Amp power

[Alfi76]

Hello guys

newby here, so please be gentle. I just bought a pair of speaker which according to the manufacturer can be used with amplifiers in the 25-100W range. My speaker are 6ohms and I just learned today that power delivery from the amp change according to the speakers impedance.
My amp specs are: 35 +35W, 4ohms , 1KHz and THD 0.7%. Using an online calculator i figured out that it will give 23W to my 6ohms speakers.
My questions is:
does the 25-100W range mean that the speaker will be louder with some amps and quieter with others?
Are speakers not usually rated for optimal performance?
Is 23W enough to get some decent sound (please try to ignore all other factors which affect quality)? Will 23W still be enough even if the speakers should be connected to amps between 25-100W?
Thanks for your help.

 

[gellert]

One of the thing it depends on is the effiency/ sensitivity of the speaker

 

[Alfi76]

One of the thing it depends on is the effiency/ sensitivity of the speaker

not really sure what it means but there you go

Sensitivity (2.83V/1m) [dB]: 84.5 dB

 

[12th Monkey]

An amp with too much power is safer than one with too little, but you are only likely to cause damage if you play at very high volume levels. Power doesn't affect how accurately an amp reproduces sound, but it does enable better control of the speakers' drive units. Gain tells you more about loudness than outright power.

 

[Gray]

You've bought the speakers and you've got the amp.....have you tried playing music?

 

[skinnypuppy71]

Amp and speaker make and model would be a good piece of information if you want to know more about there capabilities from the forum.

 

[nopiano]

My amp specs are: 35 +35W, 4ohms , 1KHz and THD 0.7%.

If that’s an accurate quote then it’s scarcely Hifi. Do tell us what it is. I’m guessing a mini system.

 

[gasolin]

35 +35W, 4ohms , 1KHz and THD 0.7%. you can only use for knowing that the amp don't have much power

If it where 2x25 watt from 20-20khz and THD 0.7% in 8 ohm it would have much more power

Rated power at 1 khz is just to make you think it has alot of power since a test tone at 1khz can be alot louder than music from 20-20khz

Could be the amp only has 2x25 watt from 20-20khz in 4 ohm with under 1% thd

 

[RoA]

Is it a valve or transistor amplifier?

I wouldn't get too hung up on just power.

23 Watts is plenty for 'decent' listening if you are not a head banger though it could bang heads if your speakers are super efficient. Most of use use a couple or so Watts in normal, domestic settings maybe a few more if higher levels are asked for.

All depends on the quality of the Watts. Whilst the figures you quoted may not seem impressive on paper, if it's a good valve amplifier with heavy duty power supply and good voltage swing you could be in for a treat. Same for a 'low' powered Class A transistor device. - On the other hand if it is a c***** little SS amplifier ...

 

[nopiano]

Is it a valve or transistor amplifier?

I wouldn't get too hung up on just power.

23 Watts is plenty for 'decent' listening if you are not a head banger though it could bang heads if your speakers are super efficient. Most of use use a couple or so Watts in normal, domestic settings maybe a few more if higher levels are asked for.

All depends on the quality of the Watts. Whilst the figures you quoted may not seem impressive on paper, if it's a good valve amplifier with heavy duty power supply and good voltage swing you could be in for a treat. Same for a 'low' powered Class A transistor device. - On the other hand if it is a c***** little SS amplifier ...

My money is on a transistor mini system!

 

[Bumrah]

Hello guys

newby here, so please be gentle. I just bought a pair of speaker which according to the manufacturer can be used with amplifiers in the 25-100W range. My speaker are 6ohms and I just learned today that power delivery from the amp change according to the speakers impedance.
My amp specs are: 35 +35W, 4ohms , 1KHz and THD 0.7%. Using an online calculator i figured out that it will give 23W to my 6ohms speakers.
My questions is:
does the 25-100W range mean that the speaker will be louder with some amps and quieter with others?
Are speakers not usually rated for optimal performance?
Is 23W enough to get some decent sound (please try to ignore all other factors which affect quality)? Will 23W still be enough even if the speakers should be connected to amps between 25-100W?
Thanks for your help.

You can't really say "ignore other factors which affect quality) as power alone does not dictate sound quality. It is how the power is delivered, reserve power etc. The first watt can be the most important one.

 

[nopiano]

You can't really say "ignore other factors which affect quality) as power alone does not dictate sound quality. It is how the power is delivered, reserve power etc. The first watt can be the most important one.

Good point. It’s almost the complete opposite - ignore the power and concentrate on all the factors that actually affect SQ!

 

[amormusic]

Is it a valve or transistor amplifier?

I wouldn't get too hung up on just power.

23 Watts is plenty for 'decent' listening if you are not a head banger though it could bang heads if your speakers are super efficient. Most of use use a couple or so Watts in normal, domestic settings maybe a few more if higher levels are asked for.

All depends on the quality of the Watts. Whilst the figures you quoted may not seem impressive on paper, if it's a good valve amplifier with heavy duty power supply and good voltage swing you could be in for a treat. Same for a 'low' powered Class A transistor device. - On the other hand if it is a c***** little SS amplifier ...

This.

Mine is 23W, class A, but it goes plenty loud enough. I could not get near full volume before it would become uncomfortable.

23W is certainly plenty enough W for me.

 

[plastic penguin]

Hello guys

newby here, so please be gentle. I just bought a pair of speaker which according to the manufacturer can be used with amplifiers in the 25-100W range. My speaker are 6ohms and I just learned today that power delivery from the amp change according to the speakers impedance.
My amp specs are: 35 +35W, 4ohms , 1KHz and THD 0.7%. Using an online calculator i figured out that it will give 23W to my 6ohms speakers.
My questions is:
does the 25-100W range mean that the speaker will be louder with some amps and quieter with others?
Are speakers not usually rated for optimal performance?
Is 23W enough to get some decent sound (please try to ignore all other factors which affect quality)? Will 23W still be enough even if the speakers should be connected to amps between 25-100W?
Thanks for your help.

It's always better to have amp with more power. A underpowered amp can make the speakers 'clip' or distort. Continued clipping can damage the speakers. Not cool.
It would help to know what amp and speakers you own.

 

[gasolin]

25 watt what is not much especially when listen to either super dynamic music or bass heavy music

 

[plastic penguin]

25 watt what is not much especially when listen to either super dynamic music or bass heavy music

Depends how the amp delivers those Watts. Some valve amps are low powered. Granted 25 watts aren't the best choice for house parties, but every day listening it should be fine. Again, that'll be down to how the amp put those watts down

 

[Al ears]

25 watt what is not much especially when listen to either super dynamic music or bass heavy music

It would depend entirely on how your system is constructed and the efficiency of your speakers. My old Tom Evans Audio Linear A only had 23wpc but with the right speakers you wouldn't need any more....

 

[gasolin]

assuming the speaker sensitivity is normal lets say under 88db

 

[Al ears]

assuming the speaker sensitivity is normal lest say under 88db

there is no normal in reality. Plenty of floorstanders have greater than 88db

 

[gasolin]

there is no normal in reality. Plenty of floorstanders have greater than 88db

find me more than a couple that is above 88

OP has speakers a sensitivity (2.83V/1m) [dB] of 84.5 dB

 

[Al ears]

Do some research and you will find a good few.
The OP obviously needs to change his speakers or his amp for optimal results ...., The speakers are drivable but pretty insensitive and the amp he has will struggle

 

[gasolin]

Do some research and you will find a good few.
The OP obviously needs to change his speakers ...., which are drivable but pretty insensitive

Does need to or want to change speakers ?

 

[Al ears]

Does need to or want to change speakers ?

He has a poorly matched system, what he does to it is up to him I guess

 

[12th Monkey]

find me more than one that is above 88

My last three pairs all were/are - Tannoy Revolution R3, MA GR20 and the Spendor D7s. Not too hard a challenge, I'm afraid.

 

[gellert]

Almost Any Klipsch speaker 🙂