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TK Audio SP501 500 Series Preamp

500-series preamp - class-A unit with a unique hybrid design including both vintage and modern circuits derived from TK’s flagship DP1 stereo preamp
MFR# SP501

Product Description

TK Audio enters the 500 series preamp market with the incredibly versatile TK Audio SP501, a new single slot 500-series class-A unit with a unique hybrid design including both vintage and modern circuits derived from TK’s flagship DP1 stereo preamp.

The midrange crunch of the germanium sound of the mid 60s, the low-mid punch and thick sound associated with British Class A from the early 70s as well as the more modern tone from the 80s and 90s are finally all available in a single unit.

SP501’s input stage is built around a high quality Swedish Lundahl transformer followed by a Germanium stage that adds more harmonics. Two different output stages can be selected – either an electronically balanced stage, or a discrete transformer-balanced class-A stage sporting a heavy Carnhill output transformer. Vintage Class A mode produces a fat and punchy sound with mid-range character and a warm top end, while the electronically balanced output stage is less colored and perfect for clean amplification. A sweepable HPF from 30Hz to 400Hz allows precision crafting of the low end.

“SP501 offers a unique, diverse set of flavors at an amazing price,” states TK Audio president Thomas Kristiansson, “We couldn’t be happier with the final product.”

Product Specifications

ConditionNew
Tube or Solid StateSolid State
Chassis500 Series
Module Type500 Series
Module Slot Count1 Slot

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I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
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In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
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This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
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The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
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