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Planus III Speaker Cables

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Product Description

MG Audio Planus III Speaker Cable

About MG Audio

MG Audio of Colorado designs cables focused on minimizing capacitive, inductive and skin effects that inevitably color the sound of all wires. The minimization of these factors is especially critical with low-level signals where loss of high frequency information and phase response is magnified. MG Audio designs cables based on physics and good engineering practice, not voodoo. The result of this design is that you can hear more clearly into the musical performance, catch details you have never heard before, and better capture the emotional expression of the artist.

Get Lost In The Music With The Planus III

The Planus III speaker cable is MG Audio's critically acclaimed, award winning cable and has been mentioned by many as one of the best (if not the best) reference speaker wires on the market today, regardless of price.

Planus III will bring your system's performance to a whole new level. The images in the soundstage will be better defined and more palpable, the bass will be tighter, deeper, and offer better definition of the harmonic structure. The low level information retrieval will have you listening to your audio system for hours on end.

2 Ways To Try The Planus III In Your Own System

1. In-Home Audition - Try The Planus III Speaker Cables in your own system over the course of a weekend, plus a few days. Please call us at 303-653-6341 to schedule your audition.

2. 30-Day Money Back Guarantee - If you need more time, we do offer the 30 day money back guarantee on the Planus III. 

Installation of the Planus Speaker Wires

In examining the Planus speaker wires you will note that there are two different types of spade lugs used. One end, the end with the MG Audio Design logo, has silver spade lugs. The other end uses rhodium spade lugs. This is unique to the Planus product and allows for slight changes in the voicing of a system. Switching which end is connected to the amplifier gives a slightly different sound from the other. We generally prefer the sound with the silver spades connected to the amplifier, but feel free to experiment. You may prefer the sound when the wires are connected the other way around.

Start with the Silver spades connected to your amp, and the rhodium spades to your speakers.

The silver spades used on our speaker wire can be used for either ¼” or 9 mm posts. The rhodium spades come standard in ¼” size. If you need 9mm rhodium spades on your cables, please contact us. Planus speaker wires are not directional, so they can be used in either direction. Too, the speaker wire is not polarity dependent. The black and red terminals are marked only for reference . Therefore, if it’s easier to hook up black to positive, feel free to do so. Just remember to connect at the other end the same way to maintain proper overall system polarity.

Care of Planus Wires

The Planus line of products is a completely different design than most speaker wires and interconnects. Because we use thin foils and films in their construction, they are somewhat delicate and will not withstand the abuse that more classically constructed cables can be subjected to. The wires should be handled by the terminated ends whenever possible. DO NOT pull on the wires themselves when disconnecting as this could damage the terminations and make the wires inoperable.

Although Planus wires are flat, they should not be run under equipment, carpets, or other objects. The insulation, while tough, is not designed to support foot traffic and will cut or tear if run across a sharp edge. Further, Planus interconnects are intentionally unshielded and should be kept away from sources of electrical noise, such as switching power supplies, radio transmitters, and similar devices. If you experience radio frequency interference (RFI) with Planus interconnect, please contact us. We can install RFI suppression devices on your cables. Finally, while the foils used in the construction of Planus wires is very flexible, continuous or frequent flexing of the wire should be avoided as it could lead to degraded sound and wire failure.


The Planus wire family is warranted against defects in materials and workmanship for 1 year. This warranty does not cover abuse of the wire. As a practical matter, we have wire that has been in use for over 20 years with no degradation of performance.

Product Reviews

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  1. Best speaker cable period. 5 Star Review

    Posted by on 11th Sep 2017

    I was reluctant to buy these to replace my favorite cables that actually cost more than the MG Audio but boy am I glad I did. I'm sure you heard all the tired old clich├ęs like removing the veil and hearing music that you never heard before so I won't go there but these are smack on and I absolutely love 'em. Many thanks to The Tweek Geek for carrying this brand.

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