what mean by audio power amplifier 10watt output?

motbuddy · 03:14 AM

hi,

a little confusing here.newbie to pow. amp. When the kits says that it has 10watt output for a 8ohm load. is it mean that the speaker that i choose to connect to must have a nominal power of 10watt? if i use a higher watt speaker? what will happen?

If i delivered 10 watts to a 80 watt speaker, is it the same as delivered 10 watts to a 200 watt speaker?

thank you.

cbdb · 04:39 AM

The speaker rating (200 watts) is the maximum power it can handle, thats all it means and dosnt really tell you much. Whats more important (especially for a low power amp of 10 watts) its the speaker efficiency which tells you how loud the speaker is for a certain power.

Quote:

If i delivered 10 watts to a 80 watt speaker, is it the same as delivered 10 watts to a 200 watt speaker?

Yes if they both have the same efficiency ( eg 90dbSPL/watt )

10 watts into a 96dbSPL/watt efficient spkr will give you the same loudness as 20 watts into 90dbSPL/watt spkr. (every 6db increase in efficiency halfs the power needed.)

motbuddy · 12th March 2010, 04:50 AM

if the circuit mention connect to a 8ohm speaker. Can i use a 4ohm speaker?

motbuddy · 12th March 2010, 06:44 AM

??

pyromaniac_ · 12th March 2010, 07:28 AM

No, the poweramp will burn if you use speakers with lower impedance than it is suppose to be used with. Higher impedance could work (the amp won't burn), but the output power will be reduced.

motbuddy · 12th March 2010, 07:44 AM

hi,
this is the kit that i bought recently. It didn't mention any spec of the speaker that should i connect. So what spec of the speaker i should choose?
New Page 1

thanks,

pyromaniac_ · 12th March 2010, 08:04 AM

Nice kit! Any speaker at 8 ohm (not less) and 40 W (or more) should work.

motbuddy · 12th March 2010, 08:08 AM

Before this, i simply try it using this PRESTIGE speaker.
PS-2697 6x9" 3-way speaker system.
Max input power is 200watt
sensitivity: 92dB
Impedance: 4 ohms.

it works. But this should be a 4 ohm speaker right? doubt on this part.

thanks.

motbuddy · 12th March 2010, 08:57 AM

any idea?

pyromaniac_ · 12th March 2010, 10:11 AM

As I said before, you can't use speakers with an impedance less than 8 ohm!

12th March 2010, 03:06 AM	#1
motbuddy diyAudio Member Join Date: Jan 2010	what mean by audio power amplifier 10watt output? hi, a little confusing here.newbie to pow. amp. When the kits says that it has 10watt output for a 8ohm load. is it mean that the speaker that i choose to connect to must have a nominal power of 10watt? if i use a higher watt speaker? what will happen? If i delivered 10 watts to a 80 watt speaker, is it the same as delivered 10 watts to a 200 watt speaker? thank you. Last edited by motbuddy; 12th March 2010 at 03:14 AM.

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12th March 2010, 04:50 AM	#3
motbuddy diyAudio Member Join Date: Jan 2010	if the circuit mention connect to a 8ohm speaker. Can i use a 4ohm speaker?

12th March 2010, 06:44 AM	#4
motbuddy diyAudio Member Join Date: Jan 2010	??

12th March 2010, 07:28 AM	#5
pyromaniac_ diyAudio Member Join Date: Nov 2008 Location: Gothenburg	No, the poweramp will burn if you use speakers with lower impedance than it is suppose to be used with. Higher impedance could work (the amp won't burn), but the output power will be reduced.

12th March 2010, 07:44 AM	#6
motbuddy diyAudio Member Join Date: Jan 2010	hi, this is the kit that i bought recently. It didn't mention any spec of the speaker that should i connect. So what spec of the speaker i should choose? New Page 1 thanks,

12th March 2010, 08:04 AM	#7
pyromaniac_ diyAudio Member Join Date: Nov 2008 Location: Gothenburg	Nice kit! Any speaker at 8 ohm (not less) and 40 W (or more) should work.

12th March 2010, 08:08 AM	#8
motbuddy diyAudio Member Join Date: Jan 2010	Before this, i simply try it using this PRESTIGE speaker. PS-2697 6x9" 3-way speaker system. Max input power is 200watt sensitivity: 92dB Impedance: 4 ohms. it works. But this should be a 4 ohm speaker right? doubt on this part. thanks.

12th March 2010, 08:57 AM	#9
motbuddy diyAudio Member Join Date: Jan 2010	any idea?

12th March 2010, 10:11 AM	#10
pyromaniac_ diyAudio Member Join Date: Nov 2008 Location: Gothenburg	As I said before, you can't use speakers with an impedance less than 8 ohm!

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