Omega Owners Forum
Omega Help Area => Omega Electrical and Audio Help => Topic started by: duggs on 29 May 2011, 00:28:15
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I don't understand speakers too well but i have a question for those that do please.
I picked up some nice, quality Panasonic speakers to day in a sale. Technically the sort that "attach" to a TV suround sound DVD player etc.
Can I wire them into my Sony Xplod for the rear shelf and what are the potential dangers of doing so. At the moment they are wired into my PC's Soundblaster X-Fi sound card and they seem happy but I was thinking of wiring in another set to my car.
Any thoughts or advice please.
The Xpold has a 45 watt output I believe and the Panasonic's are 120 watt.
Sure it's an elementory question but I don't know....Do I run the risk of something going bang if I try to use them in the car. ?? :o :-/ :-[
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What size are they?? :-?
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TBO the original speakers are quite good compared to some higher powered speakers out there, yes they might be low wattage, but very capable! :y
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The Sony will only run 4 Ohm speakers, and has one of the most fragile audio circuits of any car stereo.
Very easy to blow it if you connect anything that was never designed to be connected.
I think TV speakers were 16 ohm ?
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oooooooo....so running 16ohm speakers from a 4 ohm source is a receipe for disaster then.
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oooooooo....so running 16ohm speakers from a 4 ohm source is a receipe for disaster then.
Depends on how hard you push it, but the amp will certainly struggle to drive a 16[ch937] load if it is expecting to see one quarter of that.
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oooooooo....so running 16ohm speakers from a 4 ohm source is a receipe for disaster then.
Yep !
Stick to car speakers !!
;)
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i dont think the amp will be affected
car stereos are normally designed to run at 4 ohms
if you connect a load of more than 4ohms ie 16 ohms
it just means that you are not using the amp at its full potential
so the car stereo will only be putting out alot less than 45watts
its kind of defeating the obeject really
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i dont think the amp will be affected
car stereos are normally designed to run at 4 ohms
if you connect a load of more than 4ohms ie 16 ohms
it just means that you are not using the amp at its full potential
so the car stereo will only be putting out alot less than 45watts
its kind of defeating the obeject really
You are missing the point !!
Whilst what you say would certainly be the case with most car stereos, Sony units are constructed in such a way that anything out of tolerance will result in the imminant destruction of the internal audio circuits. They are simply not built as robustly as other brands.
4 Ohm Car speakers ONLY !!
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The TV / Surround Speakers should be 8 ohms, so its going to be -3db or around half the power from a 4 ohm source.
In the real world of loudness through, I would have thought that modern Car Audio speakers would have a much better input sensitivity rating than that for TV audio so your probably going to lose a few more db's in that respect.
As previously said, stick with the Car Audio stuff.
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i dont think the amp will be affected
You are obviously not "au fait" with impedance matching, and it's effects when you choose to ignore what the manufacturer says their equipment needs to see.
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i dont think the amp will be affected
You are obviously not "au fait" with impedance matching, and it's effects when you choose to ignore what the manufacturer says their equipment needs to see.
:y :y :y :y
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i dont think the amp will be affected
You are obviously not "au fait" with impedance matching, and it's effects when you choose to ignore what the manufacturer says their equipment needs to see.
not being funny but ive been doing car audio installs for many years
ive got a trophy from db drag to prove i aint no rookie
neither am i questioning the advice given by some members here, as theres a lot of people here with a lot of good knowledge
but when it comes to car audio i do think i know what im talkin about
and coming back to the point if the panasonic speakers are rated at 16ohms then i would again say connect them i will guarantee you will not blow either the stereo ic nor the speakers
the ic are designed to run speakers at 4ohm and not less
nothing stops you from connecting a higher impediance speaker the ic just wont work at its full potential
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connect them i will guarantee you will not blow either the stereo ic nor the speakers
Tango,
Whilst I do not question your knowledge of impedance matching at competition level, (incidentally, you probably recognise our name as actually holding many of the competitions and handing out the trophies!) the point I am making here, is that at grass roots level, probably something you haven`t messed with for a while, the Sony units are simply too fickle for a non-4 ohm impedance, even a higher one as it unbalances the output stage. I can`t think of anyone in the car audio circuit using Sony head units at the moment, and this is for good reason - they blow far too easily.
Yes, other brands can be played around with with different impedances giving various results, but doing this with a Sony will only end in tears - if you have any experience with the audio IC`s that Sony are currently using, then you will immediately see the problem. They also blow very quickly when connected to Yank cars runing 8 Ohms for exactly the same reason - its the wrong impedance ! They are designed to run at 4 Ohms only.
;)
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the ic are designed to run speakers at 4ohm and not less
nothing stops you from connecting a higher impediance speaker the ic just wont work at its full potential
The IC won't work at it's full potential because it's being held back by the load it is presented with, however the IC won't know this and will try it's best to deliver the full volume the end user is requesting.
This causes the IC to work harder, which in turn increases it's temperature, which in turn makes it pull more current, which makes it get hotter still, etc, etc, etc.
As Dave has already stated, Sony are using IC's that offer sod all in the way of self protection so connecting anything other than the recommended load is playing with fire.
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Makes a change to see Sony getting getting a good kicking, rather than the usual Dr Bose and His secret world of inventions.
:y ;D
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Makes a change to see Sony getting getting a good kicking, rather than the usual Dr Bose and His secret world of inventions.
;D ;D
Many years ago, I used to operate a Sony Prestige service centre, the highest achivement level that could be attained, I built one of their Manufacturer demo cars, and I absolutely loved the stuff - In fact, back then, if you cut my arm off, my veins, like a stick of rock would probably have said Sony through them.
So it really goes against the grain for me to knock the brand, but the manufacturing quality and reliability standards nowadays are so very poor, that the product is not even close to what it once was. It really is truly awfull in my professional opinion.
Rumours are also still rife within the industry that Sony are actually going to be pulling out of car audio imminantly. Maybe they too have realised just how bad the stuff is.
:'(
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Makes a change to see Sony getting getting a good kicking, rather than the usual Dr Bose and His secret world of inventions.
;D ;D
Many years ago, I used to operate a Sony Prestige service centre, the highest achivement level that could be attained, I built one of their Manufacturer demo cars, and I absolutely loved the stuff - In fact, back then, if you cut my arm off, my veins, like a stick of rock would probably have said Sony through them.
So it really goes against the grain for me to knock the brand, but the manufacturing quality and reliability standards nowadays are so very poor, that the product is not even close to what it once was. It really is truly awfull in my professional opinion.
Rumours are also still rife within the industry that Sony are actually going to be pulling out of car audio imminantly. Maybe they too have realised just how bad the stuff is.
:'(
Well I wasn't going to say anything, but glad you said that as when I acquired my Cossie many moons ago it came with a Sony HU, Sony Amp and some JBL's (No Subs) and I have to admit it sounded remarkably clean, so yea, very surprised they've gone down hill so much these days.
Maybe they should stick to making gadgets for the Bond Movies. ;D
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As for using household speakers, they are far from ideal.
Car audio speakers have a suspension setup with much less compliance so as minimise vibration effects (from the engine, drive train, road surface etc) and microphony.
Dave, what amps IC's are Sony using these days?. The last ones I saw (a fair few years ago!) where Philips TDA1554 jobs and variants there of in bridge mode. I recall they were horrible class B things with pretty poor cross over distortion.
Are there any digital amps about now?
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most of the Sony`s still seem to be using poor quailty TDA7xxx amps, or cheapie variations thereof, and a pre amp stage designed by Mr M.Mouse.
Not seen any true Digital devices in car audio as yet, although I think that some of the really high end stuff have "dabbled" but not sure if it made it to production models - I`m thinking early variants of Alpine F-1 and Mackintosh - but the stuff is so rare that I just don`t get to play with them, and certainly not inside when I do.
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Makes a change to see Sony getting getting a good kicking, rather than the usual Dr Bose and His secret world of inventions.
;D ;D
Many years ago, I used to operate a Sony Prestige service centre, the highest achivement level that could be attained, I built one of their Manufacturer demo cars, and I absolutely loved the stuff - In fact, back then, if you cut my arm off, my veins, like a stick of rock would probably have said Sony through them.
So it really goes against the grain for me to knock the brand, but the manufacturing quality and reliability standards nowadays are so very poor, that the product is not even close to what it once was. It really is truly awfull in my professional opinion.
Rumours are also still rife within the industry that Sony are actually going to be pulling out of car audio imminantly. Maybe they too have realised just how bad the stuff is.
:'(
Well I wasn't going to say anything, but glad you said that as when I acquired my Cossie many moons ago it came with a Sony HU, Sony Amp and some JBL's (No Subs) and I have to admit it sounded remarkably clean, so yea, very surprised they've gone down hill so much these days.
Maybe they should stick to making gadgets for the Bond Movies. ;D
And some internals for Iphones..... I see a pattern emerging!
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Maybe they should stick to making gadgets for the Bond Movies. ;D
Ironically they do make some decent handsets. I had a C902 Titanium (Quantum Of Solace) and that was rock solid, but they do seem to be dragging their backsides on the Smartphone front where (official) firmware updates are concerned.
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Makes a change to see Sony getting getting a good kicking, rather than the usual Dr Bose and His secret world of inventions.
;D ;D
Many years ago, I used to operate a Sony Prestige service centre, the highest achivement level that could be attained, I built one of their Manufacturer demo cars, and I absolutely loved the stuff - In fact, back then, if you cut my arm off, my veins, like a stick of rock would probably have said Sony through them.
So it really goes against the grain for me to knock the brand, but the manufacturing quality and reliability standards nowadays are so very poor, that the product is not even close to what it once was. It really is truly awfull in my professional opinion.
Rumours are also still rife within the industry that Sony are actually going to be pulling out of car audio imminantly. Maybe they too have realised just how bad the stuff is.
:'(
I have a MDX5970 (I think that is right oldish MD head unit) is that one of the quality units?
Also the Xplod stuff - is that the cheapy junk?
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In my opinion, the Sony stuff peaked around the late nineties to the turn of the millenium - and I`d say from 2002 onwards went downhill fast.
Ironic that they launched a product called Xplod, as many of them started to !! Those that stayed running long enough that is !
:-X
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In my opinion, the Sony stuff peaked around the late nineties to the turn of the millenium - and I`d say from 2002 onwards went downhill fast.
Ironic that they launched a product called Xplod, as many of them started to !! Those that stayed running long enough that is !
:-X
1999 model then.
So in that period.
And yes a Sony Centre moaned at me for being disparaging about Xplod
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In my opinion, the Sony stuff peaked around the late nineties to the turn of the millenium - and I`d say from 2002 onwards went downhill fast.
Ironic that they launched a product called Xplod, as many of them started to !! Those that stayed running long enough that is !
:-X
With the exception of Bravia Tv's, I think that applies to everything they make- not just ICE
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With the exception of Bravia Tv's, I think that applies to everything they make- not just ICE
I`m not sure that Bravia TV`s can be attributed to them, I had a feeling that the good ones used the screens from the LG factory, albeit under a licensed name ?
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I had a feeling that the good ones used the screens from the LG factory
yup LG and samsung :o
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I had a feeling that the good ones used the screens from the LG factory
yup LG and samsung :o
iirc, there's only about 5 companies in the world make plasma screens, although the quality obviously varies by cost and end manufacturer
Much like only 2 people in the uk make baked beans (Heinz & HP), however the recipe/cost/taste is vastly different between happy shopper & Tesco finest!!
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As for using household speakers, they are far from ideal.
Car audio speakers have a suspension setup with much less compliance so as minimise vibration effects (from the engine, drive train, road surface etc) and microphony.
Dave, what amps IC's are Sony using these days?. The last ones I saw (a fair few years ago!) where Philips TDA1554 jobs and variants there of in bridge mode. I recall they were horrible class B things with pretty poor cross over distortion.
Are there any digital amps about now?
i can vouch for that.
many moons ago a mate had them on the back shelf of his chevette.
i still have the lump on the back of my head..
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With the exception of Bravia Tv's, I think that applies to everything they make- not just ICE
I`m not sure that Bravia TV`s can be attributed to them, I had a feeling that the good ones used the screens from the LG factory, albeit under a licensed name ?
The LCD panels are made a part of a joint venture with Samsung, the Plasma panels are LG.
There Hifi seperates are still pretty reasonable though.
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.....a product called Xplod
;) That sounds like a product 'Josh Wyatt' should be selling! ;D
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With the exception of Bravia Tv's, I think that applies to everything they make- not just ICE
I`m not sure that Bravia TV`s can be attributed to them, I had a feeling that the good ones used the screens from the LG factory, albeit under a licensed name ?
Shared line with Samsung S-LCD