Vancouver's High End Audio Video Showroom

Main Navigation

YG Acoustics Sonja XVi 4-Tower eXtreme Speaker

YG Acoustics Sonja XVi 4-Tower eXtreme Speaker

SKU: Sonja XViYG Acoustics
$251,510.00 each
Ask a Question
In-Store Only

Product Description

  • Sonja XV is an extreme, four-tower version of Sonja, created to celebrate YG Acoustics' 15 year anniversary (2002-2017). It combines everything that we know about speaker-design, and incorporates several next-generation technologies that cannot be found elsewhere. Sonja XV - an entirely new sonic benchmark, truly extreme in every way... handmade in U.S.A.

    Innovations include, first and foremost, a breakthrough tweeter made in-house, and proprietary cost-no-object bass inductors. These enhancements, together with an ability to move near-limitless amounts of air, result in an effortless listening experience that is typically only associated with a live musical performance.

    The bass, midbass and midrange units are made in-house using YG Acoustics' proprietary BilletCore technology: the drivers are precisely machined out of massive slabs of aircraft-grade aluminum. This unique process offers overwhelmingly superior dynamics, musical delicacy and low distortion due to industry-leading rigidity and accuracy (tight tolerances). A pair of Sonja XV utilizes a total of 18 BilletCore drivers.

    The brand new, patent-pending BilletDome tweeter is YG Acoustics' most complex mechanical invention to date: a resonance-free soft dome is supported by a stiff, light airframe machined from aluminum billet. The airframe weighs a mere 30 milligrams (a thousandth of an ounce), but its critical sections are up to 14 times thicker than a typical hard dome, so its structural strength is vastly superior even to domes made of the most exotic hard materials. Finally, a tweeter that ends the age-old debate of hard dome versus soft dome, by combining the best of both.

    The tweeter's motor is YG Acoustics' ingenious ForgeCore system: in-house CNC-cutting introduces sophisticated 3D geometries into the magnet system. The resulting improvement is greatly reduced distortion and a sense of ease to the sound.

    YG Acoustics crossover circuits are all created using proprietary software developed entirely in-house. DualCoherent technology provides the best frequency response and relative phase available. Competing speakers are optimized in either the frequency domain (most common) or time domain. Only YG Acoustics has the ability to optimize both domains simultaneously.

    Sonja XV's bass crossover uses a brand new technology: ViseCoil inductors are CNC-wound in-house, then encased in a vise-like milled structure to eliminate vibration and tighten tolerances. Residual loss is reduced by 24%, and linearity is improved by 60%. The result is better control over the woofers, far greater bass impact, and an easier job for most amplifiers.

    Sonja XV's mid and tweeter crossover uses ToroAir technology: in-house CNC-wound toroidal air-core inductors are unique in eliminating cross-talk (cross-contamination) common in crossover circuits. The result is preservation of high-frequency detail without harshness, brightness or sibilance.

    Sonja XV's exquisite cabinet combines visual refinement with over-engineering. It is constructed of precision-machined aircraft-grade aluminum alloy. This material, using vibration-free pressurized assembly, allows for the most acoustically desirable enclosure achievable. The multi-layered structure is optimized for each module's specific frequency range. This ensures the lowest vibration achievable, even at extreme volume levels.

    FocusedElimination anti-resonance technology keeps mechanical losses lower than any competing speaker, by combining the minimized turbulence of a sealed design with the low friction otherwise associated with enclosure-free concepts.

    YG Acoustics speakers are not voiced. All measurements are verified using extensive listening tests, but the speakers are not artificially manipulated. YG Acoustics speakers simply convey the recording - nothing more, nothing less.

    The end-result: Sonja XV is the closest that we have ever come to the natural sound of a live performance. It will be heard by few and attained by even fewer, but those who hear it will likely echo the statement that our President Yoav Geva made upon finishing his masterpiece: "From now on, when I listen to music, I want it to be either live or with Sonja XV".
  • Expansions and Upgrades

    Existing pairs of YG Acoustics Sonja can be expanded to Sonja XV, without the need to replace the speakers.

    Sonja XV, in addition to its state-of-the-art two-channel (stereo) performance, is also fully compatible with multi-channel audio and home-theater systems. Sonja XV can also be combined with speakers from YG Acoustics' other lines for properly phase-coherent multi-channel systems.

  • Specifications

    ±1 dB in the audible band
    ±5° relative phase throughout entire overlap
    Exceptional pair-matching
    Usable output extends from below 20 Hz to above 40 kHz

    A four-way, four-tower system with a total of 20 drivers per pair of speakers
    BilletCore ultra-high-rigidity woofers, mid-woofers and mids

    BilletDome ultra-low-distortion tweeter, unique to Sonja XV

    Sonja XV is fully-passive
    Proprietary DualCoherent crossover at 65 Hz, 337 Hz and 1.75 kHz
    Designed using software developed in-house
    ViseCoil bass inductors reduce residual loss and improve linearity, for greater bass impact and an easier job for most amplifiers

    ToroAir mid and tweeter inductors eliminate cross-talk

    88 dB / 2.83 V / 1 m π anechoic

    4Ω nominal, 3.5Ω minimum

    4 towers, each 179x43x72 cm (70x17x28") HxWxD

    4 towers, each 210 kg (463 lbs) per channel unpackaged
    Shipping weight of a pair is 1.3 tons


All orders are processed within 48 hours from date of order.

We offer Free Ground Shipping on all orders regardless of size.  

  • If you would like to receive your order quicker you can request Express shipping during Check-Out in the Comments section.  Additional charges will apply.
  • In-stock items are shipped from our Vancouver warehouse and will reach major Canadian cities in 5-7 business days.
  • Items not in stock will either ship from one of our manufacturer partners' warehouses or in rare cases first must be sent to Vancouver and then to you.  
    • If the expected arrival to you will be more than 7 business days you will be notified by email and at that point you will have the option to proceed or if you cannot wait then order can be cancelled.

Returns Policy 

We will gladly:

  • (a) exchange a product that is not special ordered, or shipped from one of our partner warehouses, for a new product of equal value (product purchased must be unopened)
  • (b) exchange a product if it is defective or damaged for the same product

within 15 days after the product has been delivered to you.

Returns for refund are not accepted.

For an exchange, you must notify us by email at We will acknowledge receipt of your email by reply and assist you in returning the product as identified below. Make sure to send and have your return package post marked within the 15 days after the product has been delivered to you.


  • Headphones may not be returned or exchanged for any reason, only defective units will be replaced for the same model
  • Items that have been opened may not be returned


Notwithstanding the foregoing, you may cancel an order if the product is not delivered to the delivery address on your order form within 30 days of the date your order is accepted.

To cancel, you must notify us by email at We will acknowledge receipt of your email and process the cancellation.

Returns Packaging:

Products returning for exchange must be unused and in their sealed, original factory packaging.

Buyer is responsible for return shipping costs.

Ask A Question

Do Not Pay for 6 Months!

No Interest, No Payments for 6 months when you use the Flexiti Card. Sign up today!