Question for an electrician

[ImGodz]

Hello, I am trying to figure out if my amp can power the headphones Dt 880 (600 ohms), my amp is an sherwood rv-5030r, am I wrong if by looking at this shema it seems like 80w goes to each headphone cup.

Thanks!

[kelvinhall05]

I would assume it can, but I'm really not sure why you're trying to figure it out from looking at a very uninformative schematic.

 

I can't make sense of even basic audio shit but maybe this manual will help: https://www.hifiengine.com/manual_library/sherwood/rv-5030r.shtml

[Lord Vile]

59 minutes ago, ImGodz said:

Hello, I am trying to figure out if my amp can power the headphones Dt 880 (600 ohms), my amp is an sherwood rv-5030r, am I wrong if by looking at this shema it seems like 80w goes to each headphone cup.

Thanks!

 

That tells you nothing about what it can drive it's just a layout without an info pertaining to what you're after. You might be able to work it out with the wattage if you know the voltage or current the headphones are taking but other than that it's no use. 

[ImGodz]

2 minutes ago, kelvinhall05 said:

I would assume it can, but I'm really not sure why you're trying to figure it out from looking at a very uninformative schematic.

 

I can't make sense of even basic audio shit but maybe this manual will help: https://www.hifiengine.com/manual_library/sherwood/rv-5030r.shtml

Yes, This a page from this manual, but I still don't understand if it would work when I look at the specs haha.

[Letgomyleghoe]

looks like the amp should be just enough, take what i say with a grain of salt, but i think it should work fine

[LogicalDrm]

-> Moved to Hobby Electronics

[akio123008]

 

12 hours ago, Lord Vile said:

That tells you nothing about what it can drive it's just a layout without an info pertaining to what you're after. You might be able to work it out with the wattage if you know the voltage or current the headphones are taking but other than that it's no use. 

We know the impedance of the headphones and can compute the output voltage (roughly) of the amplifier to get a pretty good estimate:

 

80W into an 8ohm impedance (according to the spec sheet) gives an output voltage of 25.29V (as P = U^2/R)

 

25.29V into the 600ohm headset impedance gives 640/600 = 1.066W of power. Plenty of power (probably).

 

Anyway just give it a shot, the impedance of the headphones is much higher than the 8 ohm minimum of the amp so nothing can go wrong.

 

[Lord Vile]

3 hours ago, akio123008 said:

 

We know the impedance of the headphones and can compute the output voltage (roughly) of the amplifier to get a pretty good estimate:

 

80W into an 8ohm impedance (according to the spec sheet) gives an output voltage of 25.29V (as P = U^2/R)

 

25.29V into the 600ohm headset impedance gives 640/600 = 1.066W of power. Plenty of power (probably).

 

Anyway just give it a shot, the impedance of the headphones is much higher than the 8 ohm minimum of the amp so nothing can go wrong.

 

25V for a set of headphones seems a bit off. Considering the 3.5mm spec is around 1

[akio123008]

1 hour ago, Lord Vile said:

25V for a set of headphones seems a bit off. Considering the 3.5mm spec is around 1

Well yes but that's assuming you've cranked it all the way up on that amp, which is actually designed to drive regular speakers. 

 

Also these headphones have a rather high impedance of 600 ohms, most headphones have a much lower value.

[ImGodz]

17 hours ago, akio123008 said:

 

We know the impedance of the headphones and can compute the output voltage (roughly) of the amplifier to get a pretty good estimate:

 

80W into an 8ohm impedance (according to the spec sheet) gives an output voltage of 25.29V (as P = U^2/R)

 

25.29V into the 600ohm headset impedance gives 640/600 = 1.066W of power. Plenty of power (probably).

 

Anyway just give it a shot, the impedance of the headphones is much higher than the 8 ohm minimum of the amp so nothing can go wrong.

 

Thank you so much Akio, your answer is really helpfull!

[Unimportant]

@ImGodz According to the service manual there's an additional 270 ohm in series with the headphone output.

[butre]

it'll drive it, but it's not going to be pretty.  that's an AV receiver, not a headphone amp.