Hello guys,

anyone heard of RDS pro subwoofer before?
isit good? what's the rating?
is it international or local product?
what's the price range?

any comments?

local or china product that copies a/d/s
not really recommend by me

anyone knows the specs of it?

it's a chapalang brand.. who would know.. even if there is.. it wouldn't meet the standard..

Get the vendor use meter to test the RMS does it meet the value as specify on the amp. Many of China or local product doesn't meet. Also test out the duration of the performance. Some amp get overheat easily, and the quality will drop after some duration of continue operation.

i doubt they will have the equipement to measure the RMS power
even KF, KKLau, ACP also dun have it

threadstarter,
kindly state ur budget and ur music preference and also ur current setup so that we can guide u to the right path

This post has been edited by driftmeister: Sep 4 2006, 05:30 PM

If i ain't mistaken, RMS power is just the capability of the voice coil to take in the amount of heat produced by the increased power, the better the capability of the voice coil to dissipate the heat, the higher the RMS rating, but u might be wrong though

There's not many ppl who would invest in machines that actually measure RMS power(if not mistaken, it doesn't even exist, the value is taken into play by calculation), as well, we don't listen to sine waves all day long, we listen to music, which fluctuates in terms of power being sent to the speakers, so... there's no FIXED value at all.

that equipment to test impedance (OHM) of the speakers.. i know larhh but then to test the RMS.. never hear b4..

This post has been edited by mattchin: Sep 5 2006, 01:43 AM

Testing of the DCR kinda serves no point, any multimeter that's accurate enough would be able to get the DCR.

Yes RMS come from calculation. It would be the most accurate way to measure power is RMS (root mean square) watts.

The RMS value is obtained by squaring the value of the signal, taking the average, then the square root. This is the equivalent of the actual power delivered. Most reputable manufacturers use the RMS rating.

To get RMS power from peak or max power just divide by three. Music power is just half of peak power. For example, an amplifier is rated at 100w (peak) per channel. The so called Music power would be only 50w per channel. The RMS power would be 33w per channel. Big difference, isn't it?

Just be careful when checking specifications of amps before buying, to see what you are really getting. Always ask for the RMS power of an amplifier.

this brand sounds familiar. if im not mistaken an installer in subang offered me this sub when i installed my agako monoblock with him... the bugger even offered me a 15" for my kelisa!!

anyway...according to him RDS is from the same makers of agako and prokick. so i guess it aint a copy of a/d/s. meaning theyre a local brand...local but good.

my guess is this should be the same brand sub used (paired with the Agako EG-3000D monoblock) that helped them win SPL competitions.

if RDS is from the same makers as agako and prokick and if ur willing to give it a try...i say go ahead as agako and prokick maybe local...but theyre certainly badass

ok... cause i got this woofer from my friend but i dont know the specs, so im not sure what amp can be used to power this woofer fully loh

that's why im asking if anyone knows the spec of this sub woofer or not

they're crap

yarhh... 2 win a competition very easy 1.. company A said i will sponsor ur club for certain thing and u gimme a champion.. OK? and OK it is.. anyway.. not sure how this thing works larhh..

i don blif in chapalang woofers..

though u can check how many voice coils u haf then u might b knowing how much is ur woofer's impedance.. then how many rms u wanna whack ur woofer.. cash out for the most powerful amp.. sure can 1 larh like that..

1stly:
1st of all thanks for all the reply, at least im learning something

2ndly:
wah liu...... bro, bo lui for good amp loh, since this sub is only low-->mid range ones, i plan to get 2nd average quality amp to drive it loh, budget around 300-400

if amp too keng, can burn the sub ah? i mean if not tuned properly or too much power to the sub or something like that, sorry im still newbie.

im still in dilemma now cause i dont even know the sub specs; eg ohm, watt, etc etc.

tho i might still a newbie in ice, but with at least with the specs i can ask ppl around what amp that is suitable to power the sub

send someone to help me please!!

This post has been edited by CaLz: Sep 7 2006, 01:21 AM

sigh..

actually 2 channel amplifier wif around 300+- rms can whack any woofer.. o a monoblock amp also can..

u can try 2 take a pic 2 larhh.. maybe some tai ko here might know lorhh..

btw.. the (inches)" of the woofer also u didn't write.. and wat will u do after knowing the specs?

not sure where rds come from, but it's quite famous for local spl competition....i mean sub....for amp, seldom see it...btw, the sub forgot wat model, i think double magnet model need a very huge power to make it loud.....abd i dun think it give good sq....

it's a 12" inches, will upload pic in a while

here's the picture as promised

2x12" with box


after i know the spec.. umm im gonna start looking for 2ch amp?

thankiu sifus

tai kors...

forgotten that ported woofer box is more power hungry o sealed is? i can't remember..

CaLz: maybe u can take out the woofer and let us c it's backside..

hmm.. 2 channel o monoblock will help u whack these 2 woofers.. try find those wif good power so that the bass will bcome more powerful.. to play safe, get a monoblock cz it might b a 2 ohm setting.. only a few 2 channel amps r stable at 2 ohm.