Cambridge Audio Edge S Limited Edition Floorstanding Speakers; pair

The Cambridge Audio Edge S is a limited-edition floorstanding speaker handmade in Cambridge's London facility to celebrate the company's 1968 founding. Only 68 pairs were built worldwide. We have the final two.

Cambridge engineers spent years refining the Edge series philosophy: eliminate distortion before it starts. The Edge S is the speaker expression of that work, paired to the Edge A integrated amplifier and Edge W power amp that defined the company's flagship line. Four drivers in an acoustically inert resin cabinet with non-parallel sculpted walls, a CNC-milled aluminum plinth, and Cambridge's new Continuous Profile Cone (CPC) midrange and woofer technology.

Key Features of the Cambridge Audio Edge S

• Limited to 68 pairs worldwide: Built to commemorate Cambridge Audio's founding in 1968. Each pair ships with a numbered limited edition certificate.
• Aspirated Tweeter Technology (ATT): A 25mm aluminum dome sits in a freely floating, vented diffuser that lets the rear wave breathe instead of compressing into a closed chamber. Eliminates the coloration typical of conventional sealed tweeters.
• Continuous Profile Cone (CPC) drivers: One 4-inch CPC mid/bass and two 6.5-inch CPC woofers, each circled by a CNC-machined aluminum ring that decouples the driver from the cabinet for cleaner dispersion.
• Acoustically inert resin cabinet: Polyurethane resin chassis with sculpted, non-parallel internal surfaces. Resists resonance and standing waves that color the sound of conventional MDF boxes.
• Solid aluminum plinth: CNC-milled base with spiked feet provides a rigid mechanical ground that prevents cabinet motion from bleeding into the floor.
• Frequency response 35Hz–30kHz: Full-range bass extension without subwoofer support; ultrasonic top end that captures the air around cymbals, strings, and vocal sibilants.
• Lunar Grey finish: Hand-finished metallic silver-grey, the only finish offered on the Edge S.
• Copper-plated, single-wirable binding posts: High-conductivity terminals built for bare wire, banana, or spade connections.

True Limited Edition

The number 68 isn't marketing. It's the year Cambridge Audio was founded in a basement on King's Parade in Cambridge, England, by engineers determined to make British hi-fi accessible. Sixty-eight pairs of Edge S were built, one for each year between that beginning and the speaker's release. When they're gone, they're gone. There won't be a second run.

The Aspirated Tweeter, Explained

Most dome tweeters fire forward into the room and trap their rear wave inside a small sealed chamber behind the dome. That trapped energy reflects back through the dome, smearing transients and adding a characteristic ringing that hi-fi listeners learn to tolerate. The Aspirated Tweeter solves the problem mechanically: the 25mm aluminum dome sits on top of a vented diffuser that lets the back wave dissipate freely. The result is faster transient response and a more open top end that doesn't soften or grain at high SPLs.

Continuous Profile Cone

The 4-inch mid/bass and the two 6.5-inch woofers all use Cambridge's new Continuous Profile Cone, a single-piece cone with a smoothly curved profile that eliminates the abrupt transition between cone and surround found in conventional drivers. Each CPC is surrounded by a CNC-machined aluminum ring that decouples the driver basket from the cabinet face, so the cabinet wall doesn't act as a secondary radiator. The combination produces cleaner dispersion and lower distortion at high output levels.

The Cabinet Is Not a Box

Cambridge cast the Edge S chassis from polyurethane resin instead of building it from MDF panels. Every internal surface is sculpted on a curve. There are no parallel walls anywhere inside the cabinet to set up standing waves. The non-parallel construction makes the enclosure mechanically inert at the frequencies music lives in. The base is a single-piece CNC-milled aluminum plinth with spike feet that couple the speaker rigidly to the floor.

The Listening Room Difference

We're a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on exceptional service and relentless passion for hifi. Whether you're visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don't just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.

Cambridge Audio Edge S Specifications