Roger Alan Modjeski (RAM) 1951 - 2019


It is with great sadness that I announce Roger A. Modjeski passed away peacefully in his home in San Pablo, CA after an 12 month battle with cancer. Roger started Music Reference in 1981 and later RAM Tubes, The Tube Audio Store, and The Berkeley HiFi School. For more than 38 years he tirelessly ran his business and designed some of the most unique and well received audio components in the industry. Right until the near end Roger was working, designing, and teaching until he physically was unable to continue.

The link below will take you my playground where I have posted my tribute to Roger (click ENTER after the page loads):

http://www.electrafidelity.com/

Fare thee well my friend.
clio09
Mmm, sounds like he was working on the direct drive amp for the Majestic last year. So a circuit for it probably exists somewhere in his stuff. I imagine it would be a refinement of his 80s-90s one. I wonder if this was going to be a statement circuit for him, an early hint that he was becoming ill?
It was late 2018 when Roger suffered symptoms and was diagnosed so in early 2018 he had no idea he was ill. Roger's first foray into direct drive amps was to modify the Acoustat model by designing a tube input stage for it. Following that he designed his version of the direct drive amp (his personal one sits in my living room as I write this) which was initially done for some Acoustat speaker owners. As those familiar know the amp puts 5000 volts on the panels. Following that Roger used the same design for his ESL speakers, which in some ways are modeled after the Acoustat but with a number of improvements especially with dispersion. Roger always said that Jim Strickland himself was on the same path to improving dispersion in Acoustat designs, but never got to finish the process.

If I recall correctly my conversations with Roger about using the direct drive amp for my Quad ESL had more to do with adjusting the voltage the amp put out than anything else. I could be wrong but I believe he said the Quad ESL needed 1800 volts on the panels. So for the Sound Lab speakers the process might be similar. We do have the circuit and it is not inconceivable @gallassero might see an amp for his Sound Labs in the future.
The Quad 57s run 6kV on the two bass panels and specified for 1.5kV on the treble panel. I remember Roger musing that he wanted, I thought at the time somewhat ambitiously, to run 1.8kV on his Quads. I always thought that would be pushing them a bit too far as the classic design is already quite prone to arcing over at higher volume. It was to do with lowering the distortion IIRC.
I’m not that familiar with the Acoustats but have heard them. How did he improve dispersion? Are there multiple tweeter panels on an Acoustat so you can use different phase to each, like on the Quad 63?
It would be brilliant to get Majestics going with direct drive, if you can make it, do! I’m sure Roger would have loved that. (Be very careful with instantly lethal voltage on the tube voltage power supply!!!) You’ll need to have a good working knowledge of their characteristics first, and liasing with Soundlabs would be the way to go I suspect.
Hope it would be Mono-Block, and reliable like his designs. While working @ Acoustic Sounds I raved about Music Reference to hundreds of customers over 6 years. BEST gear for the money not expensive. No one would believe what I paid for the pair of RM-9's. Roger was very generous, definitely never driven by the almighty dollar. Very few things you get to smile at for 24 years straight and counting........... got'm for a song and they're still singing....................RIP RAM.
 Never told anyone what I paid for the Mono-Blocks except Chad, just meant no one would believe IF I told them.
I don't think there will ever be a direct-drive for my Soundlabs without Roger. Not enough money in that venture, so only Roger would have built and tested it properly and for the right price.  
Impossible to compare Music Reference products with others, there is nothing comparable for sound, value and reliability. 
I do hope that the current MR products stay in production, for all those audiophiles who can't afford the reliable Atma-Sphere or Pass Labs offerings.