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 Class D amp, Is it good to drive sub?

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TSdaniel31
post Apr 1 2006, 10:30 PM, updated 20y ago

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Guys, l got a few question here.

Actually...l dont know what is the diffrent between class D and mono amp?

Today, l just bought a Blaupunkt Velocity Class D 2/1 channel amp to drive my sub. Is that a good choice? sweat.gif Or should l get monoblock amp instead? doh.gif
craziechild
post Apr 2 2006, 12:59 AM

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Class D and monoblock are the same thing... they use the same circuit design... monoblock are mainly used to power a sub... normally has only 1ch output(except for DMA)... They are designed to power a sub with the minimal power drag from the battery compared to a bridged class A/B amp...

since you hav bought the Blaupunkt amp then i would suggest you to use it first... flick around with it... and see if it gets overheat or not... see whether it fulfills your desire or not...

normally a monoblock dun come cheap... so buy wisely... buy it when you really need it...

cheers...
soulfly
post Apr 2 2006, 10:26 AM

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Monoblock never come cheap because they're rated for high power output usage laugh.gif

Anyway craziechild... I saw your sig. I would say..... ditch that pre-amp. They're so outdated with the HUs available nowadays tongue.gif
craziechild
post Apr 2 2006, 11:15 AM

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well i am planiing to run active... so the pre-amp is not parametric... but active e xover... hehehe....
driftmeister
post Apr 2 2006, 08:54 PM

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QUOTE(craziechild @ Apr 2 2006, 12:59 AM)
Class D and monoblock are the same thing... they use the same circuit design... monoblock are mainly used to power a sub... normally has only 1ch output(except for DMA)... They are designed to power a sub with the minimal power drag from the battery compared to a bridged class A/B amp...

since you hav bought the Blaupunkt amp then i would suggest you to use it first... flick around with it... and see if it gets overheat or not... see whether it fulfills your desire or not...

normally a monoblock dun come cheap... so buy wisely... buy it when you really need it...

cheers...
*
Class D =/= Monoblock
pls make ur facts clear

anyways, class is the definition/description of its power efficiency
(e.g. class A tend to have a lot of power loss bcos of most of the power will be dispose as heat)
class D amp is popular for driving subs bcos of its efficiency
wit the minimal power loss thus giving the subs for full feed

i guess if u're not going for extreme SPL listening pressure
the amp would be more than enuf to drive ur sub
cheers
TSdaniel31
post Apr 2 2006, 09:32 PM

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Erm....guys...is it SQ stand for Sound Quality? Then how about SPL? (sorry about this as l,m not a hardcore ICE player)

Actually, l,m using the amp to power a 12inch sub for my new Myvi as the original sound system is totally "bassless".

Now...l can feel the bass already but again....lack of treble now. terrible....lol tongue.gif
Lemon
post Apr 2 2006, 09:53 PM

donno lol..
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QUOTE(daniel31 @ Apr 2 2006, 09:32 PM)
Erm....guys...is it SQ stand for Sound Quality? Then how about SPL? (sorry about this as l,m not a hardcore ICE player)

Actually, l,m using the amp to power a 12inch sub for my new Myvi as the original sound system is totally "bassless".

Now...l can feel the bass already but again....lack of treble now. terrible....lol tongue.gif
*
SPL means, Sound Pressure Level. As for me,SPL means (Sound Pleasure Level rclxm9.gif )
Lemon
post Apr 2 2006, 09:59 PM

donno lol..
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QUOTE(daniel31 @ Apr 1 2006, 10:30 PM)
Guys, l got a few question here.

Actually...l dont know what is the diffrent between class D and mono amp?

Today, l just bought a Blaupunkt Velocity Class D 2/1 channel amp to drive my sub. Is that a good choice?  sweat.gif Or should l get monoblock amp instead?  doh.gif
*
I got a Concept Monoblock (suitable for SQ) for sale, you want ah? USA made, used few months only, and very seldom use. I bought it RM1600, want to sell it cheap cheap only... need money to buy processor thumbup.gif http://concept-intl.net/proddetail.asp?ID=...tLine=Amplifier
kelvin_hata
post Apr 3 2006, 10:07 AM

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craziechild:-

"You may spend the money in the whole world into you ICE but still sound like stock standard if you don't tune it properly..."

+++ u wil get worse sound if u add cheap cheap "Pre Amp" even u r the super extream good tunner.
craziechild
post Apr 3 2006, 05:31 PM

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well... its not those parametric pre-amp.... i am planning to do an active system... whining sound will not be a problem if your installation skill is good enough and if you do a good planning of where the wires will go...

cheers...
soulfly
post Apr 3 2006, 08:33 PM

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electronic crossover is not the same thing as pre-amp wink.gif

btw... craziechild... did u check the Kicker subs at Star Accessories? just want to make sure that they're original goods. the price looked quite reasonable.

This post has been edited by soulfly: Apr 3 2006, 08:34 PM
driftmeister
post Apr 3 2006, 10:01 PM

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all device that is installed before an amp consider a pre-amp wink.gif except sound isulator of cos laugh.gif

This post has been edited by driftmeister: Apr 3 2006, 10:02 PM
craziechild
post Apr 3 2006, 10:26 PM

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hmm kicker at star car ah? hmm... i think those are china made ones la...thats why the price are quiet low... i would recommend tun sing car accessories near cherrie berries there...
TSdaniel31
post Apr 3 2006, 11:16 PM

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QUOTE(craziechild @ Apr 3 2006, 10:26 PM)
hmm kicker at star car ah? hmm... i think those are china made ones la...thats why the price are quiet low... i would recommend tun sing car accessories near cherrie berries there...
*
How much is the price? biggrin.gif
craziechild
post Apr 4 2006, 01:22 PM

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RM300 to 400 one time i see... but not sure what model la... cuz i am not a kicker fans...

cheerss...
Jwang
post Apr 6 2006, 01:22 PM

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i ve a monoblock.......
How to make amp reach 350W .. do i need a 2ohms woofer blink.gif
At the moment me using single 12" woofer.

200W x 1 RMS [4Ohms @ 14.4V (1% THD)]
350W x 1 RMS [2Ohms @ 14.4V (1% THD)]

How does a double coil woofer sounds like.........? more suitable for sealed or vented ?

This post has been edited by Jwang: Apr 6 2006, 01:24 PM
craziechild
post Apr 6 2006, 01:33 PM

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Both DVC and SVC sub are the same... jus tht DVC sub will provide you with some wiring option to run 2 ohm from the amp...
Jwang
post Apr 6 2006, 07:49 PM

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QUOTE(craziechild @ Apr 6 2006, 01:33 PM)
Both DVC and SVC sub are the same... jus tht DVC sub will provide you with some wiring option to run 2 ohm from the amp...
*
Can u explain wut is DVC & SVC ?......... me kind of noob here rclxub.gif

How to fully utilise my Amp, any set-up ? plz list any possible set-up. icon_question.gif

If it can reach 350W , i'm sure i dun wun to waste wut i pay for blink.gif
howiechoo
post Apr 6 2006, 10:11 PM

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DVC are more powerful in the bass...but not as loud as 2 SVC sub..DVC sub actually provide wiring option and lower freq compare to SVC...

DVC is just 2 SVC built together...save space, more powerful, more wiring option...

BTW, mono /= Class D..Monoblock amp got class A, class AB, Class D and also Class F if not mistaken...
driftmeister
post Apr 6 2006, 10:27 PM

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actually the loudness/freq of DVC and SVC is depend on the sub itself
DVC is juz taking the advantage of squeezing in 1 more voice coil
thus accepting more power to reach it's peak

DVC u can choose to run it parellel or series
means 8ohm or 2ohm
i find that 8ohm tends to give me more accurate bass than 2ohm
2ohm sounds louder .. and the bass is not as accurate
howiechoo
post Apr 7 2006, 10:19 AM

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for sure 8 ohm is more accurate...everything got it's limit...with 2 ohm, the amp actually output higher power than 8 ohm. that's y it's not so accurate....and the sub tend to accept more power...
exceeding power the sub cant handle = distortion
craziechild
post Apr 7 2006, 01:59 PM

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thanks for correcting me sifoos... hehehe...
xswoosh
post Apr 9 2006, 01:15 PM

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does this 8ohm and 2ohm works for components as well??
I saw there are tweeters that is 8ohm, is this the same things as you sifus are saying??
Thanks!!
driftmeister
post Apr 9 2006, 02:56 PM

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normal speakers which is more than 4ohm is normally for home use
but if u got a high power amplifier
using it in car is possible

2ohm is normally found on sub woofer which is DVC
howiechoo
post Apr 9 2006, 06:42 PM

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actually mid bass and tweeter are built at 4ohm and 8ohm in home theatre also...it's the matching of connection type...

for a car tweeter, i actually say 8ohm b4...ya, it's a branded tweeter specially for car..the reason it make it 8 ohm should be also matching the connection also..just wat i thinking...

erm, if ur tweet are 8 ohm, u can actually maximise ur amp for the power of the tweeter...connect it parellel with ur mid...then it will become 4ohm..but unfortunately it will not have any active setupp anymore...
mADmAN
post Apr 10 2006, 03:00 PM

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guys....with the stup in muh sig.....wat monoblock would u recommend for a budget of say 1k?

my jbl monoblock died on me...send to shop to repair and they say cannot fix
toolan..

EDIT: wanna ask how good are blaupunkt amps?? can recommend any blaupunkt monoblocks? i ask coz i might be able to get cheap

same question goes for kenwood amps as well

This post has been edited by mADmAN: Apr 10 2006, 03:23 PM
craziechild
post Apr 10 2006, 03:36 PM

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mayb try prokick?
mADmAN
post Apr 11 2006, 02:33 PM

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yep...was actually considering the prokick monoblock to pair with my prokick 4 channel....

im asking coz i wanna know if there are other better alternatives out there for an SPL setup with my budget of 1k for the amp only...

i wan sumthin that can really take alot of blasting...

i place my amp under the fron passenger seat of my kelisa by the way...

This post has been edited by mADmAN: Apr 11 2006, 02:35 PM
kelvin_hata
post Apr 11 2006, 07:38 PM

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QUOTE(mADmAN @ Apr 11 2006, 02:33 PM)
yep...was actually considering the prokick monoblock to pair with my prokick 4 channel....

im asking coz i wanna know if there are other better alternatives out there for an SPL setup with my budget of 1k for the amp only...

i wan sumthin that can really take alot of blasting...

i place my amp under the fron passenger seat of my kelisa by the way...
*
i tested prokick monoblock wit kicker 12'inch woofer... not bad at all. the woofer bass sound is nice icon_rolleyes.gif

This post has been edited by kelvin_hata: Apr 11 2006, 07:39 PM
driftmeister
post Apr 11 2006, 10:28 PM

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orion xtr900.2 ?

2ch class ab
mADmAN
post Apr 21 2006, 10:25 AM

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guys...need more recommendations for a monoblock....

probably gonna go looking for it tomorrow...

would like to knoe brand+model with price and also where to get in PJ.

thanks in advance
howiechoo
post Apr 21 2006, 12:24 PM

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monoblock or not are depend on how many sub u gonna use and wat sub u wan to use with..there's no point if u wan to use a svc 4ohm sub with a monoblock that can produce juice at 250rms @ 4ohm....it's just a waste....the great thing about mono to me is the capacity of going to 1 ohm...if a mono cant go to 1ohm, i will definitely wont get it...i want to maximise the usage of the amp...

for ur case, how many sub and wat sub u gonna use with the mono? if u just using 4ohm wiring, then i suggest u get a 2ch indeed...mono are overkill..wasted the money and the mono....
mADmAN
post Apr 21 2006, 12:44 PM

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good point....my ICE setup is in my sig...1x12" Alphasonik woofer

i think my woofer is wired for 4ohm....not really sure tongue.gif

so....say my woofer is wired for 4ohm...what amp u recommend for 1k?

and say my woofer is wired for mono....wat amp u recommend?


howiechoo
post Apr 21 2006, 04:07 PM

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is it dvc 2/4ohm?
mADmAN
post Apr 21 2006, 05:24 PM

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QUOTE(howiechoo @ Apr 21 2006, 04:07 PM)
is it dvc 2/4ohm?
*
thats the thing... i have NO idea doh.gif doh.gif blush.gif blush.gif

when i bought the woofer i was told its a DVC sub. and he said hes gonna wire it for 4ohm...i think la.. rclxub.gif

cant remember la.... which is why i asked to recommend amps for diff configs... n of course an amp that suits diff configs....


howiechoo
post Apr 21 2006, 06:54 PM

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wire to 4 ohm mean it's a dvc 2 la...just use a lower power mono like jbl600.1 is enuff.and wired the sub to 1 ohm..no need too expensive 1 if u dun plan to upgrade to 2 sub..actually if ur sub is 400rms, u can only maximise it around3++ only..u will never reach 400..it will distort..and if ur enclosure design are proper, ur sub will perform best at 3++ rms..notreally 400..400 is the best it can take....
mADmAN
post Apr 21 2006, 09:06 PM

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another bp600.1? hhhmmmm....that COULD be an option....

aiyah...looks like i may have an extra week to look.....i have to work tomorrow cry.gif

thanks howiechoo for the tips.... but any other amps to recommend?
howiechoo
post Apr 21 2006, 11:24 PM

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i got 2ch prokick class ab for sell....400rms total power....good ler...hehe
tested already even kicker cvr400rms cant tahan......lolz..the only underrate generation of prokick....newer product all overrate already...

actually the jbl600.1 are refurbish in our country..u will never get a new 1...btw, i m just giving an example of the mono amp...this 600.1 got a high risk cos 4/5 out of 10 are return for warranty after 1/2 month regarding to my fren who sell this..hahaha
mADmAN
post Apr 22 2006, 12:37 AM

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cheh....looks like im 1 of thouse 4/5 out of 10... sigh...

really gonna need to bounce around town to look for a good amp
mADmAN
post Apr 24 2006, 10:31 AM

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anyone knows of any good blaupunkt class d monoblocks? wanna try n check those out too.....

are blaupunkt monoblocks good??
mADmAN
post Apr 25 2006, 02:22 PM

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was browsing thru the jbl website and i found these pix.....

this is how my sub is wired
user posted image

meaning its running on 4ohm svc right?

but then.... my sub can also be wired like this
user posted image

this means i have a DVC sub but only wired for SVC@ 4ohm right?

would it better to wire it for 2ohm or 4ohm???

if wire at 4ohm...what monoblock would be suitable?
if wire at 2ohm...what monoblock would be suitable?

EDIT:
was also surfing the alphasonik webbie and i came across a sub that looks alot like mine... or at least the cone does. cant remember what the magnet and frame looks like.... but heres a pic of it... might or might not be what im using...

user posted image

my sub looks alot like the psw112c. so it might be that one.

would really appreciate any help.... thanks!

This post has been edited by mADmAN: Apr 25 2006, 02:45 PM
howiechoo
post Apr 25 2006, 06:30 PM

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bro, u can never wire a dvc sub into svc...the number of voicecoil will never be changed..only the wiring option being change

the first pic is for svc sub..since ur sub is dvc, then follow this:

user posted image

user posted image
mADmAN
post Apr 25 2006, 07:11 PM

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@howiechoo
i just visited the site with those images!! hehehehehe

so should i go with 2ohm or 8ohm wiring for my spl? and i was thinking of the agako/prokick monoblocks.....
howiechoo
post Apr 25 2006, 10:50 PM

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spl will go to 2 ohm in ur system.....the lower the better.if u got 2 sub, then go to 1 ohm...so u can maximise ur amp capabilities...
mADmAN
post Apr 26 2006, 12:12 AM

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QUOTE(howiechoo @ Apr 25 2006, 10:50 PM)
spl will go to 2 ohm in ur system.....the lower the better.if u got 2 sub, then go to 1 ohm...so u can maximise ur amp capabilities...
*
cool....will be sure to run it on 2ohm when i have the chance to open up muh woofer box....me only have 1 woofer

thanks alot howiechoo...uve been a great help notworthy.gif notworthy.gif notworthy.gif .... and i think im gonna go hunt for THIS AMP or mebbe THIS ONE....

see which one i can find first rclxm9.gif
howiechoo
post Apr 26 2006, 10:53 AM

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erm, y u need so powerful mono? u are overkilling even if u got 2 x500rms sub...
mADmAN
post Apr 26 2006, 11:05 AM

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no idea man.....heheheh....

future upgrades mebbe ?? tongue.gif

see how lor...still depends on which models im able to find oso.....
howiechoo
post Apr 26 2006, 01:45 PM

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prokick 1200 enuff la...if u only use 1 sub, then my prokick 400 also more than enuff mma..lolz...
mADmAN
post May 1 2006, 12:52 AM

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just to update....

got muhself an agako eg-2000d monoblock for 1.4k in subang. should be one of the older models since its not on the webbie anymore... but im really impressed with this amp.

sadly, my woofer cant really take this amp and it cannot be wired for 2ohm. tried it with the amp and in less than one song started smelling sumthin already. took out the woofer from the box and there was smoke!!!! sweat.gif so left it at 4ohm and now its booming away happily....at least for now... think i might have to buy a new SPL sub later on... brows.gif
howiechoo
post May 1 2006, 01:09 AM

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wonder y u wan to waste ur money..lolz
mADmAN
post May 1 2006, 05:01 PM

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QUOTE(howiechoo @ May 1 2006, 01:09 AM)
wonder y u wan to waste ur money..lolz
*
for the sake of more powah!!! wahahahahhahahahhahah

but in the case of the sub...im doubting it will last ler....hehehhe... in any case...gonna wait for the alphasonik to die first then only start looking into changing.... i do hope the sub lasts....

total cost of ICE up to date.... 8.4k moneyflies.gif moneyflies.gif sweat.gif
driftmeister
post May 1 2006, 08:36 PM

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@_@
8.4k? lolz

u shud change ur box to ported 1

 

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