Amp - Vero HCA 50ex Headphone Amplifier



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Vero HCA 50ex Headphone Amplifier

High Current, Class A/B extended range Headphone Amp with Multipole™ Technology.

The Vero HCA•50ex Headphone Amplifier is the world’s first high current, battery powered Class A/B headphone amp housed with MIT’s Multipole™ Technology. It features fifty poles of articulation.

Until now, MIT’s Multipole Technology has only been housed within the little “boxes” found on all of MIT Cables’ award-winning products. For the first time ever, MIT is integrating this technology inside an amplifier.

Bruce Brisson, founder and president of MIT Cables is fully engaged in the research and development of new products to fit into a more modern audio listeners lifestyle. The Vero HCA•50ex Headphone Amp is MIT Cable’s latest breakthrough product with MIT’s Multipole Technology inside. Designed in collaboration with Aaron Reiff, former Chief Engineer at Lucasfilm’s Skywalker Sound and former audio engineer at Capitol Studios in the iconic Hollywood Capitol Records building.

What do you do after you design the nicest High Current Multipole™ head amp you could think of?

If you’re Bruce Brisson, you add even more poles of articulation! The HCA•50ex begins as the HCA*29 and adds another separate section of Multipole circuits that work to increase soundstage, improve image stability and increase sense of dynamics allowing greater freedom of movement between the quietest passages and the most explosive crescendos.

This upgrade adds more MIT Multipole Technology for an incredible 58% increase in articulation. The moniker HCA•50ex denotes 50 poles of articulation and the lower case “ex” is calling attention to the extras you get with your upgrade.

What you get with the additional poles of articulation:

More natural Timbre for capturing the true “voice of the instrument”. Improved is the ability to distinguish differences between the delicate nuance of a trumpet from that of a cornet. Each is capable of playing the same note but each will “express” with its unique voice.

More natural Textures to accurately portray the proper density of the notes as they are painted on the extraordinarily dark and quiet background.

More dimension is added to the sonic envelope making it easier to define space between instruments.

Both versions represent extreme value and exceptional performance and the 50ex is nothing less than phenomenal. If you wish to start out with the HCA•29 and decide to wait to get your upgrade to the HCA•50ex you certainly can!

Features & Benefits:

  • 3 Watts of class AB power
  • Silent Power™–Battery powered supply circuit for super low noise floor
  • 10k input impedance for high current applications
  • 47 ohm output for enhanced stability
  • Frequency response: +/- 1/2 dbu from 3Hz to 60kHz for any type of critical listening
  • Gain = 13dB or a ratio of 20X for extra headroom
  • X talk -80 @ 1kHz keeps images crisp and clear
  • 10.25” X 6.75” X 2.25” size makes use and storage easy and transporting easier
  • 2.5lbs– can sit on any surface
  • Signal to noise: >88dBu for best low level resolution
  • 1/8th inch and RCA inputs for ease of use on most equipment
  • 1/4 inch outputs are robust and extremely easy to use


    Vero HCA 29 and HCA 50ex Headphone Amplifier (PDF)



    MIT Cables founder Bruce Brisson began purposefully designing audio cables in the 1970’s after encountering the sonic problems inherent in cables typical of the day. He later founded Music Interface Technologies in 1984 after patenting and licensing his early designs to other manufacturers, producing some of the audio industry’s most ground-breaking and seminal products. 

    MIT Cables core audio cable technology is our exclusive Poles of Articulation, named after the fact that every audio cable has a single point where it is most efficient at storing and transporting energy. At this point in the audio frequency spectrum, the cable will articulate best, and represents the cables’ particular Articulation Pole.

    Graph A: Represents the bandwidth of the audible range of the human ear. We will use this graph to describe how well a cable articulates across the audible bandwidth. The 50% line serves as our baseline for articulation response.

    Continue Reading about Multipole™ Technology

    Q: What are MIT Filterpoles™?
    A: Poles of Attenuation

    (as referenced in The Impedance Domain)*

    A properly built AC filter will not only attenuate unwanted noise on the AC power line, but it will also optimize the power factor.

    The best way to attenuate unwanted noise is to create a very low impedance (a zero of impedance across the load which acts as an attenuation pole to the noise) surrounding the frequency (or frequencies) of the undesirable noise. In the case of audio, that would be at any frequency other than the power line frequency. This is best accomplished by placing a tuned circuit in parallel, around the load. MIT was awarded this patent in November 9, 1993: number 5,260,862.

    Also important is the Power Factor which is a (dimensionless) number between 0 and 1. When power factor is equal to 0, the energy flow is entirely reactive, and stored energy in the load returns to the source on each cycle. When the power factor is 1, all the energy supplied by the source is consumed by the load and nothing is reflected back to the source. MIT was awarded a patent on this technology regarding audio in July 13, 1993: number 5,227,962.

    Continue Reading about Filterpole™ Technology

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