Monitor Audio Gold Fx "Bipole"/"Dipole" Surround Speaker


Monopole or Dipole Mode:

  • In monopole mode for discrete side or rear sound channels its front-firing 6.5" RST bass/mid-driver and C-CAM ribbon transducer deliver accurate ultra-wideband sound to match the tonal balance of any 'Gold' speaker combination.
  • In dipole mode the Gold FX uses two pairs of side firing 4" C-CAM bass/mid drivers and 1" C-CAM gold-dome tweeters, combined with the tailored output from the front-firing bass/mid driver to provide wonderfully diffuse yet tonally precise surround effects.

C-CAM Technology:

  • The drivers of the Gold series FX surround loudspeaker utilize Monitor Audio's proprietary C-CAM speaker technology.

C-CAM Ribbon Tweeter:

  • Monitor Audio's proprietary ribbon tweeter design uses an ultra-thin sandwich of C-CAM alloy suspended in a powerful transverse magnetic field of high energy NeFeB rare earth magnets.
  • The ribbon serves as both voice coil and radiating diaphragm, with every part of the ribbon driven directly and simultaneously without energy storage.
  • Having a mass of just 18mg, its diaphragm is able to start and stop in an instant, producing a transient response capable of defining the leading edge and natural harmonic resonance of complex musical sounds.
  • Specified to reach ultra-high frequencies, this ribbon tweeter will reproduce with ease every last nuance and detail from vinyl, CD, DVD Audio, and SACD, together with the wider bandwidth of Blu-ray or high resolution digital audio.

C-CAM Gold-Dome Tweeter:

  • The gold dome tweeter is formed from a ceramic-coated aluminum/magnesium alloy, gold anodized to a specific thickness for ideal stiffness and damping characteristics.
  • Its new profile and surround geometry have been developed using advanced modeling tools, to provide the optimum qualities for accurate sound reproduction.
  • The new design moves the first order of breakup to beyond 35kHz, producing a linear response way beyond audibility, which matches the wide frequency bandwidth available from HD music and cinema sound formats.
  • The gold dome is thinner, lighter, more rigid and therefore more efficient than domes made from other materials which are prone to distortion in the audio band.

C-CAM Cone Woofers:

  • Ceramic-Coated Aluminum/Magnesium is a material originally developed by the aerospace industry for jet engine components.
  • Its properties are ideal for loudspeaker cones being extremely rigid, yet light enough to yield high overall efficiency.
  • In manufacture, aluminum/magnesium alloy undergoes a three-stage stress-relieving process to remove surface deformation and molecular weakness.
  • Once formed, the alloy cone is subjected to a high temperature anodic coating process in which a layer of pure ceramic alumina is depleted onto its surfaces to a depth of 50 microns, producing a completely rigid sandwich of alloy and heat-dissipating ceramic material.
  • Conventional cones are liable to flex or twist in operation, producing a significant level of audible distortion.
  • C-CAM cones have a much higher resistance to bending stress and therefore exhibit much greater fidelity over their entire operating range.

RST (Rigid Surface Technology):

  • The Gold series FX surround speaker combines Rigid Surface Technology (RST) with its C-CAM cone woofer design for a stronger, lighter weight cone.
  • The Rigid Surface Technology (RST) cone profile was inspired by the Japanese art of Origami, which demonstrates how a very light material (like paper) can be strengthened and made more rigid by making small and precise folds on it surface.
  • Developed and perfect using sophisticated computer modeling (Finite Element Analysis), the Gold series midbass drivers have been strengthened by a pattern of dimples.
  • RST significantly increases cone rigidity, allowing the radiating surfaces to resist mechanical bending forces, which can twist the shape of conventional driver cones to produce distorted sound.
  • The strengthening effect of RST means that Monitor Audio can use thinner, lighter and more responsive C-CAM cones which provide speed and accuracy while offering greatly reduced distortion.
  • The RST patterns also help to displace standing waves that can propagate on the cone's surface.

Single Through-Bolt Mount:

  • The drivers are fixed to the cabinet with a single through-bolt driver fixing mount.
  • This single-through-bolt mount design provides mechanical de-coupling and enhanced midband clarity and resolution.
  • The through-bolts also act as rigid cross bracing to give a very solid non-resonant cabinet.

Sealed MDF Enclosure:

  • The Gold FX employs a sealed MDF enclosure for accurate, uncolored sound.
  • Rigid 20mm MDF construction is used throughout the enclosure with radial and cross-bracing techniques for high rigidity and low cabinet coloration. 

High Quality Crossover & Wiring:

  • The Gold FX uses a high quality crossover with premium grade polypropylene film capacitors.
  • The speaker also utilizes "Pureflow" silver plated OFC copper internal cabling.

Dual Gold-Plated Binding Posts:

  • The surround loudspeaker has two sets of gold-plated binding posts connected by wire-jumpers.
  • The gold-plated binding posts will accept bare wire (up to 10AWG), pin connectors, & banana plugs (single only).
  • Using the dual posts, you can bi-wire or bi-amp the speaker. Bi-wiring or bi-amping the speaker provides improved bass & treble performance.
  • If you decide to bi-wire or bi-amp, you must remove the jumpers between the terminal posts (failure to do this could result in damage to your amplifier and loudspeakers).


  • Bi-wiring can provide noticeable improvements in the overall transparency of your loudspeakers.
  • Run separate speaker wires to the low & high frequency drivers from a single amplifier (the upper set of binding posts are for the high frequency drivers; the lower set of binding posts are for the low frequency drivers).


  • Bi-amping allows you to use separate amplifiers for the high & low frequency sections of your loudspeaker for greater dynamic range & lower distortion.
  • We recommend that your separate amplifiers have identical gain to preserve the speaker's voicing balance.


  • The Gold series FX surround loudspeaker offers unique controls to configure the speaker for your type of setup.

Monopole/Dipole Switch:

  • This switch determines the actual mode of the Gold FX speakers. When part of 5.1 systems as a rear speaker, set the switch to monopole.
  • If part of a 7.1 system as side speakers, set the switch to dipole. If using four Gold FX speakers (side & rear) set them all to dipole mode.

Location Switch:

  • This switch is used when determining the location of the Gold FX speakers. This will only make a difference when in 'di-pole' mode

Tweeter Attenuation Switch:

  • This switch adjusts the level of the high frequency tweeter. In the middle position, there is no attenuation.
  • Placed in the "-" position, the high frequencies will be attenuated by 3dB.
  • Placed in the "+" position, the high frequencies will be boosted by 3dB.

Mounting Options:

  • The Gold FX can be flush-mounted on side or rear walls.
  • Installation is made easy by the inclusion of a wall-bracket, which allows leveling and adjustment prior to fixing.
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