Sutherland 20/20 Owner's Manual - Operation

Summary of 20/20

  • Page 1

    20/20 -a phono preamplification instrument by sutherland engineering owner’s manual.

  • Page 2

    I like design challenges. That is how all new products begin. This time the challenge was to offer an ac line powered phono preamp that would fit comfortably in with the sutherland series of battery powered phono preamps. An extremely low noise floor and precise resolution was a must. Not only was thi...

  • Page 3: Design Philosophy

    Design philosophy another path to the same destination. It is a pleasure to announce a new phono preamplifier from sutherland engineering. It is derived from the best elements of the ph3d and the hubble. The signal path is almost the same as the hubble; the construction is as simple as the ph3d. It h...

  • Page 4: Design Philosophy

    Design philosophy power supplies i don’t know of any audiophile who likes power supplies that even remotely resemble ‘walwarts’. The 20/20 uses not one, but two of the wallwarts more sophisticated relatives – politely called a regulated tabletop power supply. To understand this choice, let’s look at...

  • Page 5: Design Philosophy

    Beautiful on the inside fr-4 fi berglass circuit boards, double-sided with plated thru holes dale/vishay 1% metal fi lm resistors wima polypropylene capacitors for power supply by passing custom wound, 1% polystyrene fi lm capacitors for equalization 14 gauge cold rolled steel chassis baked epoxy powde...

  • Page 6: Operation

    Operation initial set up release the top cover by removing the four knurled screws on the sides of the chassis. At the left rear of each circuit board, you will find jumpers which are clearly labeled for changing cartridge loading and gain settings. The 20/20 is shipped with a cartridge loading of 10...

  • Page 7

    20/20 specifications gain settings 40 db 46 db 52 db 58 db 64 db cartridge loading 100 ohms 200 ohms 475 ohms 1k ohms 47k ohms size 17” wide 2 ¼ “ high 12” deep -external power supply (each) 5” deep 1 ½” high 2” wide weight 11 lbs. Net 19 lbs. Shipping power requirements power: 20 watts (10 watts per...