Welcome
Welcome to my redesigned website
Jan., 2026:
NOTE: AGAIN, I NO LONGER WORK ON RESTORATION OF VINTAGE
GEAR. I leave the photos up here for those who would like ideas on
how to restore theirs.
Lynn Olson and I have a new project with Joseph Crowe Audio in
Ontario, Canada. We have updated the designs still being produced by
Spatial Audio Lab to all DHT (directly heated tubes) in both the preamp
and the 300b amps. The power supplies have been considerably
updated and the casework is by Troy Joseph Crowe. You can see these
designs here. The prototypes of the preamp and amps were
demonstrated at the Toronto AudioFest in October and we won a Blue
Note Award for best room of the show from Enjoythemusic.com.
Feb., 2024:
NOTE: I no loner work on vintage tube gear. I leave the photos up here
for those who would like ideas on how to restore theirs.
The first production 300b amps and preamps are now available for
order from Spatial Audio Lab.
https://www.spatialaudiolab.com/revelation-preamp
https://www.spatialaudiolab.com/revelation-300b-monoblocks
Sept 3, 2023:
I have partnered with Spatial Audio Lab in Salt Lake City to build the
new Raven preamp and Blackbird 300b mono amps. These have been a
two year collaboration with Lynn Olson. The rough prototypes were
shown at the Pacific Audio Fest in Seattle in June. If you heard them
there I can assure you the current and final versions are FAR better in
every way. I would expect the first ones to be available in early to
mid- November. There is more info at the Spatial Audio Lab site:
https://www.spatialaudiolab.com/news/august-2023-updates
Photos will be posted on my 300b project page as it develops. Spatial
will change the look slightly in the production version, but the overall
size and layout will remain the same. We are now using custom wound
Monolith Magnetics power and output transformers.
I will build a few more things for sale and if no one is waiting I will post
them for sale on the site in my for sale section. Currently there is
nothing for sale as I am focusing on getting the 300b project into
production.
Review of my new Spatial Audio X5 speakers.
These are just wonderful. See my review here.
Latest project:
I have just finished the first production version of the 6L6 based integrated amp. It
has the same caps and power supply (scaled down slightly for the lower power
version) as the big Kootenay 120 KT88 amp. Fully regulated independent supplies
for each channel. Same beautiful toroid transformer set, just a slightly smaller
power transformer and the output transformers are optimized for the 6L6/EL34
tube types. I am getting about 32-35 watts/ch on the bench depending on the
output tube type. We will call it a 30 watt/ch integrated amp and it will easily
meet that spec to below 20 Hz. The amp is holographic and is quite stunning. I
have 96 dB speakers and it sounds like a 60 watt/ch amp. Bass is astounding. Oh,
and it is so quiet you really cannot tell it is on when idling away. You can put your
ear to the 96 dB speaker and barely hear anything at idle. It will come with the
excellent Russian 6P3S-E tubes and three Shuguang WE6SN7 tubes up front. It
will run EL34/KT77/KT66 tubes as well. One XLR input and 3 RCA inputs and the
64 step remote Khozmo attenuator with relay input switching. It will sell for
$3995. I think the production one is sold already, but I can produce another. Lead
time is about 8-12 weeks in the virus times. Will create a page for it as soon as I
can take better photos.
I am Don Sachs, and for over seven years I have been Jim McShane’ s authorized
tech/installer. During this time I have restored close to 80 Citation II amplifiers, about 50
Citation I preamps, 6 Citation V amplifiers, 3 Citation IV preamps, several Citation IIIx tuners,
and numerous Award Series integrated amps and receivers. I have also restored numerous
tube integrated amps, power amps, preamps, and receivers by Fisher, Scott, Sherwood,
McIntosh, Eico, Lafayette, Sansui, Heathkit, Knight, Bogen, and others. Too many to count.
All restorations of Citation gear are done exclusively with Jim's parts and kits. You may read
about all the McShane upgrades to the Citation gear on his website.
On this site you can read about some of the services I offer and the associated costs. These
are guidelines. Every piece is different and the price can vary a bit depending on the level of
restoration or additional options or customer preferences. The services page contains links to
the gear I specialize in. I now produce new custom tube line stages, phono stages,
and power amps. Quite frankly, in all my years of restoring vintage gear, these are among
the best I have ever heard! Check out the for sale page for any gear that I might have
available for purchase. The gallery has some photos of pieces I have worked on in the past
few years.
© Don Sachs, 2015
Repair and rebuilding of
vintage tube audio equipment
by Harman Kardon, Sherwood,
Scott, McIntosh, Fisher,
Marantz, Eico, Heathkit,
Lafayette and many others