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appended answer 221794 as supplemental
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Dave Tweed
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As per our design requirement we need to drive PA (public addressing ) speakers whose power rating is only 6W but impedance is 1.3k/3.3k.

So what should be the amplifier rating ?

I want use an audio power amplifier rated for 6W but most of the datasheets for such ICs show this wattage with only 4 Ohm or 8 Ohm speakers.

No datasheet mentions high impedance speakers.

PA speakers are generally mentioned in connection with 100V systems.

Will an amplifier rated for 6W at 8 Ohm or 4 Ohm drive a high impedance speaker?

Length of cable might be 20meters .


Can i use a 70 v, 10w line matching transformer and connect secondary to audio ampifier and primery to pa speakers (in reverse direction ) whose impendence is high. In line matching transformer seconary is named as 4ohm and 8ohm .So if i choose a power audio amplifier for 4 ohm or 8 ohm and connect it to secondary then at primary itself will come at 70v rms and then it may drive our PA speakers whose impendence is high and made for 100v line ?

plz make me correct if i,m missing somthing.

As per our design requirement we need to drive PA (public addressing ) speakers whose power rating is only 6W but impedance is 1.3k/3.3k.

So what should be the amplifier rating ?

I want use an audio power amplifier rated for 6W but most of the datasheets for such ICs show this wattage with only 4 Ohm or 8 Ohm speakers.

No datasheet mentions high impedance speakers.

PA speakers are generally mentioned in connection with 100V systems.

Will an amplifier rated for 6W at 8 Ohm or 4 Ohm drive a high impedance speaker?

Length of cable might be 20meters .

As per our design requirement we need to drive PA (public addressing ) speakers whose power rating is only 6W but impedance is 1.3k/3.3k.

So what should be the amplifier rating ?

I want use an audio power amplifier rated for 6W but most of the datasheets for such ICs show this wattage with only 4 Ohm or 8 Ohm speakers.

No datasheet mentions high impedance speakers.

PA speakers are generally mentioned in connection with 100V systems.

Will an amplifier rated for 6W at 8 Ohm or 4 Ohm drive a high impedance speaker?

Length of cable might be 20meters .


Can i use a 70 v, 10w line matching transformer and connect secondary to audio ampifier and primery to pa speakers (in reverse direction ) whose impendence is high. In line matching transformer seconary is named as 4ohm and 8ohm .So if i choose a power audio amplifier for 4 ohm or 8 ohm and connect it to secondary then at primary itself will come at 70v rms and then it may drive our PA speakers whose impendence is high and made for 100v line ?

plz make me correct if i,m missing somthing.

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JRE
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driving pa speakers which have How to drive high impendence 1.3k and wattage is 6Wimpedance PA speakers

Actually asAs per our design requirement we wantneed to drive PA (public addressing ) speakers whose power rating is only 6W but impedance is 1.3k/3.3k.high impedance speakers i mean to say.so

So what should be the amplifier rating ? i

I want use somean audio power amplifier whose rating will berated for 6W but most of datasheet showingthe datasheets for such ICs show this wattage with only 4 ohmOhm or 8ohm8 Ohm speakers.but no ic is talking about

No datasheet mentions high Impedance impedance speakers.PA

PA speakers are generally talking about 100v line mentioned in connection with 100V systems.will these

Will an amplifier whose rating is 6wrated for 6W at 8 ohmOhm or 4ohm will4 Ohm drive thisa high impedance speakersspeaker? length

Length of cable might be 20mtr20meters .

driving pa speakers which have high impendence 1.3k and wattage is 6W

Actually as per our design requirement we want to drive PA (public addressing ) speakers whose power rating is only 6W but impedance is 1.3k/3.3k.high impedance speakers i mean to say.so what should be the amplifier rating ? i want use some audio power amplifier whose rating will be 6W but most of datasheet showing this wattage with only 4 ohm or 8ohm.but no ic is talking about high Impedance .PA speakers generally talking about 100v line .will these amplifier whose rating is 6w at 8 ohm or 4ohm will drive this high impedance speakers? length of cable might be 20mtr .

How to drive high impedance PA speakers

As per our design requirement we need to drive PA (public addressing ) speakers whose power rating is only 6W but impedance is 1.3k/3.3k.

So what should be the amplifier rating ?

I want use an audio power amplifier rated for 6W but most of the datasheets for such ICs show this wattage with only 4 Ohm or 8 Ohm speakers.

No datasheet mentions high impedance speakers.

PA speakers are generally mentioned in connection with 100V systems.

Will an amplifier rated for 6W at 8 Ohm or 4 Ohm drive a high impedance speaker?

Length of cable might be 20meters .

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driving pa speakers which have high impendence 1.3k and wattage is 6W

Actually as per our design requirement we want to drive PA (public addressing ) speakers whose power rating is only 6W but impedance is 1.3k/3.3k.high impedance speakers i mean to say.so what should be the amplifier rating ? i want use some audio power amplifier whose rating will be 6W but most of datasheet showing this wattage with only 4 ohm or 8ohm.but no ic is talking about high Impedance .PA speakers generally talking about 100v line .will these amplifier whose rating is 6w at 8 ohm or 4ohm will drive this high impedance speakers? length of cable might be 20mtr .