2. amps-preamps
  3. 168622-22888

amplifier with volume control

I began my journey with an active preamp then switched to a placette passive which was more transparent but sucked the life out of my system (but I was using longer interconnects to monoblocks).  I have one source (a computer with a usb dac) and am now running direct to my amplifier which sounds much better than my previous 2 configurations. I am using a digital volume control and my thought is to change to an amp with a built in volume control - like an audion - or have a tech install one on my amplifier. My question is how is an amp with a volume control different - if at all- from a passive (simple pot in a box) connected with short interconnects to an amplifier?       thank you
majorc
vassilis_t
35 posts
 
FM Acoustics amps have gain control for each channel in the back panel and Vitus Audio used to have the capability for variable output or fixed for 2 sources (not familiar with current models). For example, the VA  SS 101 sounds great alone and there is no need for preamp.
hoosierinohio
146 posts
 
I prefer the name of potentiometer for the volume switch.  It just makes it sound like it is holding all the answers.  This may sound strange but I have my "cheap system".  This runs a class D amp to some transmission line speakers that I built.  I only run through this through bluetooth.  So, should be a crap sound, not going to argue things could be much better.  To maximize this, I run the volume switch on the "integrated D amp" at 2/3 potential.  I then adjust the volume from digital source.  This makes the speakers much more alive and dynamic at all volumes.
turnbowm
353 posts
 
I’ve used passive preamps in the past but they’re quite limited in application due to loading effects. A power amp with volume control would also limit one’s choices. For my application, an integrated amp was a better choice.
verdantaudio's avatar
verdantaudio
1,469 posts
 
It depends on the amp and the optimal level of gain required.  With an amp that is extremely sensitive, (for example Art Audio PX25 or Diavolo is driven to max volume at .5v input) a passive preamp is preferred.  With amps that are less sensitive, higher gain in the preamp and a higher output is preferred and will deliver a better sounding experience.  

The key is choosing the right option for the power amp in question.  There is no "best option."  There are best options for that particular amp and system.  
jp-2213
43 posts
 
Airtight or nice little integrated with a quality volume attenuator or best bet for your set-up (as mentioned prior) a DAC with quality volume control

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