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 Car Audio: SUB-OUT=Subwoofer without Amplifier

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TSaureusy
post Jun 4 2006, 11:17 PM, updated 20y ago

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Hi, I've just bought an audio cd-mp3 player Sony CDXGT550, here's its specification:

* S-MOSFET 208 Watts Max (52 x 4)
* Aux-In-Lite (Rear)
* CD/MP3/WMA/ATRAC3 Playback with ID TAG
* 24BIT Digital to Analogue Converter
* Pre-Out x 3 (Front + Rear + Sub)
* RM-X151 - Wireless Card Remote (incl.)
* EQ3 Stage2 - 3Band EQ/7Presets
* DSO II - Dynamic Sound Stage
* CD-R/RW Playback
* CD-Text Display/Scroll
* BBE-MP

I was told by the car shop worker that this player allow connection to a subwoofer without need of going thru' an amplifier. Is that true?

I thought without an amplifier, connecting subwoofer directly to a player will always burn the player?

Thanks.
howiechoo
post Jun 4 2006, 11:21 PM

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erm...i always wonder how come they say can direct connect to sub..btw, maybe they mean active sub? i was wondering too and wanna get the answer...consider the hu provide 52x4 pmpo is about <20 rms each..if they able to bridge, then it become like say 60rms...but any sub that had such low rms? erm...8" chap ayam?
scotty
post Jun 4 2006, 11:27 PM

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thread moved to a better place rclxms.gif
Infinity
post Jun 4 2006, 11:40 PM

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connect to active sub is also possible...

or get 2x 8" hanging at behind with a proper box attached... anyway with 52W each... don't expect much smile.gif
howiechoo
post Jun 5 2006, 02:29 AM

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even it's 8" it will be very hard to drive it...unless the 8" is those really old school paper cone sub with no rubber / foam surround...
craziechild
post Jun 5 2006, 09:28 AM

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marketing craps.... they say can is when you bridge it it will play low frequency only kua... dun expect much if you connect it to a sub directly...
driftmeister
post Jun 5 2006, 09:45 AM

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hmm
i would like to know more about it laugh.gif
so that i can save my money on amp and throw more money on sub !
singchaii
post Jun 5 2006, 08:08 PM

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Mean must have amplifier only can put in subwoofer?
craziechild
post Jun 5 2006, 10:39 PM

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not really... if you use normal mid-woofer like 6", 6x9 mayb can play if the speaker can handle them... if you wan it to play sub woofer then need a amp already.... cuz normally a sub will need at least 200Wrms to play... there is no HU in the world tht can give out tht much power i think...
jamal_skywalker
post Jun 6 2006, 05:03 PM

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is it amplifier or pre-amp?????if im not mistaken those sony player has function ssame as those pre-amp...it can control ur amplifier...means u can adjust the power level of ur amp through the player it self
ignn_tion
post Jun 6 2006, 07:49 PM

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I think you can drive a sub with the hu, but it won't be strong lor. And it will be very touchering for the HU.
driftmeister
post Jun 6 2006, 09:34 PM

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QUOTE(craziechild @ Jun 5 2006, 10:39 PM)
not really... if you use normal mid-woofer like 6", 6x9 mayb can play if the speaker can handle them... if you wan it to play sub woofer then need a amp already.... cuz normally a sub will need at least 200Wrms to play... there is no HU in the world tht can give out tht much power i think...
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no la
there's some sub which require 75w rms power
PrinceHamsap
post Jun 6 2006, 11:36 PM

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perhaps the salesman was mentioning ... LOUD function laugh.gif
singchaii
post Jun 6 2006, 11:56 PM

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QUOTE(craziechild @ Jun 5 2006, 10:39 PM)
not really... if you use normal mid-woofer like 6", 6x9 mayb can play if the speaker can handle them... if you wan it to play sub woofer then need a amp already.... cuz normally a sub will need at least 200Wrms to play... there is no HU in the world tht can give out tht much power i think...
*
Err.. My car now have 2 way speaker only. Can i jz put in a amp and a sub woofer? Or i need to put in mid-bass speaker then only can put a amp and woofer?
jamal_skywalker
post Jun 7 2006, 12:13 AM

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my experience by direct connecting the sub to the player..it will damage ur player IC...(some sort of chip inside the player)..
summore no 'kiick' when using direct connection..hehe
howiechoo
post Jun 7 2006, 01:26 AM

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most probably mosfet / amp transistor..if mosfat, then can get new player if ur play cost <400...change mosfet priced RM200 for pioneer..othe i not sure..but if amp transistor, cost<50..lolz..if by me <30..hahaha
LuVjunz
post Aug 5 2006, 12:16 PM

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QUOTE(howiechoo @ Jun 7 2006, 02:26 AM)
most probably mosfet / amp transistor..if mosfat, then can get new player if ur play cost <400...change mosfet priced RM200 for pioneer..othe i not sure..but if amp transistor, cost<50..lolz..if by me <30..hahaha
*
yup it is impossible to power up a 10 or 12 or 15 sub with just a player. if it can then the player is worth more than 2k. coz got build in amp. which is impossible. if there is then all the amp is going to be extinct. thumbup.gif tongue.gif

 

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