Open Box Electronics For Sale
Open Box Electronics For Sale

Musical Fidelity MXHPA Open Box Balanced Headphone Amplifier

Regular Price: $999.00

You Save $429 (43%)

Your Price: $569.97

This Item Is Currently Unavailable.

Shop All Audio

Financing Available!

With the BrandSource Card at OneCall, financing your purchase is just as easy as ordering it. We've teamed up with Brandsource to provide low-interest or no-interest offers on over 3,000 brand-name products - plus the convenience of online payments.

We love to talk to our customers! Give us a call at 1.800.340.4770

We're there for you if things don't work out!
Read our Return Policy

OneCall is an Authorized Dealer for all of the products we carry!
Learn More

Details & Highlights

What is Open Box?

Open Box items are products that have been returned to us by customers, or were on display in our retail store. In most cases these items are in as-new condition. Although occasionally they may have had a minor defect repaired, these items are fully operational to manufacturer specifications. Open Box items include all supplied accessories and carry the full **manufacturer's warranty.
  • ** Excludes Definitive Technology, Monster, Beats by Dr. Dre, Klipsch and Onkyo products.
  • Availability is limited to stock on hand.
  • Open Box items are sold on a first-come first-served basis.
  • For more details please don't hesitate to give us a call at 1.800.340.4770

Product Highlights

    The incredible studio reference MX HPA fully balanced headphone amp has been a labour of love for everybody at Musical Fidelity. As some of you may have noticed we have been making headphones for some time and have always been great headphone fans. Although the M1 HPA is very good we wanted to make something which was incredible.

    The MX HPA fully balanced headphone amp is the result of decades of experience of making high quality headphone amplifiers. Relatively, the MX HPA has about the same performance into headphones as the incredible Titan has into loudspeakers. That is; awe inspiring, incredible, limitless and any other hyperbole you can imagine. It is really incredible.

Details from Musical Fidelity

    MX–HPA – Design and Build

    For the audiophile and avid music conigsuer, the MX HPA's technical performance will have you listening to old favorites for nuances you may not have been able to hear before. The high performance headphone amplifier typically delivers less less than 0.005% distortion within the frequency range of 20 Hz to 40 kHz. Impressively, the signal noise ratio is better than 120dB from the fully balanced Class "A" weighted amp. Needless to say frequency response is ruler flat from 10 Hz to 20 kHz (–0.1dB).

    The unit features two inputs, balanced and single ended. These are separate and an input select switch allows choice between separate balanced and single–ended sources. These inputs accept normal line–level signals of 300mV nominal (suitable for 30mV– >3V) from a wide range of equipment.

    Gain switching is provided to allow boost for higher impedance headphones, so the unit is compatible with all dynamic headphones regardless of impedance. It is recommended to use the LOW setting for headphones of 200 ohms or less; the HIGHsetting for headphones over 200 ohms or particularly insensitive headphones.

    It is capable of a short term peak of 10 watts (for one cycle). It has 2 gain positions; 18dB (8X) and 24dB (15X). Inputs are either balanced or single ended. It will automatically convert single ended inputs to balanced. The MX HPA is genuinely fully balanced from beginning to end.


Features & Specs

Best Seller
Manufacturer's Warranty
Detailed Specifications
  • Power: 1.8 Watts per channel into 8 Ohms (27dBW)
  • Maximum output voltage: 19 Volts RMS, 20Hz to 20 kHz Onset of clipping (54 Volts peak–to–peak) balanced

  • Line input
  • THD+N: >0.005% typical, 20Hz to 20 kHz
  • Signal / noise ratio: >120dB 'A'–weighted
  • Input impedance: 50k Ohms
  • Frequency response: +0, –0.1dB, 10Hz to 20 kHz
  • Gain: LO position (volume max) 18db (8x)
  • Gain: HI position (volume max) 24dB (15x)

  • Connections
  • Line level inputs: 1 pair line level XLR (balanced) connectors, 1 pairs line level RCA connectors
  • Headphone outputs: 1 pair 3–pin XLR/¼" stereo Jack combined sockets

  • Power requirement
  • Mains voltages: 90–250VAC 50–60Hz universal worldwide supply
  • Consumption Minimum: >0.25 Watts standby (Orange LED lit)
  • Consumption Maximum: 15 Watts (Blue LED lit, full power output)

  • Weight
  • Unit only: 5 lbs
  • Shipping carton: 8.25 lbs

  • Dimensions
  • Width: 8.66 inch
  • Height: 2 inch
  • Depth inc. terminals: 9.5 inch
Product Bullets


Included Coverage from Musical Fidelity:

Category ID: 178 | $569.97