S9+ powering 250 ohm headphones

[The HopelessGamer™]

Why can my phone (Samsung S9+) power my 250 ohm DT990s with identical volume to my other pair of DT770s 32ohm?

I thought that 250Ohm headphones would have volume issues when being powered by devices that are not able to put out 250ohm?

I have been told that 250 ohm headphones would have very low volume when being powered by devices that cannot put out the power required to drive them. Yet the volume is identical to 32 ohm headphones.... I am very confused.

[iceman1980]

The phone must be able to drive enough power through the jack. To drive jack at equal levels, the 250 Ohm headphones will take far more volume before they blow themselves out.

[chiefputsilao✖️ping]

32 and 250 are not equal, the other device requires more power.

[iceman1980]

Originally posted by chiefputsilao✖️ping:

32 and 250 are not equal, the other device requires more power.

I said driving at equal levels. "Perceived volume" This is the:
https://source.android.com/devices/accessories/headset/jack-headset-spec

You will not be able to drive the 250's very high though.

[The HopelessGamer™]

Originally posted by Tarantula Hawk:

Originally posted by chiefputsilao✖️ping:

32 and 250 are not equal, the other device requires more power.

I said driving at equal levels. "Perceived volume" This is the:
https://source.android.com/devices/accessories/headset/jack-headset-spec

You will not be able to drive the 250's very high though.

Well testing both headphones on the same phone both on max volume, they volume almost identical. So i am curious as to why this is...

[Eldin]

Maybe max volume is limited by Android for safety reasons.
Some headphones can be louder than when you only increase volume to maximum on your phone.

Try playing around with Viper4Android[labs.xda-developers.com] and see can you make any difference.

Increase output gain, playback gain and play around with other options.

[iceman1980]

Originally posted by Eldin:

Maybe max volume is limited by Android for safety reasons.
Some headphones can be louder than when you only increase volume to maximum on your phone.

Try playing around with Viper4Android[labs.xda-developers.com] and see can you make any difference.

Increase output gain, playback gain and play around with other options.

I'd recommend you be careful with pumping more power into the 3.5mm jack you can damage the phone

[The HopelessGamer™]

Originally posted by Tarantula Hawk:

Originally posted by Eldin:

Maybe max volume is limited by Android for safety reasons.
Some headphones can be louder than when you only increase volume to maximum on your phone.

Try playing around with Viper4Android[labs.xda-developers.com] and see can you make any difference.

Increase output gain, playback gain and play around with other options.

I'd recommend you be careful with pumping more power into the 3.5mm jack you can damage the phone

How would you be pumping power INTO a jack when power is coming OUT of the jack to power the headphones? This may or may not be a silly question....

[iceman1980]

Originally posted by The HopelessGamer™:

Originally posted by Tarantula Hawk:

I'd recommend you be careful with pumping more power into the 3.5mm jack you can damage the phone

How would you be pumping it INTO when power is coming OUT of the phone to power the headphones?

The phone pumps power into the headphones to power them? Gain and other options increase the amplitude of the wave? Therefore increases the power input?

[The HopelessGamer™]

Originally posted by Tarantula Hawk:

Originally posted by The HopelessGamer™:

How would you be pumping it INTO when power is coming OUT of the phone to power the headphones?

The phone pumps power into the headphones to power them? Gain and other options increase the amplitude of the wave? Therefore increases the power input?

So rather then input, you mean through? Putting too much power through the jack can damage it?

[iceman1980]

Originally posted by The HopelessGamer™:

Originally posted by Tarantula Hawk:

The phone pumps power into the headphones to power them? Gain and other options increase the amplitude of the wave? Therefore increases the power input?

So rather then input, you mean through? Putting too much power through the jack can damage it?

Input is relative to the device.

Your output of your phone is the input to the headphones the power comes from the phone into the jack to power the headphones? Make sense now?

[Phone 3.5mm Female jack] -> [Your headphones 3.5mm male jack] -> Receives power from phone

[The HopelessGamer™]

Originally posted by Tarantula Hawk:

Originally posted by The HopelessGamer™:

So rather then input, you mean through? Putting too much power through the jack can damage it?

Input is relative to the device.

Your output of your phone is the input to the headphones the power comes from the phone into the jack to power the headphones? Make sense now?

Yep. Certainly does. Thank you.

[Eldin]

Originally posted by Tarantula Hawk:

Originally posted by Eldin:

Maybe max volume is limited by Android for safety reasons.
Some headphones can be louder than when you only increase volume to maximum on your phone.

Try playing around with Viper4Android[labs.xda-developers.com] and see can you make any difference.

Increase output gain, playback gain and play around with other options.

I'd recommend you be careful with pumping more power into the 3.5mm jack you can damage the phone

I've been playing around with Viper4Android for years and never damaged anything.
But from my experience, you're more likely to damage headphones/earphones than phone itself if you go crazy with the options.

Usually, when you set some options to high, you'll start hearing crunching sounds from headphones and other abnormal sounds.

[iceman1980]

Originally posted by Eldin:

Originally posted by Tarantula Hawk:

I'd recommend you be careful with pumping more power into the 3.5mm jack you can damage the phone

I've been playing around with Viper4Android for years and never damaged anything.
But from my experience, you're more likely to damage headphones/earphones than phone itself if you go crazy with the options.

Usually, when you set some options to high, you'll start hearing crunching sounds from headphones and other abnormal sounds.

Oh I'm not denying it probably works I've never used it myself. But if you try to pump too much power into the headphones the DAC might not like it very much.