Advertisement
Best of High End Best of High End Best of High End
Choose
Buying guides
Best Hi-Fi AccessoriesBest Hi-Fi AmplifiersBest Hi-Fi LoudspeakersBest Streaming DACs
First looks
Reviews
Experience
Factory visits
Industry icons
Reports
Follow
News
Learn
Academy
Tech talk
Trust
Marco Lisi — Inside HQ
Daniel Březina — High-End, Lived-In
John Bugailiskis — Sound proof
Finn de Kroon — Kii room
Watch
Account
Inloggen
Contact
Populair
Menu
Choose
Buying guides
Best Hi-Fi AccessoriesBest Hi-Fi AmplifiersBest Hi-Fi LoudspeakersBest Streaming DACs
First looksReviews
Experience
Factory visitsIndustry iconsReports
Follow
News
Learn
AcademyTech talk
Trust
Marco Lisi — Inside HQDaniel Březina — High-End, Lived-InJohn Bugailiskis — Sound proofFinn de Kroon — Kii room
Watch
Best of High End
No Result
View All Result
  • Choose
    • Buying guides
      • Best Hi-Fi Accessories
      • Best Hi-Fi Amplifiers
      • Best Hi-Fi Loudspeakers
      • Best Streaming DACs
    • First looks
    • Reviews
  • Experience
    • Factory visits
    • Industry icons
    • Reports
  • Follow
    • News
  • Learn
    • Academy
    • Tech talk
  • Trust
    • Marco Lisi — Inside HQ
    • Daniel Březina — High-End, Lived-In
    • John Bugailiskis — Sound proof
    • Finn de Kroon — Kii room
  • Watch
Contact us
  • Choose
    • Buying guides
      • Best Hi-Fi Accessories
      • Best Hi-Fi Amplifiers
      • Best Hi-Fi Loudspeakers
      • Best Streaming DACs
    • First looks
    • Reviews
  • Experience
    • Factory visits
    • Industry icons
    • Reports
  • Follow
    • News
  • Learn
    • Academy
    • Tech talk
  • Trust
    • Marco Lisi — Inside HQ
    • Daniel Březina — High-End, Lived-In
    • John Bugailiskis — Sound proof
    • Finn de Kroon — Kii room
  • Watch
No Result
View All Result
Best of High End
No Result
View All Result
Home News

KSD C55-Reference 2.5-way Coaxial Main Monitor

Finn de Kroon by Finn de Kroon
February 18, 2025
in News, Loudspeakers
Reading Time: 2 mins read
KSD-C55-Reference-2.5-way-Coaxial-Main-Monitor

The KSDigital C55-Reference is redefining sound performance with its cutting-edge design and engineering. Featuring a dedicated 5.5-inch coaxial driver paired with a dedicated 5.5-inch woofer, this monitor promises exceptional audio clarity, maximum neutrality, and minimal distortion. Every sound and impulse is reproduced with remarkable precision and musicality, making the C55-Reference a standout choice for audio professionals and music enthusiasts alike.

  • Custom-Built Drivers for Unmatched Quality
  • Advanced Technology for Superior Sound
  • A Monitor for All Occasions
  • Technical Specifications
  • Conclusion

Custom-Built Drivers for Unmatched Quality

At the heart of the C55-Reference are custom-made drivers that adhere to KSD specifications, ensuring proprietary excellence. The coaxial design of these drivers offers unparalleled flexibility in terms of listening distance and placement, allowing for both vertical and horizontal configurations. The monitor radiates as a true point source, making it suitable for near-field applications as well as larger listening environments. Additionally, the integration of six parametric user EQs within the FIRTEC processor enables perfect adaptation to any listening room and distance, allowing users to tailor their audio experience to their specific needs.

KSD-C55-Reference-2.5-way-Coaxial-Main-Monitor-1

Advanced Technology for Superior Sound

Thanks to its phase-linear dispersion, achieved through FIRTEC filters, the C55-Reference delivers an incredibly lively and impulse-true audio experience. Users can expect an accurate representation of panorama width and stage depth, which is essential for detailed soundscapes. The inclusion of two bass drivers not only doubles the cone surface area but also ensures “boom-free” bass reproduction, thanks to their powerful drives. This makes the C55-Reference an ideal monitoring tool for all stages of music production, from tracking and mixing to mastering.

A Monitor for All Occasions

While the C55-Reference excels in professional environments, it is also designed for pure enjoyment. Whether you are critically listening to a complex piece of music or simply enjoying your favorite tracks, this monitor provides a rich and immersive audio experience.

KSD-C55-Reference-2.5-way-Coaxial-Main-Monitor-3

Technical Specifications

  • Design: 2.5-way coaxial main monitor
  • DSP: FIRTEC™ processor (patent: 19823110) in FPGA with 24 Bit ADC/DAC
  • Features: FIR-Xover, Limiter, 6 User EQs, High & Low shelving, Delay, Gain
  • Drivers:
    • 1″ neodymium tweeter (custom-made)
    • 5.5″ coaxial chassis (fiberglass cone for sub, 1″ silk tweeter)
    • 5.5″ bass chassis (fiberglass cone)
  • System Power: 350W
  • SPL: > 108 dB Peak/pair
  • Frequency Response: 35 – 22,000 Hz
  • Weight: 20 kg (22 kg including packaging)
  • Dimensions: 400mm x 200mm x 240mm (12.2 kg)
  • Mounting: Compatible with K&M 24471 for wall/ceiling mounting

KSD-C55-Reference-2.5-way-Coaxial-Main-Monitor-2

Conclusion

The KSD C55-Reference is not just a monitor; it’s a comprehensive audio solution that merges advanced technology with exceptional sound quality. Whether you are a professional in the music industry or a passionate music lover, the C55-Reference offers an audio experience that is both precise and enjoyable. Discover the future of sound monitoring with the C55-Reference and elevate your listening experience to new heights.

ShareTweet
Finn de Kroon

Finn de Kroon

Editor & Videographer

Finn de Kroon is an editor and videographer at Best of High End. His path into the audio-visual world began with an audiovisual study in Brussels in 2022; his interest in hi-fi followed soon after, when he started writing for Best of High End and began discovering new brands and everything the audio world had to offer. In 2024, Finn became a full-time videographer, producing promotional and business videos. Attending the High End show in Munich and Vienna deepened his knowledge of what the hi-fi world has to offer, further immersing him in the industry. Today, Finn's main area of expertise is video: he produces most of the videos published on Best of High End, alongside writing articles for the site's news page. Since joining Best of High End, he has fallen in love with high-end sound systems, and looks forward to discovering new brands and systems.

Related Posts

MM vs MC phono preamp: the Pro-Ject Phono Box S3 B with adjustable gain and loading
Academy

MM vs MC Phono Preamp: Why Gain and Loading Matter More Than the Spec Sheet

October 28, 2026
SVS America's Best Online Shops 2027 badge in a living room with SVS loudspeakers
News

SVS Earns Newsweek Spot Among America’s Best Online Shops 2027

October 28, 2026
Gamer wearing the Audio-Technica ATH-M50xSTS-WL at a PC setup
News

Audio-Technica Cuts the Cable With the ATH-M50xSTS-WL Streaming Headset

October 28, 2026
JBL RALLYBAR 2 soundbar with LED lighting, shown at SEMA Show 2026
News

JBL Brings RALLYBAR Gen 2 and New Car Audio to SEMA Show 2026

October 28, 2026
Linear Tube Audio Aero+ DAC with exposed tubes on a dark background
News

Linear Tube Audio Refreshes Its Tube DAC With the Aero+

October 28, 2026
arcam-launches-first-av-models-in-radia-series
News

ARCAM launches first AV models in Radia Series

October 28, 2026
Next Post
Alto-Chord-Electronics-New-Amplifier

Alto Chord Electronics New Amplifier

McIntosh-DS200-Streaming-DAC

McIntosh DS200 Streaming DAC

Trending This Week

1 Fosi Audio Revives the MP3 Player With the DAP Neo 2 PMC Prophecy 7 review 3 Eversolo T10 digital transport review 4 Topping Mini 500: A Compact Class D Amp With 500W in Reserve 5 Technics SL-1210MKX: New Flagship DJ Turntable Adds ±4% and ±50% Pitch Ranges

Most Popular Posts

01 55.9K READS What’s the best position for the subwoofer? 02 16.0K READS Dynaudio Evoke 20 review 03 15.4K READS Focal Aria 948 review
Lyngdorf TDAI-1120 review 13.0K reads Is one subwoofer enough to excite the room? 11.7K reads Revival Audio Atalante 3 review 9.9K reads Rega RP-10 review 6.0K reads MSB Technology Select DAC for the best sound 5.6K reads Atoll Electronique IN400 Evolution integrated amplifier review 5.2K reads

Tag Cloud

4K amplifiers Audio-Technica AV processors Bang & Olufsen Bowers & Wilkins Cables CD player CES 2018 Dac DACs DALI Dan D'Agostino FiiO Focal Gold Note HDR Headphone amplifiers Headphones HIGH END Munich 2025 High End Vienna 2026 High End® Integrated amplifiers JBL Klipsch loudspeaker Loudspeakers Lyngdorf Lyngdorf Audio McIntosh Panasonic Power amplifiers Preamplifiers Projectors Samsung Silent Angel Sony Steinway Lyngdorf StormAudio Streaming audio Subwoofers Turntables Vitus Audio Wireless speakers
Brand Partners

The brands we live with

Manufacturers and distributors who support independent high-end journalism. Their presence here never influences a score.

  • Alluxity
  • Atoll
  • DALI
  • Dan D’Agostino
  • Dynaudio
  • Fresh ‘n Rebel
  • IsoTek
  • Kii Audio
  • Lyngdorf Audio
  • McIntosh
  • NAD
  • Oehlbach
  • PMC
  • Purifi
  • Purist Audio Design
  • R_volution
  • Revival Audio
  • Samsung
  • Silent Angel
  • Steinway Lyngdorf
  • StormAudio
  • SVS
  • TCL
  • Vitus Audio
Radical geometry, 100 dB efficiency 🔥 The Sigma Ac Radical geometry, 100 dB efficiency 🔥 The Sigma Acoustics MAAT line grows with the new Zenith and XS. Link in bio.
#sigmaacoustics #maat #loudspeakers #hornspeakers #madeinitaly #hifi #audiophile #highendaudio #luxuryaudio #bestofhighend
Blaster White is back 🤍 The Luxman P-800u: four ba Blaster White is back 🤍 The Luxman P-800u: four balanced channels, LIFES 1.1 and three headphone outputs. Link in bio.
#luxman #p800u #headphoneamp #headfi #headphones #japaneseaudio #hifi #audiophile #highendaudio #bestofhighend
Studio flagship, hi-fi ambitions 🎧 The ADAM Audio Studio flagship, hi-fi ambitions 🎧 The ADAM Audio H715 Reference brings titanium-plated PEN drivers, a balanced Hi-Fi mode and Sonnox calibration. €669.99, from December. Link in bio.
#adamaudio #h715 #headphones #openback #studioheadphones #audiophile #hifi #headfi #highendaudio #bestofhighend
He played jazz double bass before he ever designed He played jazz double bass before he ever designed a circuit 🎶
Mark Levinson brought a musician's ear to audio engineering. In 1974 his LNP-2 preamplifier gave a whole category its name: high-end. Swipe through his story, from the LNP-2 and Cello to Daniel Hertz today.
Our new Industry Icon via the link in bio.
Which audio legend should we feature next? 👇
#MarkLevinson #IndustryIcons #LNP2 #highendaudio #hifi #audiophile #audiohistory #bestofhighend
1 of 100 🔢 EMT celebrates 20 years of the JSD line 1 of 100 🔢 EMT celebrates 20 years of the JSD line with the JSD twenty, a numbered limited-edition moving-coil cartridge.
MM or MC on your turntable? 👇
Full story via link in bio.
#EMT #cartridge #movingcoil #vinyl #turntable #analog #audiophile #bestofhighend
Turn it up in orange 🧡 Pro-Ject's Debut EVO 2 turn Turn it up in orange 🧡 Pro-Ject's Debut EVO 2 turntable and Speaker Box 5 S2 now come in Signal Orange.
Team Black or Team Colour? 👇
Full story via link in bio.
#ProJect #DebutEVO2 #vinyl #turntable #recordplayer #hifi #vinylcommunity #bestofhighend
Slim, close to the wall, and now with gold details Slim, close to the wall, and now with gold details ✨ The new Steinway & Sons Model O gets a larger cabinet and a second midrange driver, in the same small footprint.
Speakers out in the room or close to the wall? 👇
Full story via link in bio.
#SteinwayLyngdorf #SteinwayAndSons #loudspeakers #highendaudio #hifi #audiophile #interiordesign #bestofhighend
€1,499 for the pair 💶 That's what SVS asks for th €1,499 for the pair 💶
That's what SVS asks for the biggest stand-mount in its flagship Ultra Evolution series, diamond-coated tweeter and five-year warranty included. Stands and cables not included.
First Look via the link in bio. Our full review follows soon.
Sensible price for a flagship, or more than you'd spend on a pair of stand-mounts? 👇
#SVS #UltraEvolution #bookshelfspeakers #FirstLook #bestofhighend #hifi #highendaudio #audiophile
  • About us
  • Advertising
  • Contact
  • Terms and Conditions
  • Privacy Policy
  • Cookie Policy

© 2026 Best Of High End - by AV Concepts BV ·

Manage Consent
We use cookies to keep this site running, to measure how it is used, and to show videos from YouTube. Refusing costs you nothing: every article stays fully readable. Videos then show a short notice and load only when you click them.
Functional only Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
  • Manage options
  • Manage services
  • Manage {vendor_count} vendors
  • Read more about these purposes
View preferences
  • {title}
  • {title}
  • {title}
No Result
View All Result
  • Choose
    • Buying guides
      • Best Hi-Fi Accessories
      • Best Hi-Fi Amplifiers
      • Best Hi-Fi Loudspeakers
      • Best Streaming DACs
    • First looks
    • Reviews
  • Experience
    • Factory visits
    • Industry icons
    • Reports
  • Follow
    • News
  • Learn
    • Academy
    • Tech talk
  • Trust
    • Marco Lisi — Inside HQ
    • Daniel Březina — High-End, Lived-In
    • John Bugailiskis — Sound proof
    • Finn de Kroon — Kii room
  • Watch

© 2026 Best Of High End - by AV Concepts BV ·

Before you go — join the newsletter

Get the best in high-end audio, straight to your inbox. No spam, unsubscribe anytime.