Eliminated my preamp with amazing results


I pulled my preamp out completely. The result's were not subtle. 

For those who stream music only... I was going from my laptop... to my DAC...to my preamp...to my amp. My preamps ONLY function was volume control. Source control not needed.

I started using Audirvana recently which comes with it's own high quality 64 bit volume control that was far better than the potentiometer in my preamp. It dawned on me that I could control volume using Audirvana and plug my DAC directly into the amp and bypass the preamp altogether. (Roon and Jriver also have excellent volume controllers) Note: Audirvana has an app download on a tablet/phone so it acts like a remote control. I'm loving it!

This not only eliminated the preamps volume control but it took out ALL the electronics associated in a preamp including some cables. A FAR more direct route. However, you must use caution and make sure the volume is controlled properly in the software since the amp will be fed wide open volume.

Having experimented with 'passive' preamps in the past (McCormack TLC-1) I thought the sound would possibly lose dynamics and bass response would suffer. WRONG!

The results were...Shocking!! Immediately the extended depth of the image was noticeably deeper. Background darker. The highs are the best I've ever heard. Pristine. The bass was dynamic, tight and most of all 'textured' in a way I never heard before. As I stated earlier the results are NOT subtle! 

This is an experiment that took a few minutes to set up and yielded the best performance improvement of ANY other tweak I've ever tried. Not anything like using a passive preamp.

Equipment used...  Peachtree DAC-itx. 

                               Preamps...McCormack TLC-1 and Melos tube preamp.

                               Amp is McCormack DNA 0.5

Understand that different components will have different interactions with each other. Your results may vary. However, IF you don't like it, it takes just a few minutes to put the preamp back in the system. Nothing to lose and lot's to gain. After hearing this, I will NEVER go back to using a preamp. 

Good luck!

 

 

gdaddy1

Showing 4 responses by arhgef

I have a related question - when my preamp broke I made the same discovery while it was away for repair (RME ADI DAC2 now goes directly into McIntosh 462 amp). Both components have balanced connections. I have discovered that my tube pre (ARC LS25 II) is not helping this chain, but is a good thing for the  phone that I am also running. If I use a switch that goes balanced in and preamp in, then balanced out to the power amp, how much will the sound be degraded. Does anyone know a switch made with good components etc. for balanced connections? Thanks a lot for your help.

much appreciate antirunge2. I will stop saying thanks (just think it) to not clog up the conversation.

Thanks mspot. Those and maple tree audio seem to be high quality. Could put in a transformer for volume control and diy. Appreciate the tip. Amazing when you get into this how many small shops there are on the web doing really interesting things. 

Hi Atmasphere - I have found a lot of switches on line, but also reviews saying they were poorly implemented and would affect SQ. I wonder if someone has tried or can recommend a specific switch that is well made and will be transparent.