Hi Mark,
Yup, and driving headphones is much lower than 2K. The 4556 is characterized for 150 ohm loads. That means it will drive a bipolar transistor buffer stage better as well.
Many rail to rail op amps were designed to deal with the lower voltages microcontrollers were using. Audio wasn't foremost in their minds, although some are okay if you don't mind having your peaks lopped off.
Yup, and driving headphones is much lower than 2K. The 4556 is characterized for 150 ohm loads. That means it will drive a bipolar transistor buffer stage better as well.
Many rail to rail op amps were designed to deal with the lower voltages microcontrollers were using. Audio wasn't foremost in their minds, although some are okay if you don't mind having your peaks lopped off.
Point is...4558 is a mediocre choice for a new build for a pre amp in audio use.
There are better choices available, and the price difference is negligible.
Ready made boards, just hook up and chassis mount, are less than $10, with a choice of chips and suitability.
Bearing that in mind, the discussion as per original post must end,
let the persons in charge decide about that.
There are better choices available, and the price difference is negligible.
Ready made boards, just hook up and chassis mount, are less than $10, with a choice of chips and suitability.
Bearing that in mind, the discussion as per original post must end,
let the persons in charge decide about that.
Well, I have read enough here to convince me not to use 741 op amps for hifi audio. Not that I was planning on doing so, just curious about the practical difference with a 4558. I use the 741 in guitar overdrive circuits, tubescreamer type, and find that the 741 sounds better in that role than a 4558. Probably because of it's hifi defects, notably low slew rate.
Hi gijser,
Well, yes! You are creating tone, or sound. If a device does make that "sound" you're going for - use it!
That's why we use tubes, and overdrive them sometimes. It is a particular sound we are after. Same for carbon composition resistors.
Hi NareshBrd,
Agreed.
But closing a thread is done either after a request by the OP, or through discussion between moderators.
Well, yes! You are creating tone, or sound. If a device does make that "sound" you're going for - use it!
That's why we use tubes, and overdrive them sometimes. It is a particular sound we are after. Same for carbon composition resistors.
Hi NareshBrd,
Agreed.
But closing a thread is done either after a request by the OP, or through discussion between moderators.