27-08-2019, 12:22 AM
If you look at figure 4 and 6 you will be able to see that the distortion lower with an 8 ohm load compared to a 4 ohm load.
It could be projected down to a higher impedance that the amp will see with a headphone load on it.
For what I bought the set for the distortion figure at 5W is easily good enough.
The headphone resister is quite a bit more than 8 ohms so the figure is a guess with the headphone output being used.
I just made a 3.5mm stereo plug up with 1/4 inch jacks on the other ends with 33 ohm resistors hidden in them.
The amp inputs are 1 meg.
If the amp had been of a lower spec I would have gone in and tapped the audio beck up the audio chain so a look inside can wait for the cassette belts to stretch.
It could be projected down to a higher impedance that the amp will see with a headphone load on it.
For what I bought the set for the distortion figure at 5W is easily good enough.
The headphone resister is quite a bit more than 8 ohms so the figure is a guess with the headphone output being used.
I just made a 3.5mm stereo plug up with 1/4 inch jacks on the other ends with 33 ohm resistors hidden in them.
The amp inputs are 1 meg.
If the amp had been of a lower spec I would have gone in and tapped the audio beck up the audio chain so a look inside can wait for the cassette belts to stretch.
