Benchmark LA4 Preamp?

@yyzsantabarbara Make sure you give your AMT3 at least 50 hours of break in. Of all the components I’ve owned, the change in sound was the most dramatic for this one. For the first 20 hours, I thought I made a mistake and was ready to return it. Glad I persisted though. 

@arafiq  The AMT designer, Vlad, told me the same today. Minimum of 50 hours. However, I see others saying 100-150 for some caps that my unit has. This DAC will used mostly with the RAAL SR1a headphones and the CODA CSiB. I think it will be amazing.

The AMT will also get playtime with the Benchmark stack too. I was told I may not be able have the RCA and XLR DAC outputs connected at the same time with the AMT DAC. Unlike my Benchmark DAC3B which has no problem with RCA and XLR outputs connected at the same time to the CODA integrated and HPA4 preamp. Not a big deal to work around that though.

Hello yyzsantabarbara,

      And you claim you actually get work done in this so called office?  
     You lost me at Convolution files, it's the first I've heard mention of these.  Could you describe the concept and the audible benefits you perceive from using them?

Thanks,
   Tim     

Thanks Tammy for bringing this thread back.

@noble100 You are right that I am not getting much work done. That is OK for now since I am on a quiet period work wise. The music sounds so good now that I spend a lot of time being distracted by music instead of concentrating on work. First world problems.

Take a look at the photos of my awful room. I need to update these photos with the new gear I described in the prior post.
https://systems.audiogon.com/systems/7605

A big speaker in what looks like a totally inappropriate room. Today after doing the steps that are described in the links listed below, the sound I have is pure perfection.

Watch the 20 minute video described in this current A’gon thread. The presenter talks about ROON Convolution for headphones. I use it for 2 channel not headphones. My Meze Empy and RAAL SR1a headphones do not have Convolution settings in the extension described in the video. So I just use Convolution files for 2 channel speakers.

https://forum.audiogon.com/discussions/roon-10-things-you-don-t-know

I have these Convolution files created by this guy.
https://www.amazon.com/Accurate-Sound-Reproduction-Using-DSP-ebook/dp/B01FURPS40/ref=sr_1_1?crid=2ML...
A Sound Engineer and a real superstar at his craft. He did this work remotely from Canada after I gave him my room acoustic measurements.

The next link is a deep dive to the details of how the Convolution files were created . You need to follow the links I lay out in my posts.
https://forum.audiogon.com/discussions/room-correction-roon-rew-room-eq-wizard/post?highlight=convol...

Using Benchmark LA4 preamp driving 2 x Quad 909 power amps powering my Neat Motive 1 speakers. Overall sound is exceptional. Clean and relaxed. I used couple preamps before … Krell KRC-3 and Quad 99 … sound was great, but never exceptional. Now I have exceptional 😉👍.