Joule Black


Producing a reference level full-range speaker is a daunting task. With the increase in size and number of drivers, the importance of proper execution increases exponentially. With The Joule series all options were on the table, only after evaluating the world’s best drivers and researching new cabinet materials did we start prototyping the design. Finally after nearly 2 years of development and multiple prototypes was The Joule Black born. What the Joule series represents is perfection for all but the largest of rooms.

Like all models in the Vapor lineup, we begin by building the perfect cabinet.  And with the Joule, the cabinet is a work of art all by itself.  The construction consists of two independent pieces for the bass driver cabinet, and for the midrange/tweeter cabinet.  Each piece isolated from the other via Herbie’s Fat Dots.  The bottom bass section is a stacked Birch-ply construction, with a 10:1 tapering Transmission Line integrated into the CNC cuts.  Using the CNC and assembling the cabinet this way not only gives incredible strength, but allows us to give the Transmission Line the ideal amount of taper from beginning to end.  The top section is also CNC cut stacked Birch-ply made in the same shape as the Cirrus cabinet, thus allowing us to take advantage of the Finite Element optimization that was engineered into that shape.  The front baffle is made of 8 layers of high-density thermoplastic and aluminum sheet, which form an incredibly dense and strong launch platform for the music signal that is also well damped.  To blend it all together visually are complex CNC’d 3 dimensional shapes, end result is a stunning visual creation.

And the drivers are just as beautiful as the cabinet.  Providing the bottom end foundation is the Class Leading AudioTechnology 10C77 Sandwich Cone woofer.  This woofer is an example of what can be built when cost is no object, and provides bass speed and impact unmatched by any other.  The midrange is a custom AudioTechnology 18H SDKM with the new LR motor system, a midrange that’s not only dynamic and engaging but also musical and romantic.  And topping it all off is the RAAL 140-15D, in our minds the finest tweeter to be found at any price!

These World-Class drivers are then all blended masterfully.  The result is not only an incredible loudspeaker, but the finest speaker we’ve ever heard at any price.  The ability to easily show layering of harmonics is unlike anything you’ve likely ever heard before, and truly must be heard to believe.  And the bass foundation is better than the vast majority of stand-alone subwoofers can provide.  The Joule has it all!

To top it all off only the finest components are used throughout the build such as Clarity MR Capacitors, Jensen 12ga wax/paper inductors, and Duelund resistors. The Joule White is easily capable of differentiating sonic changes of crossover components, so we’ve chosen some of the finest as our starting point.

Black vs. White

Here at Vapor Audio we realize that there’s no such thing as “right” for everyone. When dealing with perception of a human sense, individual taste is all that matters. To give customers options, and ability to fit our designs to their taste, we offer most speakers in Black and White versions. Tonally they will be nearly identical, afterall they are both voiced by the same set of human ears. But the difference is what one might expect from a soft cone woofer versus a hard cone. Black versions offer softer cone paper drivers, while White versions offer harder ceramic cone drivers. The softer cone will smooth transients giving a warmer, more romantic presentation. The harder cone will give a very fast delivery of transients and a more lively presenation, with added detail retrieval.

It’s important to note the White is never forward or fatiguing, and the Black is never reticent or overly laid-back. Black and White offer different versions of essentially the same sound, options are a good thing. And with each the crossover optimized for the individual requirements of the unique driver compliment.

Joule Black pricing: starts at $32,995

The Joule Black Photo Gallery

  • Drivers Used RAAL 140-15D Amorphous Core Tweeter
    7″ custom Audio Technology 18H SDKM Midrange with LR motor
    11″ Audio Technology 10C77 Sandwich Cone woofer
    Cabinet Tuning 10:1 Tapering Transmission line, slot ported, tuned to 28hz
    Freq Response 22 – 38,500hz +/-3db, 30 – 26,000 hz +/- 1.5db
    Nominal Impedance 8 ohms
    Sensitivity 90 db
    Recommended Power 15-150 watts via Tube Amp
    30-250 watts via Solid State Amp
    Weight and Dimensions 280 Pounds
    46″ Height x 25″ Deep x 15.5″ Max Width
    Crossover Details Asymmetric slopes, 2nd order. Crossover points of 400hz, 1900hz
  • Custom Amorphous Core RAAL Ribbon Tweeter Element
    AudioTechnology 7″ midrange with zero diffraction surround
    Sandwich Cone AudioTechnology 11″ woofer in a tapering Transmission Line
    Phenolic/Aluminum Composite multi layer baffle
    Stacked Ply cabinet construction with mass loaded constrained layer top
    Vapor Audio’s proprietary Acoustic Inversion Layer dampening treatment to reduce cabinet wall resonance by over 20db.
    Acoustically isolated crossover compartment plinth

    Standard Crossover Features:
     12ga wax/paper Foil Inductors
    Clarity CMR Capacitors
    All point-to-point hand soldered with Cardas Silver Solder
    Dueland Resistors
    Crossover in separate vibration isolated chamber

    Connectivity and Wiring:
    WBT 0703 Binding Posts
    Wired internally Kimber 4TC on tweeter and midrange, Jupiter copper/cotton on woofer

  • Below is a listing of some more popular upgrades, many others are available.
    Crossover components, wiring, and binding posts can all be chosen by the customer.
    Contact us for details and pricing.

    Finish Upgrades:
    Upgrade from a standard veneer to premium veneer (burl, crotch, etc) – $500 (please inquire, price can vary)
    Hand Rubbed High Gloss Piano finish – $1500

    Crossover Upgrade packages:
    VH Audio Teflon V-Cap bypass capacitors - $600
    Jensen Silver/Foil bypass capacitors - $800 
     Copper/Foil capacitors – $2000 (CHOICE)
     CAST capacitors – $3000 (PERFECTION)

    – Please remember this is only a starting point for cap options. We have used many others not listed here and can offer insights on the best way to reach the sound you want, in the budget required. Inquire for more info

    Binding Post Upgrades:
    Bi-wire option with WBT 0703 – $60
    Upgrade to WBT 0730 Polished Gold or Platinum – $100
    – biwire with WBT 0730, $200
    Upgrade to WBT 0710 Silver or Gold – $150 Gold, $200 Silver (Finest binding posts available today)
    – biwire with WBT 0710, $300 Gold, $400 silver

    Internal Wiring Upgrades:
    Antipodes Reference
     Silver/Gold Litz wire throughout – $1200 (price can vary)
    Many additional options are available, contact us for pricing and details