It is usually a given of the Amp of your choice.
There are two ways to go:
Low DF as common with Tube amps, tube like (with output transformers), like mcIntosh etc. Those have a different sound signature.
High DF, common to SS high power amps, and they can go anywhere from 150 and up.
PASS LABS is at 150
Emotiva is at 400
Luxman is at 700
Class D tend to go really high with DF to over 4000!
When you try to understand DF with a power Amp, try to look at a car's engine:
While the Amps' power is the HP of the engine, the
DF equivalent is the torque.
DF is of how much of control the Amp has over the speakers.
So in this perspective, the higher the better. I do not think that the spec. of digital amplifications of 4000 is actual. I did't dig in, but the figure is just too good to be right.
DF can be achieved by a meticulous design of the output power stage,
Or with a feedback.
If it's feedback, it's not as good.
In the past, I used some Rotel amp with high DF (feedback) and is sounded bad.
There are two ways to go:
Low DF as common with Tube amps, tube like (with output transformers), like mcIntosh etc. Those have a different sound signature.
High DF, common to SS high power amps, and they can go anywhere from 150 and up.
PASS LABS is at 150
Emotiva is at 400
Luxman is at 700
Class D tend to go really high with DF to over 4000!
When you try to understand DF with a power Amp, try to look at a car's engine:
While the Amps' power is the HP of the engine, the
DF equivalent is the torque.
DF is of how much of control the Amp has over the speakers.
So in this perspective, the higher the better. I do not think that the spec. of digital amplifications of 4000 is actual. I did't dig in, but the figure is just too good to be right.
DF can be achieved by a meticulous design of the output power stage,
Or with a feedback.
If it's feedback, it's not as good.
In the past, I used some Rotel amp with high DF (feedback) and is sounded bad.