| swaroopvg |
Dear sir....
i am plannin 2 setup a subwoofer n 4 other speakers ...i am plannin 2 buy a subwoofer ...say 10" with 200-250 wats.. the problem is the amplifier is usually connected b4 the crossover netowrk rite... n my other speakers r rated as 5 watts.. 4 ohms ( i managed 2 remove 2 spekers from an old Pioneer music systemwith prrty gud cone area which i plan 2 use as midrange...) the tweeter too is of the same specs.... to power the subwoofer i will have 2 use a amplifier of 250 wats which will be connected 2 thecrossover network... the other speakers r also connected to the croosover
..so wont the power from the amplifier burn my "other speakers"...or can i give the input into the crossover thru a small amplifier ... then from the crossover thru the 250 watt amplifier to the subwoofer
-- am planning 2 install this in my room not in a car...
i cant go 4 expensive ones as the means r limited...
secondly.... wont an IC 810 powered amplifier be enuff 4 my speakers ( cept my subwoofer )
i am worried over the amplifier for subwoofer... i plan 2 build one by myself ( i have got the schematic... which claims 2 perform well) ... so can i connect the subwoofer thru the amplifier which takes the input from the crossover "WOOFER OUT PUT SOCKET" |
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| LightwaveDude |
Not quite the 200 watts you're looking for, but for the price, you can't beat this really: http://www.mcminone.com/product.asp...5Fid=50%2D6266A
I have the plate amp and it has worked very well with my Ascendant Audio Assassin 12" driver. It can drive plenty loud as long as it's not expected for long periods of time (it gets warm after a while). After shipping, it only cost be around $60 which should be hard to beat.
[Edit] I noticed you're from India.... might be more to ship it to you than the amp costs.... |
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| EC8010 |
Dear swaroopvg,
as you know, this is an international forum that has adopted English as its language. That means that there are many posters (such as yourself) for whom English is not their first language. In general, these members have been taught correct, grammatical English and may be at any stage of mastering the language from beginner to being able to tell jokes in English. As a courtesy to these members I would ask you to please write your posts in grammatically correct English, not a semi-incomprehensible text-speak mish-mash which I, a native English speaker, find difficult to understand.
Thanking you in advance,
EC8010 |
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| RobWells |
I understood what he was saying .:)
I'd be looking at a plate amp with high level inputs for the subs.
Hey EC8010, why don't you tell him that in Indian ?:rolleyes: How rude are you ?
Rob. |
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| anatech |
Hi Rob,
I was going to post. I agree with EC8010. I had difficulty reading the post as well. I'd have the same opinion of a person who uses English as their primary language.
That looks more like the short hand seen on MSM or Google than an attempt at English.
So without being rude, please post in clear English, the best you can manage.
-Chris |
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| EC8010 |
Rob, you are quite right to question whether I should criticise a foreigner's English - I thought exactly the same as you about my ignorance of his language. However, although you and I as native English speakers can understand what he means, how easy would it be for someone from Scandinavia, Peru, Germany, or anywhere else that has been taught grammatically correct English?
It might amuse you to know that last weekend I showed interest in a touring Frenchman's bike. A moment later, he asked me for directions to Bath. Fortunately, although he didn't speak a word of English, I was able to resurrect enough (probably appalling) French to help him on his way and to dissuade him from taking a dangerous route (he proposed to ride his pushbike along the A4). |
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| RobWells |
You could have just edited his post to 'proper' english as it would have taken the same time as to post what you did. To me he made an excellent attempt at English, compared to my attempts at most other languages:o
Any answers for his question ?
I'm suprised you didn't send the french chap down the M4 btw.;) :devilr:
Rob. |
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| EC8010 |
You're right, I could undoubtedly have saved time by altering his post rather than making my own post, but I care about the forum, and I'd rather expend effort once that repays itself many times over than fiddle around for ever more. Besides, I feel that any member's post is sacrosanct. Yes, moderators have the power to edit, but absolute power requires absolute discretion, so being a moderator becomes more of a sacred duty than a privilege.
Sadly, I know little about subwoofers, so I can't offer technical advice there.
I wouldn't dream of knowingly putting anyone in danger! I've had enough near-misses myself to want to protect others. (Especially someone with such an interesting bike!) |
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| francis varkey |
I saw the original post yesterday but didn't want to be the first one to object/advice with regard to language.
Swaroop,
I can see that your english is quite good(sentence formation) but you've kicked the punctuations away and used the numeric shortforms that are so annoying:)
Now the small(IC810) amps, if I remember correctly, are about 7Watts(very noisy, classB). Since it seems you are on a cheapo route, they may be sufficient just for your 'pioneers'.
You'll fry the sub-amp if you feed it directly from the speaker level outputs without stepping them down to line level(say 150mV for example)
You can feed the sub amp(you're gonna build) and the 810 in parallel, but you will need a pair of subwoofers and its amps.
Otherwise you will have to add the left & right channel signals at a 'line level' to get one subwoofer signal which is then amplified and fed to the subwoofer. Can't help you out with the electronics though; much too busy and I don't have my reference circuit books with me at the moment, they are far away in India.
Regards from a fellow Indian.
RobWells,
There are so many Indian languages, not sure which one to use:D |
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| sagarverma |
There are close to 1700 languages in India.Hindi is the most widely spoken and understood.
Respect for any language accounts for your respect for that society as well.So write properly if you know how to.
Straight in the face kind of conversation might be acceptable in some nations but many cultures take them as rude ,so it is required to voice objections in a subtle way acceptable to all cultures and societies.In a wonderful and truly multicultural forum like this,it becomes all the more important.
Swaroop,
tum IC 810 mat use karo kyunki woh badiya nahi hai aur toh aur woh yahaan par fake milti hai.tumhara luck hoga ki woh fake kitne din chalegi ya chalegi he nahin.
tda1554 aachee hai.uski chaar channels hai 11w each.uski datasheet mein saari jaankaari hai.bahut sasti hai aur fakes ka chakkar kam hai.powerful bhi hai,pura circuit bahut he chota hai.
Sagar |
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| richie00boy |
Editing the post will probably be lost on the person unless you actually tell them what they did wrong.The point is that some others may find it hard to read, and I'm 100% certain he wasn't taught to write English like that, and his English is obviously good if he can convolute it in such a way like that.
I saw the post and couldn't be bothered to answer if they can't be bothered to type properly - and there's a difference between struggling with English and lazy construction. Maybe wrong I know, but txt spk just annoys me, it serves no purpose on anything other than an old mobile phone and is harder to read than proper English.
edit: I would use a separate amp for the sub because it makes the crossover much easier to do, but if using one amp the smaller drivers will probably need attenuation which will go some way to preventing their death. |
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| swaroopvg |
i am sorry.... that i used poor english...... please forgive me... i hope u will be able to read the following edited version
i see that there are a few Indians ( malayalees) in this forum...
My address is
[address removed by mod team, per swaroopvg's request]
Dear sir....
i am plannin to setup a subwoofer n 4 other speakers ...i am plannin to buy a subwoofer ...say 10" with 200-250 watts.. the problem is the amplifier is usually connected before the crossover network rite... n my other speakers are rated as 5 watts.. 4 ohms ( i managed to remove 2 speakers from an old Pioneer music system with pretty gud cone area which i plan to use as midrange...) the tweeter too is of the same specification.... to power the subwoofer i will have to use a amplifier of 250 watts which will be connected to the crossover network... the other speakers are also connected to the crossover
..so wont the power from the amplifier burn my "other speakers"...or can i give the input into the crossover through a small amplifier ... then from the crossover through the 250 watt amplifier to the subwoofer
-- am planning 2 install this in my room not in a car...
i cant go 4 expensive ones as the means r limited...
secondly.... wont an IC 810 powered amplifier be enough for my other speakers ( cept my subwoofer )
i am worried over the amplifier for subwoofer... i plan 2 build one by myself ( i have got the schematic... which claims to perform well) ... so can i connect the subwoofer through an amplifier which takes the input from the crossover "WOOFER OUT PUT SOCKET" |
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| RobWells |
Hi Swaroop,
I think you need to look at ways of converting the high level signal of your crossover out to a low level one. Most plate amps have this built in. I ~think~ they use transformers, but they may just use big attenuators.
Rob.
For the language sensitive:
Whatto chaps,
Over tea and scones the other day I thought about setting up a bally subwoofer with four other speakers. I'd been planning to buy a subwoofer - all the rage in the States you know. Had a few gins with 'Cutter' Jenkins and suggested using a 10" driver with a 200-250W amplifier. He said it may cause some problems as usually the blooming amplifier is connected before the crossover network - what a wheeze! All my other speakers are rated at 5W, 4 ohms. Drat and blast! I got the drivers from an old Pioneer system by the way. The good old tweeter is from the same system, and of the same spec. After a few more gins and a round of croquet I had the thought that maybe the power I'll be using for the subwoofer driver may be too much for the poor old midrange and tweeter drivers. Would the high power amplifier burn out the crossover of my midrange and tweeters? Luckily Marjorie turned up with cucumber sandwiches and Pimms so I could have a break while I thought about it. Could I use a small amplifier to drive my crossover, and then take the sub out and drive the subwoofer amplifier from that ? Hmmmmm! What a dilemma! I wish somebody could step in to help me here. I thought I'd use this system in the house, rather than in the Rolls.
A few more Pimms and I realised I can't stretch to expensive stuff as I've spent it all on gin and Pimms!
Thought maybe an IC 810 powered amp may power the mids/tweets. Hopefully some helpful chap may help me there.
I admitted to Marjorie the other day I'm a bit hesitant about building my own ruddy sub amp as I'm not sure whether I can drive it from high level signals. Maybe a clever chap may know how to drop a high level signal to a standard line level via transformers or something?
Anyway, must be off. Many thanks chaps! Chin chin! |
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| EC8010 |
My sort of language... and screamingly funny.
Toodle pip! |
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| francis varkey |
Swaroop,
Trudging along the cheapo path, I've attached a beautiful hand drawn sketch. It was obtained by yahooing.....;)
It's a simple resistive step down that should do the job for you.
You'll need one of these per channel.
The "speaker level" is the input from your passive crossover's woofer terminals.
Still, the 810 is not recommended at all; I remember LA4440 kits used to be available 10years back. In Cochin, you can get such stuff from the many shops at Ravipuram Junction, M.G. Road.
:drink: :drink: :drink: Get me some bacardi n cola n lime! |
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| richie00boy |
Speaker to line step down is usually done by resistive network not transformers in plate amps. A 1.8kR series resistor with 200R to ground will provide 10:1 attenuation.
swaroop, you might want to get a moderator to remove your address from a public forum? |
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| EC8010 |
| quote: | Originally posted by richie00boy
swaroop, you might want to get a moderator to remove your address from a public forum? |
Yes, make the request, and it's easily done. |
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| swaroopvg |
thank you for the wonderful response.......
yes please remove my address |
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| swaroopvg |
i found this circuit .... which claims to be exceptionally well.....
i have bought a sub woofer now ....... 100 watts RMS...8"....DAINTY
can i use this circuit to power my sub
this is address of the site
http://sound.westhost.com/project19.htm |
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| pinkmouse |
| quote: | Originally posted by swaroopvg
thank you for the wonderful response.......
yes please remove my address |
Done. :) |
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| anatech |
| quote: | thank you for the wonderful response.......
yes please remove my address
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Done,
PM, we're all over this one! ;)
-Chris |
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| sivan_and |
| These subs (dainty ) r cheapo chineese units....thangalkku verey pani (joli elley ) :D |
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| sivan_and |
| Sub driver nu pattiya (chip amp LM3876) PCB vendey putraa ? |
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| Samuel Jayaraj |
| Just as people were wondering about the incorrect use of English not being in good taste in an International Forum, we have here guys posting in transliterate Malayalam (Language spoken in Kerala, India). How much more insensitive can we Indians get, at times?? Come on guys, get your act together and learn to respect people of other cultures and languages (including native English speakers), trying to make some intelligent conversations in English. |
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