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 ( with 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
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Replies (5)
swez on 06/9/2006 15:38:42
Glad you came for advice before you make any purchases. There are several options to consider here and with some budget figures, we can help you pull the plan together.
1. What kind of budget are you working with?
2. The mid/high speakers mentioned, are they only 5 watts?
3. Are you planning to use a factory or Aftermarket player? (details pls)
4. Are you sure you want dual 10's? A single strong 10 or 12 will easily handle this wattage range and be cheaper and smaller too
Most folks use a 2 or 4 channel amp to power front and rear speakers. Most amps have adjustable High Pass Crossovers filters, (HP filters) to block out lows to small speakers that cannot take much power in lower frequency range.
Then, a modest Class D sub amp is preferred by most as they are very efficient with power and do a nice job for bass, yet don't kill your electrical system with excess current pull. Sub amps have Low Pass Filter Crossovers, (LPF) to block highs and mids to the sub.
Also, what vehicle are you planning to do all this for? (Make, year & model)
There are many options that will work out just fine. Just remember, low budget gear is a waste of time and money. Buy well known brands that have been around and deliver what they promise. There are many off brands out there to fool the inexperienced shopper. We can help you avoid them.
Swez
PS No need for doupts here Thomas... we have a very good team of techs to walk you through all phases of this project and do it well the 1st time.
swaroopvg on 06/9/2006 16:01:47
Thanx for ur fast reply....
i am just a student ,19 ...yrs old... doing electrnics engineerin here in india..who is obessed is ausio sys. i am planning 2 install this in my room not in a car...
i cant go 4 expensive ones as the means r limited...i managed 2 remove 2 spekers from an old Pioneer music system...which i plan 2 use as midrange n tweeter....so the specification is 5 watt 4 ohms
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"
swez on 06/9/2006 20:44:06
Ahhhh, very good supplimentary details there friend. I see your game plan more clearly now. College student, few Ruppies on hand and buildiing your own gear. Good for you!
A 5 watt per channel amplifier is pretty modest for anything but a compact, mini-system. If you build a subwoofer amp to go with this system, 50 watts (RMS) is more than adequate for a single 8-10" woofer.
If you wish, you can build all Class A/B amplifer circuits. They can be full range too. Just use passive filter networks to block/pass the frequencies desired for each speaker used.
FYI: This is primarily a Mobile Audio site. Some of us dabble in other areas too. But, our primary focus is on Mobile products, installs and troubleshooting. So, if you don't get adequate info here, it because we focus on mostly Mobile Audio.
Quote: "Can i connect the subwoofer thru the amplifier which takes the input from the crossover "WOOFER OUT PUT SOCKET"
Yes, if the crossover has a sub output filter feature, you can use that in place of passive crossovers after amplification. This is a more efficient way of doing filtering then using "passives" after amplification.
Does this crossover have variable filtering ranges or is it a fixed filter network?
Swez
swaroopvg on 06/9/2006 22:52:07
i still have a question sir.......plz help me withh the wiring..
take the signal from the "headphone socket" ... into a tiny 7 watt amplifier (powered with IC 810..abs no distortion when i used that )... from the amplifier to the network crossover.... n from the crossover ....the midrange n the tweeters r directly connected... ( as they receive the signal from the crossover which is already amplified ( the tiney 7 watt amplifier...) )
now the subwoofer.... the signal which is taken from crossover is then fed into a 50 watt amplifier (as u jave suggested ... will that be enuff for a 200 watt sub if i am not planning to run it at max volume) n then into the actualy sub....
is this wriring fine
swez on 06/10/2006 09:31:40
Depends on the type of crossover you have in mind.
If this is an active crossover, (with preamp) it would be good if you feed your source signal into the crossover first, then split mid/highs from crossover to IC 810 amp and mid/tweets. Then, sub out from crossover to sub amp to subwoofer is logical too.
It is generally more efficient to use an active crossover network, after the signal source, but before amplification. The key to making this work well, is good inpedence matching from the source to crossover input and crossover output to amplifier inputs.
Swez
..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
--
Replies (5)
swez on 06/9/2006 15:38:42
Glad you came for advice before you make any purchases. There are several options to consider here and with some budget figures, we can help you pull the plan together.
1. What kind of budget are you working with?
2. The mid/high speakers mentioned, are they only 5 watts?
3. Are you planning to use a factory or Aftermarket player? (details pls)
4. Are you sure you want dual 10's? A single strong 10 or 12 will easily handle this wattage range and be cheaper and smaller too
Most folks use a 2 or 4 channel amp to power front and rear speakers. Most amps have adjustable High Pass Crossovers filters, (HP filters) to block out lows to small speakers that cannot take much power in lower frequency range.
Then, a modest Class D sub amp is preferred by most as they are very efficient with power and do a nice job for bass, yet don't kill your electrical system with excess current pull. Sub amps have Low Pass Filter Crossovers, (LPF) to block highs and mids to the sub.
Also, what vehicle are you planning to do all this for? (Make, year & model)
There are many options that will work out just fine. Just remember, low budget gear is a waste of time and money. Buy well known brands that have been around and deliver what they promise. There are many off brands out there to fool the inexperienced shopper. We can help you avoid them.
Swez
PS No need for doupts here Thomas... we have a very good team of techs to walk you through all phases of this project and do it well the 1st time.
swaroopvg on 06/9/2006 16:01:47
Thanx for ur fast reply....
i am just a student ,19 ...yrs old... doing electrnics engineerin here in india..who is obessed is ausio sys. i am planning 2 install this in my room not in a car...
i cant go 4 expensive ones as the means r limited...i managed 2 remove 2 spekers from an old Pioneer music system...which i plan 2 use as midrange n tweeter....so the specification is 5 watt 4 ohms
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"
swez on 06/9/2006 20:44:06
Ahhhh, very good supplimentary details there friend. I see your game plan more clearly now. College student, few Ruppies on hand and buildiing your own gear. Good for you!
A 5 watt per channel amplifier is pretty modest for anything but a compact, mini-system. If you build a subwoofer amp to go with this system, 50 watts (RMS) is more than adequate for a single 8-10" woofer.
If you wish, you can build all Class A/B amplifer circuits. They can be full range too. Just use passive filter networks to block/pass the frequencies desired for each speaker used.
FYI: This is primarily a Mobile Audio site. Some of us dabble in other areas too. But, our primary focus is on Mobile products, installs and troubleshooting. So, if you don't get adequate info here, it because we focus on mostly Mobile Audio.
Quote: "Can i connect the subwoofer thru the amplifier which takes the input from the crossover "WOOFER OUT PUT SOCKET"
Yes, if the crossover has a sub output filter feature, you can use that in place of passive crossovers after amplification. This is a more efficient way of doing filtering then using "passives" after amplification.
Does this crossover have variable filtering ranges or is it a fixed filter network?
Swez
swaroopvg on 06/9/2006 22:52:07
i still have a question sir.......plz help me withh the wiring..
take the signal from the "headphone socket" ... into a tiny 7 watt amplifier (powered with IC 810..abs no distortion when i used that )... from the amplifier to the network crossover.... n from the crossover ....the midrange n the tweeters r directly connected... ( as they receive the signal from the crossover which is already amplified ( the tiney 7 watt amplifier...) )
now the subwoofer.... the signal which is taken from crossover is then fed into a 50 watt amplifier (as u jave suggested ... will that be enuff for a 200 watt sub if i am not planning to run it at max volume) n then into the actualy sub....
is this wriring fine
swez on 06/10/2006 09:31:40
Depends on the type of crossover you have in mind.
If this is an active crossover, (with preamp) it would be good if you feed your source signal into the crossover first, then split mid/highs from crossover to IC 810 amp and mid/tweets. Then, sub out from crossover to sub amp to subwoofer is logical too.
It is generally more efficient to use an active crossover network, after the signal source, but before amplification. The key to making this work well, is good inpedence matching from the source to crossover input and crossover output to amplifier inputs.
Swez
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