newbie asking for sifus opinion

[jauw]

hello all my sifus i would like to know is this amp good kenwood kac 849??its a 600w 4 channel amp cause got people selling new thing at a resonable price around rm400 but i dont know about the performance..please guide me.sholud i buy it or not??

im including 2 pics of it the 1st pic is posted by the seller and the 2nd is i found on the net.look closely there is some differences between the 2 thing so i have no idea is the seller selling fake stuff or what i don dare to judge it cause im still a newbie :tongue: so please help me out .......

 

[kyheng]

Well, seller give one is old amp, the web is new one...

 

[dev]

if its only RM400+ then its worth getting it since it a 4 channel amp.. trying asking around the market value of a brand new 1... if the price is very far apart then u should find out y his selling it so cheap... there must b a reason... mayb the amp got problem o mayb his fedup of it n want to let it go n get another better 1 wit bigger volt ... depending on ur setup n how u want to listen too... if just inside the car then it should b fine... if u want to listen like 1km away i dun think the amp will do that...

 

[jauw]

well as i know the amp is still new thing la he said if take more then can get cheapper price lo so are u all sure tha this thing is real not fake or what so ever..??is it not suitablefor spl purpose??why cant listen from 1km away??does this mean the amp sux??

 

[kyheng]

The actual power on the amp is 300watt rms only, which mean 75w X4. How to go for SPL with this amp?

 

[jauw]

if i use it for my mid is it ok?i think my mid is 50w only and what is the differences between watt and rms??is it the 600w is peak power and rms is the continueus power?

if i use like 3 or 4 amp in my car shold i use a elec x over for controlling it or i can use my hu to do that my hu is pionner deh8650

 

[dev]

jauw, im not saying it sux.. just think of it... 1 amp 600v need to beat 4 pieces 6', 4 tweeters, and sub where enough? thats wat i meant dun expect it to b heard from 1km away... if u r talking bout kicker, rockford thats different.... recommanded to use an electronic crossover... once its above 2 amp...

 

[kyheng]

if i use it for my mid is it ok?i think my mid is 50w only and what is the differences between watt and rms??is it the 600w is peak power and rms is the continueus power?

if i use like 3 or 4 amp in my car shold i use a elec x over for controlling it or i can use my hu to do that my hu is pionner deh8650

8650? Your HU got 3 pre-out. is it? Check the box if you still have. If got then no need to buy a crossover or pre-amp, if you want to say money. Try to get another monoblock or 2 channel for your woofer, that is enough for your setup already.
Peak power is the amp can give the max power at 1 time, say 1second or lesser. rms is the true power of the amp.

 

[jauw]

1.yup the 8650 got 3 pre out so i should use the 3 out rather then the pre amp or elec x over but will it function better then the 2 thing?? :rolleyes:

2.how about if i only use the kenwood amp for the 4pcs 6.5 mid and tweeter is it powerfull enough??

3.what is the diffrences between parallel and series wiring cause in the booklet that come with my sub there is 2 option of wiring parallel wiring(dual 2 ohm = 1 ohm load , dual 4 ohm = 2 ohm load) series wiring (dual 2 ohm = 4 ohm load , dual 4 ohm = 8 ohm load)?can all the sifus explain to me please :)

4.is this amp enough power to pump up my kicker solobaric s12 L5 sub cause it it written that the sub require 600w and 1200w peak?how many ohm should i run in order to enough power for the sub and fully utilise the dual voice coil??
http://www.maplin.co.uk/Module.aspx?C=SEO&U=SiteMapByDept&ModuleNo=44171 :tongue:

5.is it the more ohm u run the better? :thumpdown

please help me cause im a total noob and i dont know what to do anymore ..peace

 

[dev]

1)parallel means like car brake light... even if 1 light bulb burn the other 1 will still function (failure wit other components the rest will still function)
2) series curcuit means if 1 component fail the rest wont work...
3) Ohm means resistance... less resistances is better... the best u dun have any resistance at all...

 

[Zenn]

in ice u get what u pay for, so for RM400 u get 4x50W and kenwood amps are usually under-powered. my first amp was kenwood 50Wx2, i replaced with a mtx 30Wx2 and feels like the power was doubled.

i feel its not enough for 4 sets of components in your planned system since u want spl.

the parallel and series wiring is just different ways of connecting the +ve and -ve terminals between your voicecoils and amps.

the magnat amp u asked is 450W mono at 4ohm and 800W at 2 ohm. so depending on the load (after u wire the sub) then u know if enough power or not.

the less ohm u show the amp, the more power it will give.

 

[kyheng]

1. In some case, I will say yes, as this happen to me, with pre-amp got airplane, without it, no airplane.
2. Your 4 channel is just nice for the speakers, provided that they have power input around 75watt per piece. Anyway your tweeter is seperate from your speakers or is a component that come with passive crossover? If seperate one, then you have to make your own passive crossover (buy 2 250uf,16volt capacitor and 2 12volt bulb)
3. Follow what Dev said. This part I not that sure, sorry.
4. From the amp spec, the most is you get your amp overheated and shutdown after sometime. No big deal here, haha. Is abit under power to push your sub to max..

 

[kyheng]

in ice u get what u pay for, so for RM400 u get 4x50W and kenwood amps are usually under-powered. my first amp was kenwood 50Wx2, i replaced with a mtx 30Wx2 and feels like the power was doubled.

i feel its not enough for 4 sets of components in your planned system since u want spl.

the parallel and series wiring is just different ways of connecting the +ve and -ve terminals between your voicecoils and amps.

the magnat amp u asked is 450W mono at 4ohm and 800W at 2 ohm. so depending on the load (after u wire the sub) then u know if enough power or not.

the less ohm u show the amp, the more power it will give.

The amp at 4ohm is only 225w and 400w at 2ohm.

 

[jauw]

i feel its not enough for 4 sets of components in your planned system since u want spl.


the magnat amp u asked is 450W mono at 4ohm and 800W at 2 ohm. so depending on the load (after u wire the sub) then u know if enough power or not.

the less ohm u show the amp, the more power it will give.

well im not using 4 sets of componets im olny using 2set on it which means 4 pieces of 6.5 4 tweeter and 2 passive croosovver so like this is it enough power??

about the magnat amp after i wire it up theni know but i scare by the time i wire it up not enough power i will cry :tongue: cause i not yet buy so i need to know more and make sure it really can power up my amp then ill buy cause the price is resonnable for a amp with brand.

 

[jauw]

airplane.
2. Your 4 channel is just nice for the speakers, provided that they have power input around 75watt per piece. Anyway your tweeter is seperate from your speakers or is a component that come with passive crossover? If seperate one, then you have to make your own passive crossover (buy 2 250uf,16volt capacitor and 2 12volt bulb)

4. From the amp spec, the most is you get your amp overheated and shutdown after sometime. No big deal here, haha. Is abit under power to push your sub to max..

well my mid is component set so it come with the crossover but the amp provide 50rms at 4ohm so is it ok ??my mid is mb quart dsd 216

about the magnat amp if i lower the ohm of the sub and the amp will it help to keep mantain and not get overheated??

 

[jauw]

The amp at 4ohm is only 225w and 400w at 2ohm.

sorry i dont understand this please explain it more detail ok noob here sorry for the trouble

cheers.......yam seng

 

[kyheng]

That is the actual power af the amp at 4ohm or 2ohm, you can check the website that you post here, under the spec. So if your woofer is 600watt rms at 2ohm, then the amp is 200watt rms under power. Like this after some time sure your amp will overheated and cut-off.

Looks like your 4 channel amp also abit under power for your peakers. Is better you check the website for your speakers spec.

 

[Zenn]

well my mid is component set so it come with the crossover but the amp provide 50rms at 4ohm so is it ok ??my mid is mb quart dsd 216

about the magnat amp if i lower the ohm of the sub and the amp will it help to keep mantain and not get overheated??

sorry meant to say 2 sets (4 pcs) in the first place. i feel its not enuff power bcoz kenwood like to overrate their amps, so if u like to play loud i think it wont be enough, for normal listening can la.

when u lower the ohm, u will increase the power, so your amp gets hotter. if u increase the ohm your amp gives less power and the sub wont perform well.

 

[calvinhpk]

make sure the amp can load to 1ohm

 

[jauw]

well im not using it for any woofer purpose im only using it for 6.5 mid only lo thanks all for the info