ULTRA 55 

Von Schweikert Audio is proud to introduce our ULTRA 55, the third loudspeaker in this flagship reference series. Its technology and performance are essentially identical to the critically acclaimed and award-winning ULTRA 9 and ULTRA 11, but in a form factor that is far more adaptable to a greater number of sound rooms given its footprint and overall height.

 

  • Bringing you closer than ever before to the source, to experience the live event in the privacy of your home is the promise every Von Schweikert Audio loudspeaker seeks to deliver. The ULTRA 55 sets an unprecedented new standard for realism. To achieve this level of performance, we’ve leveraged more than 40 years of research and development in the creation of this revolutionary new model.

    • Extremely low distortion, class-defining clarity, three dimensional image focus, and lush harmonic structure set a new world standard.

    • MasterBuilt Ultra Internal Wiring comes standard on the ULTRA Line. Each signal path is individually shielded and damped with point to point connections. Designed by leaders in the Aerospace industry and made with rare and precious alloys. It’s simply the most transparent signal path available.

    • Incorporating exotic ceramic woofer and midrange drivers unique to the ULTRA Line of loudspeakers as well as our critically acclaimed Beryllium tweeters and ambient ribbon tweeters.

    • Point to point hand built networks with isolated architecture that protects crossover parts and wiring from electrical noise contamination.

    • Version 2.0 Aktive Cabinet Vibration Control, eliminating cabinet noise with new materials and layering techniques.

    • Time Alignment, Phase Consistency, and adjustable bi-polar sound radiation pattern for room-filling sound.

    In it’s standard configuration, the ULTRA-55 is offered as a traditional and purely passive reference loudspeaker with extremely accurate linear response from the factory.

    But for those interested in achieving the optimum linear response in their room with the fastest, tightest and deepest bass possible, we offer the ULTRA-55 Aktive version which incorporates our proprietary Foundation Amplifiers. With traditional passive speakers, the listening room will dictate not only where the speakers will need to be placed but also how good the bass will ultimately sound. With our ULTRA-55 Aktive version, each channel incorporates a 700-watt built-in Foundation Amplifier between the woofer binding posts and the passive crossover network for the dual bass drivers. This allows the owner to decide exactly where they would like to place the speakers in the room and then adjust the bass drivers with an analog attenuator to deliver highly accurate linear response in that location, regardless of room dynamics.

    This bi-amp technique allows anyone, in any room, to achieve superb bass depth and also enables matching of the bass level to the upper frequency ranges. Finally, a speaker for every room!

    To add the depth found in the concert hall, we have provided a rear-firing ribbon tweeter along with our Ambience Retrieval System with Effects Level Control. This Dipolar Design creates a “bubble” of sound rather than a narrow “beam,” generating a huge sweet space. For those listeners who do not require a subwoofer amplifier, we also build a Passive version.

  • The ULTRA 55 is a flagship level loudspeaker designed to fit into any mid-sized to smaller sound room on it's own. And can be the ideal loudspeaker for larger rooms when accompanied by our Shockwave subwoofers giving you ultimate flexibility.

    Each channel of the ULTRA 55 loudspeaker system is physically time-aligned and consists of twin 9" reinforced ceramic mid-bass drivers, a 7" reinforced ceramic midrange, a beryllium tweeter, and one 5" aluminum ribbon super tweeter (rear firing as part of the ambient retrieval system).

    When combined with low distortion motor assemblies and the highest quality crossover circuitry available, this transducer array produces the finest and most lifelike musical presentation available.

  • FREQ RESP: 20Hz - 40KHz

    SENSITIVITY: 89dB @ 1w/1m

    IMPEDANCE: 4ohms

    REC. MIN. POWER: 60 watts

    SIZE: 42" x 13" x 24"

    WEIGHT: 190 lbs each

    BOOSTER AMP POWER: 525 watts RMS

  • Five-Year Manufacturer Warranty

    *When purchased through an authorized dealer. Please see the Owners Manual for details.

  • The ULTRA 55 delivers all the speed and depth of bass, vocal resolution and tonal richness of our critically acclaimed and award-winning ULTRA 9 and ULTRA 11 flagship loudspeakers but in a form factor that will fit into almost any lifestyle. Through their low distortion design, the ULTRA 55 exceeds the competition in its ability to deliver more of the signal without the “information masking” from the competition’s higher distortion designs. Lastly, the ULTRA 55 can more accurately reproduce the original sound of recordings in essentially any environment using our proprietary analog room integration controls during their initial setup.

    The ULTRA 55 are the state-of-the-art in high-end audio loudspeaker design. Von Schweikert Audio allows you to simply enjoy the music by solving the many challenges of recreating the live event in your sound room.

    • 2021 Stereophile Recommended Component― Class A