If I just use a DAC, do I need a Pre-amp?


I recently asked a Facebook group this same question.  I should have asked audio forum folks first.  Sorry if there is overlap.

If I only use DACs for my amp, why do I need a Pre-amp?
I have the opportunity to get a nice Fisher 400CX-2...but why?

I have volume control on my Fiio M15, and volume via my player for my Chord Qutest.  How will a pre-amp make things better.  


davidgwillett
The first thing to do is rid your signal chain of all processors, filters and "mini eq, etc. Then and only then can you worry about things like preamps.

And I would forgo the Fisher for something more modern (and better!)

Oz



davidgwillett
I have the opportunity to get a nice Fisher 400CX-2...but why?

 Going direct is the most transparent/dynamic/uncolored way of listening to your source.
Only if you find the need to "color" the sound of your source do you need an expensive active preamp, but you will take a hit on the above for that coloration.
It makes better sense to change the source to get what’s wanted/needed instead.

Classic saying: Ivor Tiefenbrun (Linn LP12 TT inventor)
"It all starts at the source, get that right and you half the way home"

Cheers George
I am buying a DAC with a volume control in July, the AudioByte Vox setup. One of the pieces in that 3 unit stack is not yet available. After many years of using a DAC direct and also with a BAT VK-42SE preamp. I found the addition of the preamp beneficial.

Yesterday, I bought the Benchmark HPA4 preamp + headphone amp to connect to my future DAC. Not sure if this is to be believed but some reviewers were stating that the addition of this preamp made the DAC sound even quieter than direct DAC to amp. I shall see when this unit arrives in a few weeks.


Preamps are for volume controls and switching between source.

Some add things like filters, tone controls or extra gain for phono sources. 

Preamps typically introduce a particular sound of their own. Some might like to use a preamp for that alone


If you don’t need any of this things you are good to go.
Luminous Audio makes a passive preamp with a volume control that is not in-line with the signal. It works great, trouble free, and it does not change the sound. You can add inputs and outputs and selector switches as desired.