Sutherland Engineering Duo Phono Preamplifier with Linear Power Supply
SKU: 69827615891

Sutherland Engineering Duo Phono Preamplifier with Linear Power Supply

Sale price$4275.00 Regular price$4750.00
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

Sutherland Engineering Duo Phono Preamplifier with Linear Power SupplyThe DUO is derived from the cost no object PhonoBlock and the cost optimized 20 20. No expense was spared in the design and construction of the Phono Blocks. The Phono Blocks are at the pinnacle of phono preamp performance. It just doesnt get any better. The 20 20 was designed to get the most performance possible at its predetermined price point. To get there, extra was spent to get premium parts and circuitry into the signal path. Consequently, some

The DUO is derived from the cost-no-object PhonoBlock and the cost-optimized 20/20. 

No expense was spared in the design and construction of the Phono Blocks. The Phono Blocks are at the pinnacle of phono preamp performance. It just doesn’t get any better. The 20/20 was designed to get the most performance possible at its predetermined price point. To get there, extra was spent to get premium parts and circuitry into the signal path. Consequently, some expenses were squeezed out of less important areas.

Those trade-offs have worked very well. The 20/20 has delivered an extremely high level of performance at a reasonable price. It is an incredible performance value. What if all the price constraints in the 20/20 were lifted? The price goes up, the performance goes up. It starts looking a lot like the PhonoBlock. The actual signal path of the 20/20 is quite good. It uses a circuit very similar to the PhonoBlock. In critical positions, it also uses the same premium quality (and high cost) components. Very little was held back in that area.

The opportunity for upgrade is focused on a more refined power supply, improved circuit board properties and dual chassis construction. Enter the DUO...

Each DUO has a built in AC power supply. There is an IEC power inlet on each chassis to accommodate the user's personal power cord choice. The shielded power supply module has one output. That output is split into two branches. One for each of the two gain stages. Each of those branches is independently filtered and regulated to provide a substantial foundation for the gain stages.

Features

  • FR-4 fiberglass circuit boards
  • Double-sided with plated thru holes
  • 1/8” thick for extra rigidity and minimal dielectric influence
  • Dale/Vishay 1 % metal film resistors
  • Wima Polypropylene capacitors for power supply by passing and DC servo
  • Custom wound, 1 % polystyrene film capacitors for equalization
  • 14 gauge cold rolled steel base baked epoxy powder coat finish
  • 1/2 “ thick anodized aluminum panel
  • Anodized in front panel artwork
  • Gold plated, Teflon insulated RCA connectors
  • Gold plated configuration headers and shunts

Linear Power Supply Upgrade: Factory upgrade. Linear Power Supply reduces noise by transforming line voltage.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 69827615891

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Dallas, US
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Edward
Massapequa, US
★★★★★ 5
Black mens coat
I didn't expect such good quality from such an inexpensive black coat, stylish, neat, looks expensive, none of my friends believed that I bought it so cheaply! No pellets appeared after a year and a half of use
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Bozeman, US
★★★★★ 4
Has shoulder pads.
The jacket has shoulder pads that don't necessarily show on the image in the purchase area. Pretty pronounced so if that's not your thing definitely stay away. Got lucky and it doesn't look too bad on me but it took so long to receive the package I don't feel like going through the refund process so I'm dealing with it. Quality is great tho
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Reviewed in the United States on January 23, 2024
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Luis Chávez
Alexandria, US
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Softness
Size: Medium, Color: A-red
High quality material !
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Reviewed in the United States on January 6, 2026
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T. Brown
Belleville, US
★★★★★ 3
Nice Coat Not So Great Packaging
Size: X-Small, Color: A-grey
Nice coat but packaging needs to be improved. It arrived not properly folded and as a result it was completely wrinkled. Took some work to iron so it looked as advertised. Packaging for such things has to be reviewed.
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Reviewed in the United States on April 20, 2025

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