tony sayer wrote:
In article , TonyL
scribeth thus
David Looser wrote:

The odds that they will be quads is about zero, since headphone
drivers are typically used in pairs.

Agreed. I know of no quad op-amps that will do the job. I think Tony
should accept that he will need a separate h/phone amp chip.

All comments noted. Thanks.

The *only* problem with the LM324 in this application is the
crossover distortion. It drives low-z headphones fine. So, I'll try
plugging in a TL074 and see what happens before looking to a purpose
designed hadphone driver.



Would one of those SSM -whatever -there -called series line drivers do
this quite well?..


Don't know. But if I can't use the spare section on the existing quad op-amp
to drive the headphone then I may as well go for a purpose designed heaphone
amp as suggested by others in here, or add a bipolar complementary pair.