 AM

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QUOTE(zerorating @ Nov 13 2020, 12:25 AM)
for kenwood and jvc, you have this settings to filter out low range frequency, e.g if you choose 150hz, 0-150hz will not be send over front/rear speaker wire.
user posted image

here a better settings explanation.
http://manual.kenwood.com/ce/im362/Asia_Au...M_en_00-14.html
*
Oh, you are into tuning car audio too?
I don't know much of these things, so just pay people to do for me blush.gif blush.gif
djandrew
post Nov 13 2020, 12:37 AM

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underseat sub will never have the real thumbing bass of ported woofer box. owned a few under sub due to space issue.
under sub is good for those guitar basses higher low cut frequency, never can produce those real low's with "wooof woooof wooof pump"
under seat sub punch is quick and tight knocks but too boomy when comes to the music 2nd bass.
like a music example electro or trance when the 1st bass hit is a boom sound right? and the right after that 1st boom sound will comes the 2nd bass which is the something like a reflect back organ bass right?
that 2nd bass reflects always plays too high from an underseat sub caused very boomy..
something like a music bassline sounds like this "boookkk whunggg, bookkk whunngg, bookkk whungg"... that bookk is 1st bass, that whungg is 2nd type of bass, and it's that whungg whungg sound comes too high from underseat sub very irritating

This post has been edited by djandrew: Nov 13 2020, 12:43 AM
Zack Styler
post Nov 13 2020, 12:41 AM

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TS which shop you went for the installation?
SUSgogo2
post Nov 13 2020, 12:41 AM

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QUOTE(zerorating @ Nov 13 2020, 12:25 AM)
for kenwood and jvc, you have this settings to filter out low range frequency, e.g if you choose 150hz, 0-150hz will not be send over front/rear speaker wire.
user posted image

here a better settings explanation.
http://manual.kenwood.com/ce/im362/Asia_Au...M_en_00-14.html
*
Oh nice. Better than crappy original hU BY Perodua
TSBalanced
post Nov 13 2020, 12:51 AM

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QUOTE(djandrew @ Nov 13 2020, 12:37 AM)
underseat sub will never have the real thumbing bass of ported woofer box. owned a few under sub due to space issue.
under sub is good for those guitar basses higher low cut frequency, never can produce those real low's with "wooof woooof wooof pump"
under seat sub punch is quick and tight knocks but too boomy when comes to the music 2nd bass.
like a music example electro or trance when the 1st bass hit is a boom sound right? and the right after that 1st boom sound will comes the 2nd bass which is the something like a reflect back organ bass right?
that 2nd bass reflects always plays too high from an underseat sub caused very boomy..
*
I not so much into wooooof woooof woooof pump.
I am more into DUP DUP DUP pump. to me this is tight punch.

Or you have and example of a youtube video to demonstrate what you mean?
zerorating
post Nov 13 2020, 12:52 AM

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QUOTE(Balanced @ Nov 13 2020, 12:37 AM)
Oh, you are into tuning car audio too?
I don't know much of these things, so just pay people to do for me blush.gif  blush.gif
*
no la, i am someone who not prefer bassy setup or someone targeting more treble sound
all my car speaker handle all those frequency range, so there is tuning being made.
TSBalanced
post Nov 13 2020, 12:53 AM

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QUOTE(Zack Styler @ Nov 13 2020, 12:41 AM)
TS which shop you went for the installation?
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Min Zone at Bayan Baru.
You are into ice too? What are you planning to upgrade?
TSBalanced
post Nov 13 2020, 12:58 AM

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QUOTE(zerorating @ Nov 13 2020, 12:52 AM)
no la, i am someone who not prefer bassy setup or someone targeting more treble sound
all my car speaker handle all those frequency range, so there is tuning being made.
*
Oh you play SQ. I also like SQ la, like the voice clarity, but also prefer the DUP DUP DUP bass.
So imma kinda SQ and SPL a bit.
djandrew
post Nov 13 2020, 01:00 AM

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QUOTE(Balanced @ Nov 13 2020, 12:13 AM)
this part, that's where the tuning comes in and they work their magic ma. I not sure sure about this part tho.
But probably you are right, maybe they "filter" the low signal to front speakers. so front speakers only driving high and mids, so become clearer now
*
yeah a good HU can set all the high cut and low cut vs slope frequency pass to each channel of speakers/audio output, must also depends on your front speakers high cut frequency range start from which Hz, and that HU need set your front speakers so that don't sent the frequency that your front speakers can't handle, this will result your front speaker can focus on playing very loud mids and highs without getting distorted because the heavy bass beyond it cant handle is not sent to it.
too much heavy bass send to the front speakers that it can't handle beyond its range and if it plays too loud will caused it to distort sounds something like "ffrttt frrrtttt frrrttt" something like bocor angin lol

This post has been edited by djandrew: Nov 13 2020, 01:05 AM
djandrew
post Nov 13 2020, 01:04 AM

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QUOTE(Balanced @ Nov 13 2020, 12:51 AM)
I not so much into wooooof woooof woooof pump.
I am more into DUP DUP DUP pump. to me this is tight punch.

Or you have and example of a youtube video to demonstrate what you mean?
*
yes bro underseat sub is DUP DUP DUP type sound tight, ermm well yeah can say it's suitable for u tho since u said don't prefer those wooof wooof wooof pump

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