Sutherland Engineering Dos LOCOS Transimpedance Phono Preamplifier
What is the Dos LOCOS and who needs it?
The journey to create the DOS LOCOS is a story of collaboration and discovery, highlighting the process as much as the outcome.
Born from the innovative spirit of the Phono Loco, with its pioneering all-transimpedance approach, the DOS LOCOS stands as a significant advancement in Ron Sutherland’s artistry.
For the first time, he teamed with trusted, passionate experts to add an ear-approved essence to his already proven approach to elegant circuitry.
Sutherland and team patiently experimented with combinations of parts and processes until they happily arrived at the moment where the music left everyone speechless. Only then did the DOS LOCOS arrive.
Everything that made the PHONO LOCO such a landmark piece — its no-compromises approach with no concession or allowance for anything that clutters the signal path — is refined to the point of pure musicality with the dual-mono DOS LOCOS.
Is it twice as crazy good, as the name might suggest? At least!
Chad LaFever, Ron Sutherland, and Abby LaFever
This phono preamp isn’t about specs and stats. Nor is it about announcing Sutherland’s genius. It’s about a group of likeminded music lovers relentlessly pursuing a sound that, before now, only existed in their imaginations.
There is no explaining the DOS LOCOS — not in the technobabble way normally used to sell audio components. By their own admission, Team Sutherland “moved into” something that goes well beyond technical description.
Their journey didn’t center around a test bench but rather the sweet spot of their listening room. The decision tree throughout the entire project revolved around one simple question:
Performance Realized?
Sutherland’s approach to audio engineering is disciplined and values-driven, focusing on high-quality, reliable components without succumbing to the temptation of adding unnecessary complexity. Our minimalist design ensures a signal path of unparalleled purity, letting nothing stand between you and the music.
The brilliance of this design isn’t in how many parts are added to the signal path but rather how few.
But those things have always been hallmarks of Sutherland Engineering. The DOS LOCOS is at a new level. It adds an indescribable mysticism that simply must be heard to understand.
This is your invitation to listen — to truly listen — and to be moved.
Gain Adjustments
Internally adjustable to HIGH, MED or LOW. Transimpedance gain cannot be expressed in dB. There is plenty of gain for very low output MC cartridges. Even with the lowest output MC, background noise vanishes.
Cartridge Compatability
Use only low output MC, less than 20 Ohms internal resistance. Not MM, nor high output MC.
Front Panel
Silver with Amber LED or Black with Blue LED
Stereo Application
Use a DOS LOCOs pair for stereo. See owner’s manual for details.
Mono Application
Use a single DOS LOCOS for optimal performance with your MONO cartridge. See owner’s manual for details
Product Specifications
Power Requirements
120 VAC
240 VAC (Special Order)
Dimensions (WHD)
17" × 2 1/2" × 13"
Weight
11 lb.
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