Jeff Rowland Coherence One Series II Stereo Preamplifier; MC Phono; Upgrades

Jeff Rowland Coherence One Series II Stereo Preamplifier Highlights

Product: Jeff Rowland Coherence One Series II Stereo Preamplifier; MC Phono; Upgrades

Product SKU: 74675

Serial Number: 000581

Input Voltage: 120V

Cosmetic Description: Good cosmetic condition with some minor visible cosmetic wear including a small ding on the bottom of the right trim knob, along with some scuffs, nicks, and scratches around the faceplate edges and chassis surfaces of both the preamplifier and the power supply. This item shows some wear consistent with its age, but is still presentable and sounds wonderful.

What is Included: Preamplifier, Power supply unit, Power cable

Functional Notes: Operational condition of this item is excellent, fully tested and no issues found.

Age: Unknown

# of Owners: 2

Tobacco Exposure: No

Service History: This unit was recently serviced at Jeff Rowland Design Group in July 2025. A relay was replaced on the CD input and upgrades were verified. Per Jeff Rowland, this unit has: "all upgrades and updates, including total silver teflon wiring"

Other Notes: 

This unit was recently serviced at Jeff Rowland Design Group in July 2025. A relay was replaced on the CD input and upgrades were verified. Per Jeff Rowland, this unit has: "all upgrades and updates, including total silver teflon wiring"

"The Rowland stood out well ahead of the others -- the sense of "space" and "air" was almost palpable with the Rowland, and its ability to resolve a soundstage was breathtaking. The Coherence One has an enormously natural presentation -- there is no grain, no noticeable artifacts, and the performers seem to be alive."

Shipping: Cost to ship this item within the contiguous United States is a flat rate of $55- including packaging and insurance. For all other locations including Hawaii, Puerto Rico and Alaska, please request a quote prior to purchase. Items with factory packaging will be double boxed. When factory packaging not available re-usable shipping box with custom injected-foam mold will be used. (for all items over 10 lbs). Note that all items valued over $750 will require a signature upon delivery.