300b lovers


I have been an owner of Don Sachs gear since he began, and he modified all my HK Citation gear before he came out with his own creations.  I bought a Willsenton 300b integrated amp and was smitten with the sound of it, inexpensive as it is.  Don told me that he was designing a 300b amp with the legendary Lynn Olson and lo and behold, I got one of his early pair of pre-production mono-blocks recently, driving Spatial Audio M5 Triode Masters.  

Now with a week on the amp, I am eager to say that these 300b amps are simply sensational, creating a sound that brings the musicians right into my listening room with a palpable presence.  They create the most open vidid presentation to the music -- they are neither warm nor cool, just uncannily true to the source of the music.  They replace his excellent Kootai KT88 which I was dubious about being bettered by anything, but these amps are just outstanding.  Don is nearing production of a successor to his highly regard DS2 preamp, which also will have a  unique circuitry to mate with his 300b monos via XLR connections.  Don explained the sonic benefits of this design and it went over my head, but clearly these designs are well though out.. my ears confirm it. 

I have been an audiophile for nearly 50 years having had a boatload of electronics during that time, but I personally have never heard such a realistic presentation to my music as I am hearing with these 300b monos in my system.  300b tubes lend themselves to realistic music reproduction as my Willsenton 300b integrated amps informed me, but Don's 300b amps are in a entirely different realm.  Of course, 300b amps favor efficient speakers so carefully component matching is paramount.

Don is working out a business arrangement to have his electronics built by an American audio firm so they will soon be more widely available to the public.  Don will be attending the Seattle Audio Show in June in the Spatial Audio room where the speakers will be driven by his 300b monos and his preamp, with digital conversion with the outstanding Lampizator Pacific tube DAC.  I will be there to hear what I expect to be an outstanding sonic presentation.  

To allay any questions about the cost of Don's 300b mono, I do not have an answer. 

 

 

whitestix

Showing 6 responses by fthompson251

@charles1dad  Yes, it was a very tough decision but I cannot lift the damn thing anymore and re tubing it is nearly $2000. I want to simplify my retired life a bit. I just picked it up from VAC and it is fresh as a daisy for the new owner. New tubes with about 100 hours on them.

I am glad I followed this, am in search of a new line-stage and the Raven looks like a good prospect. I have simple needs with only one RCA and 1 XLR input and same with outputs. I will pair it with my VAC Renaissance 70/70Signature amp and XLR into my Legacy Audio Focus XD’s. Saw the Raven design on a You tube show Video.

@lynn_olson

"However ... the way the Raven is configured now, it can only drive one output at a time, either XLR or RCA. Well, technically it can drive both at once ... no harm is done to the circuit or any parts ... but the load is then unbalanced, with more cable capacitance on one side than the other. So the amp with the balanced inputs will receive a signal that doesn’t quite match at high frequencies."

 

I wonder if this is an issue since the XLR’s are just driving the bass, however this happens with in the internal crossover in the speaker. I spoke with Don on the phone today, getting clarification from Legacy how this works with RCA and XLR together in bi-amp.

@lynn_olson  - Is the Raven Preamp AES48 standard balanced? They don't have a price listed for it that I can find.

OK thanks @donsachs   and @lynn_olson        I missed that price when I looked at it the first time online. A significant point you made Don is the fact that it will "happily drive a 10K amp impedance"   I have a new Coda amp on order and the XLR input is exactly that! I sent some questions to Spacial Audio regarding deposits and time it will take to get one. I want to keep a tube preamp in the drive train. My old one was 25 years old! Thanks!

@lynn_olson @donsachs I’ve been in touch with David Whitt about the pre amp, he said they are shipping the first build cycle in May of this year. He also stated  that there is a 6 week build cycle. It seems you are still making changes to it at the moment, at least from what I gathered in this thread? Would it be wise to hold off a bit for a couple months until you determine the final product? I am not in a hurry, but searching for my end game preamp and want te best version of it.