PS Audio BHK signature preamp

OK, the BHK arrived yesterday and did a push-pull with my RP-1, with no changes other than new balanced cables (Mogami 2549 XLR, replacing Mogami 2549 RCA) running from BHK to Warp 1. 

Hopefully I am not experiencing confirmation bias, but out of the box, with new cables & stock tubes, the BHK sounds wonderful. Dead quiet, tighter, fuller, crisper highs, tight solid bass, darker backgrounds, improved decay/harmonics, soundstages/separation... all the accolades we have heard so many times seem to be true. Almost like a veil has been lifted. My Aurender/Qutest digital no longer sounds lean, but great! My Hana ML sings.

The slight phono hum I experienced at higher volumes is gone. Symbolism gone. (These cannot be confirmation bias). Unbelievable! 

I am sure some of it is utilizing balanced in my Warp 1 (according to Stereophile, it was designed to be used balanced) (BTW, just discovered the Warp 1 is rated as a Class B amp by them... my only other Class B product is my Hana ML). But the rest has to be this wonderful BHK pre making everything better. 

I have never experienced sound improvements like this in all my many changes. I would not believe it possible for non-source electronics. Could not be happier... set for a while! Thank you for all your recommendations.

@signaforce awesome news! Let it cook for two weeks and it should get even better.

Thanks! It’s cooking! 

For my sanity, I was doing some research to try to understand the significant perceived improvement from the RP-1 to the BHK. I found 4.

1. The RP-1 is a very good entry level pre. The BHK is a very good high end pre. Design, weight, components etc all superior. Obvious but…
2. This ties into #1. The published THD distortion of the RP-1 is <1%. The published THD & IM distortion of the BHK is <.03%, That’s more than 3x the THD distortion for the Rogue and the IM distortion of the Rogue is not even published. 
3. Capacitance mismatch. From another audiogoner: “the RP-1 is very sensitive your amp's input impedance. My amp's is around 40Kohm and it sounded lifeless....an obvious loss of high frequency air and detail”. My Warp 1 is 47Kohm, and suffered the same issue.
4. As i stated earlier, my amp is designed to run balanced. The BHK accommodates this.

End result, my ears were not deceiving me! Thanks!

Congrats on the great purchase.

Now you need to not read the forums so that you stay happy wilt your gear.

BTW - I spoke with my friend who had my Yggi+ OG for the past month. This guy has incredible hearing, and I am buying his new speaker line. One reason being because of his hearing. He and some audiophiles compared my Yggi+ OG with the Dave and also the Mola Mola Tambaqui with the best headphones in the world.

The Dave and the Mola are in the $15k region and maybe $20k for the Dave if you add the upscaler (not sure if that was used). He liked the Mola Mola the best but given the price delta he thought the Yggi+ was incredible and the easy choice for him.

I was watching a video with one of the Schitt founders and they are going to release some new features on the Yggi+ lineup in 2026. The existing Yggi+ units are all upgradeable.

I am also a BHK Preamp owner and it had been one of my best accusations for about 5 years now. One of the best things I like about the pre amp is “tube rolling” aspect as well. I have also enjoyed changing out the safety fuse (3] times to get what is best for my system. Really, is are you getting the unit in silver or black? Personally,I have silver with the shiny black top. And the final close of the sale is the (THE SPECIAL SALES PRICE”  So there it is! All your questions and thoughts all answered!  So go enjoy the sound.

cheers,

sandroc