SEO Title: Magnepan MG 3.6R Review – Vintage Planar Speakers With Scale, TransparencyTransparent / Transparency - A clear view into the recording space, no opaqueness, just openness and clarity. and Demands

Meta Description: A detailed Magnepan MG 3.6R review covering setup, room placement, amplifier matching, ribbon tweeter performance, bass limitations, crossover notes and used-market ownership.

Magnepan MG 3.6R Review: Vintage Planar Speakers With Scale, Transparency and Demands

The Magnepan MG 3.6R is not the sort of loudspeaker that reveals itself fully in a weekend. It has taken me quite some time to get a proper handle on these vintage Magnepan speakers, to understand their strengths and weaknesses, and ultimately to appreciate what the 3.6R does best.

Part of that extended learning curve was my fault rather than the speaker’s. I changed too many components in too short a period of time, which made it difficult to isolate exactly what the Magnepans were doing. Moving house was the primary culprit. The new listening room was much larger than my previous space, and that triggered a chain reaction of system changes, amplifier trials, speaker-position experiments and setup adjustments.

That said, the Magnepan MG 3.6R is a speaker that invites this kind of experimentation. It is revealing, room-dependent, amplifier-sensitive and not especially forgiving of casual setup. But when everything starts to lock into place, the 3.6R can produce a scale, openness and freedom from box coloration that few conventional loudspeakers can match.

Magnepan MG 3.6R Design and Construction

Most audiophiles are familiar with Magnepan speakers and what they represent. The MG 3.6R sat one down from the top of the Magnepan range, with the larger MG 20.1 occupying the flagship position at the time.

The MG 3.6R is a three-way planar magnetic loudspeaker with a true ribbon tweeter. It uses three planar-magnetic drivers: a 55-inch-tall aluminum foil ribbon tweeter, a 199-square-inch, 0.5-mil-thick Mylar midrange diaphragm, and a 500-square-inch Mylar bass panel.

On paper, the specification can make the 3.6R look more manageable than it really is. Rated at 85dB/500Hz/2.83V sensitivity with a 4-ohm impedance, it would be easy to assume that the speaker presents a fairly conventional load and does not require especially serious amplification. That assumption would be optimistic. The Magnepan MG 3.6R needs power, but more importantly, it needs current, control and amplifier quality.

Much of the Magnepan sonic signature comes from the absence of a conventional box enclosure. A typical cabinet loudspeaker carries with it the influence of the enclosure: stored energy, cabinet resonance, internal reflections and the general sonic character imposed by a large wooden structure. The Magnepans largely avoid that. Their presentation is open, unboxed and fundamentally different from most dynamic driver speakers.

Buying and Handling Used Magnepan MG 3.6R Speakers

These speakers were purchased used, so they were fully broken in when they arrived. That removes one variable from the review, though it introduces the usual considerations that come with buying large used speakers.

Many people probably reject Magnepan as a used-speaker option because of the practical problems associated with shipping and handling such a large, fragile-looking object. In reality, if they are properly crated, they are no more prone to shipping damage than any other large loudspeaker of similar proportions.

The MG 3.6R measures approximately 24 inches wide, 71 inches tall and 1.625 inches deep. They are physically imposing, but not especially heavy. Unpacking, assembly and preliminary positioning were therefore manageable for one person, though the size alone means patience and care are required.

Build Quality, Stands and External Crossover Boxes

Magnepan, for reasons known only to them, have never seemed fully committed to the idea that rigid construction is best. The stock stands are flimsy at best. A gentle push at the top of the speaker sends it swaying to and fro like a drunken sailor.

One might argue that this matters less with a true dipole design, where the speaker radiates sound from both the front and rear and may therefore experience a different pattern of mechanical forces than a conventional box speaker. Even so, it is disconcerting to see such a basic support structure on a loudspeaker that retailed for more than $4,000.

The external crossover box is also disappointing, particularly in the way it couples to the rear of the speaker. Since the MG 3.6R is a three-way design, the tweeter crossover components are mounted inside the speaker, while the bass and midrange crossover components sit in small external boxes attached to the back of the panels.

Those boxes connect using supplied metal pins, which also act as electrical conductors between the crossover box and the speaker terminals. Small brackets are supplied to support the crossover boxes and remove stress from the pins. The arrangement works, but it feels barely adequate.

This creates something of a contradiction. How can a speaker gain so much critical acclaim while appearing to disregard so many accepted ideas about construction, rigidity and mechanical support? It leaves me wondering what a proper “hot-rod” version of the MG 3.6R might sound like: rigid frames, integral stands that brace the full height of the panel, better floor coupling, improved internal wiring, upgraded crossover components and proper spade connectors in place of the cheap banana fittings.

These changes would not necessarily alter the fundamental character of the speaker, but they might allow the design to perform at a higher level. The MG 3.6R is already considered something of a bargain in high-end audio terms. With better mechanical execution, it might have reached into an even more serious performance class.

Positioning the Magnepan MG 3.6R

You cannot expect to set up a large dipole planar speaker in the same way you would a conventional floor-mounted box speaker. At a basic level, the Magnepan MG 3.6R needs room to breathe. It also needs space behind the speaker to develop stage depth.

Dipoles radiate sound in a figure-eight pattern, which means sidewall, floor and ceiling influences are different from those of a typical box speaker. In my listening room I had the ability to place the speakers quite freely, with as much as eight feet behind them, fourteen feet between them, and good clearance from the side walls.

That was not where they ultimately stayed, but it gave me a useful starting point. With the stock stands on a carpeted floor, moving the speakers around was simple. They slide quite easily, which makes experimentation less painful than their size might suggest.

Toe-In and Tweeter Placement

Magnepan often shows a fairly steep toe-in angle, and I experimented with everything from no toe-in to approximately 45 degrees. Magnepan also recommends that the tweeter be placed at a greater distance from the listener than the bass panel, since the ribbon tweeter can dominate the sonic picture in some rooms and setups.

With a strong toe-in angle, this would typically mean placing the tweeters on the inside edges. After considerable experimentation, I finally settled on a much gentler toe-in of around three to five degrees, with the tweeters on the inside edges of the speakers.

This gave me the best balance of image focus, tonal balanceTonal Balance - The relationship between bass, midrange, and treble, whether the sound leans warm, neutral, bright, or thin. and stage width in my room. As always with large planar speakers, there is no universal setup rule. The room, listening distance, amplifier and listener preference all matter.

System Matching and Setup Tweaks

I tried several amplifiers with the Magnepan MG 3.6R, including powerful tube monoblocks and bi-amped solid-state configurations. I will not describe the sonic attributes of every amplifier here, though the short version is that the Magnepans made it very clear what each amplifier was doing.

I also implemented a few simple tweaks along the way:

• Cardas crossover pin replacements: an absolute must.
• Cardas tweeter attenuator pin replacements: an absolute must.
• Sound Organisation custom Magnepan stands: a marginal improvement. MYE stands are supposedly much better.

The pin replacements, in particular, are not subtle in concept. The factory connection method is not confidence-inspiring, and replacing those basic metal pins with better-quality alternatives makes sense both mechanically and electrically.

Magnepan MG 3.6R Sound Quality

My immediate impression of the Magnepan sound was simple: wow.

I am not a newcomer to this type of presentation. I have owned Quad ESL57 electrostatics and Apogee Caliper Signature IIs, along with a variety of conventional box speakers. Even with that background, the MG 3.6R makes an immediate impression.

The first thing that strikes you is how open and natural the speaker sounds. You quickly realize that a significant percentage of what you hear from many conventional loudspeakers is the box. The Magnepans remove much of that enclosure signature, and the result can be startlingly free and unforced.

The second thing you notice is that the Magnepan MG 3.6R expresses music differently from most box speakers. The sound has tremendous scale and clarity, but the timbreTimbre
How realistic instruments sound in tone and character, like whether a piano sounds like a real piano. and texture of acoustic instruments can lack some fullness and roundness. An upright bass, for example, may be clear, articulate and well placed, but it may not always have the physical body and tonal densityTonal Density
The sense of body and substance to notes, especially in vocals and instruments, rather than sounding thin or bleached. that some dynamic speakers provide.

Sound flows from these speakers in a broad, open wave. It does not jump forward with the same dynamic snap and attack that many conventional box speakers deliver. Whether that is a strength or a weakness depends on your priorities.

Comparison With Conventional Box Speakers

I recently listened to Talon Peregrine speakers, albeit in a less-than-ideal setting, and they struck me as having some qualities similar to the Magnepans. The Talons also moved away from the usual box-speaker presentation, offering an effortless and flowing sound without the same kind of dynamic attack and presence.

Other speakers I listened to around the same period included models from B&W and Kharma. The B&W 808, which I lived with in my own system for a full week, presented music in a completely different way from the Magnepans. More conventional, certainly, but not necessarily worse.

This is one of the things that makes high-end audio interesting. Two very different loudspeakers can both be serious contenders, yet present music in almost night-and-day fashion. The Magnepan MG 3.6R does not simply sound like a box speaker with less box coloration. It asks you to recalibrate your expectations of how a loudspeaker should project scale, space, dynamics and tonal weight.

Soundstage, Imaging and Scale

With my listening chair approximately 17 feet from the speakers, and the speakers moved in to around 13 feet apart, the soundstageSoundstage - The overall size and shape of the musical “space” a system creates, including width, depth, and height. from the MG 3.6R was huge. Center fill was excellent, and the overall stage presentation was cohesive.

Stage width easily extended beyond the outer edges of the speakers when the recording allowed it. Depth was also good, though not as deep as the best I have heard from Quad ESLs. The Magnepans excel at scale and openness, but they do not always produce the most holographic layeringLayering - How well a system separates different instruments and musical lines, especially when multiple sounds overlap. in every setup.

Still, when these speakers are given a large enough room and enough distance from boundaries, the physical size of the presentation is one of their defining qualities. They do not miniaturize music. They can make a small jazz group, acoustic recording or live performance feel appropriately large and unconstrained.

Bass Performance and Tonal Balance

Bass was somewhat lacking, both in the low bass and in the mid-to-upper bass. This gave the overall sound a leaner tonal balance than I would ideally prefer.

I was able to improve the bass response slightly using the Rives Audio Test CD2. By playing low-frequency test tones and moving around the room, I found a listening position where the 50Hz to 80Hz region was slightly reinforced. This gave the system a little more warmth and bass presence.

Even so, the Magnepan MG 3.6R is not a speaker for listeners who demand visceral low-frequency impact. The bass can be articulate, tuneful and well integrated, but it does not provide the same physical punch as a large dynamic-driver loudspeaker.

Ribbon Tweeter Balance

I also initially found the tweeter to be a little too bright for my taste. There was simply too much treble energy in some configurations. Brass instruments, solo trumpet and even some woodwind recordings could come across with more force than seemed natural.

Moving the speakers closer to the front wall helped tame the forward treble balance, but the trade-off was a reduction in soundstage depth. I was able to achieve a compromise between tonal balance and stage depth, but it always felt as though one gain came at the expense of another.

At this stage, I was not fully satisfied. I could hear what the Magnepans did exceptionally well, but I could not quite live with the overall tonal balance long-term.

The Amplifier Search

The comments above span a variety of system changes, most of which were implemented in an effort to correct tonal balance and unlock the qualities I believed the MG 3.6R had to offer.

Those changes mostly involved power amplifiers. Amps from McIntosh, Belles, Conrad Johnson, Cary and Perreaux came and went in a relatively short period of time. Each had its own signature and contributed something different, but none fully corrected the speaker’s deficiencies in my system.

The Magnepan MG 3.6R is often described as amplifier-hungry, and that description is fair. But it is not just about watts. It is about the quality of those watts, the amplifier’s ability to deliver current, and its capacity to control a large planar speaker without hardening the treble or thinning the midrange.

Enter the Krell FPB200

Just as I was close to giving up on the Magnepans, a local audiophile friend, Nrchy, suggested an amplifier swap for fun. Out went my beautiful Cary V12i monoblocks, and in came his rather sinister-looking Krell FPB200.

The change was immediate and significant.

The first thing that became apparent was that these speakers really do need a barrel full of clean power. Forget paper watts. The MG 3.6R needs real watts, real current and an amplifier with grip.

The Krell opened up the speakers and created a pure, effortless sound that made the speakers seem to disappear. It produced a highly transparent presentation with extended stage width and improved depth. The stage changed from somewhat recessed to more immediate, not in a bright or tonally forward sense, but in terms of the physical placement of performers.

Improved Dimensionality and Image Focus

With the Krell, the stage became more layered and three-dimensional. I could now sense more clearly that performers were not standing in a flat line between the speakers, but occupying different positions at varying distances from the front of the stage.

This improvement in dimensionality also improved my perception of image specificity. I had previously considered the imagingImaging - How precisely a system places instruments and voices in specific positions between the speakers, with clear separation and focus. to be fairly good, but the Krell presented images with sharper definition, more space around each performer and a greater sense of presence.

The Krell also seemed to render scale more accurately. The Cary amplifiers created large, almost bloated images, often confined within the outer edges of the speakers. Track 7 on Diana Krall’s Live in Paris, for example, presented a piano that seemed to occupy an absurdly wide portion of the soundstage. With the Krell, image size became more realistic and the overall presentation more believable.

Bass Control With the Krell

The Krell also took a firmer grip on the lower octaves, which is exactly what one might expect given its reputation. I cannot honestly say that the bass was more extended than with the Cary or even the Perreaux 3150B, but it was more tuneful, articulate and controlled.

This did not turn the Magnepan MG 3.6R into a bass monster. It did, however, make the bass less vague and better integrated with the rest of the frequency range. The speaker still leaned slightly lean overall, but the sound became more coherent and convincing.

Listening Impressions With Familiar Music

Playing track after track of familiar music, I found myself repeatedly impressed by the scale of the presentation. Audiophiles often talk about recreating the illusion of live performers in the listening room. But when was the last time you saw a five-piece band performing on a stage only seven feet wide?

To recreate the impression of live music, you need physical space. With the Magnepans sitting around 13 feet apart and well away from the side walls, the stage scale was spectacular.

The Cowboy Junkies’ The Trinity Session is a well-recorded album with minimal post-production processing and a strong sense of acoustic space. Through the MG 3.6R, the performers were placed realistically on a stage that seemed released from the physical boundaries of the speakers. The reverberant ambience of the church recording space appeared to envelop the room.

These were not miniature performers squeezed between two boxes. They were life-sized performers and instruments, with space between and around them, as one would expect at a live acoustic event.

The sense of three-dimensionality was not the best I have ever heard. That accolade still goes to a system I heard many years ago built around Linn Isobariks, active Naim amplification and an LP12/Ekos/Troika front end. But the Magnepan/Krell combination was very good, particularly late at night when the AC supply seemed cleaner.

Cables, Balanced Connections and System Transparency

Despite the obvious improvements brought about by the Krell, the tonal balance was still a touch too lean for me to be completely satisfied. I was able to move the presentation closer to neutral by changing interconnects and speaker cables.

Running balanced XLR cables to the Krell also made a significant improvement over single-ended cables. This remained true even when comparing expensive Purist Audio RCA cables with relatively inexpensive DH Labs Silver XLRs at roughly one tenth of the price.

It is an old cliché, but in this case it is accurate: the Magnepan MG 3.6R is highly revealing of everything upstream. Source components, amplifiers, cables, room placement and even small setup changes all leave their mark.

Who Are the Magnepan MG 3.6R Speakers For?

The Magnepan MG 3.6R is not a speaker for everyone. It is not ideal for small rooms, casual placement, low-powered amplifiers or listeners who prioritize punch, slam and deep bass impact above all else.

It is, however, a compelling speaker for listeners who value openness, scale, transparency, acoustic space and freedom from box coloration. If you listen to jazz, acoustic music, vocals, live recordings, classical music or anything where spatial realism matters, the MG 3.6R can be deeply rewarding.

It also remains an interesting used-market speaker because it offers a type of presentation that is still relatively uncommon. Many modern loudspeakers are more compact, easier to place and easier to drive, but few create the same broad, open, panel-speaker illusion when properly set up.

Magnepan MG 3.6R Review Conclusion

There is something very special about the Magnepan MG 3.6R, particularly when your listening room allows flexible placement and good distance from the speakers to the walls.

The tonal balance is a little tipped toward bright, and the bass will not satisfy everyone. But the bright presentation can be tamed through careful setup, thoughtful component matching, appropriate amplification and cable choices.

The MG 3.6R is clearly capable of stellar performance when certain constraints are removed. It needs space. It needs patience. Most of all, it needs a high-quality, high-current amplifier that can properly control the panels and allow the speaker’s transparency and scale to emerge.

If you have the time, patience and inclination to pursue a sound that is open, full-scale, articulate and largely free from the sonic colorations of conventional speaker boxes, the Magnepan MG 3.6R remains highly recommended.

Just be prepared to work for it.

Note: Read my notes on a complete crossover rebuild for the Magnepan 3.6R.